The U.S. aircraft register, updated daily
Plan a flight · Tue 7:04 am CDT (12:04 UTC)

Algona Municipal to Chicago Midway International AXA → MDW

299 nautical miles (344 statute miles) east on a straight line, true course 103°, about 100° magnetic at the departure end (variation 3E). At 120 knots that is 1 h 28 min at the quickest height in today's winds (34,000 ft, a 85-knot tailwind), arriving about 8:32 am CDT (13:32 UTC). Right now MDW is VFR, wind from the west-southwest (240°) at 8 knots. For planning, not a briefing: the legal preflight briefing comes from Flight Service (1-800-WX-BRIEF) or the FAA's own tools. Airlines fly this pair: 1 flights in the DOT's last twelve reported months, the route's page.

The return flight

The route the straight line, the warnings crossed, restrictions, pilot reports and the airports along the way · click a mark for its words

Green, blue, red and purple airport dots are the flying conditions reported there now (VFR, marginal VFR, IFR, low IFR); grey means no report. Red areas are SIGMETs, orange areas AIRMETs, hatched red areas temporary flight restrictions. Map tiles: OpenFreeMap, data © OpenStreetMap contributors.

Warnings the route crosses SIGMETs and AIRMETs whose area the line passes through or comes within 25 nm of

  • SIGMET C33C: thunderstorms (a convective SIGMET) up to 36,000 ft, moving from the southwest at 35 knots, until 8:55 am CDT (13:55 UTC). Near the route, 130 nm along the route.
    as issued
    WSUS32 KKCI 131155
    MKCC WST 131155
    
    CONVECTIVE SIGMET 33C
    VALID UNTIL 1355Z
    IA
    FROM 40N IOW-30SE IOW-50S DSM-20W DSM-40N IOW
    AREA TS MOV FROM 21035KT. TOPS TO FL360.
  • AIRMET TANGO 1W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Near the route, at the destination end.

Turbulence No turbulence warning in force along the route. AIRMET in force: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground), near the route, at the destination end. 1 pilot report of turbulence near the line in the last three hours: light chop turbulence, at 31,000 ft, 13 nm north, 5:51 am CDT (10:51 UTC). The government's turbulence forecast map ↗

Icing No icing warning in force along the route. No pilot has reported icing near the line in the last three hours. The freezing level is about 13,500 ft (from the winds-aloft temperatures), so icing is possible in cloud above that. The government's icing forecast map ↗

A SIGMET warns of weather hazardous to all aircraft; an AIRMET of weather that matters to small aircraft and to flying without instruments. "From 60 to 180 nm out" is measured along the route from AXA.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

  • B738 at 2,500 ft, 43 nm south, 6:55 am CDT (11:55 UTC): overcast from 900 ft to 2,500 ft. 130 nm along the route, 43 nm south of the line.
    as filed, and in English
    CID UA /OV KCID/TM 1155/FL025/TP B738/SK SK/ OVC009-TOP025
    Report
    a routine report filed through CID
    Where
    over KCID
    Time
    11:55 UTC
    Height
    at 2,500 ft
    Aircraft
    B738
    Sky
    sky; overcast from 900 ft, tops 2,500 ft
  • CRJ7 at 3,000 ft, 43 nm south, 6:09 am CDT (11:09 UTC): overcast from 1,800 ft to 2,500 ft. 130 nm along the route, 43 nm south of the line.
    as filed, and in English
    CID UA /OV KCID/TM 1109/FL030/TP CRJ7/SK OVC018-TOP025
    Report
    a routine report filed through CID
    Where
    over KCID
    Time
    11:09 UTC
    Height
    at 3,000 ft
    Aircraft
    CRJ7
    Sky
    overcast from 1,800 ft, tops 2,500 ft
  • E170 at 3,000 ft, 43 nm south, 5:15 am CDT (10:15 UTC): overcast from 1,700 ft to 2,100 ft. 130 nm along the route, 43 nm south of the line.
    as filed, and in English
    CID UA /OV KCID/TM 1015/FL030/TP E170/SK OVC017-TOP021
    Report
    a routine report filed through CID
    Where
    over KCID
    Time
    10:15 UTC
    Height
    at 3,000 ft
    Aircraft
    E170
    Sky
    overcast from 1,700 ft, tops 2,100 ft
  • E170 at 31,000 ft, 13 nm north, 5:51 am CDT (10:51 UTC): light chop turbulence. 159 nm along the route, 13 nm north of the line.
    as filed, and in English
    DBQ UA /OV DBQ360015/TM 1051/FL310/TP E170/TB CONS LGT CHOP
    Report
    a routine report filed through DBQ
    Where
    15 nm north (360°) of DBQ
    Time
    10:51 UTC
    Height
    at 31,000 ft
    Aircraft
    E170
    Turbulence
    continuous light chop

Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 UTC · at 120 knots true airspeed

The eastbound cruising heights for this course (VFR: odd thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 3 forecast points nearest it (MCW, DBQ, JOT). A plus sign is a headwind, a minus sign a tailwind.

HeightAverage windHead- or tailwindTemperatureGround speedTime en routeArrival
3,500 ft300° at 23 kt−23 kt143 kt2 h 05 min9:09 am CDT (14:09 UTC)
5,500 ft280° at 32 kt−31 kt151 kt1 h 59 min9:03 am CDT (14:03 UTC)
7,500 ft280° at 36 kt−35 kt14 °C155 kt1 h 56 min9:00 am CDT (14:00 UTC)
9,500 ft280° at 38 kt−37 kt10 °C157 kt1 h 54 min8:58 am CDT (13:58 UTC)
11,500 ft280° at 38 kt−38 kt4 °C158 kt1 h 54 min8:58 am CDT (13:58 UTC)
13,500 ft270° at 39 kt−39 kt0 °C159 kt1 h 53 min8:57 am CDT (13:57 UTC)
15,500 ft270° at 41 kt−39 kt-5 °C159 kt1 h 53 min8:57 am CDT (13:57 UTC)
17,500 ft260° at 43 kt−40 kt-9 °C160 kt1 h 52 min8:56 am CDT (13:56 UTC)
18,000 ft FL180260° at 44 kt−40 kt-10 °C160 kt1 h 52 min8:56 am CDT (13:56 UTC)
24,000 ft FL240270° at 52 kt−50 kt-20 °C170 kt1 h 46 min8:50 am CDT (13:50 UTC)
30,000 ft FL300280° at 80 kt−80 kt-29 °C200 kt1 h 30 min8:34 am CDT (13:34 UTC)
34,000 ft FL340280° at 85 kt−85 kt-37 °C205 kt1 h 28 min8:32 am CDT (13:32 UTC)
39,000 ft FL390280° at 84 kt−85 kt-49 °C205 kt1 h 28 min8:32 am CDT (13:32 UTC)

Based on data from the 13th at 06:00 UTC; valid on the 13th at 12:00 UTC for use 08:00 to 15:00 UTC; temperatures above 24,000 ft are below zero. Heights are above sea level; a height is left out when the forecast has no wind for it over most of the line (the ground is higher). Ground speed is the airspeed less the headwind; the time en route is for the straight line and ignores climb, descent and routing around weather.

