St. Louis Lambert International to Louis Armstrong New Orleans International STL → MSY
526 nautical miles (605 statute miles) south on a straight line, true course 179°, about 180° magnetic at the departure end (variation 1W). At 120 knots that is 3 h 30 min at the quickest height in today's winds (39,000 ft, a 30-knot tailwind), arriving about 7:09 am CDT (12:09 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: 1,469 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
Not fetched just now.
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 5 forecast points nearest it (STL, CGI, MEM, JAN, MSY). 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 14 kt | +5 kt | 115 kt | 4 h 34 min | 8:13 am CDT (13:13 UTC) | |
| 6,500 ft | 250° at 14 kt | +4 kt | 16 °C | 116 kt | 4 h 32 min | 8:11 am CDT (13:11 UTC) |
| 8,500 ft | 260° at 13 kt | +2 kt | 13 °C | 118 kt | 4 h 27 min | 8:06 am CDT (13:06 UTC) |
| 10,500 ft | 260° at 12 kt | +1 kt | 9 °C | 119 kt | 4 h 25 min | 8:04 am CDT (13:04 UTC) |
| 12,500 ft | 270° at 12 kt | +1 kt | 5 °C | 119 kt | 4 h 25 min | 8:04 am CDT (13:04 UTC) |
| 14,500 ft | 270° at 15 kt | −1 kt | 1 °C | 121 kt | 4 h 21 min | 8:00 am CDT (13:00 UTC) |
| 16,500 ft | 280° at 18 kt | −2 kt | -3 °C | 122 kt | 4 h 19 min | 7:58 am CDT (12:58 UTC) |
| 18,000 ft FL180 | 280° at 20 kt | −3 kt | -6 °C | 123 kt | 4 h 17 min | 7:56 am CDT (12:56 UTC) |
| 24,000 ft FL240 | 290° at 22 kt | −7 kt | -17 °C | 127 kt | 4 h 09 min | 7:48 am CDT (12:48 UTC) |
| 30,000 ft FL300 | 300° at 36 kt | −20 kt | -30 °C | 140 kt | 3 h 45 min | 7:24 am CDT (12:24 UTC) |
| 34,000 ft FL340 | 310° at 43 kt | −26 kt | -40 °C | 146 kt | 3 h 36 min | 7:15 am CDT (12:15 UTC) |
| 39,000 ft FL390 | 320° at 41 kt | −30 kt | -51 °C | 150 kt | 3 h 30 min | 7:09 am CDT (12:09 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| STL | used from 0 nm out; 25 nm from the line | 250/26 | 240/21 15° | 240/22 11° | 250/23 6° | 270/28 -7° | 260/30 -19° | 280/52 -31° | 280/57 -40° | 300/57 -49° |
| CGI | used from 50 nm out; 41 nm from the line | 260/22 | 250/15 15° | 250/13 11° | 250/16 6° | 270/29 -7° | 280/30 -18° | 290/40 -31° | 290/55 -40° | 300/51 -51° |
| MEM | used from 149 nm out; 52 nm from the line | 250/19 | 260/19 17° | 270/20 12° | 270/16 6° | 270/21 -6° | 290/27 -17° | 300/37 -30° | 300/49 -40° | 310/40 -51° |
| JAN | used from 298 nm out; 65 nm from the line | 240/10 | 260/15 18° | 280/10 11° | 290/6 6° | 290/15 -5° | 300/15 -17° | 320/35 -30° | 330/38 -40° | 330/39 -51° |
| MSY | used from 446 nm out; 55 nm from the line | 150/9 | 140/8 18° | L/V 13° | L/V 6° | 320/15 -5° | 310/16 -16° | 320/32 -31° | 340/35 -40° | 350/34 -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 | no report just now | 617 ft | ||||
| PCD Perryville, MO | 50 nm out, 24 nm east of the line | no report just now | 372 ft | ||||
| FAM Farmington, MO | 60 nm out, 3 nm west of the line | no report just now | 945 ft | ||||
| POF Poplar Bluff, MO | 119 nm out, 1 nm northeast of the line | no report just now | 330 ft | ||||
| NQA Millington, TN | 208 nm out, 23 nm east of the line, tower | no report just now | 322 ft | ||||
| MEM Memphis, TN | 218 nm out, 17 nm east of the line, tower | no report just now | 340 ft | ||||
| MMS Marks, MS | 268 nm out, 4 nm south of the line | no report just now | 161 ft | ||||
| GWO Greenwood, MS | 317 nm out, 11 nm east of the line, tower | no report just now | 162 ft | ||||
| HKS Jackson, MS | 387 nm out, 4 nm northeast of the line, tower | no report just now | 341 ft | ||||
| MCB Mc Comb, MS | 456 nm out, 10 nm west of the line | no report just now | 413 ft | ||||
| HDC Hammond, LA | 496 nm out, 8 nm west of the line, tower | no report just now | 46 ft | ||||
| MSY New Orleans, LA | destination | no report just now | 3 ft |
The highest airport on this list sits at 945 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At MSY when you get there the forecast at the estimated arrival, 7:09 am CDT (12:09 UTC)
MSY has no terminal forecast; use the nearest airport that does.
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 MSY 6:33 pm CDT (23:33 UTC) (civil twilight ends 6:57 pm CDT (23:57 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, Louis Armstrong New Orleans International.