Aspen-Pitkin County/Sardy Field to Claremore Regional ASE → GCM
568 nautical miles (654 statute miles) east on a straight line, true course 104°, about 095° magnetic at the departure end (variation 9E). At 120 knots that is 3 h 09 min at the quickest height in today's winds (34,000 ft, a 60-knot tailwind), arriving about 8:13 am CDT (13:13 UTC). Right now ASE is VFR, wind from the south (190°) at 5 knots; GCM is VFR, wind from the south (170°) at 8 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 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 100 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Near the route, at the departure end.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the first 159 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 130 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 10 nm of the route.
- 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 369 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 ASE.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- urgent BE20 at 500 ft, 47 nm southwest, 3:34 am MDT (09:34 UTC): remarks: low-level wind shear 500FT a 10-knot loss of airspeed zkc fd dl. 309 nm along the route, 47 nm southwest of the line.
as filed, and in English
LBL UUA /OV LBL/TM 0934/FL005/TP BE20/RM LLWS 500FT +/-10KT ZKC FD DL
- Report
- an urgent report filed through LBL
- Where
- over LBL
- Time
- 09:34 UTC
- Height
- at 500 ft
- Aircraft
- BE20
- Remarks
- low-level wind shear 500FT a 10-knot loss of airspeed zkc fd dl
- B38M at 22,000 ft, 9 nm northeast, 2:14 am MDT (08:14 UTC): no turbulence, remarks: zdvwc. 60 nm along the route, 9 nm northeast of the line.
as filed, and in English
DEN UA /OV DEN216059/TM 0814/FL220/TP B38M/TB NEG/RM ZDVWC
- Report
- a routine report filed through DEN
- Where
- 59 nm southwest (216°) of DEN
- Time
- 08:14 UTC
- Height
- at 22,000 ft
- Aircraft
- B38M
- Turbulence
- none
- Remarks
- zdvwc
- B38M at 37,000 ft, 22 nm south, 1:42 am MDT (07:42 UTC): light chop turbulence, remarks: mtw +/-7KT zdvwc. 70 nm along the route, 22 nm south of the line.
as filed, and in English
PUB UA /OV PUB280055/TM 0742/FL370/TP B38M/TB LGT CHOP/RM MTW +/-7KT. ZDVWC
- Report
- a routine report filed through PUB
- Where
- 55 nm west (280°) of PUB
- Time
- 07:42 UTC
- Height
- at 37,000 ft
- Aircraft
- B38M
- Turbulence
- light chop
- Remarks
- mtw +/-7KT zdvwc
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 6 forecast points nearest it (DEN, PUB, GCK, GAG, ICT, TUL). 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 | 240° at 35 kt | −23 kt | 22 °C | 143 kt | 3 h 58 min | 9:02 am CDT (14:02 UTC) |
| 7,500 ft | 250° at 34 kt | −26 kt | 15 °C | 146 kt | 3 h 53 min | 8:57 am CDT (13:57 UTC) |
| 9,500 ft | 250° at 31 kt | −23 kt | 12 °C | 143 kt | 3 h 58 min | 9:02 am CDT (14:02 UTC) |
| 11,500 ft | 240° at 29 kt | −19 kt | 8 °C | 139 kt | 4 h 05 min | 9:09 am CDT (14:09 UTC) |
| 13,500 ft | 240° at 31 kt | −19 kt | 3 °C | 139 kt | 4 h 05 min | 9:09 am CDT (14:09 UTC) |
| 15,500 ft | 230° at 34 kt | −20 kt | -1 °C | 140 kt | 4 h 03 min | 9:07 am CDT (14:07 UTC) |
| 17,500 ft | 230° at 37 kt | −22 kt | -6 °C | 142 kt | 4 h | 9:04 am CDT (14:04 UTC) |
| 18,000 ft FL180 | 230° at 38 kt | −22 kt | -7 °C | 142 kt | 4 h | 9:04 am CDT (14:04 UTC) |
| 24,000 ft FL240 | 230° at 42 kt | −25 kt | -19 °C | 145 kt | 3 h 55 min | 8:59 am CDT (13:59 UTC) |
| 30,000 ft FL300 | 250° at 71 kt | −56 kt | -29 °C | 176 kt | 3 h 14 min | 8:18 am CDT (13:18 UTC) |
| 34,000 ft FL340 | 260° at 70 kt | −60 kt | -36 °C | 180 kt | 3 h 09 min | 8:13 am CDT (13:13 UTC) |
| 39,000 ft FL390 | 260° at 62 kt | −55 kt | -49 °C | 175 kt | 3 h 15 min | 8:19 am CDT (13:19 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; 90 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 50 nm out; 53 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° | ||
| GCK | used from 199 nm out; 75 nm from the line | 240/40 22° | 240/40 14° | 240/38 7° | 230/39 -7° | 230/45 -20° | 250/73 -28° | 260/74 -36° | 260/64 -49° | |
| GAG | used from 349 nm out; 71 nm from the line | 240/35 22° | 240/27 14° | 230/25 6° | 240/38 -7° | 230/44 -19° | 250/73 -28° | 270/66 -37° | 270/58 -49° | |
