Westchester County to Green Bay/Austin Straubel International HPN → GRB
667 nautical miles (767 statute miles) northwest on a straight line, true course 293°, about 306° magnetic at the departure end (variation 13W). At 120 knots that is 6 h 07 min at the quickest height in today's winds (6,500 ft, a 11-knot headwind), arriving about 8:14 am CDT (13:14 UTC). Right now HPN is marginal VFR, wind from the north (010°) at 8 knots; GRB is VFR, wind from the south-southwest (210°) at 6 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 527 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 199 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 60 to 219 nm out.
- AIRMET TANGO 3W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Near the route, at the destination end.
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 HPN.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B763 at 800 ft, 26 nm south, 1:51 am EDT (05:51 UTC): a broken layer, remarks: bases at at 80,000 ft and tops 1500. At the departure end, 26 nm south of the line.
as filed, and in English
JFK UA /OV JFK 2 MILES SOUTHEAST/TM 0551/FL008/TP B763/SK BKN/RM BASES AT 800 AND TOPS 1500
- Report
- a routine report filed through JFK
- Where
- jfk 2 miles southeast
- Time
- 05:51 UTC
- Height
- at 800 ft
- Aircraft
- B763
- Sky
- a broken layer
- Remarks
- bases at at 80,000 ft and tops 1500
- GA6C descending, 14 nm north, 12:32 am EDT (04:32 UTC): overcast above 1,000 ft, remarks: bases OVC010. 30 nm along the route, 14 nm north of the line.
as filed, and in English
SWF UA /OV SWF 270005/TM 0432/FLDURD/TP GA6C/SK OVC010/RM BASES OVC010
- Report
- a routine report filed through SWF
- Where
- 5 nm west (270°) of SWF
- Time
- 04:32 UTC
- Height
- during the descent
- Aircraft
- GA6C
- Sky
- overcast from 1,000 ft
- Remarks
- bases OVC010
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 (JFK, AVP, BUF, CLE, TVC, GRB). 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 | 290° at 12 kt | +12 kt | 108 kt | 6 h 11 min | 8:18 am CDT (13:18 UTC) | |
| 6,500 ft | 320° at 12 kt | +11 kt | 12 °C | 109 kt | 6 h 07 min | 8:14 am CDT (13:14 UTC) |
| 8,500 ft | 300° at 12 kt | +12 kt | 9 °C | 108 kt | 6 h 11 min | 8:18 am CDT (13:18 UTC) |
| 10,500 ft | 290° at 12 kt | +12 kt | 5 °C | 108 kt | 6 h 11 min | 8:18 am CDT (13:18 UTC) |
| 12,500 ft | 290° at 13 kt | +12 kt | 2 °C | 108 kt | 6 h 11 min | 8:18 am CDT (13:18 UTC) |
| 14,500 ft | 290° at 16 kt | +16 kt | -2 °C | 104 kt | 6 h 25 min | 8:32 am CDT (13:32 UTC) |
| 16,500 ft | 300° at 19 kt | +19 kt | -7 °C | 101 kt | 6 h 36 min | 8:43 am CDT (13:43 UTC) |
| 18,000 ft FL180 | 300° at 22 kt | +21 kt | -10 °C | 99 kt | 6 h 44 min | 8:51 am CDT (13:51 UTC) |
| 24,000 ft FL240 | 290° at 28 kt | +27 kt | -22 °C | 93 kt | 7 h 10 min | 9:17 am CDT (14:17 UTC) |
| 30,000 ft FL300 | 290° at 37 kt | +36 kt | -37 °C | 84 kt | 7 h 56 min | 10:03 am CDT (15:03 UTC) |
| 34,000 ft FL340 | 290° at 41 kt | +39 kt | -44 °C | 81 kt | 8 h 14 min | 10:21 am CDT (15:21 UTC) |
| 39,000 ft FL390 | 290° at 51 kt | +50 kt | -51 °C | 70 kt | 9 h 32 min | 11:39 am CDT (16:39 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| JFK | used from 0 nm out; 40 nm from the line | 250/18 | 250/23 14° | 240/33 9° | 240/33 4° | 240/38 -10° | 240/45 -21° | 230/86 -32° | 230/102 -40° | 230/84 -51° |
| AVP | used from 50 nm out; 25 nm from the line | 150/5 | 350/13 12° | 270/20 8° | 260/17 4° | 260/25 -11° | 240/31 -22° | 240/54 -35° | 230/61 -41° | 240/55 -49° |
| BUF | used from 149 nm out; 79 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 348 nm out; 108 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° |
| TVC | used from 448 nm out; 101 nm from the line | 260/31 | 280/22 15° | 290/18 10° | 270/13 2° | 290/25 -10° | 300/35 -21° | 310/52 -37° | 320/59 -47° | 300/84 -54° |
| GRB | used from 597 nm out; 45 nm from the line | 250/36 | 270/23 16° | 270/14 9° | 240/18 4° | 280/26 -9° | 280/29 -20° | 290/42 -36° | 290/51 -45° | 290/72 -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 |
|---|---|---|---|---|---|---|---|
