Duluth International to Frederick W Smith Intl/Memphis Airport DLH → MEM
715 nautical miles (823 statute miles) south on a straight line, true course 171°, about 172° magnetic at the departure end (variation 1W). At 120 knots that is 4 h 50 min at the quickest height in today's winds (39,000 ft, a 28-knot tailwind), arriving about 1:58 pm CDT (18:58 UTC). Right now DLH is low IFR, wind from the east (080°) at 15 knots, gusting to 25; MEM is VFR, wind from the southwest (220°) at 4 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
- AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 50 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 DLH.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- E545 at 1,700 ft, 2 nm south, 8:44 am CDT (13:44 UTC): a routine report with nothing remarked on. At the departure end, 2 nm south of the line.
as filed, and in English
DLH UA /OV DLH/TM 1344/FL017/TP E545/SK B017 T 035
- Report
- a routine report filed through DLH
- Where
- over DLH
- Time
- 13:44 UTC
- Height
- at 1,700 ft
- Aircraft
- E545
- Sky
- B017 T at 3,500 ft
- E75L at 300 ft, 2 nm south, 8:12 am CDT (13:12 UTC): a routine report with nothing remarked on. At the departure end, 2 nm south of the line.
as filed, and in English
DLH UA /OV DLH/TM 1312/FL003/TP E75L/SK B003 T037
- Report
- a routine report filed through DLH
- Where
- over DLH
- Time
- 13:12 UTC
- Height
- at 300 ft
- Aircraft
- E75L
- Sky
- B003 T037
- CRJ9 at 1,600 ft, 2 nm south, 7:26 am CDT (12:26 UTC): overcast from 1,600 ft to 3,500 ft, 14 °C, remarks: during the climb. At the departure end, 2 nm south of the line.
as filed, and in English
DLH UA /OV DLH/TM 1226/FL016/TP CRJ9/SK 016OVC035/TA 14/RM DURC
- Report
- a routine report filed through DLH
- Where
- over DLH
- Time
- 12:26 UTC
- Height
- at 1,600 ft
- Aircraft
- CRJ9
- Sky
- 016OVC035
- Temperature
- 14 °C
- Remarks
- during the climb
- BE20 at 1,600 ft, 8 nm north, 6:45 am CDT (11:45 UTC): a routine report with nothing remarked on. At the departure end, 8 nm north of the line.
as filed, and in English
DLH UA /OV 10N DLH /TM 1145/FL016/TP BE20/SK B016 T035
- Report
- a routine report filed through DLH
- Where
- 10N dlh
- Time
- 11:45 UTC
- Height
- at 1,600 ft
- Aircraft
- BE20
- Sky
- B016 T035
- B752 at 34,000 ft, 9 nm east, 7:23 am CDT (12:23 UTC): light chop turbulence. 258 nm along the route, 9 nm east of the line.
as filed, and in English
DBQ UA /OV DBQ300020/TM 1223/FL340/TP B752/TB OCNL LGT CHOP
- Report
- a routine report filed through DBQ
- Where
- 20 nm northwest (300°) of DBQ
- Time
- 12:23 UTC
- Height
- at 34,000 ft
- Aircraft
- B752
- Turbulence
- occasional light chop
- A321 at 32,000 ft, 25 nm west, 7:25 am CDT (12:25 UTC): light chop turbulence. 288 nm along the route, 25 nm west of the line.
as filed, and in English
CID UA /OV CID360010/TM 1225/FL320/TP A321/TB INTMT LGT CHOP CONS LGT CHOP
- Report
- a routine report filed through CID
- Where
- 10 nm north (360°) of CID
- Time
- 12:25 UTC
- Height
- at 32,000 ft
- Aircraft
- A321
- Turbulence
- intermittent light chop continuous light chop
- BE33 at 4,500 ft, 41 nm southwest, 8:05 am CDT (13:05 UTC): clear from 4,500 ft to 60,000 ft, remarks: ZME65. At the destination end, 41 nm southwest of the line.
