Plan a flight · Mon 8:07 am MDT (14:07 UTC)

Jackson Hole Airport to Chicago Midway International JAC → MDW

1,017 nautical miles (1,170 statute miles) east on a straight line, true course 088°, about 075° magnetic at the departure end (variation 13E). At 120 knots that is 5 h 59 min at the quickest height in today's winds (39,000 ft, a 50-knot tailwind), arriving about 3:06 pm CDT (20:06 UTC). Right now JAC is VFR, wind from the north-northeast (020°) at 7 knots; MDW is VFR, wind from the southwest (220°) at 9 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: 4 flights in the DOT's last twelve reported months, the route's page.

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

AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 588 nm of the route.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the first 130 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 160 nm of the route.

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 JAC.

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

UAL1095 at 36,000 ft, 5 nm east, 7:34 am MDT (13:34 UTC): light turbulence, -38 °C, wind 236° at 61 knots. 359 nm along the route, 5 nm east of the line.
as filed, and in English
```
ARP UAL1095 4328N 10223W 1334 F360 MS38 236/061KT TB LIGHT SK IC
```
Report
a routine report filed through ARP
UAL1095 at 36,000 ft, 34 nm north, 7:00 am MDT (13:00 UTC): no turbulence, -41 °C, wind 253° at 52 knots. 608 nm along the route, 34 nm north of the line.
as filed, and in English
```
ARP UAL1095 4338N 09646W 1300 F360 MS41 253/052KT TB NONE SK CLEAR IC
```
Report
a routine report filed through ARP
B38M at 32,000 ft, 5 nm northwest, 5:45 am MDT (11:45 UTC): light chop turbulence. 668 nm along the route, 5 nm northwest of the line.
as filed, and in English
```
FOD UA /OV FOD285060/TM 1145/FL320/TP B38M/TB CONS LGT CHOP OCNL MOD CHOP
```
Report
a routine report filed through FOD
Where
60 nm west (285°) of FOD
Time
11:45 UTC
Height
at 32,000 ft
Aircraft
B38M
Turbulence
continuous light chop occasional moderate chop
BE36 at 6,000 ft, 50 nm north, 7:12 am MDT (13:12 UTC): no turbulence. 708 nm along the route, 50 nm north of the line.
as filed, and in English
```
FRM UA /OV FRM/TM 1312/FL060/TP BE36/TB NEG
```
Report
a routine report filed through FRM
Where
over FRM
Time
13:12 UTC
Height
at 6,000 ft
Aircraft
BE36
Turbulence
none
B38M at 32,000 ft, 2 nm west, 5:35 am MDT (11:35 UTC): light chop turbulence above 32,000 ft. 758 nm along the route, 2 nm west of the line.
as filed, and in English
```
FOD UA /OV FOD075035/TM 1135/FL320/TP B38M/TB CONS LGT CHOP 320/INTMT LGT CHOP 340
```
Report
a routine report filed through FOD
Where
35 nm east (075°) of FOD
Time
11:35 UTC
Height
at 32,000 ft
Aircraft
B38M
Turbulence
continuous light chop 320/INTMT light chop at 34,000 ft
P46T at 31,000 ft, 3 nm east, 7:37 am MDT (13:37 UTC): light chop turbulence. 798 nm along the route, 3 nm east of the line.
as filed, and in English
```
ALO UA /OV ALO270005/TM 1337/FL310/TP P46T/TB INTMT LGT CHOP
```
Report
a routine report filed through ALO
Where
5 nm west (270°) of ALO
Time
13:37 UTC
Height
at 31,000 ft
Aircraft
P46T
Turbulence
intermittent light chop
A321 at 32,000 ft, 23 nm south, 6:25 am MDT (12:25 UTC): light chop turbulence. 837 nm along the route, 23 nm south of the line.
as filed, and in English
```
CID UA /OV CID360010/TM 1225/FL320/TP A321/TB INTMT LGT CHOP CONS LGT CHOP
```
Report
a routine report filed through CID
Where
10 nm north (360°) of CID
Time
12:25 UTC
Height
at 32,000 ft
Aircraft
A321
Turbulence
intermittent light chop continuous light chop
B752 at 34,000 ft, 15 nm northeast, 6:23 am MDT (12:23 UTC): light chop turbulence. 857 nm along the route, 15 nm northeast of the line.
as filed, and in English
```
DBQ UA /OV DBQ300020/TM 1223/FL340/TP B752/TB OCNL LGT CHOP
```
Report
a routine report filed through DBQ
Where
20 nm northwest (300°) of DBQ
Time
12:23 UTC
Height
at 34,000 ft
Aircraft
B752
Turbulence
occasional light chop
B39M at 36,000 ft, 24 nm north, 7:18 am MDT (13:18 UTC): no turbulence. At the destination end, 24 nm north of the line.
as filed, and in English
```
PWK UA /OV OBK/TM 1318/FL360/TP B39M/TB NEG
```
Report
a routine report filed through PWK
Where
over OBK
Time
13:18 UTC
Height
at 36,000 ft
Aircraft
B39M
Turbulence
none

