Detroit Metro Wayne County to Duluth International DTW → DLH
469 nautical miles (540 statute miles) northwest on a straight line, true course 309°, about 316° magnetic at the departure end (variation 7W). At 120 knots that is 4 h 11 min at the quickest height in today's winds (4,500 ft, a 8-knot headwind), arriving about 1:07 am CDT (06:07 UTC), after sunset at the destination. Right now DTW is marginal VFR, wind from the west-northwest (290°) at 3 knots; DLH is VFR, wind from the south (180°) 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 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 20 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 DTW.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- A320 at 33,000 ft, 46 nm southwest, 8:36 pm EDT (00:36 UTC): moderate turbulence above 33,000 ft, remarks: zob. 60 nm along the route, 46 nm southwest of the line.
as filed, and in English
JXN UA /OV JXN280030/TM 0036/FL330/TP A320/TB OCNL MOD 330/RM ZOB
- Report
- a routine report filed through JXN
- Where
- 30 nm west (280°) of JXN
- Time
- 00:36 UTC
- Height
- at 33,000 ft
- Aircraft
- A320
- Turbulence
- occasional moderate at 33,000 ft
- Remarks
- zob
- C525 descending, 42 nm southwest, 9:41 pm EDT (01:41 UTC): a routine report with nothing remarked on. At the departure end, 42 nm southwest of the line.
as filed, and in English
TOL UA /OV TOL/TM 0141/FLDURD/TP C525/SK TOPS035 BKN010/WX 2SM
- Report
- a routine report filed through TOL
- Where
- over TOL
- Time
- 01:41 UTC
- Height
- during the descent
- Aircraft
- C525
- Sky
- TOPS035 BKN010
- Weather
- 2SM
- CRJ7 descending, 0 nm south, 9:01 pm EDT (01:01 UTC): overcast above 2,800 ft. At the departure end, 0 nm south of the line.
as filed, and in English
DTW UA /OV FINAL 3R /TM 0101/FLDURD/TP CRJ7/SK OVC 028
- Report
- a routine report filed through DTW
- Where
- final 3R
- Time
- 01:01 UTC
- Height
- during the descent
- Aircraft
- CRJ7
- Sky
- overcast from 2,800 ft
- A21N descending, 0 nm south, 8:22 pm EDT (00:22 UTC): overcast above 1,500 ft. At the departure end, 0 nm south of the line.
as filed, and in English
DTW UA /OV DTW/TM 0022/FLDURD/TP A21N/SK OVC015
- Report
- a routine report filed through DTW
- Where
- over DTW
- Time
- 00:22 UTC
- Height
- during the descent
- Aircraft
- A21N
- Sky
- overcast from 1,500 ft
- A320 climbing, 42 nm southwest, 8:14 pm EDT (00:14 UTC): overcast. At the departure end, 42 nm southwest of the line.
as filed, and in English
TOL UA /OV TOL/TM 0014/FLDURC/TP A320/SK B025 OVC T040
- Report
- a routine report filed through TOL
- Where
- over TOL
- Time
- 00:14 UTC
- Height
- during the climb
- Aircraft
- A320
- Sky
- B025 overcast T040
- CRJ9 descending, 0 nm south, 8:08 pm EDT (00:08 UTC): overcast above 1,100 ft, remarks: final runway 4L. At the departure end, 0 nm south of the line.
as filed, and in English
DTW UA /OV DTW/TM 0008/FLDURD/TP CRJ9/SK OVC 011/RM FINAL RY 4L
- Report
- a routine report filed through DTW
- Where
- over DTW
- Time
- 00:08 UTC
- Height
- during the descent
- Aircraft
- CRJ9
- Sky
- overcast from 1,100 ft
- Remarks
- final runway 4L
- E75S descending, 0 nm south, 7:01 pm EDT (23:01 UTC): a routine report with nothing remarked on. At the departure end, 0 nm south of the line.
