Plan a flight · Tue 8:36 am CDT (13:36 UTC)

St. Louis Lambert International to Brown Field Municipal STL → SDM

1,345 nautical miles (1,547 statute miles) west on a straight line, true course 262°, about 263° magnetic at the departure end (variation 1W). At 120 knots that is 13 h 27 min at the quickest height in today's winds (6,500 ft, a 20-knot headwind), arriving about 8:03 pm PDT (03:03 UTC), after sunset at the destination. Right now STL is VFR, wind from the southwest (220°) 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 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 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), from 7:00 am CDT (12:00 UTC). Over the first 747 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft, from 7:00 am CDT (12:00 UTC). Over the route from 677 to 1086 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist), from 7:00 am CDT (12:00 UTC). Over the route from 827 to 1116 nm out.
AIRMET TANGO 3W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground), from 7:00 am CDT (12:00 UTC). Over the route from 906 to 1046 nm out.
AIRMET SIERRA 8E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist), from 7:00 am CDT (12:00 UTC). Over the route from 986 to 1116 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 24,000 ft to 36,000 ft, from 7:00 am CDT (12:00 UTC). Over the route from 1006 to 1255 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft, from 7:00 am CDT (12:00 UTC). Over the last 80 nm of the route.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 10,000 ft, from 7:00 am CDT (12:00 UTC). Over the route from 1265 to 1325 nm out.

Turbulence AIRMET in force: moderate turbulence (due to mountain wave) up to 22,000 ft, over the route from 677 to 1086 nm out; AIRMET in force: moderate turbulence from 24,000 ft to 36,000 ft, over the route from 1006 to 1255 nm out. 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), over the first 747 nm of the route. 2 pilot reports of turbulence near the line in the last three hours: light to moderate chop turbulence, at 25,000 ft, 6 nm south, 6:23 am CDT (11:23 UTC); light chop turbulence, at 30,000 ft, 50 nm south, 8:06 am CDT (13:06 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 14,000 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 STL.

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

P32R at 3,100 ft, 46 nm north, 7:05 am CDT (12:05 UTC): remarks: 30 knots wind shear during the climb from 3,000 ft to 3,100 ft zkc fdc xj. At the departure end, 46 nm north of the line.
as filed, and in English
```
COU UA /OV COU045050/TM 1205/FL031/TP P32R/RM 30KTS WS DURC 030-031 /ZKC FDC XJ
```
Report
a routine report filed through COU
Where
50 nm northeast (045°) of COU
Time
12:05 UTC
Height
at 3,100 ft
Aircraft
P32R
Remarks
30 knots wind shear during the climb from 3,000 ft to 3,100 ft zkc fdc xj
E170 at 25,000 ft, 6 nm south, 6:23 am CDT (11:23 UTC): light to moderate chop turbulence, remarks: zkc fdc xj. 428 nm along the route, 6 nm south of the line.
as filed, and in English
```
DDC UA /OV DDC125045/TM 1123/FL250/TP E170/TB LGT-MOD CHOP/RM /ZKC FDC XJ
```
Report
a routine report filed through DDC
Where
45 nm southeast (125°) of DDC
Time
11:23 UTC
Height
at 25,000 ft
Aircraft
E170
Turbulence
light to moderate chop
Remarks
zkc fdc xj
E75L at 30,000 ft, 50 nm south, 8:06 am CDT (13:06 UTC): light chop turbulence, remarks: zab fdcs. 697 nm along the route, 50 nm south of the line.
as filed, and in English
```
LVS UA /OV FTI090040/TM 1306/FL300/TP E75L/TB CONS LGT CHOP OCNL MOD CHOP/RM ZAB FDCS
```
Report
a routine report filed through LVS
Where
40 nm east (090°) of FTI
Time
13:06 UTC
Height
at 30,000 ft
Aircraft
E75L
Turbulence
continuous light chop occasional moderate chop
Remarks
zab fdcs
C172 at 6,000 ft, 29 nm north, 8:32 am CDT (13:32 UTC): a broken layer above 8,000 ft. 1086 nm along the route, 29 nm north of the line.
as filed, and in English
```
PRC UA /OV PRC090001/TM 1332/FL060/TP C172/SK BKN080
```
Report
a routine report filed through PRC
Where
1 nm east (090°) of PRC
Time
13:32 UTC
Height
at 6,000 ft
Aircraft
C172
Sky
a broken layer from 8,000 ft

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 westbound cruising heights for this course (VFR: even thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 13 forecast points nearest it (STL, COU, MKC, ICT, GAG, GCK, TCC, ALS, ABQ, FMN, PRC, BLH, SAN). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
4,500 ft	250° at 21 kt	+21 kt	21 °C	99 kt	13 h 35 min	8:11 pm PDT (03:11 UTC)
6,500 ft	240° at 21 kt	+20 kt	16 °C	100 kt	13 h 27 min	8:03 pm PDT (03:03 UTC)
8,500 ft	230° at 24 kt	+22 kt	10 °C	98 kt	13 h 43 min	8:19 pm PDT (03:19 UTC)
10,500 ft	230° at 28 kt	+26 kt	7 °C	94 kt	14 h 19 min	8:55 pm PDT (03:55 UTC)
12,500 ft	230° at 32 kt	+30 kt	3 °C	90 kt	14 h 57 min	9:33 pm PDT (04:33 UTC)
14,500 ft	240° at 36 kt	+34 kt	-1 °C	86 kt	15 h 38 min	10:14 pm PDT (05:14 UTC)
16,500 ft	240° at 39 kt	+38 kt	-5 °C	82 kt	16 h 24 min	11:00 pm PDT (06:00 UTC)
18,000 ft FL180	240° at 42 kt	+41 kt	-8 °C	79 kt	17 h 02 min	11:38 pm PDT (06:38 UTC)
24,000 ft FL240	240° at 52 kt	+51 kt	-21 °C	69 kt	19 h 30 min	2:06 am PDT (09:06 UTC)
30,000 ft FL300	240° at 66 kt	+64 kt	-31 °C	56 kt	24 h 01 min	6:37 am PDT (13:37 UTC)
34,000 ft FL340	240° at 71 kt	+68 kt	-39 °C	52 kt	25 h 52 min	8:28 am PDT (15:28 UTC)
39,000 ft FL390	230° at 73 kt	+70 kt	-49 °C	50 kt	26 h 54 min	9:30 am PDT (16:30 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

