William P Hobby Airport to Stillwater Regional HOU → SWO
402 nautical miles (462 statute miles) north on a straight line, true course 347°, about 344° magnetic at the departure end (variation 3E). At 120 knots that is 2 h 49 min at the quickest height in today's winds (4,500 ft, a 23-knot tailwind), arriving about 8:49 am CDT (13:49 UTC). Right now HOU is VFR, wind from the southeast (130°) at 6 knots; SWO is VFR, wind from the south (180°) 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: 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 2W: 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 last 78 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
- SF30 at 21,000 ft, 1 nm southeast, 4:35 am CDT (09:35 UTC): light rime icing, -10 °C, remarks: zhu. 20 nm along the route, 1 nm southeast 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 4 forecast points nearest it (HOU, CLL, DAL, OKC). 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 | 200° at 27 kt | −23 kt | 143 kt | 2 h 49 min | 8:49 am CDT (13:49 UTC) | |
| 6,500 ft | 200° at 22 kt | −18 kt | 17 °C | 138 kt | 2 h 55 min | 8:55 am CDT (13:55 UTC) |
| 8,500 ft | 210° at 14 kt | −9 kt | 15 °C | 129 kt | 3 h 07 min | 9:07 am CDT (14:07 UTC) |
| 10,500 ft | 230° at 10 kt | −4 kt | 11 °C | 124 kt | 3 h 15 min | 9:15 am CDT (14:15 UTC) |
| 12,500 ft | 250° at 10 kt | −1 kt | 7 °C | 121 kt | 3 h 19 min | 9:19 am CDT (14:19 UTC) |
| 14,500 ft | 240° at 13 kt | −3 kt | 2 °C | 123 kt | 3 h 16 min | 9:16 am CDT (14:16 UTC) |
| 16,500 ft | 240° at 17 kt | −5 kt | -2 °C | 125 kt | 3 h 13 min | 9:13 am CDT (14:13 UTC) |
| 18,000 ft FL180 | 240° at 19 kt | −7 kt | -6 °C | 127 kt | 3 h 10 min | 9:10 am CDT (14:10 UTC) |
| 24,000 ft FL240 | 260° at 22 kt | +1 kt | -14 °C | 119 kt | 3 h 23 min | 9:23 am CDT (14:23 UTC) |
| 30,000 ft FL300 | 270° at 36 kt | +9 kt | -29 °C | 111 kt | 3 h 37 min | 9:37 am CDT (14:37 UTC) |
| 34,000 ft FL340 | 290° at 32 kt | +19 kt | -39 °C | 101 kt | 3 h 59 min | 9:59 am CDT (14:59 UTC) |
| 39,000 ft FL390 | 310° at 37 kt | +31 kt | -51 °C | 89 kt | 4 h 31 min | 10:31 am CDT (15:31 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| HOU | used from 0 nm out; 24 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° |
| CLL | used from 49 nm out; 43 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° |
| DAL | used from 147 nm out; 49 nm from the line | 190/30 | 200/28 18° | 220/18 13° | 250/13 8° | 240/24 -6° | 270/20 -14° | 270/35 -29° | 290/34 -39° | 310/41 -51° |
| OKC | used from 294 nm out; 57 nm from the line | 220/43 | 230/31 17° | 260/13 16° | 270/11 7° | 240/20 -6° | 250/32 -17° | 260/60 -28° | 280/50 -37° | 290/45 -50° |
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 3,300 feet, overcast at 23,000 feet | from the southeast (130°) at 6 knots | 10+ mi | 23,000 ft | 46 ft | 5:53 am CDT (10:53 UTC) |
| IAH Houston, TX | 20 nm out, 2 nm northeast of the line, tower | 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 | 10:53 UTC |
| UTS Huntsville, TX | 69 nm out, 1 nm southwest of the line | VFR | from the east (090°) at 3 knots | 10+ mi | none | 362 ft | 10:53 UTC |
| DKR Crockett, TX | 98 nm out, 15 nm east of the line | no report just now | 348 ft | ||||
| PSN Palestine, TX | 127 nm out, 7 nm northeast of the line | marginal VFR Sky: overcast at 2,100 feet | from the southeast (130°) at 3 knots | 9 mi | 2,100 ft | 422 ft | 10:55 UTC |
| HQZ Mesquite, TX | 196 nm out, 21 nm west of the line, tower | VFR | from the south-southeast (150°) at 5 knots | 10+ mi | none | 446 ft | 10:55 UTC |
| GVT Greenville, TX | 206 nm out, 7 nm northeast of the line, tower | VFR | from the south-southeast (160°) at 6 knots | 10+ mi | none | 534 ft | 10:35 UTC |
| GYI Sherman/Denison, TX | 255 nm out, 15 nm west of the line, tower | VFR | from the south (190°) at 8 knots | 10+ mi | none | 749 ft | 10:35 UTC |
| ADM Ardmore, OK | 294 nm out, 23 nm west of the line, tower | reported, no category | calm | none | 776 ft | 10:35 UTC | |
| SNL Shawnee, OK | 353 nm out, 5 nm west of the line | VFR | from the south (180°) at 10 knots | 10+ mi | none | 1,073 ft | 10:35 UTC |
| CQB Chandler, OK | 372 nm out, 6 nm east of the line | VFR | from the south (170°) at 8 knots | 10+ mi | none | 985 ft | 10:30 UTC |
| SWO Stillwater, OK | destination | VFR | from the south (180°) at 7 knots | 10+ mi | none | 1,000 ft | 5:53 am CDT (10:53 UTC) |
The highest airport on this list sits at 1,073 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SWO when you get there the forecast at the estimated arrival, 8:49 am CDT (13:49 UTC)
Wind from the south at 13 knots, gusting to 23, visibility more than 6 miles, low-level wind shear, clear skies VFR
The whole forecast for SWO
- From Mon 1:00 am CDT (06:00 UTC): wind from the south at 13 knots, gusting to 23, visibility more than 6 miles, low-level wind shear, clear skies
- From Mon 9:00 am CDT (14:00 UTC): wind from the south-southwest at 16 knots, gusting to 26, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 8:00 pm CDT (01:00 UTC): wind from the south-southeast at 12 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
The forecast for HOU, the departure
- 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
- From Mon 7:00 pm CDT (00:00 UTC): wind from the southeast at 8 knots, visibility more than 6 miles, overcast at 5,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/8926 Tyler, TX, Tuesday, October 13, 2026 Local 25 nm from the route, 157 nm along the route · a VIP movement · starts tomorrow · ZFW
Daylight
Sunset at HOU 6:54 pm CDT (23:54 UTC), at SWO 6:56 pm CDT (23:56 UTC) (civil twilight ends 7:22 pm CDT (00:22 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, Stillwater Regional.