The forecast points as issued
PointFrom3,0006,0009,00012,00018,00024,00030,00034,00039,000
MCWused from 0 nm out; 20 nm from the line330/20280/29 18°280/36 10°280/36 4°260/35 -12°260/52 -20°270/91 -29°270/96 -37°270/88 -48°
DBQused from 100 nm out; 38 nm from the line300/20270/37 18°280/37 11°280/38 3°260/50 -10°270/53 -20°280/78 -29°280/82 -37°290/85 -49°
JOTused from 249 nm out; 24 nm from the line280/38270/37 18°270/43 12°270/45 3°260/44 -8°280/52 -21°300/70 -29°300/81 -38°300/84 -49°

The weather now: both ends and the airports along the way public airports with a weather report within 25 nm of the line, one for each stretch

AirportWhereConditionsWindVisibilityCeilingElevationReported
AXA Algona, IA departure reported, no category from the north (360°) at 4 knots 2,000 ft 1,216 ft 6:55 am CDT (11:55 UTC)
MCW Mason City, IA 40 nm out, 14 nm north of the line marginal VFR Sky: overcast at 2,100 feet from the northwest (320°) at 5 knots 10+ mi 2,100 ft 1,213 ft 11:53 UTC
HPT Hampton, IA 50 nm out, 10 nm south of the line marginal VFR Sky: a broken layer at 1,400 feet from the northwest (320°) at 4 knots 10+ mi 1,400 ft 1,176 ft 11:55 UTC
ALO Waterloo, IA 90 nm out, 11 nm southwest of the line, tower marginal VFR Sky: overcast at 1,800 feet from the west (280°) at 9 knots 10+ mi 1,800 ft 873 ft 11:54 UTC
DBQ Dubuque, IA 159 nm out, 3 nm southeast of the line, tower VFR from the northwest (310°) at 8 knots 10+ mi none 1,076 ft 11:53 UTC
FEP Freeport, IL 209 nm out, 5 nm northeast of the line VFR from the west-northwest (290°) at 7 knots 10+ mi none 859 ft 11:55 UTC
RFD Chicago/Rockford, IL 239 nm out, 8 nm north of the line, tower VFR Sky: a few clouds at 20,000 feet from the west-southwest (240°) at 8 knots 10+ mi none 742 ft 11:54 UTC
DPA Chicago/West Chicago, IL 279 nm out, 3 nm northwest of the line, tower VFR from the west-southwest (250°) at 9 knots 10+ mi none 758 ft 10:52 UTC
MDW Chicago, IL destination VFR Sky: a few clouds at 11,000 feet from the west-southwest (240°) at 8 knots 10+ mi none 619 ft 6:53 am CDT (11:53 UTC)

The highest airport on this list sits at 1,216 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

The codes as issued, and in English, for every airport in the table

AXA Algona, IA

the observation as issued, and in English
METAR KAXA 131155Z AUTO 36004KT OVC020 12/09 A2989 RMK A01
METAR
a routine hourly observation
KAXA
the station, KAXA
131155Z
observed 6:55 am CDT (11:55 UTC)
AUTO
fully automated report, nobody checked it
36004KT
wind from the north at 4 knots
OVC020
overcast at 2,000 feet
12/09
temperature 12 °C (54 °F), dew point 9 °C (48 °F)
A2989
altimeter setting 29.89 inches of mercury
RMK
remarks follow
A01

MCW Mason City, IA

the observation and the forecast as issued, and in English
METAR KMCW 131153Z AUTO 32005KT 10SM OVC021 12/09 A2988 RMK AO2 SLP107 T01170094 10156 20111 53009
METAR
a routine hourly observation
KMCW
the station, KMCW
131153Z
observed 11:53 UTC on the 13th
AUTO
fully automated report, nobody checked it
32005KT
wind from the northwest at 5 knots
10SM
visibility 10 miles
OVC021
overcast at 2,100 feet
12/09
temperature 12 °C (54 °F), dew point 9 °C (48 °F)
A2988
altimeter setting 29.88 inches of mercury
RMK
remarks follow
AO2
automated station with a precipitation sensor
SLP107
sea-level pressure 1010.7 hPa
T01170094
temperature 11.7 °C (53 °F), dew point 9.4 °C (49 °F)
10156
highest temperature in the last six hours 15.6 °C (60 °F)
20111
lowest temperature in the last six hours 11.1 °C (52 °F)
53009
pressure in the last three hours rising, faster lately, change 0.9 hPa
TAF KMCW 131128Z 1312/1412 32008KT P6SM OVC020 FM131900 33006KT P6SM OVC030 FM132200 31008KT P6SM OVC050 FM140900 35007KT P6SM BKN150
TAF
a terminal aerodrome forecast: the weather expected at the airport, usually for the next 24 or 30 hours
KMCW
the station, KMCW
131128Z
issued 11:28 UTC on the 13th
1312/1412 32008KT P6SM OVC020
valid from Tue 12:00 UTC to Wed 12:00 UTC: wind from the northwest at 8 knots, visibility more than 6 miles, overcast at 2,000 feet
FM131900 33006KT P6SM OVC030
from Tue 19:00 UTC: wind from the north-northwest at 6 knots, visibility more than 6 miles, overcast at 3,000 feet
FM132200 31008KT P6SM OVC050
from Tue 22:00 UTC: wind from the northwest at 8 knots, visibility more than 6 miles, overcast at 5,000 feet
FM140900 35007KT P6SM BKN150
from Wed 09:00 UTC: wind from the north at 7 knots, visibility more than 6 miles, a broken layer at 15,000 feet

