George Bush Intcntl/Houston Airport to Greenbrier Valley Airport IAH → LWB
880 nautical miles (1,013 statute miles) northeast on a straight line, true course 054°, about 051° magnetic at the departure end (variation 3E). At 120 knots that is 6 h 56 min at the quickest height in today's winds (3,500 ft, a 7-knot tailwind), arriving about 10:58 am EDT (14:58 UTC). Right now IAH is VFR, wind calm; LWB is marginal VFR, wind from the west (280°) 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: 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 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 356 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 247 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. Near the route, 791 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 40 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 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 10 forecast points nearest it (HOU, LCH, SHV, JAN, BHM, HSV, TYS, TRI, CRW, ROA). 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 8 kt | −7 kt | 127 kt | 6 h 56 min | 10:58 am EDT (14:58 UTC) | |
| 5,500 ft | 300° at 10 kt | −4 kt | 11 °C | 124 kt | 7 h 06 min | 11:08 am EDT (15:08 UTC) |
| 7,500 ft | 310° at 13 kt | −4 kt | 13 °C | 124 kt | 7 h 06 min | 11:08 am EDT (15:08 UTC) |
| 9,500 ft | 310° at 15 kt | −4 kt | 10 °C | 124 kt | 7 h 06 min | 11:08 am EDT (15:08 UTC) |
| 11,500 ft | 320° at 17 kt | −1 kt | 6 °C | 121 kt | 7 h 16 min | 11:18 am EDT (15:18 UTC) |
| 13,500 ft | 320° at 18 kt | −1 kt | 3 °C | 121 kt | 7 h 16 min | 11:18 am EDT (15:18 UTC) |
| 15,500 ft | 320° at 19 kt | −3 kt | -1 °C | 123 kt | 7 h 09 min | 11:11 am EDT (15:11 UTC) |
| 17,500 ft | 320° at 21 kt | −4 kt | -5 °C | 124 kt | 7 h 06 min | 11:08 am EDT (15:08 UTC) |
| 18,000 ft FL180 | 320° at 21 kt | −4 kt | -6 °C | 124 kt | 7 h 06 min | 11:08 am EDT (15:08 UTC) |
| 24,000 ft FL240 | 320° at 24 kt | −5 kt | -17 °C | 125 kt | 7 h 02 min | 11:04 am EDT (15:04 UTC) |
| 30,000 ft FL300 | 320° at 38 kt | −6 kt | -32 °C | 126 kt | 6 h 59 min | 11:01 am EDT (15:01 UTC) |
| 34,000 ft FL340 | 320° at 43 kt | −4 kt | -40 °C | 124 kt | 7 h 06 min | 11:08 am EDT (15:08 UTC) |
| 39,000 ft FL390 | 330° at 38 kt | −1 kt | -50 °C | 121 kt | 7 h 16 min | 11:18 am EDT (15:18 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; 39 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 49 nm out; 61 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° |
| SHV | used from 148 nm out; 77 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° |
| JAN | used from 198 nm out; 89 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 396 nm out; 93 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° |
| HSV | used from 445 nm out; 48 nm from the line | 310/20 | 330/20 16° | 320/27 11° | 340/23 5° | 320/23 -7° | 340/30 -17° | 320/50 -33° | 330/61 -41° | 340/41 -50° |
| TYS | used from 593 nm out; 56 nm from the line | 320/20 | 340/18 11° | 340/32 9° | 340/36 4° | 330/37 -7° | 330/38 -19° | 330/50 -34° | 330/53 -38° | 330/44 -48° |
| TRI | used from 692 nm out; 47 nm from the line | 330/22 11° | 330/29 7° | 330/32 3° | 330/36 -8° | 320/34 -19° | 320/36 -34° | 320/43 -39° | 320/46 -47° | |
| CRW | used from 791 nm out; 62 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° |