as filed, and in English
DTW UA /OV RWY 3R/TM 2301/FLDURD/TP E75S/SK TOPS 020 BASES 010
- Report
- a routine report filed through DTW
- Where
- runway 3R
- Time
- 23:01 UTC
- Height
- during the descent
- Aircraft
- E75S
- Sky
- tops 2,000 ft bases 1,000 ft
- A320 descending, 42 nm southwest, 7:00 pm EDT (23:00 UTC): overcast from 1,600 ft to 3,500 ft, wind 350° at 9 knots. At the departure end, 42 nm southwest of the line.
as filed, and in English
TOL UA /OV TOL/TM 2300/FLDURD/TP A320/SK OVC016 TOP035/WV 35009KTS AT 023
- Report
- a routine report filed through TOL
- Where
- over TOL
- Time
- 23:00 UTC
- Height
- during the descent
- Aircraft
- A320
- Sky
- overcast from 1,600 ft, tops 3,500 ft
- Wind
- wind from 350° at 9 knots at at 2,300 ft
- E55P descending, 5 nm south, 7:00 pm EDT (23:00 UTC): a routine report with nothing remarked on. At the departure end, 5 nm south of the line.
as filed, and in English
YIP UA /OV KYIP/TM 2300/FLDURD/TP E55P/SK B015
- Report
- a routine report filed through YIP
- Where
- over KYIP
- Time
- 23:00 UTC
- Height
- during the descent
- Aircraft
- E55P
- Sky
- B015
- SR22 at 1,300 ft, 17 nm northeast, 9:25 pm EDT (01:25 UTC): a routine report with nothing remarked on. 20 nm along the route, 17 nm northeast of the line.
as filed, and in English
PTK UA /OV PTK270003/TM 0125/FL013/TP SR22/SK BASES 019 OVC
- Report
- a routine report filed through PTK
- Where
- 3 nm west (270°) of PTK
- Time
- 01:25 UTC
- Height
- at 1,300 ft
- Aircraft
- SR22
- Sky
- bases 1,900 ft overcast
- C550 at 2,300 ft, 19 nm northeast, 8:46 pm EDT (00:46 UTC): remarks: fis 4 mile final. 20 nm along the route, 19 nm northeast of the line.
as filed, and in English
PTK UA /OV 4W/TM 0046/FL023/TP C550/RM FIS 4 MILE FINAL
- Report
- a routine report filed through PTK
- Where
- 4W
- Time
- 00:46 UTC
- Height
- at 2,300 ft
- Aircraft
- C550
- Remarks
- fis 4 mile final
- GLF5 at 9,000 ft, 19 nm northeast, 7:13 pm EDT (23:13 UTC): overcast from 1,500 ft to 4,000 ft. 20 nm along the route, 19 nm northeast of the line.
as filed, and in English
PTK UA /OV PTK 7E/TM 2313/FL090/TP GLF5/SK OVC015-TOP040
- Report
- a routine report filed through PTK
- Where
- ptk 7E
- Time
- 23:13 UTC
- Height
- at 9,000 ft
- Aircraft
- GLF5
- Sky
- overcast from 1,500 ft, tops 4,000 ft
- PA32 at 1,500 ft, 19 nm northeast, 7:03 pm EDT (23:03 UTC): overcast above 1,500 ft. 20 nm along the route, 19 nm northeast of the line.
as filed, and in English
PTK UA /OV PTK 1W/TM 2303/FL015/TP PA32/SK OVC015
- Report
- a routine report filed through PTK
- Where
- ptk 1W
- Time
- 23:03 UTC
- Height
- at 1,500 ft
- Aircraft
- PA32
- Sky
- overcast from 1,500 ft
- E170 at 21,000 ft, 22 nm southwest, 9:07 pm EDT (01:07 UTC): light chop turbulence, remarks: during the climb zob. 50 nm along the route, 22 nm southwest of the line.
as filed, and in English
LAN UA /OV LAN180020/TM 0107/FL210/TP E170/TB LGHT CHOP/RM DURC ZOB
- Report
- a routine report filed through LAN
- Where
- 20 nm south (180°) of LAN
- Time
- 01:07 UTC
- Height
- at 21,000 ft
- Aircraft
- E170
- Turbulence
- lght chop
- Remarks
- during the climb zob
4 more routine reports are on the map.
