George Bush Intcntl/Houston Airport to Greenville Spartanburg International IAH → GSP
727 nautical miles (836 statute miles) northeast on a straight line, true course 063°, about 060° magnetic at the departure end (variation 3E). At 120 knots that is 5 h 26 min at the quickest height in today's winds (24,000 ft, a 14-knot tailwind), arriving about 9:46 am EDT (13:46 UTC). Right now IAH is VFR, wind calm; GSP is VFR, wind from the west-northwest (290°) 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: 1,332 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). Near the route, 547 nm along the route.
- AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 10,000 ft. Over the last 119 nm of the route.
- AIRMET TANGO 5W: moderate turbulence above 18,000 ft (due to mountain wave) from 29,000 ft to 40,000 ft. Over the last 109 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Near the route, 667 nm along 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 IAH.
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 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 (HOU, LCH, JAN, BHM, ATL, GSP). 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 | 280° at 7 kt | −7 kt | 127 kt | 5 h 43 min | 10:03 am EDT (14:03 UTC) | |
| 5,500 ft | 300° at 8 kt | −5 kt | 125 kt | 5 h 49 min | 10:09 am EDT (14:09 UTC) | |
| 7,500 ft | 310° at 10 kt | −6 kt | 14 °C | 126 kt | 5 h 46 min | 10:06 am EDT (14:06 UTC) |
| 9,500 ft | 310° at 13 kt | −6 kt | 10 °C | 126 kt | 5 h 46 min | 10:06 am EDT (14:06 UTC) |
| 11,500 ft | 320° at 14 kt | −5 kt | 8 °C | 125 kt | 5 h 49 min | 10:09 am EDT (14:09 UTC) |
| 13,500 ft | 310° at 16 kt | −6 kt | 4 °C | 126 kt | 5 h 46 min | 10:06 am EDT (14:06 UTC) |
| 15,500 ft | 310° at 17 kt | −8 kt | 0 °C | 128 kt | 5 h 41 min | 10:01 am EDT (14:01 UTC) |
| 17,500 ft | 300° at 19 kt | −11 kt | -4 °C | 131 kt | 5 h 33 min | 9:53 am EDT (13:53 UTC) |
| 18,000 ft FL180 | 300° at 19 kt | −11 kt | -5 °C | 131 kt | 5 h 33 min | 9:53 am EDT (13:53 UTC) |
| 24,000 ft FL240 | 300° at 24 kt | −14 kt | -16 °C | 134 kt | 5 h 26 min | 9:46 am EDT (13:46 UTC) |
| 30,000 ft FL300 | 320° at 37 kt | −12 kt | -31 °C | 132 kt | 5 h 30 min | 9:50 am EDT (13:50 UTC) |
| 34,000 ft FL340 | 320° at 40 kt | −9 kt | -40 °C | 129 kt | 5 h 38 min | 9:58 am EDT (13:58 UTC) |
| 39,000 ft FL390 | 330° at 37 kt | −5 kt | -51 °C | 125 kt | 5 h 49 min | 10:09 am EDT (14:09 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| HOU | used from 0 nm out; 37 nm from the line | 160/22 | 150/27 19° | 180/16 14° | 250/7 9° | 270/10 -5° | 270/16 -13° | 310/23 -29° | 310/26 -40° | 330/20 -52° |
| LCH | used from 50 nm out; 50 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° |
| JAN | used from 199 nm out; 81 nm from the line | 230/10 | 270/13 18° | 270/11 12° | 310/11 6° | 300/15 -4° | 300/22 -16° | 310/33 -31° | 320/37 -41° | 330/41 -52° |
| BHM | used from 398 nm out; 65 nm from the line | 310/19 | 330/20 17° | 320/28 11° | 340/21 6° | 310/22 -7° | 330/33 -17° | 330/50 -32° | 330/57 -41° | 330/41 -50° |
| ATL | used from 547 nm out; 40 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° |
| GSP | used from 647 nm out; 55 nm from the line | 320/22 | 340/19 13° | 320/18 8° | 310/24 5° | 300/34 -7° | 300/36 -18° | 290/30 -33° | 300/32 -39° | 320/42 -49° |
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 |
|---|---|---|---|---|---|---|---|