| HPN White Plains, NY | departure | marginal VFR Sky: overcast at 1,500 feet | from the north (010°) at 8 knots | 10+ mi | 1,500 ft | 439 ft | 2:56 am EDT (06:56 UTC) |
| SWF New York, NY | 30 nm out, 18 nm northeast of the line, tower | marginal VFR Sky: scattered clouds at 700 feet, a broken layer at 1,200 feet | from the east (090°) at 6 knots | 7 mi | 1,200 ft | 490 ft | 06:45 UTC |
| AVP Wilkes-Barre/Scranton, PA | 90 nm out, 19 nm southwest of the line, tower | marginal VFR Sky: overcast at 1,400 feet | from the northeast (040°) at 3 knots | 10+ mi | 1,400 ft | 961 ft | 06:54 UTC |
| ELM Elmira/Corning, NY | 159 nm out, 9 nm northeast of the line, tower | IFR Sky: a few clouds at 100 feet, scattered clouds at 1,000 feet, overcast at 2,700 feet Weather: mist | calm | 1 mi | 2,700 ft | 955 ft | 07:01 UTC |
| BUF Buffalo, NY | 249 nm out, 24 nm north of the line, tower | VFR Sky: scattered clouds at 3,400 feet, a broken layer at 14,000 feet | from the south (170°) at 4 knots | 10+ mi | 14,000 ft | 726 ft | 06:54 UTC |
| CYQS St Thomas, | 348 nm out, 19 nm south of the line | no report just now | 776 ft | ||||
| CFS Caro, MI | 458 nm out, 9 nm south of the line | low IFR Sky: sky obscured at 500 feet Weather: fog | from the south-southwest (210°) at 4 knots | 0.5 mi | 500 ft | 704 ft | 06:55 UTC |
| MBS Saginaw, MI | 488 nm out, 13 nm south of the line, tower | VFR | from the south-southwest (210°) at 7 knots | 7 mi | none | 668 ft | 06:53 UTC |
| MBL Manistee, MI | 587 nm out, 7 nm northeast of the line | VFR | from the east (080°) at 5 knots | 7 mi | none | 621 ft | 06:56 UTC |
| MTW Manitowoc, WI | 647 nm out, 17 nm south of the line | VFR | from the southwest (230°) at 8 knots | 10+ mi | none | 650 ft | 06:56 UTC |
| GRB Green Bay, WI | destination | VFR | from the south-southwest (210°) at 6 knots | 10+ mi | none | 695 ft | 1:53 am CDT (06:53 UTC) |
The highest airport on this list sits at 961 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At GRB when you get there the forecast at the estimated arrival, 8:14 am CDT (13:14 UTC)
Wind from the south-southwest at 6 knots, visibility more than 6 miles, a broken layer at 20,000 feet VFR
The whole forecast for GRB
- From Mon 1:00 am CDT (06:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, low-level wind shear, a broken layer at 25,000 feet
- From Mon 5:00 am CDT (10:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, a broken layer at 20,000 feet
- From Mon 11:00 am CDT (16:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, clear skies
- From Mon 5:00 pm CDT (22:00 UTC): wind from the south at 4 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, scattered clouds at 15,000 feet
- 30% chance between Mon 6:00 pm CDT (23:00 UTC) and 10:00 pm CDT (03:00 UTC): light rain showers, a broken layer at 6,000 feet
- From Mon 10:00 pm CDT (03:00 UTC): wind from the east-southeast at 4 knots, visibility more than 6 miles, scattered clouds at 2,000 feet
The forecast for HPN, the departure
- From Mon 2:00 am EDT (06:00 UTC): wind from the north at 10 knots, visibility 6 miles, mist, showers nearby, overcast at 600 feet
- From Mon 7:00 am EDT (11:00 UTC): wind from the north at 9 knots, visibility more than 6 miles, overcast at 800 feet
- From Mon 10:00 am EDT (14:00 UTC): wind from the north-northwest at 9 knots, visibility more than 6 miles, a broken layer at 2,000 feet
- From Mon 1:00 pm EDT (17:00 UTC): wind from the north-northwest at 9 knots, visibility more than 6 miles, a few clouds at 2,500 feet, scattered clouds at 5,000 feet
- From Mon 10:00 pm EDT (02:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 5,000 feet, a few clouds at 15,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 5/2811 NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local 21 nm from the route, at the departure end · security · until 20 October · ZNY
Daylight
Sunset at HPN 6:19 pm EDT (22:19 UTC), at GRB 6:13 pm CDT (23:13 UTC) (civil twilight ends 6:42 pm CDT (23:42 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: Westchester County, Green Bay/Austin Straubel International.