HPT Hampton, IA

the observation as issued, and in English
METAR KHPT 131155Z AUTO 32004KT 10SM BKN014 11/10 A2989 RMK AO2
METAR
a routine hourly observation
KHPT
the station, KHPT
131155Z
observed 11:55 UTC on the 13th
AUTO
fully automated report, nobody checked it
32004KT
wind from the northwest at 4 knots
10SM
visibility 10 miles
BKN014
a broken layer at 1,400 feet
11/10
temperature 11 °C (52 °F), dew point 10 °C (50 °F)
A2989
altimeter setting 29.89 inches of mercury
RMK
remarks follow
AO2
automated station with a precipitation sensor

ALO Waterloo, IA

the observation and the forecast as issued, and in English
METAR KALO 131154Z 28009KT 10SM OVC018 15/12 A2988 RMK AO2 SLP116 T01500117 10167 20150 53022
METAR
a routine hourly observation
KALO
the station, KALO
131154Z
observed 11:54 UTC on the 13th
28009KT
wind from the west at 9 knots
10SM
visibility 10 miles
OVC018
overcast at 1,800 feet
15/12
temperature 15 °C (59 °F), dew point 12 °C (54 °F)
A2988
altimeter setting 29.88 inches of mercury
RMK
remarks follow
AO2
automated station with a precipitation sensor
SLP116
sea-level pressure 1011.6 hPa
T01500117
temperature 15 °C (59 °F), dew point 11.7 °C (53 °F)
10167
highest temperature in the last six hours 16.7 °C (62 °F)
20150
lowest temperature in the last six hours 15 °C (59 °F)
53022
pressure in the last three hours rising, faster lately, change 2.2 hPa
TAF KALO 131128Z 1312/1412 31006KT P6SM OVC015 FM131600 33006KT P6SM OVC030 FM140000 36007KT P6SM BKN050 PROB30 1402/1406 5SM -SHRA OVC030
TAF
a terminal aerodrome forecast: the weather expected at the airport, usually for the next 24 or 30 hours
KALO
the station, KALO
131128Z
issued 11:28 UTC on the 13th
1312/1412 31006KT P6SM OVC015
valid from Tue 12:00 UTC to Wed 12:00 UTC: wind from the northwest at 6 knots, visibility more than 6 miles, overcast at 1,500 feet
FM131600 33006KT P6SM OVC030
from Tue 16:00 UTC: wind from the north-northwest at 6 knots, visibility more than 6 miles, overcast at 3,000 feet
FM140000 36007KT P6SM BKN050
from Wed 00:00 UTC: wind from the north at 7 knots, visibility more than 6 miles, a broken layer at 5,000 feet
PROB30 1402/1406 5SM -SHRA OVC030
a 30% chance from Wed 02:00 UTC to Wed 06:00 UTC: visibility 5 miles, light rain showers, overcast at 3,000 feet

DBQ Dubuque, IA

the observation and the forecast as issued, and in English
METAR KDBQ 131153Z 31008KT 10SM CLR 14/12 A2984 RMK AO2 SLP101 T01390122 10222 20139 53019 $
METAR
a routine hourly observation
KDBQ
the station, KDBQ
131153Z
observed 11:53 UTC on the 13th
31008KT
wind from the northwest at 8 knots
10SM
visibility 10 miles
CLR
clear skies
14/12
temperature 14 °C (57 °F), dew point 12 °C (54 °F)
A2984
altimeter setting 29.84 inches of mercury
RMK
remarks follow
AO2
automated station with a precipitation sensor
SLP101
sea-level pressure 1010.1 hPa
T01390122
temperature 13.9 °C (57 °F), dew point 12.2 °C (54 °F)
10222
highest temperature in the last six hours 22.2 °C (72 °F)
20139
lowest temperature in the last six hours 13.9 °C (57 °F)
53019
pressure in the last three hours rising, faster lately, change 1.9 hPa
$
the station needs maintenance
TAF KDBQ 131123Z 1312/1412 32007KT P6SM SCT015 FM132300 VRB03KT P6SM FEW200 PROB30 1400/1402 4SM -SHRA BR FM140200 VRB03KT P6SM BKN060 FM140600 VRB04KT P6SM BKN050 BKN100 PROB30 1406/1412 4SM -SHRA BR
TAF
a terminal aerodrome forecast: the weather expected at the airport, usually for the next 24 or 30 hours
KDBQ
the station, KDBQ
131123Z
issued 11:23 UTC on the 13th
1312/1412 32007KT P6SM SCT015
valid from Tue 12:00 UTC to Wed 12:00 UTC: wind from the northwest at 7 knots, visibility more than 6 miles, scattered clouds at 1,500 feet
FM132300 VRB03KT P6SM FEW200
from Tue 23:00 UTC: wind light and variable, visibility more than 6 miles, a few clouds at 20,000 feet
PROB30 1400/1402 4SM -SHRA BR
a 30% chance from Wed 00:00 UTC to Wed 02:00 UTC: visibility 4 miles, light rain showers, mist
FM140200 VRB03KT P6SM BKN060
from Wed 02:00 UTC: wind light and variable, visibility more than 6 miles, a broken layer at 6,000 feet
FM140600 VRB04KT P6SM BKN050 BKN100
from Wed 06:00 UTC: wind light and variable, visibility more than 6 miles, a broken layer at 5,000 feet, a broken layer at 10,000 feet
PROB30 1406/1412 4SM -SHRA BR
a 30% chance from Wed 06:00 UTC to Wed 12:00 UTC: visibility 4 miles, light rain showers, mist

FEP Freeport, IL

the observation as issued, and in English
METAR KFEP 131155Z AUTO 29007KT 10SM CLR 18/16 A2982 RMK AO2 T01760163 10243 20176
METAR
a routine hourly observation
KFEP
the station, KFEP
131155Z
observed 11:55 UTC on the 13th
AUTO
fully automated report, nobody checked it
29007KT
wind from the west-northwest at 7 knots
10SM
visibility 10 miles
CLR
clear skies
18/16
temperature 18 °C (64 °F), dew point 16 °C (61 °F)
A2982
altimeter setting 29.82 inches of mercury
RMK
remarks follow
AO2
automated station with a precipitation sensor
T01760163
temperature 17.6 °C (64 °F), dew point 16.3 °C (61 °F)
10243
highest temperature in the last six hours 24.3 °C (76 °F)
20176
lowest temperature in the last six hours 17.6 °C (64 °F)