| IAH Houston, TX | departure | VFR Sky: a few clouds at 3,500 feet, overcast at 23,000 feet | calm | 10+ mi | 23,000 ft | 95 ft | 2:53 am CDT (07:53 UTC) |
| BMT Beaumont, TX | 50 nm out, 23 nm southeast of the line | VFR | calm | 10+ mi | none | 31 ft | 08:15 UTC |
| DRI De Ridder, LA | 119 nm out, 4 nm southwest of the line | VFR | calm | 9 mi | none | 201 ft | 08:15 UTC |
| AEX Alexandria, LA | 169 nm out, 8 nm northwest of the line, tower | VFR | calm | 10+ mi | none | 88 ft | 07:53 UTC |
| HEZ Natchez, MS | 229 nm out, 5 nm southeast of the line | VFR | from the south (170°) at 4 knots | 10+ mi | none | 272 ft | 07:56 UTC |
| JAN Jackson, MS | 309 nm out, 8 nm northwest of the line, tower | VFR | calm | 10+ mi | none | 346 ft | 07:54 UTC |
| MEI Meridian, MS | 368 nm out, 20 nm south of the line, tower | VFR | calm | 10+ mi | none | 297 ft | 07:58 UTC |
| TCL Tuscaloosa, AL | 438 nm out, 7 nm north of the line, tower | VFR Weather: mist | from the northeast (040°) at 3 knots | 6 mi | none | 169 ft | 07:53 UTC |
| ASN Talladega, AL | 518 nm out, 6 nm southeast of the line | VFR | calm | 10+ mi | none | 528 ft | 07:55 UTC |
| RYY Atlanta, GA | 597 nm out, 7 nm southeast of the line, tower | VFR | from the west-northwest (290°) at 6 knots | 10+ mi | none | 1,040 ft | 07:50 UTC |
| AJR Cornelia, GA | 657 nm out, 1 nm northwest of the line | VFR | from the west-northwest (290°) at 6 knots | 7 mi | none | 1,447 ft | 07:55 UTC |
| GSP Greer, SC | destination | VFR | from the west-northwest (290°) at 6 knots | 10+ mi | none | 963 ft | 3:53 am EDT (07:53 UTC) |
The highest airport on this list sits at 1,447 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At GSP when you get there the forecast at the estimated arrival, 9:46 am EDT (13:46 UTC)
Wind from the northwest at 6 knots, visibility more than 6 miles, clear skies VFR
The whole forecast for GSP
- From Mon 2:00 am EDT (06:00 UTC): wind from the west at 6 knots, visibility more than 6 miles, a few clouds at 5,000 feet
- From Mon 8:00 am EDT (12:00 UTC): wind from the northwest at 6 knots, visibility more than 6 miles, clear skies
- From Mon 10:00 am EDT (14:00 UTC): wind from the north-northwest at 10 knots, gusting to 18, visibility more than 6 miles, clear skies
- From Mon 5:00 pm EDT (21:00 UTC): wind from the north-northwest at 5 knots, visibility more than 6 miles, a few clouds at 25,000 feet
- From Mon 9:00 pm EDT (01:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 25,000 feet
The forecast for IAH, the departure
- From Mon 1:00 am CDT (06:00 UTC): wind from the south-southeast at 7 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 4:00 am CDT (09:00 UTC): wind from the east-southeast at 4 knots, visibility more than 6 miles, scattered clouds at 2,500 feet, scattered clouds at 25,000 feet
- From Mon 12:00 pm CDT (17:00 UTC): wind from the southeast at 11 knots, visibility more than 6 miles, scattered clouds at 3,500 feet, a broken layer at 25,000 feet
- 30% chance between Mon 1:00 pm CDT (18:00 UTC) and 5:00 pm CDT (22:00 UTC): light rain showers
Temporary flight restrictions on the line or within 25 nm of it
No temporary flight restriction on or near this route right now.
Daylight
Sunset at IAH 6:54 pm CDT (23:54 UTC), at GSP 6:58 pm EDT (22:58 UTC) (civil twilight ends 7:23 pm EDT (23:23 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: George Bush Intcntl/Houston Airport, Greenville Spartanburg International.