Plan a flight · Sun 8:48 pm EDT (00:48 UTC)

Piedmont Triad International to George Bush Intcntl/Houston Airport GSO → IAH

856 nautical miles (985 statute miles) west on a straight line, true course 249°, about 257° magnetic at the departure end (variation 8W). At 120 knots that is 7 h 35 min at the quickest height in today's winds (6,500 ft, a 7-knot headwind), arriving about 3:23 am CDT (08:23 UTC), after sunset at the destination. Right now GSO is VFR, wind from the southwest (230°) at 7 knots; IAH is VFR, wind from the east-southeast (120°) at 11 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 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 TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 7,000 ft. Over the route from 40 to 219 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 149 to 259 nm out.
AIRMET TANGO 6W: moderate turbulence above 18,000 ft from 28,000 ft to 40,000 ft. Over the route from 319 to 438 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 GSO.

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

B763 at 3,000 ft, 7 nm northeast, 7:26 pm EDT (23:26 UTC): a broken layer above 3,000 ft. At the departure end, 7 nm northeast of the line.
as filed, and in English
```
GSO UA /OV HEVED/TM 2326/FL030/TP B763/SK BKN030
```
Report
a routine report filed through GSO
Where
heved
Time
23:26 UTC
Height
at 3,000 ft
Aircraft
B763
Sky
a broken layer from 3,000 ft
B763 descending, 6 nm northeast, 7:24 pm EDT (23:24 UTC): a broken layer above 3,000 ft. At the departure end, 6 nm northeast of the line.
as filed, and in English
```
GSO UA /OV 10 NE GSO/TM 2324/FLDURD/TP B763/SK BKN030
```
Report
a routine report filed through GSO
Where
10 northeast gso
Time
23:24 UTC
Height
during the descent
Aircraft
B763
Sky
a broken layer from 3,000 ft
CRJ7 descending, 4 nm southwest, 6:32 pm EDT (22:32 UTC): a broken layer above 4,500 ft. At the departure end, 4 nm southwest of the line.
as filed, and in English
```
GSO UA /OV GSO/TM 2232/FLDURD/TP CRJ7/SK BKN045
```
Report
a routine report filed through GSO
Where
over GSO
Time
22:32 UTC
Height
during the descent
Aircraft
CRJ7
Sky
a broken layer from 4,500 ft
SF50 at 7,000 ft, 11 nm northwest, 6:37 pm EDT (22:37 UTC): no turbulence, no icing, imc, remarks: ZTLFD-45. 60 nm along the route, 11 nm northwest of the line.
as filed, and in English
```
HKY UA /OV BZM/TM 2237/FL070/TP SF50/SK IMC/TB NEG/IC NEG/RM ZTLFD-45
```
Report
a routine report filed through HKY
Where
over BZM
Time
22:37 UTC
Height
at 7,000 ft
Aircraft
SF50
Sky
instrument conditions
Turbulence
none
Icing
none
Remarks
ZTLFD-45
CRJ9 at 30,000 ft, 48 nm north, 6:46 pm EDT (22:46 UTC): light to moderate turbulence above 30,000 ft, remarks: ZTLFD-42. 149 nm along the route, 48 nm north of the line.
as filed, and in English
```
TYS UA /OV VXV090040/TM 2246/FL300/TP CRJ9/TB CONS LGT OCNL MOD 300/RM ZTLFD-42
```
Report
a routine report filed through TYS
Where
40 nm east (090°) of VXV
Time
22:46 UTC
Height
at 30,000 ft
Aircraft
CRJ9
Turbulence
continuous light occasional moderate at 30,000 ft
Remarks
ZTLFD-42
C55B at 3,000 ft, 44 nm south, 6:29 pm EDT (22:29 UTC): a routine report with nothing remarked on. 229 nm along the route, 44 nm south of the line.
as filed, and in English
```
LZU UA /OV 070010/TM 2229/FL030/TP C55B/SK BASE030
```