Point	From	3,000	6,000	9,000	12,000	18,000	24,000	30,000	34,000	39,000
STL	used from 0 nm out; 25 nm from the line	280/33	270/18 19°	230/16 13°	230/21 6°	270/29 -8°	280/42 -20°	290/71 -28°	300/68 -38°	300/59 -48°
COU	used from 50 nm out; 20 nm from the line	270/30	290/13 18°	250/16 14°	240/23 6°	270/33 -7°	280/44 -20°	280/69 -29°	280/65 -38°	280/55 -49°
MKC	used from 149 nm out; 56 nm from the line	250/26	260/24 19°	240/26 13°	250/31 5°	250/31 -7°	260/46 -20°	270/73 -28°	270/67 -37°	270/57 -49°
ICT	used from 249 nm out; 66 nm from the line	230/35	240/22 21°	240/25 14°	230/31 6°	240/34 -7°	250/51 -18°	250/66 -29°	250/64 -37°	250/54 -49°
GAG	used from 398 nm out; 75 nm from the line		230/28 21°	230/28 14°	230/37 7°	230/32 -7°	240/55 -18°	230/64 -29°	230/62 -37°	230/62 -50°
GCK	used from 448 nm out; 47 nm from the line		240/26 21°	240/32 12°	240/38 7°	230/48 -6°	230/53 -21°	230/84 -28°	230/80 -37°	230/77 -50°
TCC	used from 598 nm out; 89 nm from the line		240/20	220/27 12°	220/40 5°	220/52 -6°	220/63 -18°	220/74 -28°	220/69 -37°	230/68 -50°
ALS	used from 697 nm out; 83 nm from the line				230/39 2°	230/68 -11°	230/90 -20°	220/109 -28°	220/108 -37°	220/104 -48°
ABQ	used from 747 nm out; 57 nm from the line			220/21 8°	230/34 3°	230/66 -8°	230/82 -21°	220/97 -29°	220/96 -37°	220/92 -49°
FMN	used from 896 nm out; 104 nm from the line			230/27 5°	230/35 -1°	230/52 -11°	220/74 -22°	220/112 -31°	220/126 -38°	220/126 -49°
PRC	used from 946 nm out; 119 nm from the line			210/29 4°	210/38 -1°	240/50 -10°	230/59 -23°	230/75 -36°	220/101 -41°	220/110 -47°
BLH	used from 1145 nm out; 47 nm from the line	290/9	210/26 9°	230/32 6°	250/23 5°	260/33 -10°	260/35 -23°	270/32 -38°	240/50 -44°	230/82 -49°
SAN	used from 1295 nm out; 33 nm from the line	300/6	290/7 3°	320/20 11°	310/22 5°	290/25 -10°	320/31 -21°	340/32 -38°	280/23 -46°	260/42 -51°

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
STL St Louis, MO	departure	VFR Sky: a few clouds at 15,000 feet	from the southwest (220°) at 8 knots	10+ mi	none	617 ft	7:51 am CDT (12:51 UTC)
JEF Jefferson City, MO	80 nm out, 5 nm northwest of the line, tower	VFR	variable at 3 knots	10+ mi	none	549 ft	12:53 UTC
BUM Butler, MO	189 nm out, 2 nm north of the line	no report just now				893 ft
ICT Wichita, KS	339 nm out, 7 nm south of the line, tower	VFR Sky: a few clouds at 12,000 feet	from the south (180°) at 8 knots	10+ mi	none	1,332 ft	12:53 UTC
MEJ Meade, KS	478 nm out, 4 nm northwest of the line	no report just now				2,527 ft
EHA Elkhart, KS	558 nm out, 5 nm north of the line	VFR	from the southwest (220°) at 15 knots	10+ mi	none	3,621 ft	13:15 UTC
SAF Santa Fe, NM	777 nm out, 19 nm southeast of the line, tower	VFR Sky: scattered clouds at 7,500 feet	from the north-northeast (030°) at 5 knots	10+ mi	none	6,348 ft	12:53 UTC
XNI Zuni, NM	916 nm out, 7 nm south of the line	marginal VFR Sky: a broken layer at 1,600 feet, overcast at 2,500 feet Weather: light drizzle, mist	from the east-northeast (070°) at 3 knots	5 mi	1,600 ft	6,371 ft	13:15 UTC
PAN Payson, AZ	1046 nm out, 12 nm southeast of the line	low IFR Sky: overcast at 300 feet	from the south (190°) at 7 knots	10+ mi	300 ft	5,160 ft	13:15 UTC
CLR Calipatria, CA	1265 nm out, 2 nm north of the line	no report just now				-181 ft
SDM San Diego, CA	destination	reported, no category	from the east (100°) at 4 knots		3,900 ft	526 ft	5:53 am PDT (12:53 UTC)

The highest airport on this list sits at 6,371 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

