George Bush Intcntl/Houston Airport to Yampa Valley Airport IAH → HDN
857 nautical miles (986 statute miles) northwest on a straight line, true course 321°, about 318° magnetic at the departure end (variation 3E). At 120 knots that is 6 h 24 min at the quickest height in today's winds (4,500 ft, a 14-knot tailwind), arriving about 6:10 am MDT (12:10 UTC), after sunset at the destination. Right now IAH is VFR, wind calm; HDN is VFR, wind from the south (180°) at 6 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: 265 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 7C: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 1:55 am CDT (06:55 UTC). Over the route from 558 to 707 nm out.
as issued
WSUS32 KKCI 120455 MKCC WST 120455 CONVECTIVE SIGMET 7C VALID UNTIL 0655Z TX OK CO NM FROM 40NNW PUB-70WSW LBL-40NE CME-40ESE RSK-30ENE HBU-40NNW PUB AREA TS MOV FROM 22040KT. TOPS TO FL340.
- AIRMET TANGO 3W: 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 478 to 598 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 269 nm of the route.
- AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the route from 627 to 637 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 last 179 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 0 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 IAH.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- urgent E75L at 9,000 ft, 44 nm southwest, 11:30 pm CDT (04:30 UTC): remarks: low-level wind shear + 20K 1000-1500 above ground on approach. 797 nm along the route, 44 nm southwest of the line.
as filed, and in English
ASE UUA /OV ASE/TM 0430/FL090/TP E75L/RM LLWS +/- 20K 1000-1500 AGL ON APCH
- Report
- an urgent report filed through ASE
- Where
- over ASE
- Time
- 04:30 UTC
- Height
- at 9,000 ft
- Aircraft
- E75L
- Remarks
- low-level wind shear + 20K 1000-1500 above ground on approach
- urgent B737 at 7,600 ft, 0 nm west, 10:22 pm CDT (03:22 UTC): remarks: low-level wind shear 45 knots crosswind on final. At the destination end, 0 nm west of the line.
as filed, and in English
HDN UUA /OV HDN/TM 0322/FL076/TP B737/RM LLWS 45 KTS CROSSWIND ON FINAL
- Report
- an urgent report filed through HDN
- Where
- over HDN
- Time
- 03:22 UTC
- Height
- at 7,600 ft
- Aircraft
- B737
- Remarks
- low-level wind shear 45 knots crosswind on final
- E170 at 22,500 ft, 5 nm south, 12:06 am CDT (05:06 UTC): light to moderate turbulence up to 23,000 ft, remarks: during the descent tbarr star ZDVWC-13. 747 nm along the route, 5 nm south of the line.
as filed, and in English
DEN UA /OV DEN216057/TM 0506/FL225/TP E170/TB CONS LGT OCNL MOD BLO 230/RM DURD TBARR STAR. ZDVWC-13
- Report
- a routine report filed through DEN
- Where
- 57 nm southwest (216°) of DEN
- Time
- 05:06 UTC
- Height
- at 22,500 ft
- Aircraft
- E170
- Turbulence
- continuous light occasional moderate below 23,000 ft
- Remarks
- during the descent tbarr star ZDVWC-13
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 7 forecast points nearest it (CLL, DAL, SPS, AMA, PUB, DEN, GJT). 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 30 kt | −14 kt | 134 kt | 6 h 24 min | 6:10 am MDT (12:10 UTC) | |
| 6,500 ft | 210° at 27 kt | −10 kt | 16 °C | 130 kt | 6 h 36 min | 6:22 am MDT (12:22 UTC) |
| 8,500 ft | 220° at 23 kt | −1 kt | 14 °C | 121 kt | 7 h 05 min | 6:51 am MDT (12:51 UTC) |
| 10,500 ft | 230° at 24 kt | +3 kt | 10 °C | 117 kt | 7 h 19 min | 7:05 am MDT (13:05 UTC) |
| 12,500 ft | 240° at 26 kt | +5 kt | 6 °C | 115 kt | 7 h 27 min | 7:13 am MDT (13:13 UTC) |
| 14,500 ft | 230° at 27 kt | +3 kt | 2 °C | 117 kt | 7 h 19 min | 7:05 am MDT (13:05 UTC) |
| 16,500 ft | 230° at 28 kt | 0 | -3 °C | 120 kt | 7 h 08 min | 6:54 am MDT (12:54 UTC) |
| 18,000 ft FL180 | 220° at 29 kt | −1 kt | -6 °C | 121 kt | 7 h 05 min | 6:51 am MDT (12:51 UTC) |
| 24,000 ft FL240 | 240° at 34 kt | +5 kt | -18 °C | 115 kt | 7 h 27 min | 7:13 am MDT (13:13 UTC) |
| 30,000 ft FL300 | 250° at 50 kt | +17 kt | -29 °C | 103 kt | 8 h 19 min | 8:05 am MDT (14:05 UTC) |
| 34,000 ft FL340 | 250° at 47 kt | +20 kt | -37 °C | 100 kt | 8 h 34 min | 8:20 am MDT (14:20 UTC) |
| 39,000 ft FL390 | 260° at 40 kt | +24 kt | -49 °C | 96 kt | 8 h 56 min | 8:42 am MDT (14:42 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| CLL | used from 0 nm out; 41 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 149 nm out; 51 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° |