Report
a routine report filed through LZU
Where
wind from 070° at 10 knots
Time
22:29 UTC
Height
at 3,000 ft
Aircraft
C55B
Sky
BASE030
B712 at 3,000 ft, 35 nm northwest, 7:13 pm EDT (23:13 UTC): scattered clouds from 3,000 ft to 3,200 ft; clear from 3,200 ft to 60,000 ft. 259 nm along the route, 35 nm northwest of the line.
as filed, and in English
```
CHA UA /OV CHA180005/TM 2313/FL030/TP B712/SK SCT030-TOP032/SKC
```
Report
a routine report filed through CHA
Where
5 nm south (180°) of CHA
Time
23:13 UTC
Height
at 3,000 ft
Aircraft
B712
Sky
SCT030-TOP032 C
CRJ9 at 3,000 ft, 39 nm northwest, 6:51 pm EDT (22:51 UTC): overcast from 3,000 ft to 4,000 ft. 259 nm along the route, 39 nm northwest of the line.
as filed, and in English
```
CHA UA /OV 090005/TM 2251/FL030/TP CRJ9/SK OVC030-TOP040
```
Report
a routine report filed through CHA
Where
wind from 090° at 5 knots
Time
22:51 UTC
Height
at 3,000 ft
Aircraft
CRJ9
Sky
overcast from 3,000 ft, tops 4,000 ft
B712 at 30,000 ft, 24 nm southeast, 7:09 pm EDT (23:09 UTC): light chop turbulence, remarks: ZME46. 438 nm along the route, 24 nm southeast of the line.
as filed, and in English
```
CBM UA /OV IGB135050/TM 2309/FL300/TP B712/TB CONS LGT CHOP/RM ZME46
```
Report
a routine report filed through CBM
Where
50 nm southeast (135°) of IGB
Time
23:09 UTC
Height
at 30,000 ft
Aircraft
B712
Turbulence
continuous light chop
Remarks
ZME46
A21N at 34,000 ft, 24 nm southeast, 7:05 pm EDT (23:05 UTC): light to moderate chop turbulence, remarks: ZME46. 438 nm along the route, 24 nm southeast of the line.
as filed, and in English
```
CBM UA /OV IGB135050/TM 2305/FL340/TP A21N/TB LGT-MOD CHOP/RM ZME46
```
Report
a routine report filed through CBM
Where
50 nm southeast (135°) of IGB
Time
23:05 UTC
Height
at 34,000 ft
Aircraft
A21N
Turbulence
light to moderate chop
Remarks
ZME46
UAL1770 at 34,000 ft, 41 nm south, 6:55 pm EDT (22:55 UTC): light chop turbulence, wind 349° at 61 knots. 448 nm along the route, 41 nm south of the line.
as filed, and in English
```
ARP UAL1770 3230N 08800W 2255 F340 349/061KT TB CONT LGT CHOP CONT LGT TURB IC
```
Report
a routine report filed through ARP
B738 at 34,000 ft, 35 nm southeast, 6:07 pm EDT (22:07 UTC): light chop turbulence, remarks: zhu. 637 nm along the route, 35 nm southeast of the line.
as filed, and in English
```
HEZ UA /OV HEZ180025/TM 2207/FL340/TP B738/TB OCNL LGT CHOP/RM ZHU
```
Report
a routine report filed through HEZ
Where
25 nm south (180°) of HEZ
Time
22:07 UTC
Height
at 34,000 ft
Aircraft
B738
Turbulence
occasional light chop
Remarks
zhu
B39M at 32,000 ft, 5 nm south, 7:07 pm EDT (23:07 UTC): light chop turbulence, remarks: zhu. 687 nm along the route, 5 nm south of the line.
as filed, and in English
```
AEX UA /OV AEX/TM 2307/FL320/TP B39M/TB OCNL LGT CHOP/RM ZHU
```
Report
a routine report filed through AEX
Where
over AEX
Time
23:07 UTC
Height
at 32,000 ft
Aircraft
B39M
Turbulence
occasional light chop
Remarks
zhu
E75L at 27,000 ft, 48 nm southeast, 8:20 pm EDT (00:20 UTC): remarks: zhu. 747 nm along the route, 48 nm southeast of the line.
as filed, and in English
```
LCH UA /OV LCH08510/TM 0020/FL270/TP E75L/TB CONS CHOP/RM ZHU
```
Report
a routine report filed through LCH
Where
LCH08510
Time
00:20 UTC
Height
at 27,000 ft
Aircraft
E75L
Turbulence
continuous chop
Remarks
zhu