RFD Chicago/Rockford, IL

the observation and the forecast as issued, and in English
METAR KRFD 131154Z 24008KT 10SM FEW200 19/16 A2980 RMK AO2 SLP088 T01890161 10244 20189 53022 $
METAR
a routine hourly observation
KRFD
the station, KRFD
131154Z
observed 11:54 UTC on the 13th
24008KT
wind from the west-southwest at 8 knots
10SM
visibility 10 miles
FEW200
a few clouds at 20,000 feet
19/16
temperature 19 °C (66 °F), dew point 16 °C (61 °F)
A2980
altimeter setting 29.80 inches of mercury
RMK
remarks follow
AO2
automated station with a precipitation sensor
SLP088
sea-level pressure 1008.8 hPa
T01890161
temperature 18.9 °C (66 °F), dew point 16.1 °C (61 °F)
10244
highest temperature in the last six hours 24.4 °C (76 °F)
20189
lowest temperature in the last six hours 18.9 °C (66 °F)
53022
pressure in the last three hours rising, faster lately, change 2.2 hPa
$
the station needs maintenance
TAF KRFD 131120Z 1312/1412 29010KT P6SM FEW025 SCT100 FM132300 36005KT P6SM SCT040 BKN090 FM140200 01007KT P6SM VCTS SCT030 OVC040CB TEMPO 1403/1407 3SM -TSRA SCT020 BKN030CB FM140800 03010KT P6SM SCT015 BKN030
TAF
a terminal aerodrome forecast: the weather expected at the airport, usually for the next 24 or 30 hours
KRFD
the station, KRFD
131120Z
issued 11:20 UTC on the 13th
1312/1412 29010KT P6SM FEW025 SCT100
valid from Tue 12:00 UTC to Wed 12:00 UTC: wind from the west-northwest at 10 knots, visibility more than 6 miles, a few clouds at 2,500 feet, scattered clouds at 10,000 feet
FM132300 36005KT P6SM SCT040 BKN090
from Tue 23:00 UTC: wind from the north at 5 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 9,000 feet
FM140200 01007KT P6SM VCTS SCT030 OVC040CB
from Wed 02:00 UTC: wind from the north at 7 knots, visibility more than 6 miles, vcts, scattered clouds at 3,000 feet, overcast at 4,000 feet (thunderheads)
TEMPO 1403/1407 3SM -TSRA SCT020 BKN030CB
at times from Wed 03:00 UTC to Wed 07:00 UTC: visibility 3 miles, light thunderstorms with rain, scattered clouds at 2,000 feet, a broken layer at 3,000 feet (thunderheads)
FM140800 03010KT P6SM SCT015 BKN030
from Wed 08:00 UTC: wind from the north-northeast at 10 knots, visibility more than 6 miles, scattered clouds at 1,500 feet, a broken layer at 3,000 feet

DPA Chicago/West Chicago, IL

the observation and the forecast as issued, and in English
METAR KDPA 131052Z 25009KT 10SM CLR 21/15 A2977 RMK AO2 SLP079 T02110150
METAR
a routine hourly observation
KDPA
the station, KDPA
131052Z
observed 10:52 UTC on the 13th
25009KT
wind from the west-southwest at 9 knots
10SM
visibility 10 miles
CLR
clear skies
21/15
temperature 21 °C (70 °F), dew point 15 °C (59 °F)
A2977
altimeter setting 29.77 inches of mercury
RMK
remarks follow
AO2
automated station with a precipitation sensor
SLP079
sea-level pressure 1007.9 hPa
T02110150
temperature 21.1 °C (70 °F), dew point 15 °C (59 °F)
TAF KDPA 131120Z 1312/1412 26010KT P6SM FEW025 SCT100 FM140000 36005KT P6SM SCT040 BKN090 FM140300 05007KT P6SM VCTS SCT030 OVC040CB TEMPO 1404/1408 3SM -TSRA SCT020 BKN030CB FM140900 03010KT P6SM SCT012 BKN025
TAF
a terminal aerodrome forecast: the weather expected at the airport, usually for the next 24 or 30 hours
KDPA
the station, KDPA
131120Z
issued 11:20 UTC on the 13th
1312/1412 26010KT P6SM FEW025 SCT100
valid from Tue 12:00 UTC to Wed 12:00 UTC: wind from the west at 10 knots, visibility more than 6 miles, a few clouds at 2,500 feet, scattered clouds at 10,000 feet
FM140000 36005KT P6SM SCT040 BKN090
from Wed 00:00 UTC: wind from the north at 5 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 9,000 feet
FM140300 05007KT P6SM VCTS SCT030 OVC040CB
from Wed 03:00 UTC: wind from the northeast at 7 knots, visibility more than 6 miles, vcts, scattered clouds at 3,000 feet, overcast at 4,000 feet (thunderheads)
TEMPO 1404/1408 3SM -TSRA SCT020 BKN030CB
at times from Wed 04:00 UTC to Wed 08:00 UTC: visibility 3 miles, light thunderstorms with rain, scattered clouds at 2,000 feet, a broken layer at 3,000 feet (thunderheads)
FM140900 03010KT P6SM SCT012 BKN025
from Wed 09:00 UTC: wind from the north-northeast at 10 knots, visibility more than 6 miles, scattered clouds at 1,200 feet, a broken layer at 2,500 feet

