Robert Gray Army Airfield to Westchester County GRK → HPN
1,310 nautical miles (1,507 statute miles) northeast on a straight line, true course 056°, about 052° magnetic at the departure end (variation 4E). At 120 knots that is 9 h 06 min at the quickest height in today's winds (34,000 ft, a 24-knot tailwind), arriving about 11:19 am EDT (15:19 UTC). Right now GRK is VFR, wind from the south-southeast (150°) at 12 knots; HPN is IFR, wind from the north (360°) at 8 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 last 690 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 860 to 1140 nm out.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 260 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 GRK.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- A319 at 23,000 ft, 49 nm southeast, 10:21 pm CDT (03:21 UTC): moderate turbulence. 1250 nm along the route, 49 nm southeast of the line.
as filed, and in English
MJX UA /OV CYN345010/TM 0321/FL230/TP A319/TB MOD
- Report
- a routine report filed through MJX
- Where
- 10 nm north (345°) of CYN
- Time
- 03:21 UTC
- Height
- at 23,000 ft
- Aircraft
- A319
- Turbulence
- moderate
- E145 at 600 ft, 1 nm east, 10:20 pm CDT (03:20 UTC): overcast above 600 ft. 1160 nm along the route, 1 nm east of the line.
as filed, and in English
MDT UA /OV MDT/TM 0320/FL006/TP E145/SK OVC 006
- Report
- a routine report filed through MDT
- Where
- over MDT
- Time
- 03:20 UTC
- Height
- at 600 ft
- Aircraft
- E145
- Sky
- overcast from 600 ft
- GA6C descending, 31 nm northwest, 11:32 pm CDT (04:32 UTC): overcast above 1,000 ft, remarks: bases OVC010. At the destination end, 31 nm northwest 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 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 12 forecast points nearest it (CLL, DAL, SHV, LIT, MEM, BNA, LOU, CRW, EKN, PSB, AVP, JFK). 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 | 250° at 11 kt | −11 kt | 131 kt | 10 h | 12:13 pm EDT (16:13 UTC) | |
| 5,500 ft | 290° at 11 kt | −8 kt | 12 °C | 128 kt | 10 h 14 min | 12:27 pm EDT (16:27 UTC) |
| 7,500 ft | 290° at 13 kt | −9 kt | 13 °C | 129 kt | 10 h 09 min | 12:22 pm EDT (16:22 UTC) |
| 9,500 ft | 290° at 15 kt | −10 kt | 9 °C | 130 kt | 10 h 05 min | 12:18 pm EDT (16:18 UTC) |
| 11,500 ft | 300° at 13 kt | −8 kt | 6 °C | 128 kt | 10 h 14 min | 12:27 pm EDT (16:27 UTC) |
| 13,500 ft | 300° at 14 kt | −8 kt | 2 °C | 128 kt | 10 h 14 min | 12:27 pm EDT (16:27 UTC) |
| 15,500 ft | 300° at 15 kt | −8 kt | -2 °C | 128 kt | 10 h 14 min | 12:27 pm EDT (16:27 UTC) |
| 17,500 ft | 300° at 16 kt | −9 kt | -6 °C | 129 kt | 10 h 09 min | 12:22 pm EDT (16:22 UTC) |
| 18,000 ft FL180 | 300° at 16 kt | −9 kt | -7 °C | 129 kt | 10 h 09 min | 12:22 pm EDT (16:22 UTC) |
| 24,000 ft FL240 | 300° at 20 kt | −12 kt | -18 °C | 132 kt | 9 h 55 min | 12:08 pm EDT (16:08 UTC) |
| 30,000 ft FL300 | 300° at 34 kt | −19 kt | -32 °C | 139 kt | 9 h 25 min | 11:38 am EDT (15:38 UTC) |
| 34,000 ft FL340 | 290° at 38 kt | −24 kt | -40 °C | 144 kt | 9 h 06 min | 11:19 am EDT (15:19 UTC) |
| 39,000 ft FL390 | 300° at 36 kt | −20 kt | -50 °C | 140 kt | 9 h 21 min | 11:34 am EDT (15:34 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| CLL | used from 0 nm out; 69 nm from the line | 170/22 | 170/26 18° | 200/15 14° | 240/13 8° | 240/15 -5° | 260/17 -13° | 290/27 -29° | 290/22 -40° | 320/30 -51° |
| DAL | used from 50 nm out; 66 nm from the line | 190/29 | 220/23 17° | 220/17 13° | 250/18 8° | 230/18 -5° | 240/18 -15° | 270/34 -29° | 280/33 -39° | 300/36 -51° |
| SHV | used from 150 nm out; 59 nm from the line | 200/18 | 230/24 18° | 230/24 12° | 240/14 8° | 260/12 -4° | 240/11 -15° | 300/31 -29° | 300/32 -40° | 300/36 -52° |
| LIT | used from 300 nm out; 46 nm from the line | 220/21 | 230/17 16° | 250/24 12° | 260/15 7° | 260/13 -5° | 280/25 -16° | 290/35 -30° | 300/42 -40° | 300/40 -52° |
| MEM | used from 400 nm out; 37 nm from the line | 230/19 | 260/16 15° | 270/17 12° | 300/13 6° | 300/15 -5° | 300/26 -18° | 300/34 -32° | 300/41 -40° | 310/46 -52° |
| BNA | used from 550 nm out; 65 nm from the line | 310/20 | 340/20 17° | 330/24 10° | 340/22 5° | 330/26 -6° | 340/29 -18° | 330/52 -33° | 320/62 -41° | 340/45 -50° |
| LOU | used from 700 nm out; 64 nm from the line | 310/18 | 340/28 16° | 340/29 10° | 350/27 3° | 330/27 -7° | 340/39 -19° | 330/58 -33° | 330/67 -41° | 330/40 -49° |
