William P Hobby Airport to Seattle-Tacoma International HOU → SEA
1,645 nautical miles (1,893 statute miles) northwest on a straight line, true course 318°, about 315° magnetic at the departure end (variation 3E). At 120 knots that is 12 h 51 min at the quickest height in today's winds (4,500 ft, a 8-knot tailwind), arriving about 8:20 am PDT (15:20 UTC). Right now HOU is VFR, wind from the southeast (140°) at 6 knots; SEA is VFR, wind from the north (360°) at 7 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: 241 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
- SIGMET 6W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 10:55 pm CDT (03:55 UTC). Over the route from 608 to 767 nm out.
as issued
WSUS33 KKCI 120155 MKCW WST 120155 CONVECTIVE SIGMET 6W VALID UNTIL 0355Z CO NM FROM 50SSW DEN-30NNE TBE-50SSW CME-50E SJN-20NE DVC-50SSW DEN AREA TS MOV FROM 23040KT. TOPS TO FL340.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 588 to 1096 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 638 to 1346 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 708 to 817 nm out.
- AIRMET TANGO 1W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 718 to 1027 nm out.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 897 to 1316 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 907 to 1475 nm out.
- AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 907 to 967 nm out.
- AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 967 to 967 nm out.
- AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 1076 to 1286 nm out.
- AIRMET ZULU 2C: moderate icing up to 16,000 ft. Over the route from 1385 to 1545 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 140 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 HOU.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- urgent B407 at 10,000 ft, 46 nm northeast, 9:13 pm CDT (02:13 UTC): moderate to severe turbulence. 728 nm along the route, 46 nm northeast of the line.
as filed, and in English
COS UUA /OV 10 W COS/TM 0213/FL100/TP B407/TB MDT-SEV
- Report
- an urgent report filed through COS
- Where
- 10 west cos
- Time
- 02:13 UTC
- Height
- at 10,000 ft
- Aircraft
- B407
- Turbulence
- mdt-sev
- B738 at 18,000 ft, 42 nm northeast, 9:02 pm CDT (02:02 UTC): moderate chop turbulence from 18,000 ft to 25,000 ft, remarks: during the climb ZDVWC-41. 748 nm along the route, 42 nm northeast of the line.
as filed, and in English
COS UA /OV BRK270030/TM 0202/FL180/TP B738/TB MOD CHOP 180-250/RM DURC ZDVWC-41
- Report
- a routine report filed through COS
- Where
- 30 nm west (270°) of BRK
- Time
- 02:02 UTC
- Height
- at 18,000 ft
- Aircraft
- B738
- Turbulence
- moderate chop from 18,000 ft to 25,000 ft
- Remarks
- during the climb ZDVWC-41
- UAL2238 at 38,000 ft, 46 nm southwest, 6:44 pm CDT (23:44 UTC): moderate turbulence, wind 244° at 64 knots. 767 nm along the route, 46 nm southwest of the line.
as filed, and in English
ARP UAL2238 3807N 10649W 2344 F380 244/064KT TB CONT MOD TURB IC
- Report
- a routine report filed through ARP
- C650 at 40,000 ft, 11 nm northeast, 6:48 pm CDT (23:48 UTC): moderate turbulence, remarks: ZDVWC-03. 817 nm along the route, 11 nm northeast of the line.
as filed, and in English
ASE UA /OV DBL/TM 2348/FL400/TP C650/TB MOD /RM ZDVWC-03
- Report
- a routine report filed through ASE
- Where
- over DBL
- Time
- 23:48 UTC
- Height
- at 40,000 ft
- Aircraft
- C650
- Turbulence
- moderate
- Remarks
- ZDVWC-03
- E75L at 28,000 ft, 30 nm northeast, 8:31 pm CDT (01:31 UTC): moderate turbulence, remarks: ZDVWC-03. 857 nm along the route, 30 nm northeast of the line.
as filed, and in English
EEO UA /OV EKR085036/TM 0131/FL280/TP E75L/TB MOD/RM ZDVWC-03
- Report
- a routine report filed through EEO
- Where
- 36 nm east (085°) of EKR
- Time
- 01:31 UTC
- Height
- at 28,000 ft
- Aircraft
- E75L
- Turbulence
- moderate
- Remarks
- ZDVWC-03
- A339 at 16,000 ft, 50 nm southwest, 6:35 pm CDT (23:35 UTC): moderate chop turbulence up to 16,000 ft, remarks: during the climb zlc. 1066 nm along the route, 50 nm southwest of the line.