as filed, and in English
UTA UA /OV UTA180015/TM 1305/FL045/TP BE33/SK SKC/RM ZME65
- Report
- a routine report filed through UTA
- Where
- 15 nm south (180°) of UTA
- Time
- 13:05 UTC
- Height
- at 4,500 ft
- Aircraft
- BE33
- Sky
- clear
- Remarks
- ZME65
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 9 forecast points nearest it (DLH, MSP, LSE, DBQ, BRL, SPI, STL, 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 | 250° at 20 kt | +4 kt | 116 kt | 6 h 10 min | 3:18 pm CDT (20:18 UTC) | |
| 5,500 ft | 250° at 19 kt | +4 kt | 116 kt | 6 h 10 min | 3:18 pm CDT (20:18 UTC) | |
| 7,500 ft | 250° at 20 kt | +5 kt | 13 °C | 115 kt | 6 h 13 min | 3:21 pm CDT (20:21 UTC) |
| 9,500 ft | 250° at 21 kt | +5 kt | 10 °C | 115 kt | 6 h 13 min | 3:21 pm CDT (20:21 UTC) |
| 11,500 ft | 250° at 22 kt | +3 kt | 6 °C | 117 kt | 6 h 07 min | 3:15 pm CDT (20:15 UTC) |
| 13,500 ft | 260° at 23 kt | 0 | 2 °C | 120 kt | 5 h 58 min | 3:06 pm CDT (20:06 UTC) |
| 15,500 ft | 270° at 24 kt | −3 kt | -3 °C | 123 kt | 5 h 49 min | 2:57 pm CDT (19:57 UTC) |
| 17,500 ft | 280° at 26 kt | −6 kt | -7 °C | 126 kt | 5 h 40 min | 2:48 pm CDT (19:48 UTC) |
| 18,000 ft FL180 | 280° at 26 kt | −7 kt | -8 °C | 127 kt | 5 h 38 min | 2:46 pm CDT (19:46 UTC) |
| 24,000 ft FL240 | 280° at 32 kt | −8 kt | -20 °C | 128 kt | 5 h 35 min | 2:43 pm CDT (19:43 UTC) |
| 30,000 ft FL300 | 280° at 41 kt | −11 kt | -34 °C | 131 kt | 5 h 27 min | 2:35 pm CDT (19:35 UTC) |
| 34,000 ft FL340 | 280° at 52 kt | −17 kt | -41 °C | 137 kt | 5 h 13 min | 2:21 pm CDT (19:21 UTC) |
| 39,000 ft FL390 | 290° at 56 kt | −28 kt | -49 °C | 148 kt | 4 h 50 min | 1:58 pm CDT (18:58 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DLH | used from 0 nm out; 25 nm from the line | 090/31 | 250/7 14° | 250/26 11° | 250/36 4° | 280/36 -11° | 290/35 -22° | 300/39 -38° | 280/41 -44° | 280/66 -49° |
| MSP | used from 50 nm out; 70 nm from the line | 250/12 | 250/17 17° | 240/26 12° | 250/26 5° | 280/26 -9° | 280/32 -22° | 270/37 -38° | 280/47 -41° | 280/55 -48° |
| LSE | used from 99 nm out; 59 nm from the line | 250/25 | 240/21 17° | 240/28 11° | 250/28 5° | 280/24 -10° | 280/31 -21° | 260/35 -37° | 270/45 -43° | 280/59 -47° |
| DBQ | used from 248 nm out; 24 nm from the line | 250/27 | 260/23 17° | 240/26 10° | 260/30 4° | 280/26 -9° | 280/36 -21° | 270/41 -36° | 280/52 -41° | 290/67 -48° |
| BRL | used from 298 nm out; 44 nm from the line | 250/32 | 250/19 17° | 260/15 11° | 270/16 3° | 290/23 -7° | 260/42 -20° | 270/52 -34° | 280/63 -39° | 290/64 -48° |
| SPI | used from 397 nm out; 51 nm from the line | 260/28 | 250/22 15° | 250/14 9° | 260/20 6° | 280/27 -7° | 280/34 -19° | 280/48 -32° | 280/59 -41° | 300/60 -49° |
| STL | used from 447 nm out; 23 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 547 nm out; 40 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 646 nm out; 45 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° |
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 |
|---|---|---|---|---|---|---|---|
| DLH Duluth, MN | departure | low IFR Sky: overcast at 300 feet Weather: light drizzle, mist | from the east (080°) at 15 knots, gusting to 25 | 0.75 mi | 300 ft | 1,427 ft | 8:55 am CDT (13:55 UTC) |