STL St Louis, MO

the observation and the forecast as issued, and in English

METAR KSTL 131251Z COR 22008KT 10SM FEW150 23/13 A2992 RMK AO2 SLP118 T02280133 $

METAR: a routine hourly observation
KSTL: the station, KSTL
131251Z: observed 7:51 am CDT (12:51 UTC)
COR: a corrected report
22008KT: wind from the southwest at 8 knots
10SM: visibility 10 miles
FEW150: a few clouds at 15,000 feet
23/13: temperature 23 °C (73 °F), dew point 13 °C (55 °F)
A2992: altimeter setting 29.92 inches of mercury
RMK: remarks follow
AO2: automated station with a precipitation sensor
SLP118: sea-level pressure 1011.8 hPa
T02280133: temperature 22.8 °C (73 °F), dew point 13.3 °C (56 °F)
$: the station needs maintenance

TAF KSTL 131124Z 1312/1418 23007KT P6SM SCT150 FM140200 20007KT P6SM FEW250 PROB30 1407/1410 4SM -TSRA BKN100CB FM141000 VRB04KT 6SM SHRA BR BKN040 FM141400 VRB04KT 4SM SHRA BR OVC025

TAF: a terminal aerodrome forecast: the weather expected at the airport, usually for the next 24 or 30 hours
KSTL: the station, KSTL
131124Z: issued 6:24 am CDT (11:24 UTC)
1312/1418 23007KT P6SM SCT150: valid from Tue 7:00 am CDT (12:00 UTC) to Wed 1:00 pm CDT (18:00 UTC): wind from the southwest at 7 knots, visibility more than 6 miles, scattered clouds at 15,000 feet
FM140200 20007KT P6SM FEW250: from Tue 9:00 pm CDT (02:00 UTC): wind from the south-southwest at 7 knots, visibility more than 6 miles, a few clouds at 25,000 feet
PROB30 1407/1410 4SM -TSRA BKN100CB: a 30% chance from Wed 2:00 am CDT (07:00 UTC) to Wed 5:00 am CDT (10:00 UTC): visibility 4 miles, light thunderstorms with rain, a broken layer at 10,000 feet (thunderheads)
FM141000 VRB04KT 6SM SHRA BR BKN040: from Wed 5:00 am CDT (10:00 UTC): wind light and variable, visibility 6 miles, rain showers, mist, a broken layer at 4,000 feet
FM141400 VRB04KT 4SM SHRA BR OVC025: from Wed 9:00 am CDT (14:00 UTC): wind light and variable, visibility 4 miles, rain showers, mist, overcast at 2,500 feet

JEF Jefferson City, MO

the observation and the forecast as issued, and in English

METAR KJEF 131253Z VRB03KT 10SM CLR 21/14 A2991 RMK AO2 SLP116 T02110139 $

METAR: a routine hourly observation
KJEF: the station, KJEF
131253Z: observed 12:53 UTC on the 13th
VRB03KT: wind light and variable
10SM: visibility 10 miles
CLR: clear skies
21/14: temperature 21 °C (70 °F), dew point 14 °C (57 °F)
A2991: altimeter setting 29.91 inches of mercury
RMK: remarks follow
AO2: automated station with a precipitation sensor
SLP116: sea-level pressure 1011.6 hPa
T02110139: temperature 21.1 °C (70 °F), dew point 13.9 °C (57 °F)
$: the station needs maintenance

TAF KJEF 131124Z 1312/1412 22005KT P6SM SKC PROB30 1404/1407 2SM -TSRA BKN100CB FM140700 VRB03KT 6SM SHRA BR BKN030 FM140900 VRB03KT 4SM SHRA BR BKN015

TAF: a terminal aerodrome forecast: the weather expected at the airport, usually for the next 24 or 30 hours
KJEF: the station, KJEF
131124Z: issued 11:24 UTC on the 13th
1312/1412 22005KT P6SM SKC: valid from Tue 12:00 UTC to Wed 12:00 UTC: wind from the southwest at 5 knots, visibility more than 6 miles, clear skies
PROB30 1404/1407 2SM -TSRA BKN100CB: a 30% chance from Wed 04:00 UTC to Wed 07:00 UTC: visibility 2 miles, light thunderstorms with rain, a broken layer at 10,000 feet (thunderheads)
FM140700 VRB03KT 6SM SHRA BR BKN030: from Wed 07:00 UTC: wind light and variable, visibility 6 miles, rain showers, mist, a broken layer at 3,000 feet
FM140900 VRB03KT 4SM SHRA BR BKN015: from Wed 09:00 UTC: wind light and variable, visibility 4 miles, rain showers, mist, a broken layer at 1,500 feet

ICT Wichita, KS

the observation and the forecast as issued, and in English

METAR KICT 131253Z 18008KT 10SM FEW120 22/21 A2984 RMK AO2 SLP092 ACC DSNT SW-NW T02170206

METAR: a routine hourly observation
KICT: the station, KICT
131253Z: observed 12:53 UTC on the 13th
18008KT: wind from the south at 8 knots
10SM: visibility 10 miles
FEW120: a few clouds at 12,000 feet
22/21: temperature 22 °C (72 °F), dew point 21 °C (70 °F)
A2984: altimeter setting 29.84 inches of mercury
RMK: remarks follow
AO2: automated station with a precipitation sensor
SLP092: sea-level pressure 1009.2 hPa
ACC DSNT: altocumulus castellanus in the distance (more than 10 miles)
SW-NW
T02170206: temperature 21.7 °C (71 °F), dew point 20.6 °C (69 °F)

