Plan a flight · Mon 7:37 am EDT (11:37 UTC)

Greenbrier Valley Airport to George Bush Intcntl/Houston Airport LWB → IAH

880 nautical miles (1,013 statute miles) southwest on a straight line, true course 242°, about 250° magnetic at the departure end (variation 8W). At 120 knots that is 7 h 20 min at the quickest height in today's winds (39,000 ft, no wind along the track), arriving about 1:57 pm CDT (18:57 UTC). Right now LWB is marginal VFR, wind from the west (280°) at 6 knots; IAH is VFR, wind from the east (090°) at 5 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). Over the first 346 nm of the route.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the first 59 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the first 257 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, 49 nm along the route.
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 route from 455 to 653 nm out.

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 LWB.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

E75L descending, 35 nm southeast, 7:09 am EDT (11:09 UTC): a broken layer above 3,700 ft. At the departure end, 35 nm southeast of the line.
as filed, and in English
```
ROA UA /OV ROA/TM 1109/FLDURD/TP E75L/SK BKN037 050
```
Report
a routine report filed through ROA
Where
over ROA
Time
11:09 UTC
Height
during the descent
Aircraft
E75L
Sky
BKN037 at 5,000 ft
B738 at 33,000 ft, 39 nm north, 4:44 am EDT (08:44 UTC): -39 °C, wind 350° at 65 knots, remarks: produced by skypath. At the departure end, 39 nm north of the line.
as filed, and in English
```
EKN UA /OV EKN188027 /TM 0844 /FL330 /TP B738 /TA M39 /WV 35065KT /TB MOD-CONS /RM PRODUCED BY SKYPATH
```
Report
a routine report filed through EKN
Where
27 nm south (188°) of EKN
Time
08:44 UTC
Height
at 33,000 ft
Aircraft
B738
Temperature
−39 °C
Wind
from 350° at 65 knots
Turbulence
mod-cons
Remarks
produced by skypath
CRJ9 at 6,000 ft, 29 nm southeast, 6:10 am EDT (10:10 UTC): a broken layer from 4,600 ft to 5,800 ft. 129 nm along the route, 29 nm southeast of the line.
as filed, and in English
```
TRI UA /OV BOOIE/TM 1010/FL060/TP CRJ9/SK BKN046-TOP058
```
Report
a routine report filed through TRI
Where
booie
Time
10:10 UTC
Height
at 6,000 ft
Aircraft
CRJ9
Sky
a broken layer from 4,600 ft, tops 5,800 ft
C56X at 1,000 ft, 33 nm southeast, 7:04 am EDT (11:04 UTC): remarks: during the climb runway 20 departure. 287 nm along the route, 33 nm southeast of the line.
as filed, and in English
```
CHA UA /OV CHA/TM 1104/FL010/TP C56X/SK TOP010/RM DURC. RY 20 DEPARTURE
```
Report
a routine report filed through CHA
Where
over CHA
Time
11:04 UTC
Height
at 1,000 ft
Aircraft
C56X
Sky
TOP010
Remarks
during the climb runway 20 departure
CRJ9 at 1,000 ft, 33 nm southeast, 6:15 am EDT (10:15 UTC): remarks: during the climb runway 20 departure. 287 nm along the route, 33 nm southeast of the line.
as filed, and in English
```
CHA UA /OV CHA/TM 1015/FL010/TP CRJ9/SK TOP010/RM DURC. RY 20 DEPARTURE
```
Report
a routine report filed through CHA
Where
over CHA
Time
10:15 UTC
Height
at 1,000 ft
Aircraft
CRJ9
Sky
TOP010
Remarks
during the climb runway 20 departure
BE36 at 8,000 ft, 43 nm southeast, 7:18 am EDT (11:18 UTC): no turbulence, no icing, remarks: ZME65. 613 nm along the route, 43 nm southeast of the line.
as filed, and in English
```
JAN UA /OV MHZ225040/TM 1118/FL080/TP BE36/TB NEG/IC NEG/RM ZME65
```
Report
a routine report filed through JAN
Where
40 nm southwest (225°) of MHZ
Time
11:18 UTC
Height
at 8,000 ft
Aircraft
BE36
Turbulence
none
Icing
none
Remarks
ZME65
SF30 at 21,000 ft, 2 nm south, 5:35 am EDT (09:35 UTC): light rime icing, -10 °C, remarks: zhu. At the destination end, 2 nm south of the line.
as filed, and in English
```
IAH UA /OV DAS02002/TM 0935/FL210/TP SF30/TA M10/IC LGT RIME/RM ZHU
```
Report
a routine report filed through IAH
Where
DAS02002
Time
09:35 UTC
Height
at 21,000 ft
Aircraft
SF30
Temperature
−10 °C
Icing
light rime
Remarks
zhu