MDW Chicago, IL

the observation and the forecast as issued, and in English
METAR KMDW 131153Z 24008KT 10SM FEW110 22/15 A2978 RMK AO2 SLP075 T02170150 10250 20217 53011
METAR
a routine hourly observation
KMDW
the station, KMDW
131153Z
observed 6:53 am CDT (11:53 UTC)
24008KT
wind from the west-southwest at 8 knots
10SM
visibility 10 miles
FEW110
a few clouds at 11,000 feet
22/15
temperature 22 °C (72 °F), dew point 15 °C (59 °F)
A2978
altimeter setting 29.78 inches of mercury
RMK
remarks follow
AO2
automated station with a precipitation sensor
SLP075
sea-level pressure 1007.5 hPa
T02170150
temperature 21.7 °C (71 °F), dew point 15 °C (59 °F)
10250
highest temperature in the last six hours 25 °C (77 °F)
20217
lowest temperature in the last six hours 21.7 °C (71 °F)
53011
pressure in the last three hours rising, faster lately, change 1.1 hPa
TAF KMDW 131120Z 1312/1418 26010KT P6SM FEW025 SCT100 FM140100 02006KT P6SM SCT040 BKN090 FM140400 05007KT P6SM VCTS SCT030 OVC040CB TEMPO 1405/1409 3SM -TSRA SCT020 BKN030CB FM141000 03010KT P6SM SCT012 BKN025
TAF
a terminal aerodrome forecast: the weather expected at the airport, usually for the next 24 or 30 hours
KMDW
the station, KMDW
131120Z
issued 6:20 am CDT (11:20 UTC)
1312/1418 26010KT P6SM FEW025 SCT100
valid from Tue 7:00 am CDT (12:00 UTC) to Wed 1:00 pm CDT (18:00 UTC): wind from the west at 10 knots, visibility more than 6 miles, a few clouds at 2,500 feet, scattered clouds at 10,000 feet
FM140100 02006KT P6SM SCT040 BKN090
from Tue 8:00 pm CDT (01:00 UTC): wind from the north-northeast at 6 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 9,000 feet
FM140400 05007KT P6SM VCTS SCT030 OVC040CB
from Tue 11:00 pm CDT (04:00 UTC): wind from the northeast at 7 knots, visibility more than 6 miles, vcts, scattered clouds at 3,000 feet, overcast at 4,000 feet (thunderheads)
TEMPO 1405/1409 3SM -TSRA SCT020 BKN030CB
at times from Wed 12:00 am CDT (05:00 UTC) to Wed 4:00 am CDT (09:00 UTC): visibility 3 miles, light thunderstorms with rain, scattered clouds at 2,000 feet, a broken layer at 3,000 feet (thunderheads)
FM141000 03010KT P6SM SCT012 BKN025
from Wed 5:00 am CDT (10:00 UTC): wind from the north-northeast at 10 knots, visibility more than 6 miles, scattered clouds at 1,200 feet, a broken layer at 2,500 feet

At MDW when you get there the forecast at the estimated arrival, 8:32 am CDT (13:32 UTC)

Wind from the west at 10 knots, visibility more than 6 miles, a few clouds at 2,500 feet, scattered clouds at 10,000 feet VFR

The whole forecast for MDW
  • From Tue 7:00 am CDT (12:00 UTC): wind from the west at 10 knots, visibility more than 6 miles, a few clouds at 2,500 feet, scattered clouds at 10,000 feet
  • From Tue 8:00 pm CDT (01:00 UTC): wind from the north-northeast at 6 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 9,000 feet
  • From Tue 11:00 pm CDT (04:00 UTC): wind from the northeast at 7 knots, visibility more than 6 miles, thunderstorms nearby, scattered clouds at 3,000 feet, overcast at 4,000 feet (thunderheads)
  • At times between Wed 12:00 am CDT (05:00 UTC) and 4:00 am CDT (09:00 UTC): visibility 3 miles, light thunderstorms with rain, scattered clouds at 2,000 feet, a broken layer at 3,000 feet (thunderheads)
  • From Wed 5:00 am CDT (10:00 UTC): wind from the north-northeast at 10 knots, visibility more than 6 miles, scattered clouds at 1,200 feet, a broken layer at 2,500 feet

MDW:

the forecast as issued, and in English
TAF KMDW 131120Z 1312/1418 26010KT P6SM FEW025 SCT100 FM140100 02006KT P6SM SCT040 BKN090 FM140400 05007KT P6SM VCTS SCT030 OVC040CB TEMPO 1405/1409 3SM -TSRA SCT020 BKN030CB FM141000 03010KT P6SM SCT012 BKN025
TAF
a terminal aerodrome forecast: the weather expected at the airport, usually for the next 24 or 30 hours
KMDW
the station, KMDW
131120Z
issued 6:20 am CDT (11:20 UTC)
1312/1418 26010KT P6SM FEW025 SCT100
valid from Tue 7:00 am CDT (12:00 UTC) to Wed 1:00 pm CDT (18:00 UTC): wind from the west at 10 knots, visibility more than 6 miles, a few clouds at 2,500 feet, scattered clouds at 10,000 feet
FM140100 02006KT P6SM SCT040 BKN090
from Tue 8:00 pm CDT (01:00 UTC): wind from the north-northeast at 6 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 9,000 feet
FM140400 05007KT P6SM VCTS SCT030 OVC040CB
from Tue 11:00 pm CDT (04:00 UTC): wind from the northeast at 7 knots, visibility more than 6 miles, vcts, scattered clouds at 3,000 feet, overcast at 4,000 feet (thunderheads)
TEMPO 1405/1409 3SM -TSRA SCT020 BKN030CB
at times from Wed 12:00 am CDT (05:00 UTC) to Wed 4:00 am CDT (09:00 UTC): visibility 3 miles, light thunderstorms with rain, scattered clouds at 2,000 feet, a broken layer at 3,000 feet (thunderheads)
FM141000 03010KT P6SM SCT012 BKN025
from Wed 5:00 am CDT (10:00 UTC): wind from the north-northeast at 10 knots, visibility more than 6 miles, scattered clouds at 1,200 feet, a broken layer at 2,500 feet

Temporary flight restrictions on the line or within 25 nm of it

No temporary flight restriction on or near this route right now.

