Willow Run Airport to Mahlon Sweet Field YIP → EUG
1,724 nautical miles (1,984 statute miles) west on a straight line, true course 287°, about 293° magnetic at the departure end (variation 6W). At 120 knots that is 15 h 58 min at the quickest height in today's winds (6,500 ft, a 12-knot headwind), arriving about 9:17 pm PDT (04:17 UTC), after sunset at the destination. Right now YIP is low IFR, wind from the south-southwest (210°) at 11 knots; EUG is VFR, wind from the south-southwest (200°) at 5 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: 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
- SIGMET C18C: thunderstorms (a convective SIGMET) up to 36,000 ft, moving from the southwest at 40 knots, until 9:55 am EDT (13:55 UTC). Near the route, 737 nm along the route.
as issued
WSUS32 KKCI 121155 MKCC WST 121155 CONVECTIVE SIGMET 18C VALID UNTIL 1355Z SD ND FROM 50NE BIS-70W FAR-40N PIR-40N DPR-50NE BIS AREA TS MOV FROM 22040KT. TOPS TO FL360.
- 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 60 nm of the route.
- 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 route from 528 to 1425 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 967 to 1236 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1046 to 1594 nm out.
- AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the route from 1266 to 1455 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the route from 1395 to 1714 nm out.
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 YIP.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B722 at 6,000 ft, 15 nm south, 8:08 am EDT (12:08 UTC): a routine report with nothing remarked on. At the departure end, 15 nm south of the line.
as filed, and in English
DTW UA /OV DXO210015/TM 1208/FL060/TP B722/SK TOPS 016
- Report
- a routine report filed through DTW
- Where
- 15 nm southwest (210°) of DXO
- Time
- 12:08 UTC
- Height
- at 6,000 ft
- Aircraft
- B722
- Sky
- tops 1,600 ft
- BE58 climbing, 41 nm south, 7:34 am EDT (11:34 UTC): a routine report with nothing remarked on. At the departure end, 41 nm south of the line.
as filed, and in English
TOL UA /OV TOL/TM 1134/FLDURC/TP BE58/SK B002 T018
- Report
- a routine report filed through TOL
- Where
- over TOL
- Time
- 11:34 UTC
- Height
- during the climb
- Aircraft
- BE58
- Sky
- B002 T018
- B717 at 400 ft, 8 nm east, 7:23 am EDT (11:23 UTC): remarks: bases 400 ft during the descent. At the departure end, 8 nm east of the line.
as filed, and in English
DTW UA /OV DTW/TM 1123/FL004/TP B717/RM BASES 004 DURD
- Report
- a routine report filed through DTW
- Where
- over DTW
- Time
- 11:23 UTC
- Height
- at 400 ft
- Aircraft
- B717
- Remarks
- bases 400 ft during the descent
- B350 at 2,000 ft, 28 nm north, 7:22 am EDT (11:22 UTC): a routine report with nothing remarked on. At the departure end, 28 nm north of the line.
as filed, and in English
PTK UA /OV PTK090005/TM 1122/FL020/TP B350/WX FV10SM
- Report
- a routine report filed through PTK
- Where
- 5 nm east (090°) of PTK
- Time
- 11:22 UTC
- Height
- at 2,000 ft
- Aircraft
- B350
- Weather
- flight visibility 10 miles
- MD83 at 2,500 ft, 41 nm south, 6:43 am EDT (10:43 UTC): clear from 2,500 ft to 60,000 ft, remarks: base 1,000 ft tops 2,500 ft clear above. At the departure end, 41 nm south of the line.
as filed, and in English
TOL UA /OV TOL/TM 1043/FL025/TP MD83/RM BASE 010 TOPS 025 CLEAR ABOVE
- Report
- a routine report filed through TOL
- Where
- over TOL
- Time
- 10:43 UTC
- Height
- at 2,500 ft
- Aircraft
- MD83
- Remarks
- base 1,000 ft tops 2,500 ft clear above
- B739 at 9,000 ft, 29 nm northeast, 6:33 am EDT (10:33 UTC): no turbulence, no icing, clear from 9,000 ft to 60,000 ft, wind 295° at 13 knots, remarks: during the descent. At the departure end, 29 nm northeast of the line.