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 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 9 forecast points nearest it (ROA, TRI, TYS, HSV, MEM, JAN, SHV, LCH, HOU). 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	290° at 10 kt	+6 kt	11 °C	114 kt	7 h 43 min	2:20 pm CDT (19:20 UTC)
6,500 ft	310° at 10 kt	+4 kt	15 °C	116 kt	7 h 35 min	2:12 pm CDT (19:12 UTC)
8,500 ft	320° at 13 kt	+3 kt	11 °C	117 kt	7 h 31 min	2:08 pm CDT (19:08 UTC)
10,500 ft	320° at 13 kt	+2 kt	8 °C	118 kt	7 h 27 min	2:04 pm CDT (19:04 UTC)
12,500 ft	320° at 14 kt	+2 kt	5 °C	118 kt	7 h 27 min	2:04 pm CDT (19:04 UTC)
14,500 ft	320° at 16 kt	+3 kt	1 °C	117 kt	7 h 31 min	2:08 pm CDT (19:08 UTC)
16,500 ft	320° at 18 kt	+4 kt	-3 °C	116 kt	7 h 35 min	2:12 pm CDT (19:12 UTC)
18,000 ft FL180	320° at 20 kt	+5 kt	-6 °C	115 kt	7 h 39 min	2:16 pm CDT (19:16 UTC)
24,000 ft FL240	320° at 21 kt	+5 kt	-17 °C	115 kt	7 h 39 min	2:16 pm CDT (19:16 UTC)
30,000 ft FL300	320° at 37 kt	+3 kt	-31 °C	117 kt	7 h 31 min	2:08 pm CDT (19:08 UTC)
34,000 ft FL340	330° at 42 kt	+2 kt	-41 °C	118 kt	7 h 27 min	2:04 pm CDT (19:04 UTC)
39,000 ft FL390	330° at 38 kt	0	-51 °C	120 kt	7 h 20 min	1:57 pm CDT (18:57 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
ROA	used from 0 nm out; 47 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°
TRI	used from 49 nm out; 57 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°
TYS	used from 148 nm out; 44 nm from the line	330/16	350/32 14°	350/37 9°	340/30 5°	330/28 -6°	340/36 -19°	330/40 -33°	330/51 -41°	330/36 -51°
HSV	used from 297 nm out; 45 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°
MEM	used from 445 nm out; 94 nm from the line	250/19	260/19 17°	270/20 12°	270/16 6°	270/21 -6°	290/27 -17°	300/37 -30°	300/49 -40°	310/40 -51°
JAN	used from 494 nm out; 72 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°
SHV	used from 643 nm out; 97 nm from the line	210/20	210/20 18°	230/20 11°	240/16 7°	270/17 -7°	250/11 -15°	300/34 -30°	310/34 -40°	320/36 -51°
LCH	used from 742 nm out; 61 nm from the line	170/21	160/23 18°	170/13 13°	170/6 8°	300/12 -7°	280/16 -14°	320/27 -30°	330/23 -41°	340/38 -51°
HOU	used from 841 nm out; 34 nm from the line	180/22	180/20 16°	170/7 15°	L/V 8°	220/11 -6°	260/15 -13°	310/20 -30°	320/20 -40°	350/32 -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
LWB Lewisburg, WV	departure	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)
JFZ Richlands, VA	79 nm out, 10 nm south of the line	low IFR Sky: overcast at 200 feet Weather: mist	from the northwest (310°) at 5 knots	1 mi	200 ft	2,653 ft	11:15 UTC
LNP Wise, VA	119 nm out, 5 nm northeast of the line	low IFR Sky: overcast at 200 feet Weather: light drizzle	from the west-northwest (300°) at 6 knots	4 mi	200 ft	2,684 ft	11:15 UTC
TYS Knoxville, TN	208 nm out, 23 nm southeast of the line, tower	VFR Sky: scattered clouds at 3,300 feet Weather: patches of fog	from the south-southwest (210°) at 5 knots	9 mi	none	986 ft	11:02 UTC
BGF Winchester, TN	316 nm out, 4 nm south of the line	VFR	calm	10+ mi	none	978 ft	11:15 UTC
HSV Huntsville, AL	366 nm out, 13 nm southeast of the line, tower	VFR Sky: a few clouds at 15,000 feet	calm	10+ mi	none	628 ft	10:53 UTC
TUP Tupelo, MS	455 nm out, 21 nm northwest of the line, tower	IFR Weather: mist	calm	1.75 mi	none	346 ft	11:32 UTC
GWO Greenwood, MS	544 nm out, 19 nm north of the line, tower	VFR	from the south (190°) at 3 knots	10+ mi	none	162 ft	10:53 UTC
MLU Monroe, LA	653 nm out, 25 nm northwest of the line, tower	VFR	calm	10+ mi	none	78 ft	10:53 UTC
AEX Alexandria, LA	712 nm out, 19 nm southeast of the line, tower	low IFR Weather: fog	calm	0.25 mi	none	88 ft	11:33 UTC
IAH Houston, TX	destination	VFR Sky: a few clouds at 2,500 feet, a broken layer at 23,000 feet	from the east (090°) at 5 knots	10+ mi	23,000 ft	95 ft	5:53 am CDT (10:53 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 IAH when you get there the forecast at the estimated arrival, 1:57 pm CDT (18:57 UTC)