TAF KICT 131145Z 1312/1412 19011KT P6SM FEW100 FM131500 20015KT P6SM FEW100 FM132000 18015G25KT P6SM SCT050 FM132300 17011KT P6SM SCT040 BKN100 TEMPO 1401/1405 2SM -TSRA BKN035CB FM140500 05010KT 5SM -TSRA FEW008 BKN015 OVC030CB FM141000 VRB05KT P6SM OVC008

TAF: a terminal aerodrome forecast: the weather expected at the airport, usually for the next 24 or 30 hours
KICT: the station, KICT
131145Z: issued 11:45 UTC on the 13th
1312/1412 19011KT P6SM FEW100: valid from Tue 12:00 UTC to Wed 12:00 UTC: wind from the south at 11 knots, visibility more than 6 miles, a few clouds at 10,000 feet
FM131500 20015KT P6SM FEW100: from Tue 15:00 UTC: wind from the south-southwest at 15 knots, visibility more than 6 miles, a few clouds at 10,000 feet
FM132000 18015G25KT P6SM SCT050: from Tue 20:00 UTC: wind from the south at 15 knots, gusting to 25, visibility more than 6 miles, scattered clouds at 5,000 feet
FM132300 17011KT P6SM SCT040 BKN100: from Tue 23:00 UTC: wind from the south at 11 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 10,000 feet
TEMPO 1401/1405 2SM -TSRA BKN035CB: at times from Wed 01:00 UTC to Wed 05:00 UTC: visibility 2 miles, light thunderstorms with rain, a broken layer at 3,500 feet (thunderheads)
FM140500 05010KT 5SM -TSRA FEW008 BKN015 OVC030CB: from Wed 05:00 UTC: wind from the northeast at 10 knots, visibility 5 miles, light thunderstorms with rain, a few clouds at 800 feet, a broken layer at 1,500 feet, overcast at 3,000 feet (thunderheads)
FM141000 VRB05KT P6SM OVC008: from Wed 10:00 UTC: wind light and variable, visibility more than 6 miles, overcast at 800 feet

EHA Elkhart, KS

the observation as issued, and in English

METAR KEHA 131315Z AUTO 22015KT 10SM CLR 16/11 A2994 RMK AO2 T01640108

METAR: a routine hourly observation
KEHA: the station, KEHA
131315Z: observed 13:15 UTC on the 13th
AUTO: fully automated report, nobody checked it
22015KT: wind from the southwest at 15 knots
10SM: visibility 10 miles
CLR: clear skies
16/11: temperature 16 °C (61 °F), dew point 11 °C (52 °F)
A2994: altimeter setting 29.94 inches of mercury
RMK: remarks follow
AO2: automated station with a precipitation sensor
T01640108: temperature 16.4 °C (62 °F), dew point 10.8 °C (51 °F)

SAF Santa Fe, NM

the observation and the forecast as issued, and in English

METAR KSAF 131253Z 03005KT 10SM SCT075 09/07 A3011 RMK AO2 SLP120 T00940067

METAR: a routine hourly observation
KSAF: the station, KSAF
131253Z: observed 12:53 UTC on the 13th
03005KT: wind from the north-northeast at 5 knots
10SM: visibility 10 miles
SCT075: scattered clouds at 7,500 feet
09/07: temperature 9 °C (48 °F), dew point 7 °C (45 °F)
A3011: altimeter setting 30.11 inches of mercury
RMK: remarks follow
AO2: automated station with a precipitation sensor
SLP120: sea-level pressure 1012.0 hPa
T00940067: temperature 9.4 °C (49 °F), dew point 6.7 °C (44 °F)

TAF KSAF 131120Z 1312/1412 26006KT P6SM FEW070 FM131800 22013G21KT P6SM SCT070 FM140000 21008KT P6SM SCT080 FM140600 VRB04KT P6SM SCT060 BKN120

TAF: a terminal aerodrome forecast: the weather expected at the airport, usually for the next 24 or 30 hours
KSAF: the station, KSAF
131120Z: issued 11:20 UTC on the 13th
1312/1412 26006KT P6SM FEW070: valid from Tue 12:00 UTC to Wed 12:00 UTC: wind from the west at 6 knots, visibility more than 6 miles, a few clouds at 7,000 feet
FM131800 22013G21KT P6SM SCT070: from Tue 18:00 UTC: wind from the southwest at 13 knots, gusting to 21, visibility more than 6 miles, scattered clouds at 7,000 feet
FM140000 21008KT P6SM SCT080: from Wed 00:00 UTC: wind from the south-southwest at 8 knots, visibility more than 6 miles, scattered clouds at 8,000 feet
FM140600 VRB04KT P6SM SCT060 BKN120: from Wed 06:00 UTC: wind light and variable, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 12,000 feet

XNI Zuni, NM

the observation as issued, and in English

METAR KXNI 131315Z AUTO 07003KT 5SM -DZ BR BKN016 OVC025 10/09 A3007 RMK AO2

METAR: a routine hourly observation
KXNI: the station, KXNI
131315Z: observed 13:15 UTC on the 13th
AUTO: fully automated report, nobody checked it
07003KT: wind from the east-northeast at 3 knots
5SM: visibility 5 miles
-DZ: light drizzle
BR: mist
BKN016: a broken layer at 1,600 feet
OVC025: overcast at 2,500 feet
10/09: temperature 10 °C (50 °F), dew point 9 °C (48 °F)
A3007: altimeter setting 30.07 inches of mercury
RMK: remarks follow
AO2: automated station with a precipitation sensor

