St. Louis Lambert International to Claremore Regional STL → GCM
284 nautical miles (327 statute miles) southwest on a straight line, true course 240°, about 241° magnetic at the departure end (variation 1W). At 120 knots that is 2 h 44 min at the quickest height in today's winds (18,000 ft, a 16-knot headwind), arriving about 10:49 pm CDT (03:49 UTC), after sunset at the destination. Right now STL is VFR, wind from the southeast (130°) at 7 knots; GCM is VFR, wind from the south (170°) at 7 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
No SIGMET or AIRMET covers any part of this route right now.
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
No pilot reports within 50 nautical miles of the line in the last three hours.
Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 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 4 forecast points nearest it (STL, COU, SGF, TUL). 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 | 210° at 20 kt | +18 kt | 102 kt | 2 h 47 min | 10:52 pm CDT (03:52 UTC) | |
| 6,500 ft | 220° at 21 kt | +20 kt | 15 °C | 100 kt | 2 h 50 min | 10:55 pm CDT (03:55 UTC) |
| 8,500 ft | 240° at 25 kt | +25 kt | 12 °C | 95 kt | 2 h 59 min | 11:04 pm CDT (04:04 UTC) |
| 10,500 ft | 250° at 25 kt | +24 kt | 9 °C | 96 kt | 2 h 58 min | 11:03 pm CDT (04:03 UTC) |
| 12,500 ft | 260° at 23 kt | +22 kt | 6 °C | 98 kt | 2 h 54 min | 10:59 pm CDT (03:59 UTC) |
| 14,500 ft | 270° at 22 kt | +20 kt | 2 °C | 100 kt | 2 h 50 min | 10:55 pm CDT (03:55 UTC) |
| 16,500 ft | 270° at 21 kt | +17 kt | -3 °C | 103 kt | 2 h 45 min | 10:50 pm CDT (03:50 UTC) |
| 18,000 ft FL180 | 280° at 21 kt | +16 kt | -6 °C | 104 kt | 2 h 44 min | 10:49 pm CDT (03:49 UTC) |
| 24,000 ft FL240 | 280° at 23 kt | +16 kt | -18 °C | 104 kt | 2 h 44 min | 10:49 pm CDT (03:49 UTC) |
| 30,000 ft FL300 | 300° at 37 kt | +21 kt | -31 °C | 99 kt | 2 h 52 min | 10:57 pm CDT (03:57 UTC) |
| 34,000 ft FL340 | 300° at 41 kt | +21 kt | -41 °C | 99 kt | 2 h 52 min | 10:57 pm CDT (03:57 UTC) |
| 39,000 ft FL390 | 300° at 53 kt | +26 kt | -52 °C | 94 kt | 3 h 01 min | 11:06 pm CDT (04:06 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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; 24 nm from the line | 210/13 | 260/16 17° | 270/21 10° | 280/24 5° | 310/20 -7° | 320/22 -18° | 320/44 -33° | 320/59 -43° | 310/69 -51° |
| COU | used from 49 nm out; 47 nm from the line | 210/16 | 220/19 15° | 240/33 10° | 250/29 7° | 280/21 -6° | 280/19 -18° | 300/34 -31° | 300/40 -42° | 300/60 -52° |
| SGF | used from 98 nm out; 47 nm from the line | 210/21 | 210/21 16° | 240/28 12° | 260/24 7° | 280/21 -6° | 280/26 -18° | 290/38 -31° | 290/37 -41° | 300/49 -52° |
| TUL | used from 245 nm out; 40 nm from the line | 200/27 | 210/28 15° | 240/24 13° | 250/19 8° | 250/28 -6° | 260/25 -16° | 270/34 -30° | 280/41 -39° | 280/41 -52° |
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 25,000 feet | from the southeast (130°) at 7 knots | 10+ mi | none | 617 ft | 7:51 pm CDT (00:51 UTC) |
| FYG Washington, MO | 29 nm out, 6 nm northwest of the line | reported, no category | from the east-southeast (110°) at 6 knots | 4 mi | none | 487 ft | 21:55 UTC |
| VIH Rolla/Vichy, MO | 78 nm out, 3 nm northeast of the line | VFR | from the south (190°) at 3 knots | 10+ mi | none | 1,147 ft | 00:53 UTC |
| TBN Fort Leonard Wood, MO | 98 nm out, 11 nm south of the line, tower | VFR | from the south (170°) at 6 knots | 10+ mi | none | 1,159 ft | 00:55 UTC |
| LBO Lebanon, MO | 128 nm out, 3 nm southeast of the line | VFR | from the south-southwest (210°) at 5 knots | 10+ mi | none | 1,320 ft | 23:35 UTC |
| SGF Springfield, MO | 167 nm out, 5 nm south of the line, tower | VFR | from the south-southwest (210°) at 8 knots | 10+ mi | none | 1,268 ft | 00:52 UTC |
| JLN Joplin, MO | 216 nm out, 18 nm northwest of the line, tower | VFR | from the south (180°) at 7 knots | 10+ mi | none | 977 ft | 00:53 UTC |
| GMJ Grove, OK | 245 nm out, 4 nm southeast of the line | VFR | from the south (170°) at 4 knots | 10+ mi | none | 831 ft | 00:55 UTC |
| GCM Claremore, OK | destination | VFR | from the south (170°) at 7 knots | 10+ mi | none | 733 ft | 7:55 pm CDT (00:55 UTC) |
The highest airport on this list sits at 1,320 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At GCM when you get there the forecast at the estimated arrival, 10:49 pm CDT (03:49 UTC)
GCM has no terminal forecast; use the nearest airport that does.
The forecast for STL, the departure
- From Sun 7:00 pm CDT (00:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, clear skies
- From Mon 1:00 am CDT (06:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, a few clouds at 25,000 feet
- From Mon 11:00 am CDT (16:00 UTC): wind from the southwest at 12 knots, gusting to 20, visibility more than 6 miles, a few clouds at 25,000 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 STL 6:27 pm CDT (23:27 UTC), at GCM 6:50 pm CDT (23:50 UTC) (civil twilight ends 7:15 pm CDT (00:15 UTC)). At 120 knots the arrival at GCM is after sunset there (6:51 pm CDT (23:51 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
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, Claremore Regional.