Des Moines International to Frederick W Smith Intl/Memphis Airport DSM → MEM
427 nautical miles (491 statute miles) southeast on a straight line, true course 155°, about 154° magnetic at the departure end (variation 1E). At 120 knots that is 2 h 42 min at the quickest height in today's winds (39,000 ft, a 38-knot tailwind), arriving about 6:02 am CDT (11:02 UTC), after sunset at the destination. Right now DSM is VFR, wind from the south-southwest (200°) at 9 knots; MEM is VFR, wind from the south (190°) at 6 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: 305 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 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 first 189 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 02:00–09:00 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 4 forecast points nearest it (DSM, COU, CGI, MEM). 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 | 230° at 27 kt | +6 kt | 114 kt | 3 h 45 min | 7:05 am CDT (12:05 UTC) | |
| 5,500 ft | 240° at 24 kt | +1 kt | 119 kt | 3 h 35 min | 6:55 am CDT (11:55 UTC) | |
| 7,500 ft | 250° at 20 kt | −2 kt | 13 °C | 122 kt | 3 h 30 min | 6:50 am CDT (11:50 UTC) |
| 9,500 ft | 260° at 16 kt | −5 kt | 10 °C | 125 kt | 3 h 25 min | 6:45 am CDT (11:45 UTC) |
| 11,500 ft | 270° at 14 kt | −6 kt | 7 °C | 126 kt | 3 h 23 min | 6:43 am CDT (11:43 UTC) |
| 13,500 ft | 270° at 15 kt | −7 kt | 3 °C | 127 kt | 3 h 22 min | 6:42 am CDT (11:42 UTC) |
| 15,500 ft | 270° at 18 kt | −8 kt | -1 °C | 128 kt | 3 h 20 min | 6:40 am CDT (11:40 UTC) |
| 17,500 ft | 270° at 21 kt | −9 kt | -5 °C | 129 kt | 3 h 19 min | 6:39 am CDT (11:39 UTC) |
| 18,000 ft FL180 | 270° at 21 kt | −9 kt | -6 °C | 129 kt | 3 h 19 min | 6:39 am CDT (11:39 UTC) |
| 24,000 ft FL240 | 280° at 27 kt | −14 kt | -18 °C | 134 kt | 3 h 11 min | 6:31 am CDT (11:31 UTC) |
| 30,000 ft FL300 | 280° at 35 kt | −19 kt | -32 °C | 139 kt | 3 h 04 min | 6:24 am CDT (11:24 UTC) |
| 34,000 ft FL340 | 280° at 47 kt | −28 kt | -41 °C | 148 kt | 2 h 53 min | 6:13 am CDT (11:13 UTC) |
| 39,000 ft FL390 | 290° at 52 kt | −38 kt | -51 °C | 158 kt | 2 h 42 min | 6:02 am CDT (11:02 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
| 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 | 230/40 | 250/33 17° | 250/18 12° | 240/17 5° | 260/28 -8° | 270/34 -19° | 260/41 -33° | 260/55 -41° | 270/62 -51° |
| COU | used from 99 nm out; 52 nm from the line | 230/31 | 230/30 15° | 260/16 11° | 270/14 6° | 260/24 -6° | 270/27 -18° | 270/37 -32° | 280/49 -41° | 290/56 -51° |
| CGI | used from 248 nm out; 80 nm from the line | 240/20 | 270/15 15° | 280/15 11° | 300/13 6° | 290/20 -6° | 280/24 -18° | 300/34 -32° | 300/47 -41° | 310/49 -51° |
| MEM | used from 347 nm out; 55 nm from the line | 230/19 | 260/16 15° | 270/17 12° | 300/13 6° | 300/15 -5° | 300/26 -18° | 300/34 -32° | 300/41 -40° | 310/46 -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 |
|---|---|---|---|---|---|---|---|
| DSM Des Moines, IA | departure | VFR Sky: a few clouds at 25,000 feet | from the south-southwest (200°) at 9 knots | 10+ mi | none | 957 ft | 2:54 am CDT (07:54 UTC) |
| CNC Chariton, IA | 30 nm out, 4 nm south of the line | VFR Sky: a few clouds at 3,600 feet | from the south (190°) at 9 knots | 10+ mi | none | 1,050 ft | 08:15 UTC |
| TVK Centerville, IA | 60 nm out, 10 nm east of the line | VFR | from the south (190°) at 8 knots | 10+ mi | none | 1,023 ft | 07:55 UTC |
| IRK Kirksville, MO | 99 nm out, 10 nm east of the line | reported, no category | from the south (190°) at 6 knots | 10+ mi | none | 966 ft | 07:55 UTC |
| MBY Moberly, MO | 139 nm out, 2 nm northwest of the line | VFR | from the south (190°) at 8 knots | 10+ mi | none | 866 ft | 08:15 UTC |
| COU Columbia, MO | 179 nm out, 8 nm west of the line, tower | VFR | from the south (190°) at 7 knots | 10+ mi | none | 889 ft | 07:54 UTC |
| VIH Rolla/Vichy, MO | 218 nm out, 7 nm southwest of the line | VFR | from the south-southwest (200°) at 5 knots | 10+ mi | none | 1,147 ft | 07:53 UTC |
| PYN Piedmont, MO | 298 nm out, 16 nm northeast of the line | no report just now | 466 ft | ||||
| PGR Paragould, AR | 357 nm out, 3 nm southeast of the line | no report just now | 290 ft | ||||
| NQA Millington, TN | 407 nm out, 13 nm east of the line, tower | VFR | calm | 10+ mi | none | 322 ft | 08:15 UTC |
| MEM Memphis, TN | destination | VFR Sky: a few clouds at 25,000 feet | from the south (190°) at 6 knots | 10+ mi | none | 340 ft | 2:54 am CDT (07:54 UTC) |
The highest airport on this list sits at 1,147 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At MEM when you get there the forecast at the estimated arrival, 6:02 am CDT (11:02 UTC)
Wind from the south at 4 knots, visibility more than 6 miles, a few clouds at 25,000 feet VFR
The whole forecast for MEM
- From Mon 1:00 am CDT (06:00 UTC): wind from the south at 4 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 west-southwest at 10 knots, gusting to 17, visibility more than 6 miles, clear skies
- From Mon 7:00 pm CDT (00:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, clear skies
The forecast for DSM, the departure
- From Mon 1:00 am CDT (06:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, low-level wind shear, scattered clouds at 25,000 feet
- From Mon 9:00 am CDT (14:00 UTC): wind from the south-southwest at 12 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 south-southwest at 12 knots, gusting to 19, visibility more than 6 miles, a few clouds at 25,000 feet
- From Mon 9:00 pm CDT (02:00 UTC): wind from the west-southwest at 10 knots, visibility more than 6 miles, a few clouds at 25,000 feet
- From Tue 12:00 am CDT (05:00 UTC): wind from the west-northwest at 8 knots, visibility more than 6 miles, clear skies
Temporary flight restrictions on the line or within 25 nm of it
- 6/7634 CENTRALIA, MO, Monday, October 12, 2026 UTC 2 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 MEM 6:29 pm CDT (23:29 UTC) (civil twilight ends 6:54 pm CDT (23:54 UTC)). At 120 knots the arrival at MEM is before sunrise there (7:03 am CDT (12:03 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, Frederick W Smith Intl/Memphis Airport.