PAN Payson, AZ

the observation as issued, and in English

METAR KPAN 131315Z AUTO 19007KT 150V210 10SM OVC003 12/12 A3001 RMK AO2

METAR: a routine hourly observation
KPAN: the station, KPAN
131315Z: observed 13:15 UTC on the 13th
AUTO: fully automated report, nobody checked it
19007KT 150V210: wind from the south at 7 knots, direction varying between 150° and 210°
10SM: visibility 10 miles
OVC003: overcast at 300 feet
12/12: temperature 12 °C (54 °F), dew point 12 °C (54 °F)
A3001: altimeter setting 30.01 inches of mercury
RMK: remarks follow
AO2: automated station with a precipitation sensor

SDM San Diego, CA

the observation as issued, and in English

METAR KSDM 131253Z AUTO 10004KT BKN039 OVC047 16/11 A2995 RMK AO2 SLP139 T01560111 $

METAR: a routine hourly observation
KSDM: the station, KSDM
131253Z: observed 5:53 am PDT (12:53 UTC)
AUTO: fully automated report, nobody checked it
10004KT: wind from the east at 4 knots
BKN039: a broken layer at 3,900 feet
OVC047: overcast at 4,700 feet
16/11: temperature 16 °C (61 °F), dew point 11 °C (52 °F)
A2995: altimeter setting 29.95 inches of mercury
RMK: remarks follow
AO2: automated station with a precipitation sensor
SLP139: sea-level pressure 1013.9 hPa
T01560111: temperature 15.6 °C (60 °F), dew point 11.1 °C (52 °F)
$: the station needs maintenance

At SDM when you get there the forecast at the estimated arrival, 8:03 pm PDT (03:03 UTC)

SDM has no terminal forecast; use the nearest airport that does.

The forecast for STL, the departure

From Tue 7:00 am CDT (12:00 UTC): wind from the southwest at 7 knots, visibility more than 6 miles, scattered clouds at 15,000 feet
From Tue 9:00 pm CDT (02:00 UTC): wind from the south-southwest at 7 knots, visibility more than 6 miles, a few clouds at 25,000 feet
30% chance between Wed 2:00 am CDT (07:00 UTC) and 5:00 am CDT (10:00 UTC): visibility 4 miles, light thunderstorms with rain, a broken layer at 10,000 feet (thunderheads)
From Wed 5:00 am CDT (10:00 UTC): wind light and variable, visibility 6 miles, rain showers, mist, a broken layer at 4,000 feet
From Wed 9:00 am CDT (14:00 UTC): wind light and variable, visibility 4 miles, rain showers, mist, overcast at 2,500 feet

STL:

the forecast as issued, and in English

TAF KSTL 131124Z 1312/1418 23007KT P6SM SCT150 FM140200 20007KT P6SM FEW250 PROB30 1407/1410 4SM -TSRA BKN100CB FM141000 VRB04KT 6SM SHRA BR BKN040 FM141400 VRB04KT 4SM SHRA BR OVC025

TAF: a terminal aerodrome forecast: the weather expected at the airport, usually for the next 24 or 30 hours
KSTL: the station, KSTL
131124Z: issued 6:24 am CDT (11:24 UTC)
1312/1418 23007KT P6SM SCT150: valid from Tue 7:00 am CDT (12:00 UTC) to Wed 1:00 pm CDT (18:00 UTC): wind from the southwest at 7 knots, visibility more than 6 miles, scattered clouds at 15,000 feet
FM140200 20007KT P6SM FEW250: from Tue 9:00 pm CDT (02:00 UTC): wind from the south-southwest at 7 knots, visibility more than 6 miles, a few clouds at 25,000 feet
PROB30 1407/1410 4SM -TSRA BKN100CB: a 30% chance from Wed 2:00 am CDT (07:00 UTC) to Wed 5:00 am CDT (10:00 UTC): visibility 4 miles, light thunderstorms with rain, a broken layer at 10,000 feet (thunderheads)
FM141000 VRB04KT 6SM SHRA BR BKN040: from Wed 5:00 am CDT (10:00 UTC): wind light and variable, visibility 6 miles, rain showers, mist, a broken layer at 4,000 feet
FM141400 VRB04KT 4SM SHRA BR OVC025: from Wed 9:00 am CDT (14:00 UTC): wind light and variable, visibility 4 miles, rain showers, mist, overcast at 2,500 feet

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

6/4812 El Centro, CA, Wednesday, July 15, 2026 through Tuesday, July 13, 2027 Local 3 nm from the route, 1275 nm along the route · security · until 13 July · ZLA
6/2652 Coyote Wells, CA, Saturday, July 4, 2026 through Saturday, January 2, 2027 Local 15 nm from the route, at the destination end · security · until 2 January · ZLA

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

STL: 50 notices in force, 3 starting within a week. all of them, grouped →

closed Taxiway A between taxiway A3 and taxiway A4 closed until Tue 13 Oct, 2:00 pm CDT (19:00 UTC) · STL 10/202
as issued
```
!STL 10/202 STL TWY A BTN TWY A3 AND TWY A4 CLSD 2610131206-2610131900
```
closed Runway 12R/30L closed except crossing until Tue 13 Oct, 9:00 am CDT (14:00 UTC) · STL 10/201
as issued
```
!STL 10/201 STL RWY 12R/30L CLSD EXC XNG 2610131205-2610131400
```
closed Taxiway Q between runway 12R/30L and taxiway D closed until Sat 31 Oct, 6:59 pm CDT (23:59 UTC) · STL 10/008
as issued
```
!STL 10/008 STL TWY Q BTN RWY 12R/30L AND TWY D CLSD 2610010410-2610312359
```
closed Taxiway S1 between runway 06/24 and taxiway S closed until Sat 31 Oct, 6:59 pm CDT (23:59 UTC) · STL 10/007
as issued
```
!STL 10/007 STL TWY S1 BTN RWY 06/24 AND TWY S CLSD 2610010350-2610312359
```