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 8 forecast points nearest it (LND, RAP, PIR, ONL, FSD, MCW, DBQ, JOT). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
5,500 ft	250° at 24 kt	−20 kt	17 °C	140 kt	7 h 16 min	4:23 pm CDT (21:23 UTC)
7,500 ft	240° at 21 kt	−18 kt	12 °C	138 kt	7 h 22 min	4:29 pm CDT (21:29 UTC)
9,500 ft	240° at 23 kt	−18 kt	9 °C	138 kt	7 h 22 min	4:29 pm CDT (21:29 UTC)
11,500 ft	240° at 26 kt	−22 kt	5 °C	142 kt	7 h 10 min	4:17 pm CDT (21:17 UTC)
13,500 ft	240° at 27 kt	−22 kt	1 °C	142 kt	7 h 10 min	4:17 pm CDT (21:17 UTC)
15,500 ft	240° at 27 kt	−21 kt	-4 °C	141 kt	7 h 13 min	4:20 pm CDT (21:20 UTC)
17,500 ft	230° at 28 kt	−21 kt	-9 °C	141 kt	7 h 13 min	4:20 pm CDT (21:20 UTC)
18,000 ft FL180	230° at 28 kt	−21 kt	-10 °C	141 kt	7 h 13 min	4:20 pm CDT (21:20 UTC)
24,000 ft FL240	230° at 36 kt	−27 kt	-22 °C	147 kt	6 h 55 min	4:02 pm CDT (21:02 UTC)
30,000 ft FL300	240° at 40 kt	−35 kt	-34 °C	155 kt	6 h 34 min	3:41 pm CDT (20:41 UTC)
34,000 ft FL340	250° at 45 kt	−42 kt	-38 °C	162 kt	6 h 17 min	3:24 pm CDT (20:24 UTC)
39,000 ft FL390	260° at 51 kt	−50 kt	-47 °C	170 kt	5 h 59 min	3:06 pm CDT (20:06 UTC)

Based on data from the 12th at 06:00 UTC; valid on the 12th 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

Point	From	3,000	6,000	9,000	12,000	18,000	24,000	30,000	34,000	39,000
LND	used from 0 nm out; 79 nm from the line			240/10 3°	240/30 0°	220/42 -13°	230/52 -23°	220/54 -33°	220/52 -36°	220/53 -44°
RAP	used from 199 nm out; 112 nm from the line		250/28 16°	260/31 10°	240/25 4°	210/35 -10°	200/45 -23°	230/47 -31°	230/47 -36°	230/51 -46°
PIR	used from 399 nm out; 66 nm from the line		230/15 15°	220/22 14°	220/24 6°	200/32 -10°	210/48 -22°	240/45 -33°	240/43 -37°	250/55 -46°
ONL	used from 498 nm out; 47 nm from the line		250/31 22°	230/27 16°	220/25 8°	230/25 -9°	220/29 -22°	250/42 -33°	250/48 -36°	250/52 -46°
FSD	used from 548 nm out; 46 nm from the line	210/20	230/23 21°	220/25 14°	230/30 5°	230/26 -9°	240/30 -21°	270/33 -36°	260/47 -37°	270/58 -47°
MCW	used from 698 nm out; 46 nm from the line	250/36	250/24 19°	240/26 11°	250/30 5°	270/22 -9°	260/30 -21°	260/31 -36°	280/53 -38°	280/66 -48°
DBQ	used from 798 nm out; 58 nm from the line	250/27	260/23 17°	240/26 10°	260/30 4°	280/26 -9°	280/36 -21°	270/41 -36°	280/52 -41°	290/67 -48°
JOT	used from 947 nm out; 36 nm from the line	250/25	260/22 14°	250/17 9°	270/21 5°	280/28 -8°	280/36 -20°	270/41 -35°	280/57 -42°	290/65 -50°

