Des Moines International to Gulfport-Biloxi International DSM → GPT
704 nautical miles (810 statute miles) south on a straight line, true course 160°, about 159° magnetic at the departure end (variation 1E). At 120 knots that is 4 h 33 min at the quickest height in today's winds (39,000 ft, a 35-knot tailwind), arriving about 10:59 am CDT (15:59 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: 2 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 2W: 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 228 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 DSM.
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 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 7 forecast points nearest it (DSM, COU, SGF, CGI, MEM, JAN, MOB). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 3,500 ft | 250° at 23 kt | +1 kt | 119 kt | 5 h 55 min | 12:21 pm CDT (17:21 UTC) | |
| 5,500 ft | 260° at 17 kt | −2 kt | 122 kt | 5 h 46 min | 12:12 pm CDT (17:12 UTC) | |
| 7,500 ft | 260° at 14 kt | −2 kt | 14 °C | 122 kt | 5 h 46 min | 12:12 pm CDT (17:12 UTC) |
| 9,500 ft | 260° at 12 kt | −2 kt | 11 °C | 122 kt | 5 h 46 min | 12:12 pm CDT (17:12 UTC) |
| 11,500 ft | 260° at 13 kt | −2 kt | 7 °C | 122 kt | 5 h 46 min | 12:12 pm CDT (17:12 UTC) |
| 13,500 ft | 260° at 15 kt | −3 kt | 3 °C | 123 kt | 5 h 43 min | 12:09 pm CDT (17:09 UTC) |
| 15,500 ft | 260° at 17 kt | −4 kt | -1 °C | 124 kt | 5 h 41 min | 12:07 pm CDT (17:07 UTC) |
| 17,500 ft | 270° at 20 kt | −6 kt | -5 °C | 126 kt | 5 h 35 min | 12:01 pm CDT (17:01 UTC) |
| 18,000 ft FL180 | 270° at 20 kt | −6 kt | -6 °C | 126 kt | 5 h 35 min | 12:01 pm CDT (17:01 UTC) |
| 24,000 ft FL240 | 280° at 26 kt | −11 kt | -18 °C | 131 kt | 5 h 22 min | 11:48 am CDT (16:48 UTC) |
| 30,000 ft FL300 | 290° at 41 kt | −26 kt | -31 °C | 146 kt | 4 h 49 min | 11:15 am CDT (16:15 UTC) |
| 34,000 ft FL340 | 290° at 47 kt | −32 kt | -40 °C | 152 kt | 4 h 38 min | 11:04 am CDT (16:04 UTC) |
| 39,000 ft FL390 | 300° at 45 kt | −35 kt | -50 °C | 155 kt | 4 h 33 min | 10:59 am CDT (15:59 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DSM | used from 0 nm out; 25 nm from the line | 250/47 | 260/25 20° | 240/19 11° | 240/31 5° | 250/26 -9° | 260/38 -20° | 260/47 -34° | 270/58 -37° | 270/61 -47° |
| COU | used from 99 nm out; 53 nm from the line | 250/36 | 260/14 16° | 250/5 12° | 260/12 6° | 260/24 -7° | 260/35 -19° | 280/58 -31° | 280/62 -40° | 290/60 -49° |
| SGF | used from 248 nm out; 79 nm from the line | 230/37 | 260/20 15° | 250/16 13° | 250/15 8° | 260/28 -7° | 250/31 -17° | 280/59 -31° | 280/59 -39° | 290/55 -50° |
| CGI | used from 297 nm out; 99 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 347 nm out; 66 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 496 nm out; 61 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° |
| MOB | used from 645 nm out; 55 nm from the line | L/V | L/V 18° | 020/8 11° | L/V 6° | 330/12 -5° | 330/23 -17° | 330/30 -32° | 350/39 -41° | 340/40 -53° |
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 |
|---|---|---|---|---|---|---|---|
| DSM Des Moines, IA | departure | no report just now | 957 ft | ||||
| CNC Chariton, IA | 30 nm out, 5 nm southeast of the line | no report just now | 1,050 ft | ||||
| MBY Moberly, MO | 139 nm out, 12 nm northeast of the line | no report just now | 866 ft | ||||
| JEF Jefferson City, MO | 188 nm out, 7 nm east of the line, tower | no report just now | 549 ft | ||||
| TBN Fort Leonard Wood, MO | 238 nm out, 9 nm west of the line, tower | no report just now | 1,159 ft | ||||
| MNF Mountain View, MO | 288 nm out, 4 nm west of the line | no report just now | 1,182 ft | ||||
| FCY Forrest City, AR | 416 nm out, 2 nm southeast of the line | no report just now | 249 ft | ||||
| CKM Clarksdale, MS | 456 nm out, 3 nm southeast of the line | no report just now | 173 ft | ||||
| GWO Greenwood, MS | 516 nm out, 7 nm northeast of the line, tower | no report just now | 162 ft | ||||
| JAN Jackson, MS | 575 nm out, 16 nm southwest of the line, tower | no report just now | 346 ft | ||||
| HBG Hattiesburg, MS | 654 nm out, 7 nm northeast of the line | no report just now | 150 ft | ||||
| GPT Gulfport, MS | destination | no report just now | 28 ft |
The highest airport on this list sits at 1,182 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At GPT when you get there the forecast at the estimated arrival, 10:59 am CDT (15:59 UTC)
GPT 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, 159 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZKC
Daylight
Sunset at DSM 6:38 pm CDT (23:38 UTC), at GPT 6:28 pm CDT (23:28 UTC) (civil twilight ends 6:52 pm CDT (23:52 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: Des Moines International, Gulfport-Biloxi International.