SDM: 2 notices in force. all of them, grouped →

closed Taxiway G east of taxiway C closed to aircraft more than 100,000 pounds until Thu 21 Jan, 2:00 pm PST (22:00 UTC) · SDM 03/011
as issued
```
!SDM 03/011 SDM TWY G EAST OF TWY C CLSD TO ACFT MORE THAN 100000LB 2603111717-2701212200
```

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

Navigation aid ILS runway 30L outer marker out of service until Fri 30 Oct, 3:00 pm CDT (20:00 UTC), estimated · 0 nm along the route, 15 nm off the line · CPS 08/075
as issued
```
!CPS 08/075 CPS NAV ILS RWY 30L OM U/S 2608260604-2610302000EST
```
Obstruction tower lights (ASR 1006871) 38°45′N 90°09′W (7.6 nautical miles northeast MO7) 756.2FT (344.2FT above ground level) out of service until Fri 20 Nov, 5:59 pm CST (23:59 UTC) · 0 nm along the route, 10 nm off the line · MO7 08/526
as issued
```
!STL 08/526 MO7 OBST TOWER LGT (ASR 1006871) 384501.00N0900946.00W (7.6NM NE MO7) 756.2FT (344.2FT AGL) U/S 2608240355-2611202359
```
Navigation aid ILS runway 32R outer marker out of service until Fri 4 Feb 2028, 2:00 pm CST (20:00 UTC), estimated · 0 nm along the route, 28 nm off the line · BLV 08/016
as issued
```
!BLV 08/016 BLV NAV ILS RWY 32R OM U/S 2608051755-2802042000EST
```
Obstruction tower lights (ASR 1225623) 38°45′N 90°37′W (5.6 nautical miles WNW 1H0) 969.8FT (504.9FT above ground level) out of service until Sat 14 Nov, 10:49 pm CST (04:49 UTC) · 10 nm along the route, 3 nm off the line · 1H0 08/397
as issued
```
!STL 08/397 1H0 OBST TOWER LGT (ASR 1225623) 384507.30N0903722.60W (5.6NM WNW 1H0) 969.8FT (504.9FT AGL) U/S 2608170349-2611150449
```
Obstruction tower lights (ASR 1054418) 38°38′N 90°38′W (0.9 nautical miles SSE SUS) 746.1FT (89.9FT above ground level) out of service until Wed 11 Nov, 12:20 am CST (06:20 UTC) · 10 nm along the route, 6 nm off the line · SUS 08/019
as issued
```
!SUS 08/019 SUS OBST TOWER LGT (ASR 1054418) 383856.40N0903841.00W (0.9NM SSE SUS) 746.1FT (89.9FT AGL) U/S 2608130520-2611110620
```
Navigation aid ILS runway 26L outer marker out of service until Wed 10 Mar, 3:11 pm CST (21:11 UTC), estimated · 10 nm along the route, 5 nm off the line · SUS 02/006
as issued
```
!SUS 02/006 SUS NAV ILS RWY 26L OM U/S 2602021405-2703102111EST
```
Obstruction tower lights (ASR Unknown) 38°41′N 90°45′W (4.8 nautical miles northwest SUS) Unknown (260 ft above ground level) out of service until Thu 3 Dec, 5:59 pm CST (23:59 UTC) · 30 nm along the route, 2 nm off the line · FTZ 09/072
as issued
```
!STL 09/072 FTZ OBST TOWER LGT (ASR UNKNOWN) 384134.00N0904520.99W (4.8NM NW SUS) UNKNOWN (260FT AGL) U/S 2609031226-2612032359
```
Obstruction tower lights (ASR Unknown) 38°41′N 90°59′W (5.7 nautical miles north FYG) Unknown (235 ft above ground level) out of service until Sat 31 Oct, 6:59 pm CDT (23:59 UTC) · 30 nm along the route, 2 nm off the line · FTZ 07/724
as issued
```
!STL 07/724 FTZ OBST TOWER LGT (ASR UNKNOWN) 384110.00N0905952.00W (5.7NM N FYG) UNKNOWN (235FT AGL) U/S 2607301417-2610312359
```
Obstruction tower lights (ASR 1249262) 38°36′N 91°27′W (6.2 nautical miles SSE 63M) 1160.4FT (264.8FT above ground level) out of service until Sun 6 Dec, 5:59 pm CST (23:59 UTC) · 50 nm along the route, 2 nm off the line · 63M 10/044
as issued
```
!STL 10/044 63M OBST TOWER LGT (ASR 1249262) 383622.00N0912703.00W (6.2NM SSE 63M) 1160.4FT (264.8FT AGL) U/S 2610021319-2612062359
```
Obstruction tower lights (ASR 1243743) 38°28′N 91°38′W (7.9 nautical miles east 1H3) 1002.0FT (310.0FT above ground level) out of service until Wed 30 Dec, 3:09 am CST (09:09 UTC) · 60 nm along the route, 8 nm off the line · 1H3 10/004
as issued
```
!COU 10/004 1H3 OBST TOWER LGT (ASR 1243743) 382809.20N0913856.50W (7.9NM E 1H3) 1002.0FT (310.0FT AGL) U/S 2610010809-2612300909
```
Obstruction tower lights (ASR 1304310) 38°29′N 91°51′W (2.3 nautical miles northwest 1H3) 1,083 ft (218 ft above ground level) out of service until Sat 7 Nov, 11:00 am CST (17:00 UTC), estimated · 70 nm along the route, 5 nm off the line · 1H3 10/165
as issued
```
!COU 10/165 1H3 OBST TOWER LGT (ASR 1304310) 382950.70N0915111.28W (2.3NM NW 1H3) 1083FT (218FT AGL) U/S 2610081731-2611071700EST
```