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 (CLE, MKG, GRB, DLH). 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 | 260° at 12 kt | +8 kt | 112 kt | 4 h 11 min | 1:07 am CDT (06:07 UTC) | |
| 6,500 ft | 270° at 14 kt | +11 kt | 14 °C | 109 kt | 4 h 18 min | 1:14 am CDT (06:14 UTC) |
| 8,500 ft | 270° at 18 kt | +16 kt | 11 °C | 104 kt | 4 h 31 min | 1:27 am CDT (06:27 UTC) |
| 10,500 ft | 280° at 16 kt | +15 kt | 7 °C | 105 kt | 4 h 28 min | 1:24 am CDT (06:24 UTC) |
| 12,500 ft | 290° at 15 kt | +14 kt | 2 °C | 106 kt | 4 h 25 min | 1:21 am CDT (06:21 UTC) |
| 14,500 ft | 290° at 18 kt | +17 kt | -2 °C | 103 kt | 4 h 33 min | 1:29 am CDT (06:29 UTC) |
| 16,500 ft | 290° at 21 kt | +20 kt | -7 °C | 100 kt | 4 h 41 min | 1:37 am CDT (06:37 UTC) |
| 18,000 ft FL180 | 290° at 24 kt | +23 kt | -10 °C | 97 kt | 4 h 50 min | 1:46 am CDT (06:46 UTC) |
| 24,000 ft FL240 | 300° at 34 kt | +34 kt | -22 °C | 86 kt | 5 h 27 min | 2:23 am CDT (07:23 UTC) |
| 30,000 ft FL300 | 310° at 47 kt | +48 kt | -37 °C | 72 kt | 6 h 31 min | 3:27 am CDT (08:27 UTC) |
| 34,000 ft FL340 | 300° at 49 kt | +49 kt | -47 °C | 71 kt | 6 h 36 min | 3:32 am CDT (08:32 UTC) |
| 39,000 ft FL390 | 290° at 67 kt | +65 kt | -51 °C | 55 kt | 8 h 32 min | 5:28 am CDT (10:28 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| CLE | used from 0 nm out; 108 nm from the line | 340/5 | 320/13 14° | 300/12 8° | 310/10 2° | 310/14 -10° | 340/14 -23° | 320/27 -35° | 260/28 -40° | 250/36 -48° |
| MKG | used from 50 nm out; 69 nm from the line | 250/5 | 320/10 15° | 310/19 9° | 320/21 3° | 310/23 -10° | 330/37 -22° | 330/51 -38° | 320/44 -47° | 300/60 -49° |
| GRB | used from 200 nm out; 31 nm from the line | 240/24 | 260/18 16° | 270/20 11° | 290/14 4° | 280/24 -9° | 300/34 -21° | 310/51 -38° | 310/54 -48° | 300/71 -51° |
| DLH | used from 349 nm out; 95 nm from the line | 240/6 | 230/22 15° | 250/28 11° | 230/22 4° | 270/33 -12° | 280/47 -21° | 280/59 -37° | 290/65 -47° | 290/88 -55° |
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 |
|---|---|---|---|---|---|---|---|
| DTW Detroit, MI | departure | marginal VFR Sky: a few clouds at 1,200 feet, overcast at 2,000 feet | from the west-northwest (290°) at 3 knots | 8 mi | 2,000 ft | 645 ft | 9:53 pm EDT (01:53 UTC) |
| PTK Pontiac, MI | 20 nm out, 19 nm northeast of the line, tower | marginal VFR Sky: overcast at 1,300 feet | calm | 10+ mi | 1,300 ft | 980 ft | 01:53 UTC |
| LAN Lansing, MI | 60 nm out, 9 nm southwest of the line, tower | marginal VFR Sky: a broken layer at 1,200 feet | from the southwest (220°) at 4 knots | 10+ mi | 1,200 ft | 860 ft | 01:53 UTC |
| RQB Big Rapids, MI | 130 nm out, 12 nm northeast of the line | VFR | from the south-southeast (160°) at 3 knots | 10+ mi | none | 994 ft | 01:35 UTC |
| LDM Ludington, MI | 170 nm out, 1 nm west of the line | VFR | from the south-southwest (200°) at 7 knots | 10+ mi | none | 646 ft | 01:35 UTC |
| GRB Green Bay, WI | 249 nm out, 20 nm southwest of the line, tower | VFR | from the south (190°) at 6 knots | 10+ mi | none | 695 ft | 01:53 UTC |