| CRW | used from 800 nm out; 88 nm from the line | 330/20 | 330/23 11° | 340/25 8° | 340/21 2° | 340/33 -9° | 340/41 -20° | 330/42 -35° | 320/44 -39° | 320/43 -47° |
| EKN | used from 950 nm out; 29 nm from the line | 330/21 12° | 330/25 7° | 350/22 2° | 330/24 -10° | 310/27 -21° | 320/33 -35° | 290/31 -39° | 290/34 -47° | |
| PSB | used from 1050 nm out; 76 nm from the line | 360/13 13° | 330/14 7° | 300/11 3° | 290/12 -11° | 240/23 -23° | 270/25 -36° | 250/34 -40° | 250/45 -48° | |
| AVP | used from 1150 nm out; 72 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° |
| JFK | used from 1250 nm out; 33 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° |
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 |
|---|---|---|---|---|---|---|---|
| GRK Fort Hood (Killeen), TX | departure | VFR Sky: a broken layer at 18,000 feet | from the south-southeast (150°) at 12 knots | 10+ mi | 18,000 ft | 1,015 ft | 12:55 am CDT (05:55 UTC) |
| CNW Waco, TX | 50 nm out, 7 nm northwest of the line, tower | VFR | from the south-southeast (160°) at 7 knots | 10+ mi | none | 470 ft | 05:55 UTC |
| TYR Tyler, TX | 150 nm out, 5 nm south of the line, tower | VFR | from the south (180°) at 11 knots | 10+ mi | none | 543 ft | 05:53 UTC |
| PBF Pine Bluff, AR | 350 nm out, 3 nm southeast of the line | VFR | calm | 10+ mi | none | 205 ft | 05:53 UTC |
| MKL Jackson, TN | 520 nm out, 4 nm east of the line, tower | VFR | calm | 10+ mi | none | 434 ft | 05:53 UTC |
| JWN Nashville, TN | 630 nm out, 19 nm south of the line, tower | low IFR Sky: overcast at 200 feet Weather: fog | calm | 0.25 mi | 200 ft | 501 ft | 05:55 UTC |
| RGA Richmond, KY | 780 nm out, 5 nm west of the line | VFR Sky: scattered clouds at 3,000 feet | from the west-southwest (250°) at 5 knots | 10+ mi | none | 1,002 ft | 05:55 UTC |
| HTS Huntington, WV | 870 nm out, 6 nm north of the line, tower | marginal VFR Sky: scattered clouds at 900 feet, overcast at 1,800 feet | calm | 10+ mi | 1,800 ft | 828 ft | 05:51 UTC |
| CKB Clarksburg, WV | 990 nm out, 12 nm north of the line, tower | low IFR Sky: overcast at 400 feet Weather: mist | from the west-northwest (290°) at 4 knots | 6 mi | 400 ft | 1,223 ft | 06:00 UTC |
| MDT Harrisburg, PA | 1160 nm out, 1 nm east of the line, tower | marginal VFR Sky: overcast at 1,000 feet Weather: light rain | from the northwest (320°) at 4 knots | 10+ mi | 1,000 ft | 310 ft | 05:56 UTC |
| RDG Reading, PA | 1200 nm out, 3 nm south of the line, tower | IFR Sky: overcast at 900 feet | from the north-northeast (030°) at 5 knots | 10+ mi | 900 ft | 343 ft | 05:54 UTC |
| HPN White Plains, NY | destination | IFR Sky: a broken layer at 800 feet, overcast at 1,600 feet | from the north (360°) at 8 knots | 10+ mi | 800 ft | 439 ft | 1:56 am EDT (05:56 UTC) |
The highest airport on this list sits at 1,223 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At HPN when you get there the forecast at the estimated arrival, 11:19 am EDT (15:19 UTC)
Wind from the north-northwest at 9 knots, visibility more than 6 miles, a broken layer at 2,000 feet marginal VFR
The whole forecast for HPN
- 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
The forecast for GRK, the departure
- From Sun 7:00 pm CDT (00:00 UTC): wind from the south-southeast at 9 knots, scattered clouds at 6,000 feet
- Changing between Mon 3:00 am CDT (08:00 UTC) and 4:00 am CDT (09:00 UTC) to: wind from the southeast at 6 knots, a broken layer at 1,500 feet
- Changing between Mon 4:00 pm CDT (21:00 UTC) and 5:00 pm CDT (22:00 UTC) to: wind from the south-southeast at 12 knots, a broken layer at 5,000 feet
- Changing between Mon 10:00 pm CDT (03:00 UTC) and 11:00 pm CDT (04:00 UTC) to: wind from the south-southeast at 9 knots, a broken layer at 1,500 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/0543 MCGREGOR, TX 5 nm from the route, at the departure end · security · ZFW
- 6/0708 Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC 13 nm from the route, 640 nm along the route · security · until 1 August · ZME
- 5/2811 NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local 12 nm from the route, at the destination end · security · until 20 October · ZNY
Daylight
Sunset at GRK 7:02 pm CDT (00:02 UTC), at HPN 6:19 pm EDT (22:19 UTC) (civil twilight ends 6:46 pm EDT (22:46 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: Robert Gray Army Airfield, Westchester County.