Obstruction tower lights (ASR 1293359) 38°30′N 91°56′W (6.4 nautical miles WNW 1H3) 886.8FT (214.9FT above ground level) out of service until Sun 8 Nov, 5:59 pm CST (23:59 UTC) · 80 nm along the route, 6 nm off the line · 1H3 10/156
as issued
```
!COU 10/156 1H3 OBST TOWER LGT (ASR 1293359) 383025.20N0915643.90W (6.4NM WNW 1H3) 886.8FT (214.9FT AGL) U/S 2610080720-2611082359
```
Obstruction tower lights (ASR 1293359) 38°30′N 91°56′W (6.4 nautical miles west 1H3) 887 ft (215 ft above ground level) out of service until Thu 19 Nov, 4:13 pm CST (22:13 UTC), estimated · 80 nm along the route, 6 nm off the line · 1H3 10/135
as issued
```
!COU 10/135 1H3 OBST TOWER LGT (ASR 1293359) 383025.20N0915643.90W (6.4NM W 1H3) 887FT (215FT AGL) U/S 2610051613-2611192213EST
```
Navigation aid ILS runway 30 outer marker out of service until Mon 30 Aug 2027, 4:11 pm CDT (21:11 UTC), estimated · 80 nm along the route, 5 nm off the line · JEF 07/026
as issued
```
!JEF 07/026 JEF NAV ILS RWY 30 OM U/S 2607311429-2708302111EST
```
Obstruction tower lights (ASR 1004205) 38°32′N 92°12′W (3.5 nautical miles southwest JEF) 1,059 ft (252 ft above ground level) out of service until Thu 19 Nov, 4:22 pm CST (22:22 UTC), estimated · 90 nm along the route, 3 nm off the line · JEF 10/005
as issued
```
!JEF 10/005 JEF OBST TOWER LGT (ASR 1004205) 383243.60N0921210.80W (3.5NM SW JEF) 1059FT (252FT AGL) U/S 2610051625-2611192222EST
```
Obstruction tower lights (ASR 1004493) 38°33′N 92°11′W (2.3 nautical miles southwest JEF) 1014.8FT (334.0FT above ground level) out of service until Tue 10 Nov, 11:01 pm CST (05:01 UTC) · 90 nm along the route, 4 nm off the line · JEF 09/011
as issued
```
!JEF 09/011 JEF OBST TOWER LGT (ASR 1004493) 383350.00N0921122.00W (2.3NM SW JEF) 1014.8FT (334.0FT AGL) U/S 2609270401-2611110501
```
Obstruction tower lights (ASR 1265104) 38°37′N 92°25′W (12.4 nautical miles west JEF) 1121.4FT (279.9FT above ground level) out of service until Fri 25 Dec, 2:00 am CST (08:00 UTC) · 100 nm along the route, 7 nm off the line · JEF 10/004
as issued
```
!JEF 10/004 JEF OBST TOWER LGT (ASR 1265104) 383711.40N0922502.50W (12.4NM W JEF) 1121.4FT (279.9FT AGL) U/S 2610070958-2612250800
```
Obstruction tower lights (ASR 1236409) 38°18′N 92°48′W (8.2 nautical miles SSE 3VS) 1116.8FT (254.9FT above ground level) out of service until Wed 18 Nov, 8:59 am CST (14:59 UTC) · 120 nm along the route, 10 nm off the line · 3VS 08/436
as issued
```
!COU 08/436 3VS OBST TOWER LGT (ASR 1236409) 381805.30N0924830.30W (8.2NM SSE 3VS) 1116.8FT (254.9FT AGL) U/S 2608201359-2611181459
```
Obstruction tower lights (ASR 1236413) 38°19′N 92°56′W (7.2 nautical miles SSW 3VS) 1346.8FT (304.8FT above ground level) out of service until Tue 17 Nov, 2:01 am CST (08:01 UTC) · 120 nm along the route, 8 nm off the line · 3VS 08/397
as issued
```
!COU 08/397 3VS OBST TOWER LGT (ASR 1236413) 381901.30N0925601.60W (7.2NM SSW 3VS) 1346.8FT (304.8FT AGL) U/S 2608190701-2611170801
```
Obstruction tower lights (ASR 1324609) 38°17′N 92°47′W (9.3 nautical miles SSE 3VS) 1,083 ft (299 ft above ground level) out of service until Fri 6 Nov, 5:59 pm CST (23:59 UTC) · 120 nm along the route, 2 nm off the line · 3VS 08/161
as issued
```
!COU 08/161 3VS OBST TOWER LGT (ASR 1324609) 381717.30N0924721.90W (9.3NM SSE 3VS) 1083FT (299FT AGL) U/S 2608062136-2611062359
```
Obstruction tower lights (ASR 1324009) 38°14′N 93°18′W (5.0 nautical miles ENE 75U) 1,228 ft (365 ft above ground level) out of service until Mon 9 Nov, 3:51 pm CST (21:51 UTC) · 139 nm along the route, 9 nm off the line · 75U 09/428
as issued
```
!COU 09/428 75U OBST TOWER LGT (ASR 1324009) 381426.16N0931855.31W (5.0NM ENE 75U) 1228FT (365FT AGL) U/S 2609252152-2611092151
```
Obstruction tower lights (ASR 1331418) 38°22′N 93°25′W (4.1 nautical miles northwest RAW) 1,098 ft (260 ft above ground level) out of service until Thu 19 Nov, 2:28 pm CST (20:28 UTC), estimated · 149 nm along the route, 4 nm off the line · RAW 10/113
as issued
```
!COU 10/113 RAW OBST TOWER LGT (ASR 1331418) 382245.30N0932523.30W (4.1NM NW RAW) 1098FT (260FT AGL) U/S 2610051428-2611192028EST
```
Obstruction tower lights (ASN 2012-ACE-3817-OE) 38°15′N 93°24′W (2.6 nautical miles northeast 75U) 1,149 ft (420 ft above ground level) out of service until Thu 5 Nov, 5:59 pm CST (23:59 UTC) · 149 nm along the route, 8 nm off the line · 75U 10/106
