Aspen-Pitkin County/Sardy Field to San Angelo Rgnl/Mathis Field ASE → SJT
566 nautical miles (651 statute miles) southeast on a straight line, true course 145°, about 136° magnetic at the departure end (variation 9E). At 120 knots that is 4 h 17 min at the quickest height in today's winds (39,000 ft, a 12-knot tailwind), arriving about 11:33 am CDT (16:33 UTC). Right now ASE is VFR, wind from the north (360°) at 3 knots; SJT is marginal VFR, wind from the south (170°) 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: 2 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 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the first 228 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 179 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 20 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 89 to 179 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 ASE.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B752 at 23,000 ft, 47 nm northeast, 5:39 am MDT (11:39 UTC): no turbulence, remarks: zdvwc. 30 nm along the route, 47 nm northeast 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
- A359 at 38,000 ft, 46 nm southwest, 4:13 am MDT (10:13 UTC): light chop turbulence, remarks: ZDVWC-37. 40 nm along the route, 46 nm southwest of the line.
as filed, and in English
GUC UA /OV HBU185015/TM 1013/FL380/TP A359/TB CONS LGT CHOP/RM ZDVWC-37
- Report
- a routine report filed through GUC
- Where
- 15 nm south (185°) of HBU
- Time
- 10:13 UTC
- Height
- at 38,000 ft
- Aircraft
- A359
- Turbulence
- continuous light chop
- Remarks
- ZDVWC-37
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 5 forecast points nearest it (GJT, ALS, TCC, LBB, ABI). 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 | 220° at 23 kt | +6 kt | 20 °C | 114 kt | 4 h 58 min | 12:14 pm CDT (17:14 UTC) |
| 7,500 ft | 220° at 22 kt | +5 kt | 16 °C | 115 kt | 4 h 55 min | 12:11 pm CDT (17:11 UTC) |
| 9,500 ft | 230° at 21 kt | +3 kt | 12 °C | 117 kt | 4 h 50 min | 12:06 pm CDT (17:06 UTC) |
| 11,500 ft | 230° at 26 kt | +2 kt | 6 °C | 118 kt | 4 h 48 min | 12:04 pm CDT (17:04 UTC) |
| 13,500 ft | 230° at 30 kt | +3 kt | 2 °C | 117 kt | 4 h 50 min | 12:06 pm CDT (17:06 UTC) |
| 15,500 ft | 230° at 35 kt | +4 kt | -2 °C | 116 kt | 4 h 53 min | 12:09 pm CDT (17:09 UTC) |
| 17,500 ft | 230° at 40 kt | +5 kt | -7 °C | 115 kt | 4 h 55 min | 12:11 pm CDT (17:11 UTC) |
| 18,000 ft FL180 | 230° at 41 kt | +5 kt | -8 °C | 115 kt | 4 h 55 min | 12:11 pm CDT (17:11 UTC) |
| 24,000 ft FL240 | 240° at 53 kt | −3 kt | -18 °C | 123 kt | 4 h 36 min | 11:52 am CDT (16:52 UTC) |
| 30,000 ft FL300 | 240° at 69 kt | 0 | -27 °C | 120 kt | 4 h 43 min | 11:59 am CDT (16:59 UTC) |
| 34,000 ft FL340 | 250° at 65 kt | −10 kt | -36 °C | 130 kt | 4 h 21 min | 11:37 am CDT (16:37 UTC) |
| 39,000 ft FL390 | 250° at 56 kt | −12 kt | -49 °C | 132 kt | 4 h 17 min | 11:33 am CDT (16:33 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| GJT | used from 0 nm out; 93 nm from the line | 220/26 6° | 230/39 0° | 220/55 -13° | 230/60 -23° | 230/78 -31° | 230/80 -35° | 230/74 -44° | ||
| ALS | used from 50 nm out; 47 nm from the line | 240/35 3° | 230/54 -9° | 240/66 -19° | 230/85 -26° | 240/87 -34° | 240/70 -47° | |||
| TCC | used from 198 nm out; 65 nm from the line | 240/20 | 230/22 13° | 230/27 6° | 230/40 -7° | 240/55 -18° | 240/74 -27° | 240/68 -37° | 250/64 -49° | |
| LBB | used from 347 nm out; 44 nm from the line | 220/25 21° | 230/20 15° | 220/20 7° | 230/36 -6° | 240/50 -15° | 240/59 -28° | 260/52 -37° | 260/45 -50° | |
| ABI | used from 496 nm out; 70 nm from the line | 200/30 19° | 220/12 16° | 220/11 9° | 230/15 -5° | 250/26 -15° | 250/39 -28° | 270/36 -38° | 280/30 -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 |
|---|---|---|---|---|---|---|---|