| SSQ Shell Lake, WI | 70 nm out, 2 nm north of the line | no report just now | 1,233 ft | ||||
| EAU Eau Claire, WI | 119 nm out, 12 nm east of the line, tower | VFR | from the south (190°) at 5 knots | 10+ mi | none | 913 ft | 13:56 UTC |
| LSE La Crosse, WI | 179 nm out, 13 nm east of the line, tower | VFR | from the south-southwest (200°) at 10 knots | 10+ mi | none | 655 ft | 13:53 UTC |
| DBQ Dubuque, IA | 268 nm out, 25 nm east of the line, tower | VFR | from the south-southwest (200°) at 11 knots | 10+ mi | none | 1,076 ft | 13:53 UTC |
| CID Cedar Rapids, IA | 298 nm out, 24 nm west of the line, tower | VFR | from the south (190°) at 9 knots | 10+ mi | none | 869 ft | 13:52 UTC |
| BRL Burlington, IA | 368 nm out, 8 nm west of the line | VFR | from the south-southwest (210°) at 11 knots | 10+ mi | none | 698 ft | 13:53 UTC |
| SUS St Louis, MO | 497 nm out, 4 nm west of the line, tower | VFR | calm | 10+ mi | none | 463 ft | 13:54 UTC |
| CPS Cahokia/St Louis, IL | 507 nm out, 19 nm east of the line, tower | VFR | from the southwest (220°) at 4 knots | 10+ mi | none | 412 ft | 13:53 UTC |
| POF Poplar Bluff, MO | 606 nm out, 5 nm southwest of the line | VFR | from the south-southwest (210°) at 4 knots | 10+ mi | none | 330 ft | 13:53 UTC |
| NQA Millington, TN | 696 nm out, 8 nm east of the line, tower | VFR | calm | 10+ mi | none | 322 ft | 12:55 UTC |
| MEM Memphis, TN | destination | VFR Sky: a few clouds at 25,000 feet | from the southwest (220°) at 4 knots | 10+ mi | none | 340 ft | 8:54 am CDT (13:54 UTC) |
The highest airport on this list sits at 1,427 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, 1:58 pm CDT (18:58 UTC)
Wind from the west-southwest at 10 knots, gusting to 17, visibility more than 6 miles, clear skies VFR
The whole forecast for MEM
- From Mon 7:00 am CDT (12:00 UTC): wind from the south at 5 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 8:00 pm CDT (01:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, clear skies
The forecast for DLH, the departure
- From Mon 9:00 am CDT (14:00 UTC): wind from the east at 15 knots, gusting to 26, visibility 1½ miles, light drizzle, mist, overcast at 400 feet
- From Mon 5:00 pm CDT (22:00 UTC): wind from the east-northeast at 16 knots, gusting to 27, visibility 4 miles, light rain showers, mist, overcast at 200 feet
- 30% chance between Mon 5:00 pm CDT (22:00 UTC) and 7:00 pm CDT (00:00 UTC): visibility 3 miles, light thunderstorms with rain, a broken layer at 400 feet (thunderheads), overcast at 800 feet
- From Mon 11:00 pm CDT (04:00 UTC): wind from the east-northeast at 14 knots, gusting to 23, visibility more than 6 miles, showers nearby, overcast at 300 feet
- From Tue 1:00 am CDT (06:00 UTC): wind from the northeast at 11 knots, gusting to 18, visibility more than 6 miles, overcast at 300 feet
- From Tue 6:00 am CDT (11:00 UTC): wind from the north at 5 knots, visibility more than 6 miles, overcast at 500 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 DLH 6:27 pm CDT (23:27 UTC), at MEM 6:29 pm CDT (23:29 UTC) (civil twilight ends 6:54 pm CDT (23:54 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: Duluth International, Frederick W Smith Intl/Memphis Airport.