as filed, and in English
DTW UA /OV DXO033026/TM 1033/FL090/TP B739/SK SKC/WV 29513KTS/TB NEG/IC NEG/RM DURD
- Report
- a routine report filed through DTW
- Where
- 26 nm northeast (033°) of DXO
- Time
- 10:33 UTC
- Height
- at 9,000 ft
- Aircraft
- B739
- Sky
- clear
- Wind
- from 295° at 13 knots
- Turbulence
- none
- Icing
- none
- Remarks
- during the descent
- CL35 at 6,000 ft, 23 nm north, 6:47 am EDT (10:47 UTC): overcast from 1,400 ft to 2,600 ft; clear from 2,600 ft to 60,000 ft, remarks: clear above 2,600 ft. At the departure end, 23 nm north of the line.
as filed, and in English
PTK UA /OV PTK270006/TM 1047/FL060/TP CL35/SK OVC014-TOP026/RM CLEAR ABOVE 026
- Report
- a routine report filed through PTK
- Where
- 6 nm west (270°) of PTK
- Time
- 10:47 UTC
- Height
- at 6,000 ft
- Aircraft
- CL35
- Sky
- overcast from 1,400 ft, tops 2,600 ft
- Remarks
- clear above 2,600 ft
- B739 at 34,000 ft, 7 nm south, 6:58 am EDT (10:58 UTC): no turbulence. 219 nm along the route, 7 nm south of the line.
as filed, and in English
UES UA /OV BAE/TM 1058/FL340/TP B739/TB NEG
- Report
- a routine report filed through UES
- Where
- over BAE
- Time
- 10:58 UTC
- Height
- at 34,000 ft
- Aircraft
- B739
- Turbulence
- none
- C441 at 5,000 ft, 48 nm north, 7:52 am EDT (11:52 UTC): no turbulence, no icing, remarks: during the climb. 668 nm along the route, 48 nm north of the line.
as filed, and in English
ABR UA /OV ABR/TM 1152/FL050/TP C441/SK BASEUNKN-TOP032/TB NEG/IC NEG/RM DURC
- Report
- a routine report filed through ABR
- Where
- over ABR
- Time
- 11:52 UTC
- Height
- at 5,000 ft
- Aircraft
- C441
- Sky
- BASEUNKN-TOP032
- Turbulence
- none
- Icing
- none
- Remarks
- during the climb
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 15 forecast points nearest it (FWA, MKG, GRB, LSE, MCW, MSP, FSD, ABR, PIR, RAP, MLS, BIL, DLN, BOI, RDM). 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 | 270° at 14 kt | +13 kt | 5 °C | 107 kt | 16 h 07 min | 9:26 pm PDT (04:26 UTC) |
| 6,500 ft | 260° at 14 kt | +12 kt | 11 °C | 108 kt | 15 h 58 min | 9:17 pm PDT (04:17 UTC) |
| 8,500 ft | 250° at 14 kt | +12 kt | 6 °C | 108 kt | 15 h 58 min | 9:17 pm PDT (04:17 UTC) |
| 10,500 ft | 250° at 16 kt | +14 kt | 2 °C | 106 kt | 16 h 16 min | 9:35 pm PDT (04:35 UTC) |
| 12,500 ft | 250° at 18 kt | +16 kt | -2 °C | 104 kt | 16 h 35 min | 9:54 pm PDT (04:54 UTC) |
| 14,500 ft | 250° at 18 kt | +16 kt | -6 °C | 104 kt | 16 h 35 min | 9:54 pm PDT (04:54 UTC) |
| 16,500 ft | 250° at 18 kt | +16 kt | -9 °C | 104 kt | 16 h 35 min | 9:54 pm PDT (04:54 UTC) |
| 18,000 ft FL180 | 250° at 18 kt | +16 kt | -12 °C | 104 kt | 16 h 35 min | 9:54 pm PDT (04:54 UTC) |
| 24,000 ft FL240 | 240° at 24 kt | +20 kt | -24 °C | 100 kt | 17 h 14 min | 10:33 pm PDT (05:33 UTC) |
| 30,000 ft FL300 | 250° at 31 kt | +28 kt | -35 °C | 92 kt | 18 h 44 min | 12:03 am PDT (07:03 UTC) |
| 34,000 ft FL340 | 250° at 39 kt | +35 kt | -39 °C | 85 kt | 20 h 17 min | 1:36 am PDT (08:36 UTC) |
