Plan a flight · Sun 10:36 pm EDT (02:36 UTC)

Gainesville Regional to George Bush Intcntl/Houston Airport GNV → IAH

681 nautical miles (783 statute miles) west on a straight line, true course 275°, about 279° magnetic at the departure end (variation 4W). At 120 knots that is 5 h 43 min at the quickest height in today's winds (4,500 ft, a 1-knot headwind), arriving about 3:19 am CDT (08:19 UTC), after sunset at the destination. Right now GNV is VFR, wind from the west (270°) at 6 knots; IAH is VFR, wind from the southeast (140°) at 8 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: 3 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 6W: moderate turbulence above 18,000 ft from 28,000 ft to 40,000 ft. Over the route from 89 to 247 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 GNV.

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

B789 at 27,000 ft, 20 nm south, 8:30 pm EDT (00:30 UTC): moderate clear-air turbulence, remarks: zhu. 552 nm along the route, 20 nm south of the line.
as filed, and in English
```
LFT UA /OV LLA270030/TM 0030/FL270/TP B789/TB MOD CAT/RM ZHU
```
Report
a routine report filed through LFT
Where
30 nm west (270°) of LLA
Time
00:30 UTC
Height
at 27,000 ft
Aircraft
B789
Turbulence
moderate clear-air turbulence
Remarks
zhu
PC12 at 16,000 ft, 45 nm north, 8:55 pm EDT (00:55 UTC): no turbulence, clear from 16,000 ft to 60,000 ft. At the departure end, 45 nm north of the line.
as filed, and in English
```
AYS UA /OV AYS150060/TM 0055/FL160/TP PC12/SK SKC/TB NEG
```
Report
a routine report filed through AYS
Where
60 nm southeast (150°) of AYS
Time
00:55 UTC
Height
at 16,000 ft
Aircraft
PC12
Sky
clear
Turbulence
none
B738 at 36,000 ft, 31 nm south, 8:23 pm EDT (00:23 UTC): light chop turbulence. At the departure end, 31 nm south of the line.
as filed, and in English
```
OCF UA /OV OCF/TM 0023/FL360/TP B738/TB LGT CHOP
```
Report
a routine report filed through OCF
Where
over OCF
Time
00:23 UTC
Height
at 36,000 ft
Aircraft
B738
Turbulence
light chop
E170 at 32,000 ft, 12 nm north, 8:07 pm EDT (00:07 UTC): light turbulence. 59 nm along the route, 12 nm north of the line.
as filed, and in English
```
CTY UA /OV CTY320030/TM 0007/FL320/TP E170/TB CONS LGT
```
Report
a routine report filed through CTY
Where
30 nm northwest (320°) of CTY
Time
00:07 UTC
Height
at 32,000 ft
Aircraft
E170
Turbulence
continuous light
B39M at 35,000 ft, 27 nm north, 7:51 pm EDT (23:51 UTC): no turbulence. 89 nm along the route, 27 nm north of the line.
as filed, and in English
```
TLH UA /OV TLH120020/TM 2351/FL350/TP B39M/TB NEG
```
Report
a routine report filed through TLH
Where
20 nm southeast (120°) of TLH
Time
23:51 UTC
Height
at 35,000 ft
Aircraft
B39M
Turbulence
none
A321 at 34,000 ft, 34 nm north, 8:01 pm EDT (00:01 UTC): light chop turbulence. 108 nm along the route, 34 nm north of the line.
as filed, and in English
```
TLH UA /OV TLH/TM 0001/FL340/TP A321/TB OCNL LGT CHOP
```
Report
a routine report filed through TLH
Where
over TLH
Time
00:01 UTC
Height
at 34,000 ft
Aircraft
A321
Turbulence
occasional light chop
E75L at 27,000 ft, 7 nm north, 8:20 pm EDT (00:20 UTC): remarks: zhu. 562 nm along the route, 7 nm north 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
B39M at 27,000 ft, 2 nm south, 8:42 pm EDT (00:42 UTC): light chop turbulence, remarks: zhu. At the destination end, 2 nm south of the line.
as filed, and in English
```
IAH UA /OV IH340035/TM 0042/FL270/TP B39M/TB LT CHOP DURC/RM ZHU
```
Report
a routine report filed through IAH
Where
IH340035
Time
00:42 UTC
Height
at 27,000 ft
Aircraft
B39M
Turbulence
lt chop during the climb
Remarks
zhu