| AIG Antigo, WI | 309 nm out, 12 nm south of the line | VFR | from the south (190°) at 4 knots | 10+ mi | none | 1,523 ft | 01:35 UTC |
| RHI Rhinelander, WI | 339 nm out, 6 nm east of the line | VFR | from the south-southwest (210°) at 6 knots | 10+ mi | none | 1,623 ft | 01:53 UTC |
| PKF Park Falls, WI | 379 nm out, 4 nm southwest of the line | no report just now | 1,501 ft | ||||
| OLG Solon Springs, WI | 439 nm out, 18 nm southwest of the line | VFR | from the northeast (040°) at 3 knots | 10+ mi | none | 1,102 ft | 01:40 UTC |
| DLH Duluth, MN | destination | VFR Sky: a broken layer at 12,000 feet | from the south (180°) at 4 knots | 10+ mi | 12,000 ft | 1,427 ft | 7:55 pm CDT (00:55 UTC) |
The highest airport on this list sits at 1,623 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At DLH when you get there the forecast at the estimated arrival, 1:07 am CDT (06:07 UTC)
Wind from the east at 11 knots, gusting to 20, visibility more than 6 miles, overcast at 1,200 feet marginal VFR
The whole forecast for DLH
- From Sun 7:00 pm CDT (00:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 12,000 feet
- From Mon 12:00 am CDT (05:00 UTC): wind from the east at 11 knots, gusting to 20, visibility more than 6 miles, overcast at 1,200 feet
- From Mon 4:00 am CDT (09:00 UTC): wind from the east at 15 knots, gusting to 22, visibility more than 6 miles, overcast at 600 feet
- From Mon 6:00 am CDT (11:00 UTC): wind from the east at 16 knots, gusting to 24, visibility 4 miles, mist, overcast at 300 feet
- From Mon 12:00 pm CDT (17:00 UTC): wind from the east-northeast at 15 knots, gusting to 25, visibility more than 6 miles, overcast at 300 feet
- From Mon 5:00 pm CDT (22:00 UTC): wind from the east-northeast at 15 knots, gusting to 25, visibility 6 miles, light rain showers, overcast at 400 feet
The forecast for DTW, the departure
- From Sun 8:00 pm EDT (00:00 UTC): wind from the northeast at 4 knots, visibility more than 6 miles, a broken layer at 600 feet, overcast at 1,400 feet
- From Sun 11:00 pm EDT (03:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 1,400 feet
- From Mon 3:00 am EDT (07:00 UTC): wind from the south-southwest at 4 knots, visibility more than 6 miles, a broken layer at 25,000 feet
- At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): visibility 2 miles, mist, a broken layer at 400 feet
- From Mon 10:00 am EDT (14:00 UTC): wind from the southwest at 11 knots, gusting to 22, visibility more than 6 miles, a broken layer at 25,000 feet
- From Mon 8:00 pm EDT (00:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, scattered clouds at 9,000 feet, a broken layer at 20,000 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 DTW 6:56 pm EDT (22:56 UTC), at DLH 6:27 pm CDT (23:27 UTC) (civil twilight ends 6:58 pm CDT (23:58 UTC)). At 120 knots the arrival at DLH is before sunrise there (7:22 am CDT (12:22 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: Detroit Metro Wayne County, Duluth International.