| 39,000 ft FL390 | 250° at 44 kt | +43 kt | -46 °C | 77 kt | 22 h 23 min | 3:42 am PDT (10:42 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| FWA | used from 0 nm out; 97 nm from the line | 270/20 | 300/16 15° | 290/14 10° | 280/17 3° | 290/25 -7° | 280/30 -19° | 280/34 -35° | 290/48 -44° | 300/64 -52° |
| MKG | used from 50 nm out; 59 nm from the line | 260/28 | 260/18 15° | 250/16 9° | 260/22 4° | 280/31 -9° | 270/35 -21° | 270/44 -35° | 270/42 -45° | 290/61 -51° |
| GRB | used from 199 nm out; 75 nm from the line | 250/32 | 250/22 17° | 240/18 8° | 280/21 6° | 280/34 -11° | 280/35 -21° | 280/39 -37° | 270/52 -45° | 290/60 -49° |
| LSE | used from 249 nm out; 79 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° |
| MCW | used from 399 nm out; 53 nm from the line | 250/36 | 250/24 19° | 240/26 11° | 250/30 5° | 270/22 -9° | 260/30 -21° | 260/31 -36° | 280/53 -38° | 280/66 -48° |
| MSP | used from 448 nm out; 57 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° |
| FSD | used from 498 nm out; 79 nm from the line | 210/20 | 230/23 21° | 220/25 14° | 230/30 5° | 230/26 -9° | 240/30 -21° | 270/33 -36° | 260/47 -37° | 270/58 -47° |
| ABR | used from 648 nm out; 50 nm from the line | 080/12 | 210/12 17° | 220/22 12° | 230/26 5° | 220/28 -10° | 230/41 -21° | 250/36 -36° | 260/47 -39° | 260/63 -47° |
| PIR | used from 698 nm out; 30 nm from the line | 230/15 15° | 220/22 14° | 220/24 6° | 200/32 -10° | 210/48 -22° | 240/45 -33° | 240/43 -37° | 250/55 -46° | |
| RAP | used from 797 nm out; 64 nm from the line | 250/28 16° | 260/31 10° | 240/25 4° | 210/35 -10° | 200/45 -23° | 230/47 -31° | 230/47 -36° | 230/51 -46° | |
| MLS | used from 947 nm out; 85 nm from the line | 290/17 -1° | 250/18 0° | 230/25 0° | 220/31 -11° | 220/32 -24° | 220/50 -32° | 220/60 -38° | 230/71 -46° | |
| BIL | used from 997 nm out; 86 nm from the line | 300/14 | 270/19 -2° | 260/26 -2° | 220/28 -13° | 210/51 -25° | 220/56 -33° | 220/61 -39° | 220/72 -45° | |
| DLN | used from 1196 nm out; 46 nm from the line | 190/10 -4° | 220/23 -4° | 210/21 -18° | 210/43 -28° | 210/60 -33° | 210/72 -37° | 210/67 -44° | ||
| BOI | used from 1345 nm out; 95 nm from the line | 320/11 1° | 280/8 -5° | 220/14 -11° | 200/60 -19° | 190/66 -31° | 210/46 -32° | 220/50 -33° | 220/43 -39° | |
| RDM | used from 1495 nm out; 116 nm from the line | 360/14 -2° | 020/25 -8° | 360/34 -13° | 360/75 -16° | 360/88 -25° | 360/80 -39° | 350/47 -42° | 360/11 -43° |
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 |
|---|---|---|---|---|---|---|---|
| YIP Detroit, MI | departure | low IFR Sky: sky obscured at 200 feet Weather: fog | from the south-southwest (210°) at 11 knots | 0.25 mi | 200 ft | 715 ft | 8:00 am EDT (12:00 UTC) |
| JXN Jackson, MI | 40 nm out, 11 nm south of the line, tower | marginal VFR Weather: mist | from the south-southwest (210°) at 4 knots | 3 mi | none | 1,000 ft | 11:56 UTC |
