Yampa Valley Airport to George Bush Intcntl/Houston Airport HDN → IAH
857 nautical miles (986 statute miles) southeast on a straight line, true course 134°, about 124° magnetic at the departure end (variation 10E). At 120 knots that is 5 h 30 min at the quickest height in today's winds (39,000 ft, a 36-knot tailwind), arriving about 12:42 pm CDT (17:42 UTC). Right now HDN is VFR, wind variable at 4 knots, gusting to 18; IAH is VFR, wind from the east (090°) 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: 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
- 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 first 20 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the first 20 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the first 239 nm of the route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the first 169 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 60 nm of the route.
- 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 139 to 179 nm out.
- 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 route from 428 to 578 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 HDN.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- CRJ2 at 19,000 ft, 49 nm northeast, 5:49 am MDT (11:49 UTC): no turbulence, remarks: ZDVWC-13. 40 nm along the route, 49 nm northeast of the line.
as filed, and in English
DEN UA /OV DEN304074/TM 1149/FL190/TP CRJ2/TB NEG/RM ZDVWC-13
- Report
- a routine report filed through DEN
- Where
- 74 nm northwest (304°) of DEN
- Time
- 11:49 UTC
- Height
- at 19,000 ft
- Aircraft
- CRJ2
- Turbulence
- none
- Remarks
- ZDVWC-13
- B38M at 21,000 ft, 34 nm northeast, 5:24 am MDT (11:24 UTC): light to moderate chop turbulence, remarks: during the climb zdvwc. 80 nm along the route, 34 nm northeast of the line.
as filed, and in English
DEN UA /OV DEN277039/TM 1124/FL210/TP B38M/TB LGT-MOD CHOP BLO 180 NEG ABV 180/RM DURC. ZDVWC
- Report
- a routine report filed through DEN
- Where
- 39 nm west (277°) of DEN
- Time
- 11:24 UTC
- Height
- at 21,000 ft
- Aircraft
- B38M
- Turbulence
- light to moderate chop below 18,000 ft no above 18,000 ft
- Remarks
- during the climb zdvwc
- B763 at 23,000 ft, 36 nm northeast, 4:26 am MDT (10:26 UTC): light chop turbulence, remarks: zdvwc. 80 nm along the route, 36 nm northeast of the line.
as filed, and in English
DEN UA /OV DEN278037/TM 1026/FL230/TP B763/TB OCNL LGT CHOP/RM ZDVWC
- Report
- a routine report filed through DEN
- Where
- 37 nm west (278°) of DEN
- Time
- 10:26 UTC
- Height
- at 23,000 ft
- Aircraft
- B763
- Turbulence
- occasional light chop
- Remarks
- zdvwc
- UAL1735 at 19,000 ft, 13 nm northeast, 5:50 am MDT (11:50 UTC): light chop turbulence, wind 237° at 58 knots. 100 nm along the route, 13 nm northeast of the line.
as filed, and in English
ARP UAL1735 3925N 10525W 1150 F190 237/058KT TB INTMT LGT CHOP IC
- Report
- a routine report filed through ARP
- B752 at 23,000 ft, 3 nm west, 5:39 am MDT (11:39 UTC): no turbulence, remarks: zdvwc. 100 nm along the route, 3 nm west of the line.
as filed, and in English
DEN UA /OV DEN231058/TM 1139/FL230/TP B752/TB NEG/RM ZDVWC
- Report
- a routine report filed through DEN
- Where
- 58 nm southwest (231°) of DEN
- Time
- 11:39 UTC
- Height
- at 23,000 ft
- Aircraft
- B752
- Turbulence
- none
- Remarks
- zdvwc
- B738 at 11,000 ft, 8 nm northeast, 5:42 am MDT (11:42 UTC): light chop turbulence, remarks: during the climb. 159 nm along the route, 8 nm northeast of the line.
as filed, and in English
COS UA /OV BRK172014/TM 1142/FL110/TP B738/TB LGT CHOP/RM DURC
- Report
- a routine report filed through COS
- Where
- 14 nm south (172°) of BRK
- Time
- 11:42 UTC
- Height
- at 11,000 ft
- Aircraft
- B738
- Turbulence
- light chop
- Remarks
- during the climb
- B738 at 2,100 ft, 45 nm northeast, 5:55 am MDT (11:55 UTC): a routine report with nothing remarked on. 667 nm along the route, 45 nm northeast of the line.
as filed, and in English
DFW UA /OV 3 N OF DFW/TM 1155/FL021/TP B738/SK BASE021
- Report
- a routine report filed through DFW
- Where
- 3 north of dfw
- Time
- 11:55 UTC
- Height
- at 2,100 ft
- Aircraft
- B738
- Sky
- BASE021
- E170 at 2,200 ft, 45 nm northeast, 5:42 am MDT (11:42 UTC): scattered clouds above 2,200 ft, remarks: haze layer on final at 2200 ft. 667 nm along the route, 45 nm northeast of the line.
