The U.S. aircraft register, updated daily
Plan a flight · Sun 10:33 pm CDT (03:33 UTC)

St. Louis Lambert International to Monterey Regional STL → MRY

1,494 nautical miles (1,719 statute miles) west on a straight line, true course 275°, about 276° magnetic at the departure end (variation 1W). At 120 knots that is 14 h 39 min at the quickest height in today's winds (4,500 ft, a 18-knot headwind), arriving about 11:12 am PDT (18:12 UTC). 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 W11W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 11:55 pm CDT (04:55 UTC). Near the route, 857 nm along the route.
    as issued
    WSUS33 KKCI 120255
    MKCW WST 120255
    CONVECTIVE SIGMET 11W
    VALID UNTIL 0455Z
    CO NM
    FROM 20WNW PUB-10ENE CIM-50WNW ABQ-30NNE DVC-20WNW PUB
    AREA TS MOV FROM 22040KT. TOPS TO FL340.
  • SIGMET W12W: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 20 knots, until 11:55 pm CDT (04:55 UTC). Near the route, 1265 nm along the route.
    as issued
    WSUS33 KKCI 120255
    MKCW WST 120255
    CONVECTIVE SIGMET 12W
    VALID UNTIL 0455Z
    NV
    FROM 40SSE TWF-10W ELY-30SE OAL-30W OAL-70WSW TWF-40SSE TWF
    AREA TS MOV FROM 24020KT. TOPS TO FL310.
  • 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). Over the route from 199 to 588 nm out.
  • AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 588 to 1016 nm out.
  • AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 598 to 1195 nm out.
  • 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). Over the route from 687 to 906 nm out.
  • AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 717 to 757 nm out.
  • AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 876 to 1195 nm out.
  • AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 986 to 1215 nm out.
  • AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the route from 1205 to 1375 nm out.
  • AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 40 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 STL.

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

Not fetched just now.

Winds aloft along the route, and the time en route the forecast for use 02:00–09:00 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 12 forecast points nearest it (STL, COU, MKC, SLN, GLD, PUB, GJT, BCE, ELY, BIH, FAT, SFO). A plus sign is a headwind, a minus sign a tailwind.

HeightAverage windHead- or tailwindTemperatureGround speedTime en routeArrival
4,500 ft220° at 27 kt+18 kt102 kt14 h 39 min11:12 am PDT (18:12 UTC)
6,500 ft230° at 24 kt+18 kt14 °C102 kt14 h 39 min11:12 am PDT (18:12 UTC)
8,500 ft220° at 25 kt+19 kt9 °C101 kt14 h 48 min11:21 am PDT (18:21 UTC)
10,500 ft220° at 24 kt+18 kt5 °C102 kt14 h 39 min11:12 am PDT (18:12 UTC)
12,500 ft230° at 23 kt+18 kt2 °C102 kt14 h 39 min11:12 am PDT (18:12 UTC)
14,500 ft230° at 25 kt+20 kt-3 °C100 kt14 h 56 min11:29 am PDT (18:29 UTC)
16,500 ft230° at 27 kt+22 kt-7 °C98 kt15 h 15 min11:48 am PDT (18:48 UTC)
18,000 ft FL180230° at 29 kt+23 kt-10 °C97 kt15 h 24 min11:57 am PDT (18:57 UTC)
24,000 ft FL240230° at 38 kt+31 kt-22 °C89 kt16 h 47 min1:20 pm PDT (20:20 UTC)
30,000 ft FL300240° at 51 kt+45 kt-29 °C75 kt19 h 55 min4:28 pm PDT (23:28 UTC)
34,000 ft FL340240° at 53 kt+49 kt-36 °C71 kt21 h 03 min5:36 pm PDT (00:36 UTC)
39,000 ft FL390240° at 49 kt+46 kt-46 °C74 kt20 h 11 min4:44 pm PDT (23:44 UTC)

Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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
STLused from 0 nm out; 25 nm from the line250/24250/24 16°260/23 9°270/16 6°260/25 -6°270/29 -19°290/34 -33°290/48 -41°290/54 -51°
COUused from 50 nm out; 12 nm from the line230/31230/30 15°260/16 11°270/14 6°260/24 -6°270/27 -18°270/37 -32°280/49 -41°290/56 -51°
MKCused from 149 nm out; 26 nm from the line220/44250/28 18°250/18 13°240/12 6°280/24 -6°240/34 -18°260/47 -30°260/51 -40°270/58 -50°
SLNused from 249 nm out; 68 nm from the line210/53230/41 20°240/26 14°230/16 8°240/25 -7°240/35 -19°250/61 -30°260/65 -38°260/56 -49°
GLDused from 448 nm out; 61 nm from the line230/49230/42 15°220/26 8°240/18 -7°230/27 -21°240/62 -30°240/61 -35°250/57 -47°
PUBused from 598 nm out; 52 nm from the line230/25 13°230/32 6°220/44 -8°230/49 -21°240/70 -28°240/67 -34°240/58 -46°
GJTused from 747 nm out; 82 nm from the line210/43 7°230/45 1°220/49 -12°220/62 -22°220/59 -28°230/60 -33°220/55 -45°
BCEused from 946 nm out; 62 nm from the line220/27 -1°210/40 -13°220/54 -21°220/64 -30°220/64 -34°220/52 -44°
ELYused from 1096 nm out; 88 nm from the line200/39 3°210/27 -2°210/45 -15°220/56 -24°210/60 -28°210/63 -34°220/61 -43°
BIHused from 1195 nm out; 101 nm from the lineL/V240/7 1°190/13 -3°200/26 -16°210/43 -26°220/54 -28°220/51 -35°220/47 -43°
FATused from 1345 nm out; 26 nm from the line130/16160/20 5°190/28 -1°210/25 -5°220/27 -15°230/21 -26°220/42 -29°220/44 -35°220/44 -44°
SFOused from 1444 nm out; 75 nm from the line120/13090/14 5°040/14 -1°350/17 -5°360/42 -14°360/64 -23°350/38 -32°300/19 -37°250/18 -44°

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
STL St Louis, MO departure no report just now 617 ft
COU Columbia, MO 90 nm out, 4 nm southeast of the line, tower no report just now 889 ft
FOE Topeka, KS 249 nm out, 2 nm southeast of the line, tower no report just now 1,077 ft
MHK Manhattan, KS 299 nm out, 9 nm northeast of the line, tower no report just now 1,066 ft
OEL Oakley, KS 488 nm out, 8 nm north of the line no report just now 3,045 ft
COS Colorado Springs, CO 667 nm out, 3 nm southwest of the line, tower no report just now 6,187 ft
MTJ Montrose, CO 817 nm out, 7 nm southwest of the line no report just now 5,758 ft
HVE Hanksville, UT 956 nm out, 6 nm northeast of the line no report just now 4,453 ft
MLF Milford, UT 1056 nm out, 21 nm north of the line no report just now 5,042 ft
BIH Bishop, CA 1325 nm out, 8 nm north of the line no report just now 4,124 ft
FAT Fresno, CA 1394 nm out, 14 nm southeast of the line, tower no report just now 335 ft
MRY Monterey, CA destination no report just now 256 ft

The highest airport on this list sits at 6,187 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At MRY when you get there the forecast at the estimated arrival, 11:12 am PDT (18:12 UTC)

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

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

  • 6/7634 CENTRALIA, MO, Monday, October 12, 2026 UTC 17 nm from the route, 80 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZKC
  • 6/8770 COLORADO SPRINGS, CO, Saturday, October 10, 2026 through Monday, October 12, 2026 UTC 9 nm from the route, 687 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 12 October · ZDV
  • 6/8784 LAKE GEORGE, CO, Sunday, October 11, 2026 through Tuesday, October 13, 2026 UTC 8 nm from the route, 707 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV

Daylight

Sunset at STL 6:27 pm CDT (23:27 UTC), at MRY 6:35 pm PDT (01:35 UTC) (civil twilight ends 7:01 pm PDT (02:01 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 upper Mississippi valley
Radar now, the upper Mississippi valley · loop National Weather Service
Radar now, the southern Plains
Radar now, the southern Plains · loop National Weather Service
Radar now, the southern Rockies
Radar now, the southern Rockies · loop National Weather Service
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: St. Louis Lambert International, Monterey Regional.