Gulfport-Biloxi International to Louisville Muhammad Ali International GPT → SDF
495 nautical miles (569 statute miles) north on a straight line, true course 019°, about 021° magnetic at the departure end (variation 2W). At 120 knots that is 4 h 12 min at the quickest height in today's winds (3,500 ft, a 2-knot headwind), arriving about 9:15 am EDT (13:15 UTC). Right now GPT is VFR, wind calm; SDF 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: 27 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 last 198 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
No pilot reports within 50 nautical miles of the line in the last three hours.
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 6 forecast points nearest it (MOB, JAN, BHM, HSV, BNA, LOU). 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 | 300° at 13 kt | +2 kt | 118 kt | 4 h 12 min | 9:15 am EDT (13:15 UTC) | |
| 5,500 ft | 300° at 12 kt | +2 kt | 118 kt | 4 h 12 min | 9:15 am EDT (13:15 UTC) | |
| 7,500 ft | 310° at 12 kt | +4 kt | 13 °C | 116 kt | 4 h 16 min | 9:19 am EDT (13:19 UTC) |
| 9,500 ft | 310° at 12 kt | +5 kt | 9 °C | 115 kt | 4 h 18 min | 9:21 am EDT (13:21 UTC) |
| 11,500 ft | 310° at 11 kt | +4 kt | 6 °C | 116 kt | 4 h 16 min | 9:19 am EDT (13:19 UTC) |
| 13,500 ft | 310° at 12 kt | +5 kt | 2 °C | 115 kt | 4 h 18 min | 9:21 am EDT (13:21 UTC) |
| 15,500 ft | 310° at 15 kt | +6 kt | -1 °C | 114 kt | 4 h 21 min | 9:24 am EDT (13:24 UTC) |
| 17,500 ft | 320° at 18 kt | +8 kt | -4 °C | 112 kt | 4 h 25 min | 9:28 am EDT (13:28 UTC) |
| 18,000 ft FL180 | 320° at 19 kt | +8 kt | -5 °C | 112 kt | 4 h 25 min | 9:28 am EDT (13:28 UTC) |
| 24,000 ft FL240 | 300° at 20 kt | +3 kt | -18 °C | 117 kt | 4 h 14 min | 9:17 am EDT (13:17 UTC) |
| 30,000 ft FL300 | 320° at 34 kt | +15 kt | -32 °C | 105 kt | 4 h 43 min | 9:46 am EDT (13:46 UTC) |
| 34,000 ft FL340 | 320° at 44 kt | +24 kt | -41 °C | 96 kt | 5 h 09 min | 10:12 am EDT (14:12 UTC) |
| 39,000 ft FL390 | 330° at 43 kt | +26 kt | -51 °C | 94 kt | 5 h 16 min | 10:19 am EDT (14:19 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; 35 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° |
| JAN | used from 99 nm out; 91 nm from the line | 240/10 | 260/15 18° | 280/10 11° | 290/6 6° | 290/15 -5° | 300/15 -17° | 320/35 -30° | 330/38 -40° | 330/39 -51° |
| BHM | used from 148 nm out; 66 nm from the line | 310/19 | 310/15 16° | 320/19 11° | 330/15 5° | 330/23 -5° | 320/14 -18° | 320/36 -32° | 330/44 -40° | 340/36 -51° |
| HSV | used from 247 nm out; 27 nm from the line | 300/20 | 310/14 16° | 310/18 10° | 310/15 4° | 320/19 -5° | 290/16 -18° | 320/36 -32° | 320/47 -41° | 330/42 -50° |
| BNA | used from 297 nm out; 42 nm from the line | 300/20 | 300/14 15° | 300/14 10° | 300/13 4° | 310/22 -5° | 280/24 -18° | 310/37 -33° | 310/50 -41° | 320/49 -51° |
| LOU | used from 445 nm out; 29 nm from the line | 300/16 | 310/19 15° | 310/17 9° | 300/15 4° | 300/26 -6° | 280/34 -19° | 290/30 -34° | 310/49 -42° | 310/58 -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 |
|---|---|---|---|---|---|---|---|
| GPT Gulfport, MS | departure | VFR | calm | 10+ mi | none | 28 ft | 3:53 am CDT (08:53 UTC) |
| MEI Meridian, MS | 119 nm out, 22 nm west of the line, tower | VFR | calm | 9 mi | none | 297 ft | 08:58 UTC |
| TCL Tuscaloosa, AL | 188 nm out, 16 nm southeast of the line, tower | marginal VFR Weather: mist | calm | 4 mi | none | 169 ft | 08:53 UTC |
| JFX Jasper, AL | 228 nm out, 16 nm east of the line | VFR Sky: scattered clouds at 200 feet Weather: mist | calm | 6 mi | none | 482 ft | 08:55 UTC |
| MSL Muscle Shoals, AL | 267 nm out, 15 nm northwest of the line | IFR Weather: mist | calm | 1.75 mi | none | 550 ft | 08:53 UTC |
| GZS Pulaski, TN | 307 nm out, 5 nm south of the line | low IFR Sky: overcast at 200 feet Weather: fog | calm | 0.25 mi | 200 ft | 688 ft | 08:55 UTC |
| BNA Nashville, TN | 366 nm out, 2 nm south of the line, tower | VFR | calm | 9 mi | none | 599 ft | 08:53 UTC |
| BWG Bowling Green, KY | 416 nm out, 5 nm west of the line | low IFR Sky: sky obscured at 200 feet Weather: fog | calm | 0.5 mi | 200 ft | 547 ft | 09:00 UTC |
| EKX Elizabethtown, KY | 465 nm out, 2 nm southeast of the line | low IFR Sky: overcast at 100 feet Weather: fog | calm | 0.25 mi | 100 ft | 775 ft | 08:55 UTC |
| SDF Louisville, KY | destination | marginal VFR Weather: mist | calm | 5 mi | none | 500 ft | 4:56 am EDT (08:56 UTC) |
The highest airport on this list sits at 775 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SDF when you get there the forecast at the estimated arrival, 9:15 am EDT (13:15 UTC)
Wind calm, visibility 3 miles, mist, clear skies marginal VFR
The whole forecast for SDF
- From Mon 4:00 am EDT (08:00 UTC): wind calm, visibility 3 miles, mist, clear skies
- At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): visibility ½ mile, fog, clear skies
- From Mon 10:00 am EDT (14:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 8:00 pm EDT (00:00 UTC): wind from the south at 3 knots, visibility more than 6 miles, clear skies
The forecast for GPT, the departure
- From Mon 1:00 am CDT (06:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, clear skies
Temporary flight restrictions on the line or within 25 nm of it
- 6/0708 Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC 4 nm from the route, 376 nm along the route · security · until 1 August · ZME
Daylight
Sunset at GPT 6:28 pm CDT (23:28 UTC), at SDF 7:09 pm EDT (23:09 UTC) (civil twilight ends 7:36 pm EDT (23:36 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, Louisville Muhammad Ali International.