Notices to air missions closures and things out of service at both ends; airspace, navigation aids and obstructions near the line

AXA: 1 notice in force. all of them, grouped →

MDW: 49 notices in force. runway 04L/22R closed all of them, grouped →

  • closed Runway 04L/22R closed until Tue 13 Oct, 10:30 am CDT (15:30 UTC) · MDW 10/127
    as issued
    !MDW 10/127 MDW RWY 04L/22R CLSD 2610131131-2610131530
  • closed Taxiway U closed until Fri 27 Nov, 9:00 am CST (15:00 UTC) · MDW 10/085
    as issued
    !MDW 10/085 MDW TWY U CLSD 2610090143-2611271500
  • closed Taxiway Y3 closed until Mon 30 Nov, 6:00 am CST (12:00 UTC) · MDW 10/076
    as issued
    !MDW 10/076 MDW TWY Y3 CLSD 2610080943-2611301200
  • closed Apron Y PAD closed until Thu 15 Oct, 6:00 am CDT (11:00 UTC) · MDW 08/339
    as issued
    !MDW 08/339 MDW APRON Y PAD CLSD 2608241100-2610151100

68 notices near the line, the first 30 (airspace and special activity within 25 nm, navigation aids within 25 nm, obstructions within 5 nm):

  • Obstruction tower lights (ASR 1048371) 43°06′N 93°31′W (8.5 nautical miles SSE FXY) 1462.9FT (214.9FT above ground level) out of service until Thu 19 Nov, 6:31 am CST (12:31 UTC) · 30 nm along the route, 10 nm off the line · FXY 10/053
    as issued
    !FOD 10/053 FXY OBST TOWER LGT (ASR 1048371) 430647.00N0933123.00W (8.5NM SSE FXY) 1462.9FT (214.9FT AGL) U/S 2610051231-2611191231
  • Obstruction tower lights (ASR 1227730) 42°41′N 92°29′W (2.7 nautical miles SSE C25) 1215.9FT (234.9FT above ground level) out of service until Tue 2 Feb, 1:10 am CST (07:10 UTC) · 80 nm along the route, 4 nm off the line · C25 10/052
    as issued
    !FOD 10/052 C25 OBST TOWER LGT (ASR 1227730) 424159.00N0922913.70W (2.7NM SSE C25) 1215.9FT (234.9FT AGL) U/S 2610050710-2702020710
  • Obstruction tower lights (ASR 1041353) 42°50′N 92°06′W (11.0 nautical miles NNW OLZ) 1391.1FT (345.1FT above ground level) out of service until Sun 6 Dec, 3:46 am CST (09:46 UTC) · 100 nm along the route, 9 nm off the line · OLZ 10/002
    as issued
    !OLZ 10/002 OLZ OBST TOWER LGT (ASR 1041353) 425013.00N0920618.00W (11.0NM NNW OLZ) 1391.1FT (345.1FT AGL) U/S 2610060946-2612060946
  • Obstruction tower lights (ASR 1239394) 42°41′N 91°54′W (2.7 nautical miles ENE OLZ) 1363.2FT (265.1FT above ground level) out of service until Tue 1 Dec, 5:59 pm CST (23:59 UTC) · 110 nm along the route, 4 nm off the line · OLZ 10/001
    as issued
    !OLZ 10/001 OLZ OBST TOWER LGT (ASR 1239394) 424136.30N0915458.40W (2.7NM ENE OLZ) 1363.2FT (265.1FT AGL) U/S 2610011118-2612012359
  • Obstruction tower lights (ASR 1273575) 42°36′N 91°39′W (9.7 nautical miles northwest C27) 1336.0FT (259.8FT above ground level) out of service until Tue 8 Dec, 1:15 pm CST (19:15 UTC) · 120 nm along the route, 1 nm off the line · C27 10/084
    as issued
    !FOD 10/084 C27 OBST TOWER LGT (ASR 1273575) 423604.60N0913924.90W (9.7NM NW C27) 1336.0FT (259.8FT AGL) U/S 2610081921-2612081915
  • Obstruction tower lights (ASR 1224522) 42°41′N 91°32′W (11.8 nautical miles southwest I27) 1532.8FT (344.8FT above ground level) out of service until Fri 4 Dec, 5:59 pm CST (23:59 UTC) · 120 nm along the route, 6 nm off the line · I27 10/031
    as issued
    !FOD 10/031 I27 OBST TOWER LGT (ASR 1224522) 424111.90N0913215.50W (11.8NM SW I27) 1532.8FT (344.8FT AGL) U/S 2610021821-2612042359
  • Obstruction tower lights (ASR 1225767) 42°27′N 91°34′W (4.2 nautical miles WSW C27) 1361.9FT (304.8FT above ground level) out of service until Tue 19 Jan, 7:32 pm CST (01:32 UTC) · 120 nm along the route, 9 nm off the line · C27 09/216
    as issued
    !FOD 09/216 C27 OBST TOWER LGT (ASR 1225767) 422726.20N0913449.70W (4.2NM WSW C27) 1361.9FT (304.8FT AGL) U/S 2609220132-2701200132
  • Obstruction tower lights (ASR 1017868) 42°25′N 90°59′W (9.6 nautical miles ESE IA8) 1473.1FT (393.0FT above ground level) out of service until Fri 27 Nov, 5:59 pm CST (23:59 UTC) · 150 nm along the route, 3 nm off the line · IA8 09/240
    as issued
    !FOD 09/240 IA8 OBST TOWER LGT (ASR 1017868) 422527.00N0905911.00W (9.6NM ESE IA8) 1473.1FT (393.0FT AGL) U/S 2609251638-2611272359
  • Navigation aid TACAN out of service until Wed 14 Oct, 3:00 pm CDT (20:00 UTC), estimated · 159 nm along the route, 3 nm off the line · DBQ 10/013
    as issued
    !DBQ 10/013 DBQ NAV TACAN U/S 2610060839-2610142000EST
  • Navigation aid localizer runway 36 out of service until Fri 27 Nov, 2:00 pm CST (20:00 UTC), estimated · 159 nm along the route, 3 nm off the line · DBQ 10/012
    as issued
    !DBQ 10/012 DBQ NAV LOC RWY 36 U/S 2610060603-2611272000EST
  • Obstruction tower lights (ASR 1035213) 42°31′N 90°36′W (8.4 nautical miles NNE DBQ) 1153.9FT (253.9FT above ground level) out of service until Thu 5 Nov, 5:59 pm CST (23:59 UTC) · 159 nm along the route, 8 nm off the line · DBQ 10/011
    as issued
    !DBQ 10/011 DBQ OBST TOWER LGT (ASR 1035213) 423125.00N0903657.00W (8.4NM NNE DBQ) 1153.9FT (253.9FT AGL) U/S 2610060142-2611052359
  • Obstruction tower lights (ASR 1017691) 42°30′N 90°38′W (6.8 nautical miles NNE DBQ) 987.9FT (217.8FT above ground level) out of service until Fri 1 Jan, 5:59 pm CST (23:59 UTC) · 159 nm along the route, 7 nm off the line · DBQ 10/003
    as issued
    !DBQ 10/003 DBQ OBST TOWER LGT (ASR 1017691) 423012.00N0903832.00W (6.8NM NNE DBQ) 987.9FT (217.8FT AGL) U/S 2610011415-2701012359
  • Navigation aid VOR ground receive Checkpoint out of service until Tue 29 Dec, 5:59 pm CST (23:59 UTC) · 159 nm along the route, 3 nm off the line · DBQ 09/058
    as issued
    !DBQ 09/058 DBQ NAV VOR GND REC CHECKPOINT U/S 2609292042-2612292359
  • Obstruction tower lights (ASR 1023679) 42°28′N 90°49′W (6.8 nautical miles northwest DBQ) 1431.8FT (258.9FT above ground level) out of service until Wed 4 Nov, 11:00 am CST (17:00 UTC) · 159 nm along the route, 4 nm off the line · DBQ 09/044
    as issued
    !DBQ 09/044 DBQ OBST TOWER LGT (ASR 1023679) 422839.40N0904923.00W (6.8NM NW DBQ) 1431.8FT (258.9FT AGL) U/S 2609221858-2611041700
  • Obstruction tower lights (ASR 1239613) 42°20′N 90°17′W (18.6 nautical miles ESE DBQ) 1267.1FT (259.8FT above ground level) out of service until Sun 25 Oct, 6:59 pm CDT (23:59 UTC) · 179 nm along the route, 1 nm off the line · DBQ 08/039