as filed, and in English
DFW UA /OV DFW/TM 1142/FL022/TP E170/SK SCT022/RM HAZE LAYER ON FINAL AT 2200 FT
- Report
- a routine report filed through DFW
- Where
- over DFW
- Time
- 11:42 UTC
- Height
- at 2,200 ft
- Aircraft
- E170
- Sky
- scattered clouds from 2,200 ft
- Remarks
- haze layer on final at 2200 ft
- B738 at 21,000 ft, 20 nm southwest, 5:48 am MDT (11:48 UTC): light to moderate turbulence, remarks: flight level at 19,000 ft FL220 zhu. 797 nm along the route, 20 nm southwest 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, 20 nm southwest, 5:35 am MDT (11:35 UTC): light chop turbulence, remarks: zhu. 797 nm along the route, 20 nm southwest 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
- B738 at 18,000 ft, 20 nm northeast, 5:59 am MDT (11:59 UTC): light turbulence, remarks: zhu. 817 nm along the route, 20 nm northeast 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
- A21N at 32,000 ft, 2 nm south, 6:04 am MDT (12:04 UTC): no turbulence, remarks: zhu. At the destination end, 2 nm south 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
- SF30 at 21,000 ft, 2 nm south, 3:35 am MDT (09:35 UTC): light rime icing, -10 °C, remarks: zhu. At the destination end, 2 nm south 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 eastbound cruising heights for this course (VFR: odd 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 (DEN, PUB, AMA, SPS, DAL, CLL, 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 |
|---|---|---|---|---|---|---|
| 5,500 ft | 210° at 27 kt | +7 kt | 113 kt | 7 h 35 min | 2:47 pm CDT (19:47 UTC) | |
| 7,500 ft | 240° at 25 kt | −5 kt | 14 °C | 125 kt | 6 h 51 min | 2:03 pm CDT (19:03 UTC) |
| 9,500 ft | 240° at 22 kt | −6 kt | 12 °C | 126 kt | 6 h 48 min | 2:00 pm CDT (19:00 UTC) |
| 11,500 ft | 240° at 20 kt | −3 kt | 8 °C | 123 kt | 6 h 58 min | 2:10 pm CDT (19:10 UTC) |
| 13,500 ft | 230° at 23 kt | −3 kt | 3 °C | 123 kt | 6 h 58 min | 2:10 pm CDT (19:10 UTC) |
| 15,500 ft | 230° at 27 kt | −3 kt | -1 °C | 123 kt | 6 h 58 min | 2:10 pm CDT (19:10 UTC) |
| 17,500 ft | 230° at 32 kt | −4 kt | -6 °C | 124 kt | 6 h 55 min | 2:07 pm CDT (19:07 UTC) |
| 18,000 ft FL180 | 230° at 33 kt | −4 kt | -7 °C | 124 kt | 6 h 55 min | 2:07 pm CDT (19:07 UTC) |
| 24,000 ft FL240 | 240° at 38 kt | −7 kt | -17 °C | 127 kt | 6 h 45 min | 1:57 pm CDT (18:57 UTC) |
| 30,000 ft FL300 | 250° at 54 kt | −20 kt | -29 °C | 140 kt | 6 h 07 min | 1:19 pm CDT (18:19 UTC) |
| 34,000 ft FL340 | 260° at 53 kt | −28 kt | -37 °C | 148 kt | 5 h 47 min | 12:59 pm CDT (17:59 UTC) |
| 39,000 ft FL390 | 270° at 51 kt | −36 kt | -49 °C | 156 kt | 5 h 30 min | 12:42 pm CDT (17:42 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DEN | used from 0 nm out; 101 nm from the line | 270/24 11° | 230/13 5° | 230/48 -8° | 230/46 -20° | 230/63 -30° | 240/78 -36° | 240/78 -48° | ||
| PUB | used from 149 nm out; 9 nm from the line | 260/45 11° | 240/38 6° | 230/47 -8° | 230/51 -19° | 240/74 -29° | 240/82 -35° | 250/72 -48° | ||
| AMA | used from 299 nm out; 92 nm from the line | 230/32 | 230/28 14° | 230/27 7° | 230/38 -6° | 230/50 -17° | 250/69 -28° | 260/62 -37° | 270/65 -49° | |
| SPS | used from 498 nm out; 57 nm from the line | 220/35 | 220/31 18° | 230/16 14° | 230/10 8° | 250/18 -5° | 250/32 -16° | 260/51 -28° | 280/46 -38° | 300/50 -50° |
| DAL | used from 647 nm out; 51 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° |
| CLL | used from 747 nm out; 29 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 847 nm out; 25 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° |
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 |
|---|---|---|---|---|---|---|---|
| HDN Hayden, CO | departure | VFR Sky: overcast at 5,000 feet | variable at 4 knots, gusting to 18 | 10+ mi | 5,000 ft | 6,606 ft | 5:56 am MDT (11:56 UTC) |
