Patrick Leahy Burlington International to Chicago Executive BTV → PWK
659 nautical miles (758 statute miles) west on a straight line, true course 263°, about 278° magnetic at the departure end (variation 15W). At 120 knots that is 5 h 38 min at the quickest height in today's winds (6,500 ft, a 3-knot headwind), arriving about 4:17 am CDT (09:17 UTC), after sunset at the destination. Right now BTV is VFR, wind from the south (170°) at 4 knots; PWK is VFR, wind from the south-southeast (160°) at 3 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 ZULU 1C: moderate icing up to 25,000 ft. Over the first 110 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 130 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 20 to 80 nm out.
- 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 route from 399 to 579 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 BTV.
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 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 6 forecast points nearest it (ALB, SYR, BUF, CLE, MKG, JOT). 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 | 310° at 10 kt | +7 kt | 113 kt | 5 h 50 min | 4:29 am CDT (09:29 UTC) | |
| 6,500 ft | 330° at 12 kt | +3 kt | 11 °C | 117 kt | 5 h 38 min | 4:17 am CDT (09:17 UTC) |
| 8,500 ft | 330° at 10 kt | +3 kt | 8 °C | 117 kt | 5 h 38 min | 4:17 am CDT (09:17 UTC) |
| 10,500 ft | 320° at 10 kt | +4 kt | 5 °C | 116 kt | 5 h 41 min | 4:20 am CDT (09:20 UTC) |
| 12,500 ft | 310° at 11 kt | +6 kt | 1 °C | 114 kt | 5 h 47 min | 4:26 am CDT (09:26 UTC) |
| 14,500 ft | 310° at 15 kt | +9 kt | -3 °C | 111 kt | 5 h 56 min | 4:35 am CDT (09:35 UTC) |
| 16,500 ft | 310° at 19 kt | +12 kt | -7 °C | 108 kt | 6 h 06 min | 4:45 am CDT (09:45 UTC) |
| 18,000 ft FL180 | 300° at 21 kt | +14 kt | -10 °C | 106 kt | 6 h 13 min | 4:52 am CDT (09:52 UTC) |
| 24,000 ft FL240 | 300° at 26 kt | +19 kt | -22 °C | 101 kt | 6 h 31 min | 5:10 am CDT (10:10 UTC) |
| 30,000 ft FL300 | 310° at 34 kt | +20 kt | -37 °C | 100 kt | 6 h 35 min | 5:14 am CDT (10:14 UTC) |
| 34,000 ft FL340 | 300° at 41 kt | +31 kt | -44 °C | 89 kt | 7 h 24 min | 6:03 am CDT (11:03 UTC) |
| 39,000 ft FL390 | 290° at 47 kt | +38 kt | -51 °C | 82 kt | 8 h 02 min | 6:41 am CDT (11:41 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| ALB | used from 0 nm out; 100 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° |
| SYR | used from 50 nm out; 89 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° |
| BUF | used from 200 nm out; 60 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° |
| CLE | used from 349 nm out; 118 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° |
| MKG | used from 449 nm out; 104 nm from the line | 260/22 | 290/16 15° | 300/11 10° | 290/5 3° | 300/26 -9° | 300/32 -20° | 320/48 -36° | 320/61 -45° | 310/74 -53° |
| JOT | used from 599 nm out; 65 nm from the line | 250/23 | 270/22 15° | 250/16 10° | 240/9 4° | 280/22 -7° | 280/29 -19° | 300/29 -34° | 290/50 -43° | 300/64 -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 |
|---|---|---|---|---|---|---|---|
| BTV Burlington, VT | departure | VFR Sky: a broken layer at 4,100 feet, overcast at 5,000 feet Weather: light rain | from the south (170°) at 4 knots | 10+ mi | 4,100 ft | 334 ft | 10:54 pm EDT (02:54 UTC) |
| SLK Saranac Lake, NY | 50 nm out, 5 nm east of the line | marginal VFR Sky: overcast at 2,600 feet Weather: light rain, mist | calm | 5 mi | 2,600 ft | 1,662 ft | 02:51 UTC |
| ART Watertown, NY | 130 nm out, 11 nm southeast of the line | marginal VFR Sky: overcast at 2,700 feet Weather: light rain | calm | 10+ mi | 2,700 ft | 330 ft | 02:56 UTC |
| CYOO Oshawa, | 250 nm out, 7 nm north of the line | IFR Sky: a broken layer at 700 feet, a broken layer at 12,000 feet, a broken layer at 25,000 feet | calm | 9 mi | 700 ft | 459 ft | 03:16 UTC |
| CYYZ Toronto, | 280 nm out, 4 nm southwest of the line | VFR Sky: a few clouds at 600 feet, a broken layer at 3,900 feet, a broken layer at 11,000 feet | from the northeast (050°) at 2 knots | 10+ mi | 3,900 ft | 569 ft | 03:00 UTC |
| PTK Pontiac, MI | 459 nm out, 23 nm south of the line, tower | IFR Sky: a broken layer at 500 feet, overcast at 1,100 feet Weather: mist | from the west (260°) at 3 knots | 5 mi | 500 ft | 980 ft | 02:53 UTC |
| FNT Flint, MI | 469 nm out, 2 nm southeast of the line, tower | marginal VFR Sky: overcast at 1,400 feet | from the south-southwest (210°) at 3 knots | 10+ mi | 1,400 ft | 782 ft | 02:53 UTC |
| GRR Grand Rapids, MI | 549 nm out, 15 nm north of the line, tower | VFR Sky: a few clouds at 25,000 feet | from the south-southeast (150°) at 5 knots | 10+ mi | none | 793 ft | 02:53 UTC |
| BEH Benton Harbor, MI | 599 nm out, 19 nm southeast of the line | VFR Weather: mist | calm | 6 mi | none | 649 ft | 03:29 UTC |
| PWK Chicago/Prospect Heights/Wheeling, IL | destination | VFR Sky: a few clouds at 11,000 feet | from the south-southeast (160°) at 3 knots | 10+ mi | none | 644 ft | 9:52 pm CDT (02:52 UTC) |
The highest airport on this list sits at 1,662 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At PWK when you get there the forecast at the estimated arrival, 4:17 am CDT (09:17 UTC)
PWK has no terminal forecast; use the nearest airport that does.
The forecast for BTV, the departure
- From Sun 8:00 pm EDT (00:00 UTC): wind from the south at 8 knots, gusting to 16, visibility more than 6 miles, overcast at 6,000 feet
- 30% chance between Sun 8:00 pm EDT (00:00 UTC) and 12:00 am EDT (04:00 UTC): visibility 5 miles, light rain, mist, overcast at 3,500 feet
- From Mon 12:00 am EDT (04:00 UTC): wind from the south at 7 knots, visibility more than 6 miles, overcast at 3,500 feet
- 30% chance between Mon 12:00 am EDT (04:00 UTC) and 2:00 am EDT (06:00 UTC): visibility 5 miles, light rain, mist
- From Mon 5:00 am EDT (09:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 1,500 feet
- From Mon 8:00 am EDT (12:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 4,000 feet
- From Mon 2:00 pm EDT (18:00 UTC): wind from the north at 6 knots, visibility more than 6 miles, a broken layer at 2,500 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 BTV 6:13 pm EDT (22:13 UTC), at PWK 6:15 pm CDT (23:15 UTC) (civil twilight ends 6:43 pm CDT (23:43 UTC)). At 120 knots the arrival at PWK is before sunrise there (7:00 am CDT (12:00 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: Patrick Leahy Burlington International, Chicago Executive.