| ICT | used from 399 nm out; 51 nm from the line | 230/45 | 240/33 21° | 230/23 14° | 230/22 7° | 240/29 -7° | 240/36 -20° | 260/78 -29° | 270/69 -36° | 270/56 -49° |
| TUL | used from 498 nm out; 31 nm from the line | 230/42 | 250/23 17° | 220/16 14° | 240/10 8° | 240/20 -6° | 260/28 -17° | 270/61 -29° | 280/52 -38° | 290/46 -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 |
|---|---|---|---|---|---|---|---|
| ASE Aspen, CO | departure | VFR Sky: a broken layer at 8,000 feet, overcast at 10,000 feet | from the south (190°) at 5 knots | 10+ mi | 8,000 ft | 7,837 ft | 3:53 am MDT (09:53 UTC) |
| LXV Leadville, CO | 20 nm out, 8 nm northeast of the line | VFR Sky: a broken layer at 6,500 feet | from the south (190°) at 9 knots | 10+ mi | 6,500 ft | 9,933 ft | 09:53 UTC |
| COS Colorado Springs, CO | 100 nm out, 5 nm east of the line, tower | VFR Sky: scattered clouds at 20,000 feet | from the southwest (230°) at 16 knots, gusting to 28 | 10+ mi | none | 6,187 ft | 09:54 UTC |
| PUB Pueblo, CO | 120 nm out, 25 nm south of the line, tower | VFR | calm | 10+ mi | none | 4,729 ft | 09:53 UTC |
| LAA Lamar, CO | 209 nm out, 13 nm southwest of the line | VFR | from the southwest (230°) at 10 knots | 10+ mi | none | 3,705 ft | 09:53 UTC |
| ULS Ulysses, KS | 279 nm out, 22 nm southwest of the line | VFR Sky: a few clouds at 4,000 feet, scattered clouds at 7,000 feet, a broken layer at 12,000 feet | from the south-southwest (200°) at 16 knots, gusting to 22 | 10+ mi | 12,000 ft | 3,071 ft | 09:55 UTC |
| GCK Garden City, KS | 299 nm out, 7 nm north of the line, tower | VFR | from the south-southwest (200°) at 17 knots, gusting to 29 | 10+ mi | none | 2,890 ft | 09:54 UTC |
| PTT Pratt, KS | 389 nm out, 25 nm northeast of the line | VFR | from the south (190°) at 14 knots | 10+ mi | none | 1,952 ft | 09:55 UTC |
| ANY Anthony, KS | 429 nm out, 6 nm northeast of the line | VFR | from the south (180°) at 11 knots | 10+ mi | none | 1,343 ft | 09:55 UTC |
| PNC Ponca City, OK | 488 nm out, 4 nm southwest of the line | VFR | from the south (170°) at 11 knots, gusting to 20 | 10+ mi | none | 1,008 ft | 09:53 UTC |
| TUL Tulsa, OK | 548 nm out, 13 nm south of the line, tower | VFR | from the south (170°) at 7 knots | 10+ mi | none | 677 ft | 09:53 UTC |
| GCM Claremore, OK | destination | VFR | from the south (170°) at 8 knots | 10+ mi | none | 733 ft | 4:55 am CDT (09:55 UTC) |
The highest airport on this list sits at 9,933 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At GCM when you get there the forecast at the estimated arrival, 8:13 am CDT (13:13 UTC)
GCM has no terminal forecast; use the nearest airport that does.
The forecast for ASE, the departure
- From Mon 12:00 am MDT (06:00 UTC): wind from the south-southeast at 6 knots, visibility more than 6 miles, low-level wind shear, a broken layer at 8,000 feet, a broken layer at 10,000 feet
- At times between Mon 12:00 am MDT (06:00 UTC) and 4:00 am MDT (10:00 UTC): visibility 4 miles, light rain showers, a broken layer at 6,000 feet
- From Mon 5:00 am MDT (11:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, a few clouds at 5,000 feet, scattered clouds at 12,000 feet
- From Mon 9:00 am MDT (15:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, a few clouds at 4,500 feet, a few clouds at 25,000 feet
- From Mon 1:00 pm MDT (19:00 UTC): wind from the south-southwest at 11 knots, gusting to 25, visibility more than 6 miles, a few clouds at 7,000 feet, a few clouds at 25,000 feet
- From Mon 6:00 pm MDT (00:00 UTC): wind from the southwest at 7 knots, visibility more than 6 miles, a few clouds at 6,000 feet, a few clouds at 20,000 feet
- 30% chance between Mon 6:00 pm MDT (00:00 UTC) and 12:00 am MDT (06:00 UTC): visibility 4 miles, light rain showers, a broken layer at 6,000 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 on the route, 70 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV
Daylight
Sunset at ASE 6:31 pm MDT (00:31 UTC), at GCM 6:50 pm CDT (23:50 UTC) (civil twilight ends 7:15 pm CDT (00:15 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: Aspen-Pitkin County/Sardy Field, Claremore Regional.