as filed, and in English
OGD UA /OV OGD063012/TM 2335/FL160/TP A339/TB MOD CHOP 160 BLO/RM DURC /ZLC
- Report
- a routine report filed through OGD
- Where
- 12 nm northeast (063°) of OGD
- Time
- 23:35 UTC
- Height
- at 16,000 ft
- Aircraft
- A339
- Turbulence
- moderate chop at 16,000 ft below
- Remarks
- during the climb zlc
- B39M at 27,000 ft, 10 nm east, 7:42 pm CDT (00:42 UTC): light chop turbulence, remarks: zhu. At the departure end, 10 nm east 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
- A320 at 35,000 ft, 10 nm southwest, 7:43 pm CDT (00:43 UTC): light chop turbulence, remarks: ZFW47. 409 nm along the route, 10 nm southwest of the line.
as filed, and in English
CDS UA /OV CDS270030/TM 0043/FL350/TP A320/TB LGT CHOP/RM ZFW47
- Report
- a routine report filed through CDS
- Where
- 30 nm west (270°) of CDS
- Time
- 00:43 UTC
- Height
- at 35,000 ft
- Aircraft
- A320
- Turbulence
- light chop
- Remarks
- ZFW47
- A21N at 31,000 ft, 37 nm northeast, 7:24 pm CDT (00:24 UTC): remarks: mountain wave +/-10-20KT ZDVWC-29. 688 nm along the route, 37 nm northeast of the line.
as filed, and in English
PUB UA /OV PUB/TM 0024/FL310/TP A21N/RM MTN WAVE +/-10-20KT ZDVWC-29
- Report
- a routine report filed through PUB
- Where
- over PUB
- Time
- 00:24 UTC
- Height
- at 31,000 ft
- Aircraft
- A21N
- Remarks
- mountain wave +/-10-20KT ZDVWC-29
- E145 at 7,400 ft, 49 nm southwest, 7:15 pm CDT (00:15 UTC): remarks: reported below minimums visibility 1/2SM ZDVWC-41. 698 nm along the route, 49 nm southwest of the line.
as filed, and in English
ALS UA /OV ALS/TM 0015/FL074/TP E145/SK VASE UNKN/RM REPORTED BLO MINIMUMS VIS 1/2SM ZDVWC-41
- Report
- a routine report filed through ALS
- Where
- over ALS
- Time
- 00:15 UTC
- Height
- at 7,400 ft
- Aircraft
- E145
- Sky
- vase unknown
- Remarks
- reported below minimums visibility 1/2SM ZDVWC-41
- CL35 at 43,000 ft, 6 nm north, 7:21 pm CDT (00:21 UTC): remarks: mtw +/-300FT zdvwc. 708 nm along the route, 6 nm north of the line.
as filed, and in English
PUB UA /OV PUB250040/TM 0021/FL430/TP CL35/RM MTW +/-300FT ZDVWC
- Report
- a routine report filed through PUB
- Where
- 40 nm west (250°) of PUB
- Time
- 00:21 UTC
- Height
- at 43,000 ft
- Aircraft
- CL35
- Remarks
- mtw +/-300FT zdvwc
- E145 at 7,400 ft, 47 nm southwest, 7:15 pm CDT (00:15 UTC): remarks: base reported below minimums 1/2 miles visibility ZDVWC-41. 708 nm along the route, 47 nm southwest of the line.
as filed, and in English
ALS UA /OV KALS/TM 0015/FL074/TP E145/RM BASE REPORTED BELOW MINIMUMS 1/2 SM VIS ZDVWC-41
- Report
- a routine report filed through ALS
- Where
- over KALS
- Time
- 00:15 UTC
- Height
- at 7,400 ft
- Aircraft
- E145
- Remarks
- base reported below minimums 1/2 miles visibility ZDVWC-41
- BE9L at 20,000 ft, 31 nm southwest, 7:34 pm CDT (00:34 UTC): light rime icing, -9 °C, remarks: ZDVWC-41. 728 nm along the route, 31 nm southwest of the line.
