Plan a flight · Mon 9:09 am CDT (14:09 UTC)

East Texas Regional to Valley International GGG → HRL

400 nautical miles (461 statute miles) southwest on a straight line, true course 203°, about 200° magnetic at the departure end (variation 3E). At 120 knots that is 2 h 46 min at the quickest height in today's winds (39,000 ft, a 25-knot tailwind), arriving about 11:55 am CDT (16:55 UTC). Right now GGG is VFR, wind from the southeast (130°) at 7 knots; HRL is VFR, wind from the east-southeast (120°) 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: 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

No SIGMET or AIRMET covers any part of this route right now.

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 GGG.

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

220 , 27 nm east, 8:20 am CDT (13:20 UTC): moderate chop turbulence, remarks: zhu. 225 nm along the route, 27 nm east of the line.
as filed, and in English
```
PSX UA /OV PSX080020/TM 1320/FL1302/TP 220/SK E145/TB OCNL MOD CHOP/RM ZHU
```
Report
a routine report filed through PSX
Where
20 nm east (080°) of PSX
Time
13:20 UTC
Height
at 130,200 ft
Aircraft
220
Sky
E145
Turbulence
occasional moderate chop
Remarks
zhu
A321 at 32,000 ft, 21 nm east, 7:53 am CDT (12:53 UTC): light chop turbulence, remarks: ZFW89. 29 nm along the route, 21 nm east of the line.
as filed, and in English
```
GGG UA /OV GGG155035/TM 1253/FL320/TP A321/TB CONS LGT CHOP/RM ZFW89
```
Report
a routine report filed through GGG
Where
35 nm southeast (155°) of GGG
Time
12:53 UTC
Height
at 32,000 ft
Aircraft
A321
Turbulence
continuous light chop
Remarks
ZFW89
F2TH at 18,000 ft, 3 nm west, 7:20 am CDT (12:20 UTC): no turbulence from 17,300 ft to 29,000 ft, remarks: zhu. 107 nm along the route, 3 nm west of the line.
as filed, and in English
```
UTS UA /OV KLOA30035-KLOA190020/TM 1220/FL180/TP F2TH/TB NEG 290-173/RM ZHU
```
Report
a routine report filed through UTS
Where
KLOA30035-KLOA190020
Time
12:20 UTC
Height
at 18,000 ft
Aircraft
F2TH
Turbulence
no from 29,000 ft to 17,300 ft
Remarks
zhu
B738 at 18,000 ft, 3 nm west, 6:59 am CDT (11:59 UTC): light turbulence, remarks: zhu. 107 nm along the route, 3 nm west of the line.
as filed, and in English
```
UTS UA /OV KLOA155020/TM 1159/FL180/TP B738/TB LGT CHOPN 180-230/RM ZHU
```
Report
a routine report filed through UTS
Where
20 nm southeast (155°) of KLOA
Time
11:59 UTC
Height
at 18,000 ft
Aircraft
B738
Turbulence
light chopn from 18,000 ft to 23,000 ft
Remarks
zhu
B36M at 18,000 ft, 13 nm east, 7:24 am CDT (12:24 UTC): light clear-air turbulence, remarks: zhu. 117 nm along the route, 13 nm east of the line.
as filed, and in English
```
IAH UA /OV KIAH355035/TM 1224/FL180/TP B36M/TB LGT CAT/RM ZHU
```
Report
a routine report filed through IAH
Where
35 nm north (355°) of KIAH
Time
12:24 UTC
Height
at 18,000 ft
Aircraft
B36M
Turbulence
light clear-air turbulence
Remarks
zhu
B738 at 21,000 ft, 39 nm northwest, 6:48 am CDT (11:48 UTC): light to moderate turbulence, remarks: flight level at 19,000 ft FL220 zhu. 137 nm along the route, 39 nm northwest of the line.
as filed, and in English
```
CLL UA /OV KTNV200020/TM 1148/FL210/TP B738/TB LGT-MOD/RM FL 190 FL220 ZHU
```
Report
a routine report filed through CLL
Where
20 nm south (200°) of KTNV
Time
11:48 UTC
Height
at 21,000 ft
Aircraft
B738
Turbulence
light to moderate
Remarks
flight level at 19,000 ft FL220 zhu
B737 at 20,000 ft, 39 nm northwest, 6:35 am CDT (11:35 UTC): light chop turbulence, remarks: zhu. 137 nm along the route, 39 nm northwest of the line.