| ROA | used from 841 nm out; 44 nm from the line | 310/29 | 330/31 13° | 340/28 7° | 330/25 3° | 310/32 -8° | 300/32 -22° | 290/32 -31° | 270/35 -38° | 270/32 -47° |
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) |
| AEX Alexandria, LA | 168 nm out, 19 nm southeast of the line, tower | VFR | calm | 10+ mi | none | 88 ft | 07:53 UTC |
| MLU Monroe, LA | 227 nm out, 25 nm northwest of the line, tower | VFR | from the south-southwest (210°) at 5 knots | 10+ mi | none | 78 ft | 07:53 UTC |
| GWO Greenwood, MS | 336 nm out, 19 nm north of the line, tower | VFR | calm | 10+ mi | none | 162 ft | 07:53 UTC |
| TUP Tupelo, MS | 425 nm out, 21 nm northwest of the line, tower | VFR | calm | 7 mi | none | 346 ft | 07:53 UTC |
| HSV Huntsville, AL | 514 nm out, 13 nm southeast of the line, tower | VFR | calm | 10+ mi | none | 628 ft | 07:53 UTC |
| BGF Winchester, TN | 564 nm out, 4 nm south of the line | IFR Sky: scattered clouds at 100 feet Weather: mist | calm | 2.5 mi | none | 978 ft | 07:35 UTC |
| TYS Knoxville, TN | 672 nm out, 23 nm southeast of the line, tower | VFR Sky: overcast at 3,100 feet | from the south-southwest (200°) at 3 knots | 10+ mi | 3,100 ft | 986 ft | 07:53 UTC |
| LNP Wise, VA | 761 nm out, 5 nm northeast of the line | low IFR Sky: overcast at 400 feet Weather: mist | from the west-northwest (290°) at 6 knots | 3 mi | 400 ft | 2,684 ft | 07:55 UTC |
| JFZ Richlands, VA | 801 nm out, 10 nm south of the line | low IFR Sky: overcast at 200 feet Weather: fog | from the northwest (310°) at 7 knots | 0.25 mi | 200 ft | 2,653 ft | 07:55 UTC |
| LWB Lewisburg, WV | destination | marginal VFR Sky: overcast at 1,900 feet | from the west (280°) at 6 knots | 10+ mi | 1,900 ft | 2,301 ft | 1:55 am EDT (05:55 UTC) |
The highest airport on this list sits at 2,684 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At LWB when you get there the forecast at the estimated arrival, 10:58 am EDT (14:58 UTC)
Wind from the west-northwest at 11 knots, gusting to 26, visibility 3 miles, mist, a broken layer at 500 feet IFR
The whole forecast for LWB
- From Mon 2:00 am EDT (06:00 UTC): wind from the west at 9 knots, gusting to 19, visibility 5 miles, mist, a broken layer at 800 feet
- At times between Mon 2:00 am EDT (06:00 UTC) and 6:00 am EDT (10:00 UTC): visibility 2 miles, light rain showers, mist, overcast at 200 feet
- From Mon 6:00 am EDT (10:00 UTC): wind from the west-northwest at 11 knots, gusting to 23, visibility 3 miles, mist, scattered clouds at 400 feet
- At times between Mon 6:00 am EDT (10:00 UTC) and 8:00 am EDT (12:00 UTC): visibility 2 miles, light rain showers, mist, overcast at 400 feet
- From Mon 8:00 am EDT (12:00 UTC): wind from the west-northwest at 11 knots, gusting to 26, visibility 3 miles, mist, a broken layer at 500 feet
- From Mon 11:00 am EDT (15:00 UTC): wind from the northwest at 11 knots, gusting to 22, visibility more than 6 miles, a broken layer at 600 feet
- From Mon 1:00 pm EDT (17:00 UTC): wind from the west-northwest at 10 knots, gusting to 20, visibility more than 6 miles, scattered clouds at 1,200 feet
- From Mon 5:00 pm EDT (21:00 UTC): wind from the west at 6 knots, visibility more than 6 miles, scattered clouds at 15,000 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 LWB 6:48 pm EDT (22:48 UTC) (civil twilight ends 7:15 pm EDT (23:15 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, Greenbrier Valley Airport.