as filed, and in English
ALS UA /OV ALS330035/TM 0034/FL200/TP BE9L/TA M09/IC LGT RIME/RM ZDVWC-41
- Report
- a routine report filed through ALS
- Where
- 35 nm northwest (330°) of ALS
- Time
- 00:34 UTC
- Height
- at 20,000 ft
- Aircraft
- BE9L
- Temperature
- −9 °C
- Icing
- light rime
- Remarks
- ZDVWC-41
- B737 at 25,000 ft, 46 nm northeast, 7:29 pm CDT (00:29 UTC): light rime icing, 0 °C, remarks: during the climb ZDVWC-29. 728 nm along the route, 46 nm northeast of the line.
as filed, and in English
COS UA /OV BRK242015/TM 0029/FL250/TP B737/SK TOP280/TA 00/IC LGT RIME/RM DURC ZDVWC-29
- Report
- a routine report filed through COS
- Where
- 15 nm southwest (242°) of BRK
- Time
- 00:29 UTC
- Height
- at 25,000 ft
- Aircraft
- B737
- Sky
- TOP280
- Temperature
- 0 °C
- Icing
- light rime
- Remarks
- during the climb ZDVWC-29
14 more routine reports are on the map.
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 18 forecast points nearest it (HOU, CLL, DAL, ABI, SPS, LBB, AMA, TCC, PUB, ALS, GJT, RKS, SLC, PIH, BOI, LWS, YKM, SEA). 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 | 190° at 14 kt | −8 kt | 11 °C | 128 kt | 12 h 51 min | 8:20 am PDT (15:20 UTC) |
| 6,500 ft | 200° at 12 kt | −6 kt | 8 °C | 126 kt | 13 h 03 min | 8:32 am PDT (15:32 UTC) |
| 8,500 ft | 220° at 16 kt | −2 kt | 6 °C | 122 kt | 13 h 29 min | 8:58 am PDT (15:58 UTC) |
| 10,500 ft | 230° at 17 kt | +1 kt | 4 °C | 119 kt | 13 h 49 min | 9:18 am PDT (16:18 UTC) |
| 12,500 ft | 230° at 18 kt | +2 kt | 0 °C | 118 kt | 13 h 56 min | 9:25 am PDT (16:25 UTC) |
| 14,500 ft | 230° at 21 kt | +1 kt | -4 °C | 119 kt | 13 h 49 min | 9:18 am PDT (16:18 UTC) |
| 16,500 ft | 220° at 23 kt | 0 | -8 °C | 120 kt | 13 h 42 min | 9:11 am PDT (16:11 UTC) |
| 18,000 ft FL180 | 220° at 25 kt | −2 kt | -11 °C | 122 kt | 13 h 29 min | 8:58 am PDT (15:58 UTC) |
| 24,000 ft FL240 | 220° at 31 kt | 0 | -22 °C | 120 kt | 13 h 42 min | 9:11 am PDT (16:11 UTC) |
| 30,000 ft FL300 | 240° at 41 kt | +11 kt | -30 °C | 109 kt | 15 h 06 min | 10:35 am PDT (17:35 UTC) |
| 34,000 ft FL340 | 240° at 41 kt | +15 kt | -36 °C | 105 kt | 15 h 40 min | 11:09 am PDT (18:09 UTC) |
| 39,000 ft FL390 | 250° at 38 kt | +16 kt | -45 °C | 104 kt | 15 h 49 min | 11:18 am PDT (18:18 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; 25 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° |
| CLL | used from 50 nm out; 6 nm from the line | 170/22 | 170/26 18° | 200/15 14° | 240/13 8° | 240/15 -5° | 260/17 -13° | 290/27 -29° | 290/22 -40° | 320/30 -51° |
| DAL | used from 150 nm out; 73 nm from the line | 190/29 | 220/23 17° | 220/17 13° | 250/18 8° | 230/18 -5° | 240/18 -15° | 270/34 -29° | 280/33 -39° | 300/36 -51° |
| ABI | used from 199 nm out; 73 nm from the line | 200/31 17° | 210/21 15° | 240/15 9° | 250/14 -4° | 250/24 -14° | 250/36 -28° | 270/35 -38° | 290/41 -50° | |
| SPS | used from 299 nm out; 60 nm from the line | 200/39 | 220/28 17° | 230/27 12° | 240/15 9° | 250/15 -4° | 250/24 -15° | 260/45 -28° | 270/43 -39° | 280/45 -51° |
| LBB | used from 349 nm out; 82 nm from the line | 200/36 18° | 220/19 15° | 240/20 8° | 230/24 -4° | 240/37 -16° | 250/57 -28° | 250/51 -38° | 270/47 -50° | |