| GNB Granby, CO | 60 nm out, 25 nm northeast of the line | VFR Sky: scattered clouds at 6,500 feet, a broken layer at 7,500 feet | calm | 10+ mi | 7,500 ft | 8,207 ft | 11:55 UTC |
| COS Colorado Springs, CO | 149 nm out, 11 nm east of the line, tower | VFR | from the south (190°) at 13 knots | 10+ mi | none | 6,187 ft | 11:54 UTC |
| PUB Pueblo, CO | 179 nm out, 6 nm south of the line, tower | VFR | from the northwest (310°) at 6 knots | 10+ mi | none | 4,729 ft | 11:53 UTC |
| BGD Borger, TX | 398 nm out, 5 nm southwest of the line | VFR | from the south-southwest (210°) at 14 knots, gusting to 26 | 10+ mi | none | 3,055 ft | 11:51 UTC |
| CDS Childress, TX | 488 nm out, 16 nm southwest of the line | VFR | from the south-southeast (160°) at 7 knots | 10+ mi | none | 1,953 ft | 11:53 UTC |
| ONY Olney, TX | 588 nm out, 5 nm southwest of the line | no report just now | 1,275 ft | ||||
| FWS Fort Worth, TX | 677 nm out, 22 nm northeast of the line, tower | marginal VFR Sky: a broken layer at 2,100 feet | from the south-southeast (150°) at 5 knots | 10+ mi | 2,100 ft | 700 ft | 11:46 UTC |
| CNW Waco, TX | 727 nm out, 6 nm west of the line, tower | VFR | from the southeast (130°) at 5 knots | 10+ mi | none | 470 ft | 11:55 UTC |
| CXO Houston, TX | 837 nm out, 11 nm northeast of the line, tower | VFR | from the east (090°) at 3 knots | 10+ mi | none | 244 ft | 11:53 UTC |
| IAH Houston, TX | destination | 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 | 6:53 am CDT (11:53 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 IAH when you get there the forecast at the estimated arrival, 12:42 pm CDT (17:42 UTC)
Wind from the southeast at 12 knots, visibility more than 6 miles, scattered clouds at 3,500 feet, a broken layer at 25,000 feet VFR
The whole forecast for IAH
- From Mon 7:00 am CDT (12:00 UTC): wind from the east-southeast at 6 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 12 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 4:00 pm CDT (21:00 UTC): light rain showers
- From Mon 4:00 pm CDT (21:00 UTC): wind from the southeast at 13 knots, gusting to 20, visibility more than 6 miles, scattered clouds at 10,000 feet
- From Mon 10:00 pm CDT (03:00 UTC): wind from the southeast at 6 knots, visibility more than 6 miles, scattered clouds at 1,500 feet, overcast at 5,000 feet
- At times between Tue 5:00 am CDT (10:00 UTC) and 8:00 am CDT (13:00 UTC): overcast at 1,500 feet
The forecast for HDN, the departure
- From Mon 6:00 am MDT (12:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, a broken layer at 5,000 feet, overcast at 7,000 feet
- 30% chance between Mon 6:00 am MDT (12:00 UTC) and 12:00 pm MDT (18:00 UTC): visibility 4 miles, light rain showers, a broken layer at 4,000 feet
- From Mon 12:00 pm MDT (18:00 UTC): wind from the southwest at 10 knots, gusting to 20, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 8,000 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
- From Tue 12:00 am MDT (06:00 UTC): wind from the east-southeast at 6 knots, visibility more than 6 miles, a broken layer at 6,000 feet, overcast at 11,000 feet
- 30% chance between Tue 12:00 am MDT (06:00 UTC) and 3:00 am MDT (09:00 UTC): visibility 4 miles, light rain showers, a broken layer at 4,000 feet
- From Tue 3:00 am MDT (09:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 2,500 feet
- 30% chance between Tue 3:00 am MDT (09:00 UTC) and 6:00 am MDT (12:00 UTC): visibility 4 miles, light rain showers, a broken layer at 2,000 feet
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, 120 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV
Daylight
Sunset at HDN 6:32 pm MDT (00:32 UTC), at IAH 6:54 pm CDT (23:54 UTC) (civil twilight ends 7:18 pm CDT (00:18 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: Yampa Valley Airport, George Bush Intcntl/Houston Airport.