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 6 forecast points nearest it (JAX, TLH, MOB, MSY, 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	light and variable	+1 kt		119 kt	5 h 43 min	3:19 am CDT (08:19 UTC)
6,500 ft	340° at 2 kt	+1 kt	17 °C	119 kt	5 h 43 min	3:19 am CDT (08:19 UTC)
8,500 ft	310° at 4 kt	+4 kt	13 °C	116 kt	5 h 52 min	3:28 am CDT (08:28 UTC)
10,500 ft	300° at 7 kt	+6 kt	10 °C	114 kt	5 h 58 min	3:34 am CDT (08:34 UTC)
12,500 ft	300° at 9 kt	+9 kt	7 °C	111 kt	6 h 08 min	3:44 am CDT (08:44 UTC)
14,500 ft	290° at 11 kt	+11 kt	2 °C	109 kt	6 h 15 min	3:51 am CDT (08:51 UTC)
16,500 ft	290° at 13 kt	+13 kt	-2 °C	107 kt	6 h 22 min	3:58 am CDT (08:58 UTC)
18,000 ft FL180	290° at 15 kt	+14 kt	-5 °C	106 kt	6 h 25 min	4:01 am CDT (09:01 UTC)
24,000 ft FL240	290° at 20 kt	+20 kt	-16 °C	100 kt	6 h 49 min	4:25 am CDT (09:25 UTC)
30,000 ft FL300	320° at 29 kt	+20 kt	-31 °C	100 kt	6 h 49 min	4:25 am CDT (09:25 UTC)
34,000 ft FL340	320° at 31 kt	+19 kt	-41 °C	101 kt	6 h 45 min	4:21 am CDT (09:21 UTC)
39,000 ft FL390	330° at 32 kt	+14 kt	-52 °C	106 kt	6 h 25 min	4:01 am CDT (09:01 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
JAX	used from 0 nm out; 72 nm from the line	290/14	300/16 17°	280/22 14°	280/24 8°	250/32 -6°	250/37 -17°	230/50 -31°	220/52 -41°	220/51 -52°
TLH	used from 49 nm out; 50 nm from the line	320/18	350/31 18°	340/24 13°	310/17 8°	280/22 -7°	300/25 -17°	320/28 -33°	320/24 -41°	320/25 -50°
MOB	used from 197 nm out; 100 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 345 nm out; 46 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 493 nm out; 53 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°
HOU	used from 641 nm out; 27 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°

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
GNV Gainesville, FL	departure	VFR	from the west (270°) at 6 knots	10+ mi	none	151 ft	9:53 pm EDT (01:53 UTC)
CTY Cross City, FL	39 nm out, 8 nm southwest of the line	VFR	from the southwest (230°) at 2 knots	10+ mi	none	42 ft	02:15 UTC
FPY Perry, FL	69 nm out, 18 nm north of the line	VFR	calm	10+ mi	none	44 ft	02:15 UTC
AAF Apalachicola, FL	148 nm out, 9 nm southeast of the line	VFR	calm	10+ mi	none	19 ft	01:53 UTC
JKA Gulf Shores, AL	286 nm out, 20 nm north of the line, tower	VFR	calm	10+ mi	none	17 ft	02:15 UTC
NEW New Orleans, LA	404 nm out, 1 nm north of the line, tower	VFR	from the south (190°) at 5 knots	10+ mi	none	7 ft	01:53 UTC
MSY New Orleans, LA	414 nm out, 3 nm southwest of the line, tower	VFR Sky: a broken layer at 25,000 feet	from the south (180°) at 5 knots	10+ mi	25,000 ft	3 ft	01:53 UTC
ARA New Iberia, LA	503 nm out, 2 nm east of the line, tower	VFR	calm	10+ mi	none	24 ft	01:53 UTC
BPT Beaumont/Port Arthur, TX	612 nm out, 4 nm south of the line, tower	VFR	from the southeast (130°) at 4 knots	10+ mi	none	14 ft	01:53 UTC
BMT Beaumont, TX	621 nm out, 4 nm north of the line	VFR	from the east-southeast (120°) at 3 knots	10+ mi	none	31 ft	02:15 UTC
IAH Houston, TX	destination	VFR Sky: scattered clouds at 25,000 feet	from the southeast (140°) at 8 knots	10+ mi	none	95 ft	8:53 pm CDT (01:53 UTC)

The highest airport on this list sits at 151 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, 3:19 am CDT (08:19 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 GNV, the departure

From Sun 8:00 pm EDT (00:00 UTC): wind from the west at 4 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the northwest at 10 knots, gusting to 15, visibility more than 6 miles, clear skies
From Mon 6:00 pm EDT (22:00 UTC): wind from the north-northwest at 5 knots, visibility more than 6 miles, clear skies

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 GNV 7:02 pm EDT (23:02 UTC), at IAH 6:54 pm CDT (23:54 UTC) (civil twilight ends 7:18 pm CDT (00:18 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: Gainesville Regional, George Bush Intcntl/Houston Airport.