as issued
```
!COU 10/106 75U OBST TOWER LGT (ASN 2012-ACE-3817-OE) 381537N0932432W (2.6NM NE 75U) 1149FT (420FT AGL) U/S 2610051247-2611052359
```
Obstruction tower lights (ASR 1002494) 38°28′N 93°30′W (9.3 nautical miles WNW 0R2) 1879.6FT (1049.9FT above ground level) out of service until Sun 1 Nov, 5:59 pm CST (23:59 UTC) · 149 nm along the route, 6 nm off the line · 0R2 09/493
as issued
```
!COU 09/493 0R2 OBST TOWER LGT (ASR 1002494) 382827.00N0933029.00W (9.3NM WNW 0R2) 1879.6FT (1049.9FT AGL) U/S 2609301014-2611012359
```
Obstruction tower lights (ASR 1288016) 38°26′N 93°52′W (10.7 nautical miles WNW GLY) 1007.9FT (262.8FT above ground level) out of service until Thu 4 Feb, 2:52 pm CST (20:52 UTC) · 169 nm along the route, 8 nm off the line · GLY 10/007
as issued
```
!GLY 10/007 GLY OBST TOWER LGT (ASR 1288016) 382629.90N0935237.00W (10.7NM WNW GLY) 1007.9FT (262.8FT AGL) U/S 2610072052-2702042052
```
Obstruction tower lights (ASR 1262400) 38°11′N 94°02′W (15.4 nautical miles ESE BUM) 1202.1FT (311.0FT above ground level) out of service until Sun 18 Oct, 3:30 am CDT (08:30 UTC) · 179 nm along the route, 7 nm off the line · BUM 10/085
as issued
```
!COU 10/085 BUM OBST TOWER LGT (ASR 1262400) 381155.40N0940204.90W (15.4NM ESE BUM) 1202.1FT (311.0FT AGL) U/S 2610030930-2610180830
```
Obstruction tower lights (ASN 2025-ACE-844-OE) 38°12′N 94°16′W (5.9 nautical miles SSE BUM) 1,322 ft (400 ft above ground level) out of service until Mon 2 Nov, 5:00 pm CST (23:00 UTC) · 189 nm along the route, 4 nm off the line · BUM 10/044
as issued
```
!COU 10/044 BUM OBST TOWER LGT (ASN 2025-ACE-844-OE) 381218N0941634W (5.9NM SSE BUM) 1322FT (400FT AGL) U/S 2610020115-2611022300
```
Obstruction tower lights (ASR 1033241) 38°12′N 94°45′W (4.1 nautical miles northwest 1KS) 1,283 ft (302 ft above ground level) out of service until Thu 19 Nov, 4:34 pm CST (22:34 UTC), estimated · 209 nm along the route, 1 nm off the line · 1KS 10/150
as issued
```
!ICT 10/150 1KS OBST TOWER LGT (ASR 1033241) 381257.00N0944533.00W (4.1NM NW 1KS) 1283FT (302FT AGL) U/S 2610051634-2611192234EST
```
Obstruction tower lights (ASR 1033241) 38°12′N 94°45′W (4.1 nautical miles northwest 1KS) 1282.8FT (301.8FT above ground level) out of service until Mon 19 Oct, 3:33 pm CDT (20:33 UTC) · 209 nm along the route, 1 nm off the line · 1KS 09/063
as issued
```
!ICT 09/063 1KS OBST TOWER LGT (ASR 1033241) 381257.00N0944533.00W (4.1NM NW 1KS) 1282.8FT (301.8FT AGL) U/S 2609042034-2610192033
```
Obstruction tower lights (ASR 1271272) 37°57′N 95°23′W (5.2 nautical miles north K88) 1347.8FT (342.8FT above ground level) out of service until Mon 19 Oct, 12:29 am CDT (05:29 UTC) · 239 nm along the route, 9 nm off the line · K88 10/111
as issued
```
!ICT 10/111 K88 OBST TOWER LGT (ASR 1271272) 375719.70N0952333.70W (5.2NM N K88) 1347.8FT (342.8FT AGL) U/S 2610040629-2610190529
```

From the FAA's notice service (NOTAMs), the site's copy refreshed every few minutes; last checked 1 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 STL 6:26 pm CDT (23:26 UTC), at SDM 6:16 pm PDT (01:16 UTC) (civil twilight ends 6:41 pm PDT (01:41 UTC)). At 120 knots the arrival at SDM is after sunset there (6:17 pm PDT (01:17 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 · loop National Weather Service

Radar now, the southern Plains · loop National Weather Service

Radar now, the southern Rockies · loop National Weather Service

Aviation forecast, clouds and visibility, the north-central states, 6 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, 6 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

Aviation forecast, clouds and visibility, the south-central states, 6 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 south-central states, 6 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

Aviation forecast, clouds and visibility, the Southwest, 6 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 Southwest, 6 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 · 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: St. Louis Lambert International, Brown Field Municipal.