| MWC Milwaukee, WI | 209 nm out, 6 nm southeast of the line, tower | VFR | from the southwest (220°) at 6 knots | 10+ mi | none | 744 ft | 11:55 UTC |
| RST Rochester, MN | 409 nm out, 3 nm southeast of the line, tower | VFR | from the south (180°) at 10 knots | 8 mi | none | 1,317 ft | 11:54 UTC |
| TKC Tracy, MN | 538 nm out, 5 nm southwest of the line | low IFR Sky: overcast at 200 feet Weather: fog | from the north-northwest (330°) at 6 knots | 0.25 mi | 200 ft | 1,335 ft | 12:15 UTC |
| PIR Pierre, SD | 737 nm out, 23 nm south of the line | low IFR Sky: overcast at 400 feet Weather: mist | from the northeast (050°) at 8 knots | 3 mi | 400 ft | 1,744 ft | 11:53 UTC |
| EFC Belle Fourche, SD | 897 nm out, 14 nm south of the line | no report just now | 3,190 ft | ||||
| RED Red Lodge, MT | 1126 nm out, 7 nm north of the line | no report just now | 5,762 ft | ||||
| SMN Salmon, ID | 1325 nm out, 11 nm north of the line | VFR Sky: overcast at 5,500 feet | calm | 10+ mi | 5,500 ft | 4,044 ft | 11:56 UTC |
| MYL Mc Call, ID | 1415 nm out, 4 nm north of the line | marginal VFR Sky: overcast at 1,100 feet | calm | 10+ mi | 1,100 ft | 5,024 ft | 11:51 UTC |
| RDM Redmond, OR | 1634 nm out, 7 nm south of the line, tower | VFR Sky: overcast at 8,500 feet | calm | 10+ mi | 8,500 ft | 3,081 ft | 11:56 UTC |
| EUG Eugene, OR | destination | VFR | from the south-southwest (200°) at 5 knots | 10+ mi | none | 373 ft | 4:54 am PDT (11:54 UTC) |
The highest airport on this list sits at 5,762 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At EUG when you get there the forecast at the estimated arrival, 9:17 pm PDT (04:17 UTC)
Wind from the north at 6 knots, visibility more than 6 miles, clear skies VFR
The whole forecast for EUG
- From Mon 5:00 am PDT (12:00 UTC): wind from the south-southwest at 4 knots, visibility more than 6 miles, clear skies
- From Mon 12:00 pm PDT (19:00 UTC): wind from the north at 6 knots, visibility more than 6 miles, clear skies
The forecast for YIP, the departure
- From Mon 8:00 am EDT (12:00 UTC): wind from the west-southwest at 4 knots, visibility more than 6 miles, a broken layer at 25,000 feet
- From Mon 10:00 am EDT (14:00 UTC): wind from the southwest at 9 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 1:00 pm EDT (17:00 UTC): wind from the southwest at 12 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
- From Tue 1:00 am EDT (05:00 UTC): wind from the south-southwest at 4 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 11,000 feet
- 30% chance between Tue 2:00 am EDT (06:00 UTC) and 5:00 am EDT (09:00 UTC): visibility 6 miles, light rain showers, a broken layer at 5,000 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 YIP 6:57 pm EDT (22:57 UTC), at EUG 6:32 pm PDT (01:32 UTC) (civil twilight ends 7:01 pm PDT (02:01 UTC)). At 120 knots the arrival at EUG is after sunset there (6:34 pm PDT (01:34 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: Willow Run Airport, Mahlon Sweet Field.
