Willow Run Airport to Patrick Leahy Burlington International YIP → BTV
472 nautical miles (543 statute miles) east on a straight line, true course 070°, about 076° magnetic at the departure end (variation 6W). At 120 knots that is 3 h 02 min at the quickest height in today's winds (39,000 ft, a 36-knot tailwind), arriving about 7:22 am EDT (11:22 UTC). Right now YIP is IFR, wind from the west-southwest (250°) at 8 knots; BTV is marginal VFR, wind calm. 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, fog). Over the whole route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 89 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 0 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 YIP.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B738 at 1,700 ft, 41 nm south, 2:20 am EDT (06:20 UTC): overcast from 1,700 ft to 2,000 ft, remarks: during the descent. At the departure end, 41 nm south of the line.
as filed, and in English
TOL UA /OV KTOL/TM 0620/FL017/TP B738/SK OVC017-TOP020/RM DURD
- Report
- a routine report filed through TOL
- Where
- over KTOL
- Time
- 06:20 UTC
- Height
- at 1,700 ft
- Aircraft
- B738
- Sky
- overcast from 1,700 ft, tops 2,000 ft
- Remarks
- during the descent
- A333 descending, 5 nm south, 1:44 am EDT (05:44 UTC): a routine report with nothing remarked on. At the departure end, 5 nm south of the line.
as filed, and in English
DTW UA /OV DTW/TM 0544/FLDURD/TP A333/SK TOPS 025
- Report
- a routine report filed through DTW
- Where
- over DTW
- Time
- 05:44 UTC
- Height
- during the descent
- Aircraft
- A333
- Sky
- tops 2,500 ft
- A359 at 37,000 ft, 1 nm southwest, 2:18 am EDT (06:18 UTC): light to moderate chop turbulence. 344 nm along the route, 1 nm southwest of the line.
as filed, and in English
ART UA /OV ART/TM 0618/FL370/TP A359/TB CONS LGT OCNL MOD CHOP
- Report
- a routine report filed through ART
- Where
- over ART
- Time
- 06:18 UTC
- Height
- at 37,000 ft
- Aircraft
- A359
- Turbulence
- continuous light occasional moderate chop
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 5 forecast points nearest it (CLE, BUF, SYR, ALB, BML). 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 | 320° at 8 kt | −3 kt | 123 kt | 3 h 50 min | 8:10 am EDT (12:10 UTC) | |
| 5,500 ft | 350° at 12 kt | +2 kt | 118 kt | 4 h | 8:20 am EDT (12:20 UTC) | |
| 7,500 ft | 350° at 12 kt | +2 kt | 8 °C | 118 kt | 4 h | 8:20 am EDT (12:20 UTC) |
| 9,500 ft | 340° at 10 kt | 0 | 5 °C | 120 kt | 3 h 56 min | 8:16 am EDT (12:16 UTC) |
| 11,500 ft | 330° at 12 kt | −3 kt | 3 °C | 123 kt | 3 h 50 min | 8:10 am EDT (12:10 UTC) |
| 13,500 ft | 320° at 14 kt | −5 kt | -1 °C | 125 kt | 3 h 47 min | 8:07 am EDT (12:07 UTC) |
| 15,500 ft | 320° at 17 kt | −7 kt | -6 °C | 127 kt | 3 h 43 min | 8:03 am EDT (12:03 UTC) |
| 17,500 ft | 310° at 20 kt | −9 kt | -10 °C | 129 kt | 3 h 40 min | 8:00 am EDT (12:00 UTC) |
| 18,000 ft FL180 | 310° at 20 kt | −10 kt | -11 °C | 130 kt | 3 h 38 min | 7:58 am EDT (11:58 UTC) |
| 24,000 ft FL240 | 300° at 25 kt | −17 kt | -22 °C | 137 kt | 3 h 27 min | 7:47 am EDT (11:47 UTC) |
| 30,000 ft FL300 | 300° at 31 kt | −19 kt | -37 °C | 139 kt | 3 h 24 min | 7:44 am EDT (11:44 UTC) |
| 34,000 ft FL340 | 280° at 36 kt | −30 kt | -43 °C | 150 kt | 3 h 09 min | 7:29 am EDT (11:29 UTC) |
| 39,000 ft FL390 | 280° at 40 kt | −36 kt | -50 °C | 156 kt | 3 h 02 min | 7:22 am EDT (11:22 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| CLE | used from 0 nm out; 78 nm from the line | 340/7 | 010/16 13° | 350/18 8° | 350/20 3° | 340/31 -10° | 340/46 -21° | 340/54 -37° | 330/62 -44° | 340/65 -49° |
| BUF | used from 98 nm out; 96 nm from the line | 320/10 | 010/16 10° | 360/10 6° | 340/13 2° | 330/22 -11° | 300/25 -23° | 320/31 -38° | 300/29 -44° | 280/36 -50° |