| AMA | used from 399 nm out; 43 nm from the line | 210/38 | 230/29 14° | 240/29 7° | 220/27 -5° | 240/37 -18° | 240/66 -28° | 250/59 -37° | 260/47 -49° | |
| TCC | used from 548 nm out; 82 nm from the line | 210/42 | 230/33 14° | 230/32 6° | 220/35 -6° | 230/49 -19° | 240/72 -27° | 250/62 -36° | 250/52 -48° | |
| PUB | used from 598 nm out; 77 nm from the line | 230/25 13° | 230/32 6° | 220/44 -8° | 230/49 -21° | 240/70 -28° | 240/67 -34° | 240/58 -46° | ||
| ALS | used from 748 nm out; 82 nm from the line | 230/37 4° | 220/54 -9° | 230/62 -22° | 240/77 -26° | 240/74 -33° | 230/59 -45° | |||
| GJT | used from 797 nm out; 68 nm from the line | 210/43 7° | 230/45 1° | 220/49 -12° | 220/62 -22° | 220/59 -28° | 230/60 -33° | 220/55 -45° | ||
| RKS | used from 897 nm out; 73 nm from the line | 200/41 | 220/44 1° | 220/35 -11° | 220/46 -24° | 210/53 -27° | 220/62 -35° | 230/61 -44° | ||
| SLC | used from 1047 nm out; 79 nm from the line | 200/5 | 230/8 2° | 220/20 -2° | 210/40 -12° | 190/53 -25° | 210/62 -30° | 220/69 -34° | 220/64 -43° | |
| PIH | used from 1096 nm out; 31 nm from the line | L/V | 240/13 1° | 240/15 -3° | 210/42 -15° | 200/70 -25° | 220/74 -29° | 220/71 -36° | 220/62 -43° | |
| BOI | used from 1246 nm out; 64 nm from the line | 300/7 2° | 280/5 -4° | 210/16 -9° | 210/60 -20° | 210/75 -29° | 210/63 -32° | 220/64 -32° | 220/54 -39° | |
| LWS | used from 1346 nm out; 85 nm from the line | 070/10 | 080/12 -2° | 030/12 -6° | 080/7 -10° | 170/34 -21° | 160/46 -32° | 200/33 -35° | 220/22 -35° | 230/18 -38° |
| YKM | used from 1495 nm out; 36 nm from the line | 070/10 | 040/15 -1° | 020/27 -8° | 030/25 -13° | 020/48 -20° | 010/83 -27° | 010/77 -37° | 010/49 -40° | 350/14 -41° |
| SEA | used from 1595 nm out; 25 nm from the line | 050/7 | 050/11 1° | 050/12 -5° | 030/31 -7° | 010/61 -15° | 010/69 -26° | 360/73 -40° | 360/62 -47° | 330/21 -43° |
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 |
|---|---|---|---|---|---|---|---|
| HOU Houston, TX | departure | VFR Sky: a few clouds at 25,000 feet | from the southeast (140°) at 6 knots | 10+ mi | none | 46 ft | 8:53 pm CDT (01:53 UTC) |
| CLL College Station, TX | 80 nm out, 4 nm southwest of the line, tower | VFR | from the south-southeast (150°) at 11 knots | 10+ mi | none | 320 ft | 01:53 UTC |
| SEP Stephenville, TX | 219 nm out, 7 nm south of the line | VFR | from the south (170°) at 4 knots | 10+ mi | none | 1,321 ft | 02:15 UTC |
| AMA Amarillo, TX | 468 nm out, 5 nm southwest of the line, tower | VFR | from the south (170°) at 19 knots, gusting to 27 | 10+ mi | none | 3,606 ft | 01:53 UTC |
| CAO Clayton, NM | 568 nm out, 1 nm southwest of the line | VFR | from the south (190°) at 20 knots | 10+ mi | none | 4,969 ft | 01:55 UTC |
| ASE Aspen, CO | 807 nm out, 4 nm north of the line, tower | VFR Sky: scattered clouds at 6,000 feet, overcast at 7,500 feet Weather: light rain | calm | 10+ mi | 7,500 ft | 7,837 ft | 01:53 UTC |
| EGE Eagle, CO | 827 nm out, 19 nm northeast of the line, tower | VFR Sky: a broken layer at 8,000 feet, overcast at 9,500 feet | from the west (260°) at 7 knots | 10+ mi | 8,000 ft | 6,547 ft | 01:56 UTC |