    as issued
    !DBQ 08/039 DBQ OBST TOWER LGT (ASR 1239613) 422017.50N0901754.40W (18.6NM ESE DBQ) 1267.1FT (259.8FT AGL) U/S 2608251614-2610252359
  • Obstruction tower lights (ASN 2024-above ground level-13510-OE) 42°24′N 90°10′W (20.2 nautical miles southeast PVB) 1,131 ft (265 ft above ground level) out of service until Fri 6 Nov, 5:00 pm CST (23:00 UTC) · 189 nm along the route, 7 nm off the line · PVB 10/089
    as issued
    !GRB 10/089 PVB OBST TOWER LGT (ASN 2024-AGL-13510-OE) 422458N0901039W (20.2NM SE PVB) 1131FT (265FT AGL) U/S 2610061225-2611062300
  • Obstruction tower lights (ASR 1008923) 42°18′N 89°56′W (16.7 nautical miles west FEP) 1,561 ft (516 ft above ground level) out of service until Thu 19 Nov, 4:22 pm CST (22:22 UTC), estimated · 199 nm along the route, 4 nm off the line · FEP 10/001
    as issued
    !FEP 10/001 FEP OBST TOWER LGT (ASR 1008923) 421822.50N0895649.70W (16.7NM W FEP) 1561FT (516FT AGL) U/S 2610051622-2611192222EST
  • Obstruction tower lights (ASR 1031428) 42°23′N 89°46′W (11.9 nautical miles northwest FEP) 1209.6FT (267.7FT above ground level) out of service until Sun 22 Nov, 3:07 pm CST (21:07 UTC) · 199 nm along the route, 9 nm off the line · FEP 08/016
    as issued
    !FEP 08/016 FEP OBST TOWER LGT (ASR 1031428) 422301.10N0894637.40W (11.9NM NW FEP) 1209.6FT (267.7FT AGL) U/S 2608242007-2611222107
  • Obstruction tower lights (ASR 1225726) 42°13′N 89°39′W (3.6 nautical miles WSW FEP) 1126.0FT (259.8FT above ground level) out of service until Thu 5 Nov, 5:59 pm CST (23:59 UTC) · 209 nm along the route, 1 nm off the line · FEP 09/004
    as issued
    !FEP 09/004 FEP OBST TOWER LGT (ASR 1225726) 421355.50N0893938.80W (3.6NM WSW FEP) 1126.0FT (259.8FT AGL) U/S 2609051939-2611052359
  • Obstruction tower lights (ASR 1241997) 42°13′N 89°29′W (4.5 nautical miles ESE FEP) 1140.7FT (259.8FT above ground level) out of service until Mon 7 Dec, 5:59 pm CST (23:59 UTC) · 219 nm along the route, 4 nm off the line · FEP 10/002
    as issued
    !FEP 10/002 FEP OBST TOWER LGT (ASR 1241997) 421346.00N0892902.80W (4.5NM ESE FEP) 1140.7FT (259.8FT AGL) U/S 2610071613-2612072359
  • Navigation aid ILS runway 25 LOC/DME out of service until Thu 5 Nov, 2:00 pm CST (20:00 UTC), estimated · 219 nm along the route, 27 nm off the line · SQI 09/015
    as issued
    !SQI 09/015 SQI NAV ILS RWY 25 LOC/DME U/S 2609301109-2611052000EST
  • Obstruction tower lights (ASR 1044986) 42°16′N 89°19′W (8.8 nautical miles west 1C8) 1315.0FT (399.9FT above ground level) out of service until Fri 23 Oct, 6:59 pm CDT (23:59 UTC) · 219 nm along the route, 9 nm off the line · 1C8 09/231
    as issued
    !IKK 09/231 1C8 OBST TOWER LGT (ASR 1044986) 421648.40N0891958.90W (8.8NM W 1C8) 1315.0FT (399.9FT AGL) U/S 2609220259-2610232359
  • Obstruction tower lights (ASR 1228871) 42°16′N 89°25′W (7.1 nautical miles ENE FEP) 1082.7FT (309.7FT above ground level) out of service until Sat 31 Oct, 1:26 am CDT (06:26 UTC) · 219 nm along the route, 7 nm off the line · FEP 08/001
    as issued
    !FEP 08/001 FEP OBST TOWER LGT (ASR 1228871) 421652.60N0892542.10W (7.1NM ENE FEP) 1082.7FT (309.7FT AGL) U/S 2608020626-2610310626
  • Obstruction tower lights (ASR 1208200) 42°17′N 89°22′W (10.0 nautical miles ENE FEP) 1118.8FT (259.8FT above ground level) out of service until Thu 22 Oct, 11:00 pm CDT (04:00 UTC) · 219 nm along the route, 9 nm off the line · FEP 07/014
    as issued
    !FEP 07/014 FEP OBST TOWER LGT (ASR 1208200) 421754.70N0892209.20W (10.0NM ENE FEP) 1118.8FT (259.8FT AGL) U/S 2607241110-2610230400
  • Obstruction wind Turbine Farm within an area defined as 7 nautical miles radius of 40°43′N 87°01′W (11.4 nautical miles west MCX) 1,299 ft (492 ft above ground level) lights out of service until Thu 5 Nov, 5:59 pm CST (23:59 UTC) · 229 nm along the route, 4 nm off the line · ZAU 10/034
    as issued
    !IKK 10/034 ZAU OBST WIND TURBINE FARM WI AN AREA DEFINED AS 7NM RADIUS OF 404346N0870137W (11.4NM W MCX) 1299FT (492FT AGL) LGT U/S 2610031934-2611052359
  • Obstruction tower lights (ASR 1325704) 41°12′N 86°53′W (12.5 nautical miles southwest OXI) 984 ft (305 ft above ground level) out of service until Sun 27 Dec, 5:59 pm CST (23:59 UTC) · 229 nm along the route, 4 nm off the line · ZAU 09/319
    as issued
    !IKK 09/319 ZAU OBST TOWER LGT (ASR 1325704) 411253.50N0865322.60W (12.5NM SW OXI) 984FT (305FT AGL) U/S 2609280645-2612272359
  • Obstruction tower lights (ASR 1245471) 41°59′N 89°12′W (8.3 nautical miles northwest RPJ) 1499.0FT (684.1FT above ground level) out of service until Fri 25 Dec, 5:59 pm CST (23:59 UTC) · 229 nm along the route, 8 nm off the line · RPJ 09/005
    as issued
    !RPJ 09/005 RPJ OBST TOWER LGT (ASR 1245471) 415946.00N0891211.00W (8.3NM NW RPJ) 1499.0FT (684.1FT AGL) U/S 2609252034-2612252359
  • Obstruction wind Turbine Farm within an area defined as 10 nautical miles radius of 40°37′N 86°56′W (9.8 nautical miles southwest MCX) 1,141 ft (397 ft above ground level) lights out of service until Fri 16 Oct, 6:59 pm CDT (23:59 UTC) · 229 nm along the route, 4 nm off the line · ZAU 09/235
    as issued
    !IKK 09/235 ZAU OBST WIND TURBINE FARM WI AN AREA DEFINED AS 10NM RADIUS OF 403737N0865603W (9.8NM SW MCX) 1141FT (397FT AGL) LGT U/S 2609221138-2610162359
  • Obstruction wind Turbine Farm within an area defined as 7 nautical miles radius of 40°41′N 87°08′W (14.2 nautical miles ESE 50I) 2,820 ft (410 ft above ground level) lights out of service until Fri 16 Oct, 6:59 pm CDT (23:59 UTC) · 229 nm along the route, 4 nm off the line · ZAU 09/234
    as issued
    !IKK 09/234 ZAU OBST WIND TURBINE FARM WI AN AREA DEFINED AS 7NM RADIUS OF 404142N0870850W (14.2NM ESE 50I) 2820FT (410FT AGL) LGT U/S 2609221133-2610162359
  • Obstruction wind Turbine Farm within an area defined as 6 nautical miles radius of 40°40′N 87°02′W (12.6 nautical miles WSW MCX) 1,169 ft (404 ft above ground level) lights out of service until Fri 16 Oct, 6:59 pm CDT (23:59 UTC) · 229 nm along the route, 4 nm off the line · ZAU 09/233
    as issued
    !IKK 09/233 ZAU OBST WIND TURBINE FARM WI AN AREA DEFINED AS 6NM RADIUS OF 404036N0870202W (12.6NM WSW MCX) 1169FT (404FT AGL) LGT U/S 2609221132-2610162359