| SPS | used from 249 nm out; 36 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° |
| AMA | used from 349 nm out; 83 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° | |
| PUB | used from 548 nm out; 102 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° | ||
| DEN | used from 747 nm out; 61 nm from the line | 240/21 14° | 250/44 6° | 220/49 -8° | 220/49 -21° | 230/54 -30° | 240/57 -35° | 240/49 -45° | ||
| GJT | used from 847 nm out; 101 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° |
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 |
|---|---|---|---|---|---|---|---|
| IAH Houston, TX | departure | VFR Sky: scattered clouds at 20,000 feet | calm | 10+ mi | none | 95 ft | 11:53 pm CDT (04:53 UTC) |
| CXO Houston, TX | 20 nm out, 11 nm northeast of the line, tower | VFR | from the east (100°) at 4 knots | 10+ mi | none | 244 ft | 04:53 UTC |
| CNW Waco, TX | 129 nm out, 6 nm west of the line, tower | VFR | from the south-southeast (160°) at 7 knots | 10+ mi | none | 470 ft | 05:35 UTC |
| FWS Fort Worth, TX | 179 nm out, 22 nm northeast of the line, tower | VFR | from the south-southeast (160°) at 7 knots | 10+ mi | none | 700 ft | 03:15 UTC |
| ONY Olney, TX | 269 nm out, 5 nm southwest of the line | no report just now | 1,275 ft | ||||
| CDS Childress, TX | 369 nm out, 16 nm southwest of the line | VFR | from the south (190°) at 17 knots, gusting to 26 | 10+ mi | none | 1,953 ft | 04:53 UTC |
| BGD Borger, TX | 458 nm out, 5 nm southwest of the line | VFR | from the south (170°) at 14 knots, gusting to 25 | 10+ mi | none | 3,055 ft | 04:51 UTC |
| PUB Pueblo, CO | 677 nm out, 6 nm south of the line, tower | VFR | from the south-southwest (200°) at 9 knots | 10+ mi | none | 4,729 ft | 04:53 UTC |
| COS Colorado Springs, CO | 707 nm out, 11 nm east of the line, tower | VFR Sky: a broken layer at 18,000 feet | from the south (180°) at 11 knots | 10+ mi | 18,000 ft | 6,187 ft | 04:54 UTC |
| GNB Granby, CO | 797 nm out, 25 nm northeast of the line | VFR Sky: scattered clouds at 4,600 feet, a broken layer at 8,000 feet | calm | 10+ mi | 8,000 ft | 8,207 ft | 05:35 UTC |
| HDN Hayden, CO | destination | VFR Sky: scattered clouds at 8,000 feet, a broken layer at 9,500 feet | from the south (180°) at 6 knots | 10+ mi | 9,500 ft | 6,606 ft | 10:56 pm MDT (04:56 UTC) |
The highest airport on this list sits at 8,207 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At HDN when you get there the forecast at the estimated arrival, 6:10 am MDT (12:10 UTC)
Wind from the south at 13 knots, gusting to 28, visibility more than 6 miles, low-level wind shear, a few clouds at 8,000 feet, a broken layer at 10,000 feet VFR
The whole forecast for HDN
- From Mon 12:00 am MDT (06:00 UTC): wind from the south at 13 knots, gusting to 28, visibility more than 6 miles, low-level wind shear, a few clouds at 8,000 feet, a broken layer at 10,000 feet
- From Mon 7:00 am MDT (13:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 5,000 feet
- From Mon 12:00 pm MDT (18:00 UTC): wind from the west-southwest at 13 knots, gusting to 23, visibility more than 6 miles, scattered clouds at 3,500 feet, a broken layer at 5,000 feet
- 30% chance between Mon 12:00 pm MDT (18:00 UTC) and 6:00 pm MDT (00:00 UTC): visibility 4 miles, light rain showers, overcast at 2,600 feet
- From Mon 6:00 pm MDT (00:00 UTC): wind from the north-northeast at 6 knots, visibility more than 6 miles, a few clouds at 6,000 feet, scattered clouds at 11,000 feet
- 30% chance between Mon 10:00 pm MDT (04:00 UTC) and 12:00 am MDT (06:00 UTC): visibility 4 miles, light rain showers, a broken layer at 5,000 feet
The forecast for IAH, the departure
- From Mon 1:00 am CDT (06:00 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
Temporary flight restrictions on the line or within 25 nm of it
- 6/8784 LAKE GEORGE, CO, Sunday, October 11, 2026 through Tuesday, October 13, 2026 UTC 5 nm from the route, 737 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV
Daylight
Sunset at IAH 6:54 pm CDT (23:54 UTC), at HDN 6:33 pm MDT (00:33 UTC) (civil twilight ends 7:01 pm MDT (01:01 UTC)). At 120 knots the arrival at HDN is before sunrise there (7:16 am MDT (13:16 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: George Bush Intcntl/Houston Airport, Yampa Valley Airport.