| FBR Fort Bridger, WY | 1017 nm out, 4 nm west of the line | VFR Sky: overcast at 5,500 feet | from the west (260°) at 17 knots, gusting to 25 | 10+ mi | 5,500 ft | 7,038 ft | 02:15 UTC |
| PIH Pocatello, ID | 1156 nm out, 8 nm east of the line, tower | VFR Sky: scattered clouds at 1,200 feet, a broken layer at 7,500 feet, overcast at 8,500 feet Weather: light rain | from the west-southwest (250°) at 12 knots | 10+ mi | 7,500 ft | 4,451 ft | 01:53 UTC |
| PDT Pendleton, OR | 1465 nm out, 13 nm southwest of the line, tower | VFR Sky: overcast at 7,000 feet | calm | 10+ mi | 7,000 ft | 1,494 ft | 01:53 UTC |
| YKM Yakima, WA | 1555 nm out, 7 nm southwest of the line, tower | VFR Sky: overcast at 9,500 feet | from the west-northwest (290°) at 6 knots | 10+ mi | 9,500 ft | 1,098 ft | 01:53 UTC |
| SEA Seattle, WA | destination | VFR Sky: a few clouds at 3,000 feet | from the north (360°) at 7 knots | 10+ mi | none | 432 ft | 6:53 pm PDT (01:53 UTC) |
The highest airport on this list sits at 7,837 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SEA when you get there the forecast at the estimated arrival, 8:20 am PDT (15:20 UTC)
Wind from the southeast at 4 knots, visibility more than 6 miles, patches of fog, clear skies VFR
The whole forecast for SEA
- From Sun 5:00 pm PDT (00:00 UTC): wind from the north at 12 knots, gusting to 20, visibility more than 6 miles, a few clouds at 2,000 feet, a few clouds at 5,000 feet
- From Sun 8:00 pm PDT (03:00 UTC): wind from the northeast at 6 knots, visibility more than 6 miles, clear skies
- From Mon 3:00 am PDT (10:00 UTC): wind from the southeast at 4 knots, visibility more than 6 miles, patches of fog, clear skies
- From Mon 9:00 am PDT (16:00 UTC): wind from the south-southeast at 4 knots, visibility more than 6 miles, clear skies
- From Mon 11:00 am PDT (18:00 UTC): wind from the west at 6 knots, visibility more than 6 miles, clear skies
- From Mon 8:00 pm PDT (03:00 UTC): wind from the northwest at 5 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
The forecast for HOU, the departure
- From Sun 7:00 pm CDT (00:00 UTC): wind from the southeast at 12 knots, visibility more than 6 miles, a few clouds at 25,000 feet
- From Sun 8:00 pm CDT (01:00 UTC): wind from the 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 5 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 11 knots, visibility more than 6 miles, scattered clouds at 3,500 feet, a broken layer at 25,000 feet
- 30% chance between Mon 11:00 am CDT (16:00 UTC) and 1:00 pm CDT (18:00 UTC): light rain showers
- From Mon 5:00 pm CDT (22:00 UTC): wind from the southeast at 13 knots, visibility more than 6 miles, overcast at 5,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/0543 MCGREGOR, TX 11 nm from the route, 150 nm along the route · security · ZFW
Daylight
Sunset at HOU 6:54 pm CDT (23:54 UTC), at SEA 6:27 pm PDT (01:27 UTC) (civil twilight ends 6:58 pm PDT (01:58 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: William P Hobby Airport, Seattle-Tacoma International.