Marion County to Valley International MAO → HRL
1,062 nautical miles (1,222 statute miles) west on a straight line, true course 248°, about 256° magnetic at the departure end (variation 8W). At 120 knots that is 9 h at the quickest height in today's winds (6,500 ft, a 2-knot headwind), arriving about 11:04 am CDT (16:04 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: 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
No SIGMET or AIRMET covers any part of this route right now.
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 MAO.
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 12 forecast points nearest it (FLO, CAE, SAV, ATL, CSG, MGM, MOB, MSY, LCH, PSX, CRP, BRO). 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 | 280° at 3 kt | +3 kt | 117 kt | 9 h 05 min | 11:09 am CDT (16:09 UTC) | |
| 6,500 ft | 310° at 4 kt | +2 kt | 16 °C | 118 kt | 9 h | 11:04 am CDT (16:04 UTC) |
| 8,500 ft | 320° at 8 kt | +3 kt | 13 °C | 117 kt | 9 h 05 min | 11:09 am CDT (16:09 UTC) |
| 10,500 ft | 310° at 9 kt | +5 kt | 10 °C | 115 kt | 9 h 14 min | 11:18 am CDT (16:18 UTC) |
| 12,500 ft | 300° at 11 kt | +7 kt | 6 °C | 113 kt | 9 h 24 min | 11:28 am CDT (16:28 UTC) |
| 14,500 ft | 290° at 13 kt | +9 kt | 2 °C | 111 kt | 9 h 34 min | 11:38 am CDT (16:38 UTC) |
| 16,500 ft | 290° at 15 kt | +11 kt | -2 °C | 109 kt | 9 h 45 min | 11:49 am CDT (16:49 UTC) |
| 18,000 ft FL180 | 290° at 17 kt | +12 kt | -5 °C | 108 kt | 9 h 50 min | 11:54 am CDT (16:54 UTC) |
| 24,000 ft FL240 | 280° at 21 kt | +16 kt | -16 °C | 104 kt | 10 h 13 min | 12:17 pm CDT (17:17 UTC) |
| 30,000 ft FL300 | 310° at 27 kt | +10 kt | -31 °C | 110 kt | 9 h 39 min | 11:43 am CDT (16:43 UTC) |
| 34,000 ft FL340 | 310° at 28 kt | +12 kt | -41 °C | 108 kt | 9 h 50 min | 11:54 am CDT (16:54 UTC) |
| 39,000 ft FL390 | 320° at 27 kt | +6 kt | -51 °C | 114 kt | 9 h 19 min | 11:23 am CDT (16:23 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| FLO | used from 0 nm out; 10 nm from the line | 300/16 | 320/14 12° | 320/19 7° | 290/26 5° | 260/39 -6° | 250/45 -18° | 230/62 -32° | 230/83 -40° | 230/64 -51° |
| CAE | used from 50 nm out; 24 nm from the line | 330/15 | 330/13 12° | 330/22 9° | 300/26 6° | 280/33 -7° | 270/38 -18° | 250/45 -33° | 240/46 -40° | 270/38 -49° |
| SAV | used from 149 nm out; 88 nm from the line | 280/23 | 300/22 14° | 290/27 11° | 270/31 6° | 260/36 -5° | 260/38 -17° | 240/49 -32° | 230/68 -40° | 230/59 -51° |
| ATL | used from 198 nm out; 74 nm from the line | 320/30 | 330/37 16° | 340/44 11° | 330/35 7° | 310/33 -6° | 300/38 -18° | 330/58 -33° | 330/48 -40° | 320/34 -49° |
| CSG | used from 248 nm out; 32 nm from the line | 310/24 | 340/35 17° | 340/37 12° | 330/22 8° | 310/30 -7° | 290/30 -18° | 340/57 -32° | 340/55 -41° | 320/33 -49° |
| MGM | used from 347 nm out; 40 nm from the line | 310/19 | 340/24 17° | 340/28 11° | 330/16 7° | 300/23 -7° | 320/32 -16° | 330/46 -33° | 330/55 -42° | 330/41 -50° |
| MOB | used from 446 nm out; 27 nm from the line | 330/5 | 330/6 19° | 340/6 11° | 330/10 7° | 320/16 -5° | 310/26 -16° | 340/40 -32° | 340/47 -42° | 350/51 -52° |
| MSY | used from 546 nm out; 39 nm from the line | 110/5 | 150/6 19° | L/V 12° | 310/5 7° | 310/13 -4° | 290/20 -16° | 330/36 -31° | 330/37 -41° | 350/43 -52° |
| LCH | used from 694 nm out; 88 nm from the line | 160/21 | 160/18 18° | 180/13 12° | 230/6 8° | 280/10 -4° | 260/13 -14° | 310/29 -30° | 320/32 -40° | 330/33 -53° |
| PSX | used from 843 nm out; 105 nm from the line | 160/24 | 160/23 19° | 180/14 15° | 210/11 9° | 240/8 -4° | 250/8 -13° | 320/14 -29° | 300/16 -40° | 340/17 -51° |
| CRP | used from 943 nm out; 85 nm from the line | 150/24 | 180/19 19° | 190/13 14° | 200/14 9° | 230/5 -4° | 170/6 -14° | 360/6 -29° | L/V -40° | 350/18 -52° |
| BRO | used from 992 nm out; 50 nm from the line | 150/22 | 160/18 18° | 160/13 14° | 150/9 10° | 050/5 -3° | L/V -15° | 100/13 -29° | 120/15 -40° | 080/9 -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 |
|---|---|---|---|---|---|---|---|
| MAO Marion, SC | departure | no report just now | 92 ft | ||||
| FLO Florence, SC | 20 nm out, 8 nm north of the line, tower | no report just now | 146 ft | ||||
| AGS Augusta, GA | 139 nm out, 5 nm northwest of the line, tower | no report just now | 145 ft | ||||
| MCN Macon, GA | 238 nm out, 5 nm northeast of the line, tower | no report just now | 354 ft | ||||
| TOI Troy, AL | 367 nm out, 8 nm north of the line, tower | no report just now | 397 ft | ||||
| MOB Mobile, AL | 496 nm out, 6 nm south of the line, tower | no report just now | 218 ft | ||||
| NEW New Orleans, LA | 595 nm out, 3 nm west of the line, tower | no report just now | 7 ft | ||||
| PTN Patterson, LA | 665 nm out, 16 nm northwest of the line | no report just now | 8 ft | ||||
| HRL Harlingen, TX | destination | no report just now | 36 ft |
The highest airport on this list sits at 397 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At HRL when you get there the forecast at the estimated arrival, 11:04 am CDT (16:04 UTC)
HRL has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/6783 Perry, GA, Friday, October 9, 2026 through Monday, October 19, 2026 UTC 9 nm from the route, 248 nm along the route · drones kept away from a public gathering · until 19 October · ZTL
- 5/6914 South Padre Island, TX, Tuesday, May 6, 2025 Local 21 nm from the route, at the destination end · security · ended 6 May · ZHU
- 5/3679 Brownsville, TX, Thursday, January 1, 2026 through Friday, January 1, 2027 Local 23 nm from the route, at the destination end · security · until 1 January · ZHU
- 5/3678 Brownsville, TX, Thursday, January 1, 2026 through Friday, January 1, 2027 Local 23 nm from the route, at the destination end · security · until 1 January · ZHU
Daylight
Sunset at MAO 6:47 pm EDT (22:47 UTC), at HRL 7:04 pm CDT (00:04 UTC) (civil twilight ends 7:28 pm CDT (00:28 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: Marion County, Valley International.