| ASE Aspen, CO | departure | VFR Sky: a few clouds at 8,000 feet | from the north (360°) at 3 knots | 10+ mi | none | 7,837 ft | 5:53 am MDT (11:53 UTC) |
| AEJ Buena Vista, CO | 40 nm out, 14 nm northeast of the line | VFR | from the east (100°) at 5 knots | 10+ mi | none | 7,950 ft | 11:55 UTC |
| ANK Salida, CO | 60 nm out, 9 nm northeast of the line | VFR | from the south-southwest (210°) at 10 knots | 10+ mi | none | 7,523 ft | 11:55 UTC |
| ALS Alamosa, CO | 119 nm out, 23 nm southwest of the line | VFR | from the south (190°) at 11 knots | 10+ mi | none | 7,539 ft | 11:52 UTC |
| RTN Raton, NM | 189 nm out, 8 nm northeast of the line | VFR | from the north-northwest (330°) at 3 knots | 10+ mi | none | 6,352 ft | 11:53 UTC |
| TCC Tucumcari, NM | 288 nm out, 8 nm southwest of the line | VFR | from the west (280°) at 5 knots | 10+ mi | none | 4,064 ft | 11:53 UTC |
| LIU Littlefield, TX | 387 nm out, 3 nm north of the line | no report just now | 3,615 ft | ||||
| LBB Lubbock, TX | 417 nm out, 17 nm northeast of the line, tower | VFR | from the south-southeast (150°) at 6 knots | 10+ mi | none | 3,282 ft | 11:53 UTC |
| BPG Big Spring, TX | 496 nm out, 17 nm southwest of the line | VFR | from the south (190°) at 10 knots | 10+ mi | none | 2,572 ft | 11:55 UTC |
| SJT San Angelo, TX | destination | marginal VFR Sky: a broken layer at 1,800 feet | from the south (170°) at 6 knots | 10+ mi | 1,800 ft | 1,918 ft | 7:05 am CDT (12:05 UTC) |
The highest airport on this list sits at 7,950 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SJT when you get there the forecast at the estimated arrival, 11:33 am CDT (16:33 UTC)
Wind from the south at 15 knots, gusting to 23, visibility more than 6 miles, a broken layer at 3,000 feet marginal VFR
The whole forecast for SJT
- From Mon 7:00 am CDT (12:00 UTC): wind from the south at 14 knots, gusting to 22, visibility more than 6 miles, a broken layer at 1,500 feet
- At times between Mon 7:00 am CDT (12:00 UTC) and 9:00 am CDT (14:00 UTC): scattered clouds at 2,000 feet
- From Mon 11:00 am CDT (16:00 UTC): wind from the south at 15 knots, gusting to 23, visibility more than 6 miles, a broken layer at 3,000 feet
- From Mon 1:00 pm CDT (18:00 UTC): wind from the south at 15 knots, gusting to 24, visibility more than 6 miles, a broken layer at 4,000 feet
- From Mon 7:00 pm CDT (00:00 UTC): wind from the south at 8 knots, visibility more than 6 miles, scattered clouds at 5,000 feet
The forecast for ASE, the departure
- From Mon 6:00 am MDT (12:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, scattered clouds at 5,000 feet, overcast at 8,000 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 12:00 pm MDT (18:00 UTC): wind from the south-southwest at 11 knots, gusting to 32, visibility more than 6 miles, a few clouds at 7,000 feet, a few clouds at 25,000 feet
- From Mon 8:00 pm MDT (02:00 UTC): wind from the southeast at 9 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 20,000 feet
- 30% chance between Mon 10:00 pm MDT (04:00 UTC) and 2:00 am MDT (08:00 UTC): visibility 4 miles, light rain showers, a broken layer at 6,000 feet
- From Tue 2:00 am MDT (08:00 UTC): wind from the southeast at 5 knots, visibility more than 6 miles, scattered clouds at 4,500 feet, a broken layer at 10,000 feet
- 30% chance between Tue 2:00 am MDT (08:00 UTC) and 6:00 am MDT (12:00 UTC): visibility 4 miles, light rain showers, a broken layer at 4,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/4240 SAN ANGELO, TX, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local 3 nm from the route, at the destination end · security · until 1 November · ZFW
Daylight
Sunset at ASE 6:31 pm MDT (00:31 UTC), at SJT 7:12 pm CDT (00:12 UTC) (civil twilight ends 7:37 pm CDT (00:37 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, San Angelo Rgnl/Mathis Field.