Gulfport-Biloxi International to Long Island Mac Arthur Airport GPT → ISP
996 nautical miles (1,146 statute miles) northeast on a straight line, true course 047°, about 049° magnetic at the departure end (variation 2W). At 120 knots that is 7 h 47 min at the quickest height in today's winds (39,000 ft, a 8-knot tailwind), arriving about 3:23 pm EDT (19:23 UTC). 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
- AIRMET SIERRA 1E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, mist, fog). Over the first 199 nm of the route.
- AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the route from 329 to 687 nm out.
- AIRMET TANGO 5W: moderate turbulence above 18,000 ft (due to mountain wave) from 29,000 ft to 40,000 ft. Over the route from 348 to 568 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). Over the route from 478 to 757 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 478 to 558 nm out.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 33,000 ft. Over the last 348 nm of the route.
- 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 249 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 GPT.
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 08:00–15:00 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 9 forecast points nearest it (MOB, MGM, ATL, GSP, TRI, ROA, RIC, ACY, 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 | 330° at 22 kt | +5 kt | 115 kt | 8 h 40 min | 4:16 pm EDT (20:16 UTC) | |
| 5,500 ft | 340° at 21 kt | +6 kt | 11 °C | 114 kt | 8 h 44 min | 4:20 pm EDT (20:20 UTC) |
| 7,500 ft | 340° at 22 kt | +8 kt | 12 °C | 112 kt | 8 h 54 min | 4:30 pm EDT (20:30 UTC) |
| 9,500 ft | 340° at 23 kt | +9 kt | 8 °C | 111 kt | 8 h 58 min | 4:34 pm EDT (20:34 UTC) |
| 11,500 ft | 340° at 20 kt | +6 kt | 5 °C | 114 kt | 8 h 44 min | 4:20 pm EDT (20:20 UTC) |
| 13,500 ft | 330° at 21 kt | +5 kt | 1 °C | 115 kt | 8 h 40 min | 4:16 pm EDT (20:16 UTC) |
| 15,500 ft | 330° at 23 kt | +4 kt | -2 °C | 116 kt | 8 h 35 min | 4:11 pm EDT (20:11 UTC) |
| 17,500 ft | 330° at 25 kt | +4 kt | -6 °C | 116 kt | 8 h 35 min | 4:11 pm EDT (20:11 UTC) |
| 18,000 ft FL180 | 330° at 26 kt | +3 kt | -7 °C | 117 kt | 8 h 31 min | 4:07 pm EDT (20:07 UTC) |
| 24,000 ft FL240 | 330° at 28 kt | +5 kt | -19 °C | 115 kt | 8 h 40 min | 4:16 pm EDT (20:16 UTC) |
| 30,000 ft FL300 | 320° at 36 kt | 0 | -33 °C | 120 kt | 8 h 18 min | 3:54 pm EDT (19:54 UTC) |
| 34,000 ft FL340 | 330° at 36 kt | +3 kt | -40 °C | 117 kt | 8 h 31 min | 4:07 pm EDT (20:07 UTC) |
| 39,000 ft FL390 | 300° at 28 kt | −8 kt | -50 °C | 128 kt | 7 h 47 min | 3:23 pm EDT (19:23 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| MOB | used from 0 nm out; 24 nm from the line | L/V | L/V 18° | 020/8 11° | L/V 6° | 330/12 -5° | 330/23 -17° | 330/30 -32° | 350/39 -41° | 340/40 -53° |
| MGM | used from 100 nm out; 54 nm from the line | 320/19 | 330/16 17° | 340/21 11° | 330/11 5° | 330/27 -6° | 330/21 -17° | 330/37 -32° | 340/44 -40° | 360/30 -52° |
| ATL | used from 249 nm out; 34 nm from the line | 330/32 | 340/36 17° | 350/34 10° | 340/25 6° | 330/27 -6° | 350/35 -18° | 330/49 -32° | 340/47 -41° | 340/27 -51° |
| GSP | used from 398 nm out; 30 nm from the line | 340/30 | 360/24 13° | 350/29 10° | 340/33 6° | 340/40 -7° | 350/44 -19° | 340/59 -31° | 350/55 -41° | 300/29 -50° |
| TRI | used from 498 nm out; 62 nm from the line | 340/25 11° | 350/37 9° | 350/34 6° | 340/39 -7° | 340/43 -19° | 340/55 -32° | 330/58 -42° | 320/37 -50° | |
| ROA | used from 548 nm out; 46 nm from the line | 310/32 | 340/32 14° | 350/25 9° | 340/24 3° | 340/42 -8° | 340/52 -20° | 350/62 -34° | 350/64 -39° | 310/44 -48° |
| RIC | used from 697 nm out; 49 nm from the line | 350/34 | 340/27 12° | 340/36 8° | 330/31 3° | 310/32 -9° | 320/34 -21° | 300/37 -34° | 290/37 -39° | 290/42 -46° |
| ACY | used from 796 nm out; 78 nm from the line | 350/12 | 340/12 11° | 340/12 6° | 340/13 2° | 270/10 -10° | 240/17 -23° | 230/46 -33° | 230/46 -40° | 240/46 -49° |
| JFK | used from 946 nm out; 11 nm from the line | 020/25 | 290/9 12° | 300/12 7° | 320/14 3° | 290/17 -10° | 240/27 -21° | 240/44 -36° | 240/53 -41° | 240/51 -50° |
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 |
|---|---|---|---|---|---|---|---|
| GPT Gulfport, MS | departure | no report just now | 28 ft | ||||
| PQL Pascagoula, MS | 20 nm out, 17 nm southeast of the line, tower | no report just now | 16 ft | ||||
| MGM Montgomery, AL | 179 nm out, 9 nm southeast of the line, tower | no report just now | 221 ft | ||||
| ALX Alexander City, AL | 219 nm out, 4 nm northwest of the line | no report just now | 685 ft | ||||
| FTY Atlanta, GA | 309 nm out, 4 nm southeast of the line, tower | no report just now | 841 ft | ||||
| AVL Asheville, NC | 448 nm out, 9 nm northwest of the line, tower | no report just now | 2,163 ft | ||||
| HKY Hickory, NC | 498 nm out, 13 nm southeast of the line, tower | no report just now | 1,189 ft | ||||
| LYH Lynchburg, VA | 647 nm out, 5 nm south of the line, tower | no report just now | 938 ft | ||||
| DCA Washington, DC | 777 nm out, 9 nm north of the line, tower | no report just now | 14 ft | ||||
| ILG Wilmington, DE | 866 nm out, 10 nm northwest of the line, tower | no report just now | 79 ft | ||||
| JFK New York, NY | 966 nm out, 10 nm northwest of the line, tower | no report just now | 13 ft | ||||
| ISP New York, NY | destination | no report just now | 98 ft |
The highest airport on this list sits at 2,163 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At ISP when you get there the forecast at the estimated arrival, 3:23 pm EDT (19:23 UTC)
ISP has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 4/9383 WASHINGTON, DC., USA on the route, 777 nm along the route · security · ZDC
- 6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 22 nm from the route, 777 nm along the route · a VIP movement · today · ZDC
- 6/8800 Baltimore, MD, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 17 nm from the route, 806 nm along the route · drones kept away from a public gathering · starts Saturday 17 October · ZDC
- 5/2811 NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local 20 nm from the route, at the destination end · security · until 20 October · ZNY
Daylight
Sunset at GPT 6:28 pm CDT (23:28 UTC), at ISP 6:17 pm EDT (22:17 UTC) (civil twilight ends 6:44 pm EDT (22:44 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: Gulfport-Biloxi International, Long Island Mac Arthur Airport.