as filed, and in English
```
CLL UA /OV KTNV/TM 1135/FL200/TP B737/TB CONS LGT CHOP/RM ZHU
```
Report
a routine report filed through CLL
Where
over KTNV
Time
11:35 UTC
Height
at 20,000 ft
Aircraft
B737
Turbulence
continuous light chop
Remarks
zhu
A320 at 2,000 ft, 27 nm southeast, 9:07 am CDT (14:07 UTC): a broken layer, remarks: bases BKN020 during the descent. 147 nm along the route, 27 nm southeast of the line.
as filed, and in English
```
IAH UA /OV DURD/TM 1407/FL020/TP A320/SK BKN/RM BASES BKN020 DURD
```
Report
a routine report filed through IAH
Where
over DURD
Time
14:07 UTC
Height
at 2,000 ft
Aircraft
A320
Sky
a broken layer
Remarks
bases BKN020 during the descent
A21N at 32,000 ft, 27 nm southeast, 7:04 am CDT (12:04 UTC): no turbulence, remarks: zhu. 147 nm along the route, 27 nm southeast of the line.
as filed, and in English
```
IAH UA /OV KDAS134010/TM 1204/FL320/TP A21N/TB NEG/RM ZHU
```
Report
a routine report filed through IAH
Where
10 nm southeast (134°) of KDAS
Time
12:04 UTC
Height
at 32,000 ft
Aircraft
A21N
Turbulence
none
Remarks
zhu
B38M at 2,000 ft, 34 nm southeast, 8:22 am CDT (13:22 UTC): a routine report with nothing remarked on. 156 nm along the route, 34 nm southeast of the line.
as filed, and in English
```
IAH UA /OV 5NW HOU/TM 1322/FL020/TP B38M/SK BASE 020
```
Report
a routine report filed through IAH
Where
5NW hou
Time
13:22 UTC
Height
at 2,000 ft
Aircraft
B38M
Sky
base 2,000 ft
C525 at 22,000 ft, 6 nm west, 7:40 am CDT (12:40 UTC): light rime icing, -12 °C, remarks: during the climb from 19,000 ft to 24,000 ft zhu. 156 nm along the route, 6 nm west of the line.
as filed, and in English
```
IAH UA /OV IAH270035/TM 1240/FL220/TP C525/TA M12/IC LGT RIME/RM DURC 190-240 ZHU
```
Report
a routine report filed through IAH
Where
35 nm west (270°) of IAH
Time
12:40 UTC
Height
at 22,000 ft
Aircraft
C525
Temperature
−12 °C
Icing
light rime
Remarks
during the climb from 19,000 ft to 24,000 ft zhu
B738 at 24,000 ft, 33 nm northwest, 6:25 am CDT (11:25 UTC): remarks: zhu. 215 nm along the route, 33 nm northwest of the line.
as filed, and in English
```
VCT UA /OV KVCT360030/TM 1125/FL240/TP B738/SK TOP 220/RM ZHU
```
Report
a routine report filed through VCT
Where
30 nm north (360°) of KVCT
Time
11:25 UTC
Height
at 24,000 ft
Aircraft
B738
Sky
top 22,000 ft
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 6 forecast points nearest it (SHV, CLL, HOU, PSX, CRP, BRO). 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	170° at 19 kt	+17 kt		103 kt	3 h 53 min	1:02 pm CDT (18:02 UTC)
6,500 ft	180° at 17 kt	+16 kt	17 °C	104 kt	3 h 51 min	1:00 pm CDT (18:00 UTC)
8,500 ft	190° at 12 kt	+12 kt	15 °C	108 kt	3 h 42 min	12:51 pm CDT (17:51 UTC)
10,500 ft	200° at 7 kt	+7 kt	11 °C	113 kt	3 h 32 min	12:41 pm CDT (17:41 UTC)
12,500 ft	220° at 5 kt	+5 kt	7 °C	115 kt	3 h 29 min	12:38 pm CDT (17:38 UTC)
14,500 ft	240° at 6 kt	+5 kt	3 °C	115 kt	3 h 29 min	12:38 pm CDT (17:38 UTC)
16,500 ft	240° at 8 kt	+6 kt	-2 °C	114 kt	3 h 31 min	12:40 pm CDT (17:40 UTC)
18,000 ft FL180	250° at 10 kt	+7 kt	-5 °C	113 kt	3 h 32 min	12:41 pm CDT (17:41 UTC)
24,000 ft FL240	240° at 11 kt	+9 kt	-13 °C	111 kt	3 h 36 min	12:45 pm CDT (17:45 UTC)
30,000 ft FL300	300° at 13 kt	−2 kt	-29 °C	122 kt	3 h 17 min	12:26 pm CDT (17:26 UTC)
34,000 ft FL340	320° at 13 kt	−7 kt	-40 °C	127 kt	3 h 09 min	12:18 pm CDT (17:18 UTC)
39,000 ft FL390	360° at 28 kt	−25 kt	-51 °C	145 kt	2 h 46 min	11:55 am CDT (16:55 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
SHV	used from 0 nm out; 61 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°