2 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 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 7 forecast points nearest it (RDU, GSP, ATL, BHM, JAN, 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	300° at 12 kt	+8 kt		112 kt	7 h 39 min	3:27 am CDT (08:27 UTC)
6,500 ft	310° at 14 kt	+7 kt	14 °C	113 kt	7 h 35 min	3:23 am CDT (08:23 UTC)
8,500 ft	300° at 15 kt	+10 kt	12 °C	110 kt	7 h 47 min	3:35 am CDT (08:35 UTC)
10,500 ft	290° at 18 kt	+12 kt	8 °C	108 kt	7 h 56 min	3:44 am CDT (08:44 UTC)
12,500 ft	290° at 20 kt	+14 kt	5 °C	106 kt	8 h 05 min	3:53 am CDT (08:53 UTC)
14,500 ft	290° at 22 kt	+15 kt	1 °C	105 kt	8 h 09 min	3:57 am CDT (08:57 UTC)
16,500 ft	290° at 23 kt	+16 kt	-2 °C	104 kt	8 h 14 min	4:02 am CDT (09:02 UTC)
18,000 ft FL180	290° at 24 kt	+17 kt	-5 °C	103 kt	8 h 19 min	4:07 am CDT (09:07 UTC)
24,000 ft FL240	280° at 26 kt	+21 kt	-17 °C	99 kt	8 h 39 min	4:27 am CDT (09:27 UTC)
30,000 ft FL300	290° at 31 kt	+22 kt	-32 °C	98 kt	8 h 44 min	4:32 am CDT (09:32 UTC)
34,000 ft FL340	290° at 30 kt	+20 kt	-41 °C	100 kt	8 h 34 min	4:22 am CDT (09:22 UTC)
39,000 ft FL390	290° at 31 kt	+23 kt	-51 °C	97 kt	8 h 49 min	4:37 am CDT (09:37 UTC)

Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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
RDU	used from 0 nm out; 79 nm from the line	240/28	250/22 10°	230/30 11°	230/40 7°	230/45 -4°	220/69 -15°	220/83 -29°	210/84 -40°	220/75 -52°
GSP	used from 50 nm out; 61 nm from the line	300/22	310/22 11°	300/22 7°	290/28 5°	270/36 -5°	250/42 -18°	230/54 -31°	230/59 -40°	230/65 -50°
ATL	used from 199 nm out; 64 nm from the line	300/23	320/26 14°	320/34 10°	320/41 5°	290/32 -6°	290/31 -18°	280/28 -33°	260/32 -41°	250/28 -50°
BHM	used from 299 nm out; 46 nm from the line	300/16	330/32 16°	320/37 11°	330/37 6°	310/33 -7°	310/30 -18°	320/40 -34°	330/43 -41°	330/30 -49°
JAN	used from 448 nm out; 79 nm from the line	260/6	310/14 17°	280/13 12°	290/19 6°	310/22 -5°	310/28 -17°	320/44 -32°	330/48 -41°	320/52 -51°
LCH	used from 647 nm out; 95 nm from the line	190/6	180/8 18°	170/13 12°	220/12 7°	290/10 -4°	280/15 -14°	320/30 -31°	320/32 -40°	320/39 -53°
HOU	used from 797 nm out; 46 nm from the line	160/18	160/14 17°	180/19 12°	190/11 8°	260/12 -4°	260/14 -13°	310/26 -30°	310/30 -40°	320/21 -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
GSO Greensboro, NC	departure	VFR Sky: a few clouds at 2,700 feet, a broken layer at 5,000 feet, a broken layer at 7,000 feet	from the southwest (230°) at 7 knots	10+ mi	5,000 ft	925 ft	8:23 pm EDT (00:23 UTC)
HKY Hickory, NC	70 nm out, 7 nm northwest of the line, tower	VFR	from the south-southwest (200°) at 3 knots	10+ mi	none	1,189 ft	23:53 UTC
AVL Asheville, NC	129 nm out, 10 nm northwest of the line, tower	VFR Sky: a few clouds at 3,100 feet, scattered clouds at 4,100 feet	from the north-northwest (330°) at 9 knots	10+ mi	none	2,163 ft	23:54 UTC
DZJ Blairsville, GA	209 nm out, 6 nm northwest of the line	marginal VFR Sky: overcast at 1,100 feet	from the west-northwest (300°) at 4 knots	10+ mi	1,100 ft	1,906 ft	00:35 UTC
GAD Gadsden, AL	329 nm out, 1 nm southeast of the line	VFR	from the north (010°) at 7 knots	10+ mi	none	569 ft	15:56 UTC
BHM Birmingham, AL	368 nm out, 9 nm southeast of the line, tower	VFR Sky: a few clouds at 3,200 feet	from the west (280°) at 4 knots	10+ mi	none	650 ft	23:53 UTC
GTR Columbus/W Point/Starkville, MS	458 nm out, 24 nm north of the line, tower	VFR	calm	10+ mi	none	264 ft	23:56 UTC
HKS Jackson, MS	558 nm out, 1 nm northwest of the line, tower	VFR	from the west (270°) at 3 knots	10+ mi	none	341 ft	23:53 UTC
ESF Alexandria, LA	677 nm out, 1 nm south of the line	VFR	calm	10+ mi	none	111 ft	23:53 UTC
AEX Alexandria, LA	687 nm out, 4 nm west of the line, tower	VFR	from the south-southeast (150°) at 4 knots	10+ mi	none	88 ft	23:53 UTC
BMT Beaumont, TX	807 nm out, 24 nm southeast of the line	VFR	from the south-southeast (150°) at 3 knots	10+ mi	none	31 ft	00:35 UTC
IAH Houston, TX	destination	VFR Sky: a broken layer at 25,000 feet	from the east-southeast (120°) at 11 knots	10+ mi	25,000 ft	95 ft	6:53 pm CDT (23:53 UTC)

The highest airport on this list sits at 2,163 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, 3:23 am CDT (08:23 UTC)

Wind from the south-southeast at 7 knots, visibility more than 6 miles, scattered clouds at 25,000 feet VFR

The whole forecast for IAH

From Sun 7:00 pm CDT (00:00 UTC): wind from the south-southeast at 12 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Sun 9:00 pm CDT (02:00 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

The forecast for GSO, the departure

From Sun 8:00 pm EDT (00:00 UTC): wind from the southwest at 10 knots, visibility more than 6 miles, a broken layer at 2,500 feet
From Sun 11:00 pm EDT (03:00 UTC): wind from the west at 7 knots, visibility more than 6 miles, a broken layer at 4,000 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the north-northwest at 12 knots, gusting to 22, visibility more than 6 miles, scattered clouds at 2,500 feet, a broken layer at 5,000 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 GSO 6:48 pm EDT (22:48 UTC), at IAH 6:55 pm CDT (23:55 UTC) (civil twilight ends 7:19 pm CDT (00:19 UTC)). At 120 knots the arrival at IAH is before sunrise there (7:21 am CDT (12:21 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 Southeast · loop National Weather Service

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

Radar now, the southern Plains · 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: Piedmont Triad International, George Bush Intcntl/Houston Airport.