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

Airport	Where	Conditions	Wind	Visibility	Ceiling	Elevation	Reported
JAC Jackson, WY	departure	VFR Sky: overcast at 5,000 feet	from the north-northeast (020°) at 7 knots	10+ mi	5,000 ft	6,451 ft	7:56 am MDT (13:56 UTC)
HSG Thermopolis, WY	100 nm out, 5 nm northeast of the line	marginal VFR Sky: a broken layer at 1,200 feet, overcast at 1,900 feet	from the north (010°) at 3 knots	10+ mi	1,200 ft	4,891 ft	13:55 UTC
WRL Worland, WY	120 nm out, 20 nm north of the line	marginal VFR Sky: overcast at 1,100 feet	from the north (350°) at 3 knots	8 mi	1,100 ft	4,251 ft	13:53 UTC
ECS Newcastle, WY	279 nm out, 19 nm north of the line	low IFR Sky: overcast at 200 feet Weather: mist	calm	2.5 mi	200 ft	4,177 ft	13:55 UTC
HSR Hot Springs, SD	319 nm out, 10 nm south of the line	no report just now				3,150 ft
ICR Winner, SD	479 nm out, 5 nm northwest of the line	low IFR Sky: overcast at 200 feet Weather: light rain, mist	from the north (350°) at 8 knots	2 mi	200 ft	2,032 ft	14:02 UTC
AGZ Wagner, SD	548 nm out, 10 nm southwest of the line	low IFR Sky: overcast at 300 feet Weather: mist	from the northwest (320°) at 9 knots	1.25 mi	300 ft	1,477 ft	13:55 UTC
SXK Maurice, IA	638 nm out, 1 nm southwest of the line	VFR	from the south-southeast (160°) at 7 knots	9 mi	none	1,408 ft	13:55 UTC
ALO Waterloo, IA	808 nm out, 3 nm northwest of the line, tower	VFR	from the south (170°) at 4 knots	10+ mi	none	873 ft	13:54 UTC
DBQ Dubuque, IA	877 nm out, 7 nm northeast of the line, tower	VFR	from the south-southwest (200°) at 11 knots	10+ mi	none	1,076 ft	13:53 UTC
DPA Chicago/West Chicago, IL	997 nm out, 4 nm northwest of the line, tower	VFR	from the south-southwest (200°) at 7 knots	10+ mi	none	758 ft	13:52 UTC
MDW Chicago, IL	destination	VFR Sky: a few clouds at 20,000 feet, a few clouds at 25,000 feet	from the southwest (220°) at 9 knots	10+ mi	none	619 ft	8:53 am CDT (13:53 UTC)

The highest airport on this list sits at 6,451 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At MDW when you get there the forecast at the estimated arrival, 3:06 pm CDT (20:06 UTC)

Wind from the south-southwest at 13 knots, gusting to 24, visibility more than 6 miles, a few clouds at 25,000 feet VFR

The whole forecast for MDW

From Mon 7:00 am CDT (12:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, a broken layer at 25,000 feet
From Mon 12:00 pm CDT (17:00 UTC): wind from the south-southwest at 13 knots, gusting to 24, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 6:00 pm CDT (23:00 UTC): wind from the south-southwest at 12 knots, visibility more than 6 miles, a few clouds at 12,000 feet
From Mon 10:00 pm CDT (03:00 UTC): wind from the southwest at 11 knots, visibility more than 6 miles, low-level wind shear, a few clouds at 10,000 feet
From Tue 5:00 am CDT (10:00 UTC): wind from the west at 10 knots, visibility more than 6 miles, a few clouds at 20,000 feet

The forecast for JAC, the departure

From Mon 7:00 am MDT (13:00 UTC): wind from the north-northeast at 5 knots, visibility more than 6 miles, showers nearby, scattered clouds at 2,000 feet, overcast at 6,000 feet
From Mon 3:00 pm MDT (21:00 UTC): wind from the southwest at 7 knots, visibility more than 6 miles, scattered clouds at 3,000 feet, overcast at 4,000 feet
30% chance between Mon 3:00 pm MDT (21:00 UTC) and 9:00 pm MDT (03:00 UTC): visibility 5 miles, light rain showers, a broken layer at 4,000 feet
From Mon 9:00 pm MDT (03:00 UTC): wind from the north-northeast at 4 knots, visibility 6 miles, light rain showers, scattered clouds at 2,000 feet, overcast at 3,500 feet
From Tue 3:00 am MDT (09:00 UTC): wind from the north-northeast at 5 knots, visibility more than 6 miles, showers nearby, a broken layer at 5,000 feet

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

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

Daylight

Sunset at JAC 6:43 pm MDT (00:43 UTC), at MDW 6:14 pm CDT (23:14 UTC) (civil twilight ends 6:42 pm CDT (23:42 UTC)).

Each restriction opens the FAA's own page with the exact area, heights and times. Ordinary notices to air missions (closed runways, lights out) are not shown: the FAA's notice search is not open to sites like this one at this time.

Radar and forecast charts for the regions crossed government pictures, the latest each time the page loads

Radar now, the northern Rockies · loop National Weather Service

Radar now, the upper Mississippi valley · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

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: Jackson Hole Airport, Chicago Midway International.