CLL	used from 49 nm out; 69 nm from the line	180/24	170/21 19°	180/10 14°	230/7 8°	230/16 -6°	260/20 -13°	290/23 -29°	320/21 -39°	340/35 -51°
HOU	used from 147 nm out; 39 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°
PSX	used from 195 nm out; 18 nm from the line	160/24	190/17 17°	200/10 15°	L/V 8°	260/7 -5°	220/10 -12°	310/11 -30°	320/13 -40°	010/29 -51°
CRP	used from 293 nm out; 28 nm from the line	140/21	160/22 17°	180/14 13°	210/6 9°	270/10 -5°	200/8 -13°	L/V -29°	L/V -40°	030/28 -51°
BRO	used from 342 nm out; 51 nm from the line	160/15	160/15 18°	170/11 14°	150/7 9°	L/V -4°	170/6 -15°	100/15 -29°	100/14 -41°	040/26 -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
GGG Longview, TX	departure	VFR	from the southeast (130°) at 7 knots	10+ mi	none	365 ft	8:53 am CDT (13:53 UTC)
RFI Henderson, TX	20 nm out, 3 nm north of the line	VFR	from the south-southeast (160°) at 7 knots	10+ mi	none	441 ft	13:55 UTC
DKR Crockett, TX	78 nm out, 8 nm northwest of the line	no report just now				348 ft
UTS Huntsville, TX	107 nm out, 3 nm west of the line	VFR	from the southeast (140°) at 6 knots	10+ mi	none	362 ft	13:53 UTC
DWH Houston, TX	147 nm out, 15 nm east of the line, tower	VFR	from the east (090°) at 3 knots	8 mi	none	152 ft	13:53 UTC
TME Houston, TX	166 nm out, 5 nm southeast of the line, tower	VFR Sky: scattered clouds at 3,100 feet	calm	10+ mi	none	165 ft	08:15 UTC
ARM Wharton, TX	205 nm out, 6 nm east of the line	VFR Sky: a broken layer at 4,900 feet	from the east (100°) at 5 knots	10+ mi	4,900 ft	100 ft	13:55 UTC
VCT Victoria, TX	244 nm out, 23 nm northwest of the line, tower	VFR Sky: a few clouds at 3,600 feet, scattered clouds at 4,900 feet	from the east-southeast (110°) at 3 knots	10+ mi	none	115 ft	13:51 UTC
RAS Port Aransas, TX	303 nm out, 8 nm northwest of the line	VFR	from the southeast (140°) at 9 knots	10+ mi	none	5 ft	13:55 UTC
HRL Harlingen, TX	destination	VFR	from the east-southeast (120°) at 5 knots	10+ mi	none	36 ft	8:52 am CDT (13:52 UTC)

The highest airport on this list sits at 441 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At HRL when you get there the forecast at the estimated arrival, 11:55 am CDT (16:55 UTC)

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

The whole forecast for HRL

From Mon 7:00 am CDT (12:00 UTC): wind from the southeast at 6 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 9:00 am CDT (14:00 UTC): wind from the south-southeast at 7 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 1:00 pm CDT (18:00 UTC): wind from the south-southeast at 12 knots, gusting to 20, visibility more than 6 miles, scattered clouds at 7,000 feet
From Mon 9:00 pm CDT (02:00 UTC): wind from the southeast at 9 knots, visibility more than 6 miles, a few clouds at 25,000 feet

The forecast for GGG, the departure

From Mon 7:00 am CDT (12:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, clear skies
From Mon 1:00 pm CDT (18:00 UTC): wind from the south at 13 knots, gusting to 21, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 7:00 pm CDT (00:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Tue 4:00 am CDT (09:00 UTC): wind from the south at 3 knots, visibility more than 6 miles, a broken layer at 2,500 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 GGG 6:49 pm CDT (23:49 UTC), at HRL 7:04 pm CDT (00:04 UTC) (civil twilight ends 7:28 pm CDT (00:28 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 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: East Texas Regional, Valley International.