Wind from the southeast at 12 knots, visibility more than 6 miles, scattered clouds at 3,500 feet, a broken layer at 25,000 feet VFR

30% chance between Mon 1:00 pm CDT (18:00 UTC) and 4:00 pm CDT (21:00 UTC): light rain showers

The whole forecast for IAH

From Mon 7:00 am CDT (12:00 UTC): wind from the east-southeast at 6 knots, visibility more than 6 miles, scattered clouds at 2,500 feet, scattered clouds at 25,000 feet
From Mon 11:00 am CDT (16:00 UTC): wind from the southeast at 12 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 4:00 pm CDT (21:00 UTC): light rain showers
From Mon 4:00 pm CDT (21:00 UTC): wind from the southeast at 13 knots, gusting to 20, visibility more than 6 miles, scattered clouds at 10,000 feet
From Mon 10:00 pm CDT (03:00 UTC): wind from the southeast at 6 knots, visibility more than 6 miles, scattered clouds at 1,500 feet, overcast at 5,000 feet
At times between Tue 5:00 am CDT (10:00 UTC) and 8:00 am CDT (13:00 UTC): overcast at 1,500 feet

The forecast for LWB, the departure

From Mon 8:00 am EDT (12:00 UTC): wind from the west-northwest at 8 knots, gusting to 18, visibility more than 6 miles, scattered clouds at 1,100 feet, a broken layer at 7,000 feet
At times between Mon 8:00 am EDT (12:00 UTC) and 11:00 am EDT (15:00 UTC): visibility 3 miles, light drizzle, mist, overcast at 1,100 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 3,000 feet
From Mon 3:00 pm EDT (19:00 UTC): wind from the west-northwest at 9 knots, gusting to 20, visibility more than 6 miles, scattered clouds at 4,000 feet
From Mon 7:00 pm EDT (23:00 UTC): wind from the west at 3 knots, visibility more than 6 miles, scattered clouds at 15,000 feet
From Tue 3:00 am EDT (07:00 UTC): wind calm, visibility 3 miles, mist, scattered clouds at 15,000 feet

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 LWB 6:48 pm EDT (22:48 UTC), at IAH 6:54 pm CDT (23:54 UTC) (civil twilight ends 7:18 pm CDT (00:18 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

Radar now, the Northeast · loop National Weather Service

Radar now, the Southeast · loop National Weather Service

Radar now, the lower Mississippi valley · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

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: Greenbrier Valley Airport, George Bush Intcntl/Houston Airport.