| SYR | used from 295 nm out; 49 nm from the line | 280/13 | 350/18 10° | 340/10 6° | 300/15 1° | 280/17 -12° | 270/16 -23° | 280/25 -38° | 250/40 -42° | 240/53 -50° |
| ALB | used from 393 nm out; 94 nm from the line | 120/9 | 270/8 10° | L/V 5° | 260/9 1° | 260/34 -10° | 250/42 -22° | 240/57 -35° | 240/70 -42° | 240/65 -50° |
| BML | used from 443 nm out; 99 nm from the line | 260/22 | 300/13 8° | 280/13 4° | 260/13 0° | 260/16 -11° | 240/45 -21° | 240/59 -36° | 240/77 -44° | 240/83 -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 |
|---|---|---|---|---|---|---|---|
| YIP Detroit, MI | departure | IFR Sky: overcast at 700 feet | from the west-southwest (250°) at 8 knots | 10+ mi | 700 ft | 715 ft | 3:53 am EDT (07:53 UTC) |
| DET Detroit, MI | 30 nm out, 5 nm west of the line, tower | IFR Sky: overcast at 900 feet | from the west (260°) at 4 knots | 10+ mi | 900 ft | 624 ft | 08:03 UTC |
| PHN Port Huron, MI | 59 nm out, 23 nm northwest of the line | IFR Sky: overcast at 900 feet | from the south-southwest (210°) at 4 knots | 10+ mi | 900 ft | 650 ft | 08:15 UTC |
| CYQS St Thomas, | 108 nm out, 6 nm southeast of the line | no report just now | 776 ft | ||||
| IAG Niagara Falls, NY | 207 nm out, 15 nm southeast of the line, tower | marginal VFR Sky: scattered clouds at 400 feet, overcast at 2,700 feet | from the west (260°) at 4 knots | 7 mi | 2,700 ft | 592 ft | 07:53 UTC |
| ART Watertown, NY | 344 nm out, 2 nm northeast of the line | VFR Sky: a few clouds at 1,400 feet, overcast at 3,900 feet | calm | 9 mi | 3,900 ft | 330 ft | 07:56 UTC |
| SLK Saranac Lake, NY | 423 nm out, 7 nm northeast of the line | IFR Sky: scattered clouds at 400 feet, overcast at 900 feet Weather: mist | calm | 2 mi | 900 ft | 1,662 ft | 08:15 UTC |
| LKP Lake Placid, NY | 433 nm out, 5 nm southeast of the line | marginal VFR Sky: overcast at 1,000 feet Weather: mist | from the east-southeast (120°) at 1 knots | 4 mi | 1,000 ft | 1,747 ft | 07:55 UTC |
| BTV Burlington, VT | destination | marginal VFR Sky: scattered clouds at 600 feet, overcast at 2,200 feet | calm | 10+ mi | 2,200 ft | 334 ft | 4:10 am EDT (08:10 UTC) |
The highest airport on this list sits at 1,747 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BTV when you get there the forecast at the estimated arrival, 7:22 am EDT (11:22 UTC)
Wind calm, visibility 6 miles, mist, overcast at 1,400 feet marginal VFR
The whole forecast for BTV
- From Mon 4:00 am EDT (08:00 UTC): wind from the south at 5 knots, visibility 6 miles, light rain, mist, overcast at 2,500 feet
- From Mon 5:00 am EDT (09:00 UTC): wind calm, visibility 6 miles, mist, overcast at 1,400 feet
- From Mon 9:00 am EDT (13:00 UTC): wind calm, visibility more than 6 miles, a broken layer at 2,100 feet
- From Mon 1:00 pm EDT (17:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 5,000 feet
- From Mon 5:00 pm EDT (21:00 UTC): wind from the north at 6 knots, visibility 6 miles, mist, overcast at 1,900 feet
The forecast for YIP, the departure
- From Mon 4:00 am EDT (08:00 UTC): wind from the west-southwest at 4 knots, visibility more than 6 miles, overcast at 1,000 feet
- From Mon 4:30 am EDT (08:30 UTC): wind from the west-southwest at 4 knots, visibility more than 6 miles, a broken layer at 25,000 feet
- At times between Mon 6:00 am EDT (10:00 UTC) and 9:00 am EDT (13:00 UTC): visibility 4 miles, mist, a broken layer at 300 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
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 BTV 6:13 pm EDT (22:13 UTC) (civil twilight ends 6:43 pm EDT (22:43 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, Patrick Leahy Burlington International.