From the FAA's notice service (NOTAMs), the site's copy refreshed every few minutes; last checked 2 minutes ago. The FAA has so far issued eFlight its test feed, which misses some notices (checked against the FAA's own search on 12 October: about a third missing at Santa Barbara and Burbank, none at Atlanta or Las Vegas); the request for the full feed is with the FAA. Times are local to the field. This is for planning; the legal briefing comes from Flight Service or the FAA's own tools.

Daylight

Sunset at AXA 6:37 pm CDT (23:37 UTC), at MDW 6:13 pm CDT (23:13 UTC) (civil twilight ends 6:41 pm CDT (23:41 UTC)).

Each restriction opens the FAA's own page with the exact area, heights and times.

The wind over the route live wind map, from Windy.com · drag the time bar for the coming hours; the level menu changes the height

Colours show wind speed, the moving lines its direction, at the surface unless you pick a height. Map and forecast by Windy.com; a second opinion beside the government's winds-aloft table above.

Radar and forecast charts for the regions crossed government pictures, the latest each time the page loads · the turbulence and icing forecasts: turbulence ↗ · icing ↗

Radar now, the upper Mississippi valley
Radar now, the upper Mississippi valley · loop National Weather Service
Aviation forecast, clouds and visibility, the north-central states, 3 hours ahead
Aviation forecast, clouds and visibility, the north-central states, 3 hours ahead · on the government's site ↗ Aviation Weather Center (NOAA) · cloud cover and bases, visibility, and the areas of low cloud or poor visibility
Aviation forecast, surface weather, the north-central states, 3 hours ahead
Aviation forecast, surface weather, the north-central states, 3 hours ahead · on the government's site ↗ Aviation Weather Center (NOAA) · surface winds, weather, thunderstorms, and the AIRMET boxes for turbulence, icing and strong winds
Radar, the whole country
Radar, the whole country · loop National Weather Service
Surface analysis now
Surface analysis now Weather Prediction Center
Forecast chart, 12 hours ahead
Forecast chart, 12 hours ahead Weather Prediction Center
Forecast chart, 24 hours ahead
Forecast chart, 24 hours ahead Weather Prediction Center

Sources: the Aviation Weather Center's data service (SIGMETs, AIRMETs, graphical AIRMETs, pilot reports, winds and temperatures aloft, observations and terminal forecasts), the National Weather Service radar, the Weather Prediction Center's charts, the FAA's temporary flight restriction list and shapes, and the FAA's airport file for the positions, elevations and magnetic variation. Fetched when the page is viewed and kept a few minutes. Each leg is the straight line between its two airports; airways, terrain and airspace are not considered. The airports in detail: Algona Municipal, Chicago Midway International.