Sheridan County to Denver International SHR → DEN
312 nautical miles (359 statute miles) south on a straight line, true course 160°, about 150° magnetic at the departure end (variation 10E). At 120 knots that is 2 h 55 min at the quickest height in today's winds (9,500 ft, a 13-knot headwind), arriving about 4:23 am MDT (10:23 UTC), after sunset at the destination. Right now SHR is marginal VFR, wind from the northwest (310°) at 15 knots, gusting to 23; DEN is VFR, wind from the south-southwest (210°) at 24 knots, gusting to 32. 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: 1,522 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 SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 68 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 first 234 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the first 136 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the whole route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the whole route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 68 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 SHR.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B737 at 18,000 ft, 4 nm southwest, 1:24 am MDT (07:24 UTC): moderate turbulence, remarks: FL180-130. 263 nm along the route, 4 nm southwest of the line.
as filed, and in English
DEN UA /OV DEN330050/TM 0724/FL180/TP B737/TB MOD/RM FL180-130
- Report
- a routine report filed through DEN
- Where
- 50 nm northwest (330°) of DEN
- Time
- 07:24 UTC
- Height
- at 18,000 ft
- Aircraft
- B737
- Turbulence
- moderate
- Remarks
- FL180-130
- B38M at 21,500 ft, 32 nm southwest, 10:33 pm MDT (04:33 UTC): light turbulence up to 25,000 ft, remarks: during the descent flati star ZDVWC-13. 253 nm along the route, 32 nm southwest of the line.
as filed, and in English
DEN UA /OV DEN305065/TM 0433/FL215/TP B38M/TB LGT BLO 250/RM DURD FLATI STAR. ZDVWC-13
- Report
- a routine report filed through DEN
- Where
- 65 nm northwest (305°) of DEN
- Time
- 04:33 UTC
- Height
- at 21,500 ft
- Aircraft
- B38M
- Turbulence
- light below 25,000 ft
- Remarks
- during the descent flati star ZDVWC-13
- B737 descending, 3 nm south, 1:10 am MDT (07:10 UTC): remarks: smooth. At the destination end, 3 nm south of the line.
as filed, and in English
DEN UA /OV DEN/TM 0710/FLDURD/TP B737/RM SMOOTH
- Report
- a routine report filed through DEN
- Where
- over DEN
- Time
- 07:10 UTC
- Height
- during the descent
- Aircraft
- B737
- Remarks
- smooth
- A20N at 25,000 ft, 45 nm west, 12:19 am MDT (06:19 UTC): light chop turbulence up to 26,000 ft, remarks: during the climb ZDVWC-06. At the destination end, 45 nm west of the line.
as filed, and in English
DEN UA /OV DEN250045/TM 0619/FL250/TP A20N/TB OCNL LGT CHOP BLO 260/RM DURC. ZDVWC-06
- Report
- a routine report filed through DEN
- Where
- 45 nm west (250°) of DEN
- Time
- 06:19 UTC
- Height
- at 25,000 ft
- Aircraft
- A20N
- Turbulence
- occasional light chop below 26,000 ft
- Remarks
- during the climb ZDVWC-06
- B738 descending, 3 nm south, 12:15 am MDT (06:15 UTC): light chop turbulence. At the destination end, 3 nm south of the line.
as filed, and in English
DEN UA /OV DEN/TM 0615/FLDURD/TP B738/TB LGT CHOP
- Report
- a routine report filed through DEN
- Where
- over DEN
- Time
- 06:15 UTC
- Height
- during the descent
- Aircraft
- B738
- Turbulence
- light chop
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 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 4 forecast points nearest it (BIL, LND, BFF, DEN). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 7,500 ft | 210° at 20 kt | +14 kt | 9 °C | 106 kt | 2 h 57 min | 4:25 am MDT (10:25 UTC) |
| 9,500 ft | 220° at 24 kt | +13 kt | 8 °C | 107 kt | 2 h 55 min | 4:23 am MDT (10:23 UTC) |
| 11,500 ft | 220° at 32 kt | +15 kt | 5 °C | 105 kt | 2 h 58 min | 4:26 am MDT (10:26 UTC) |
| 13,500 ft | 220° at 35 kt | +16 kt | 0 °C | 104 kt | 3 h | 4:28 am MDT (10:28 UTC) |
| 15,500 ft | 220° at 38 kt | +18 kt | -4 °C | 102 kt | 3 h 04 min | 4:32 am MDT (10:32 UTC) |
| 17,500 ft | 220° at 40 kt | +19 kt | -9 °C | 101 kt | 3 h 05 min | 4:33 am MDT (10:33 UTC) |
| 18,000 ft FL180 | 220° at 41 kt | +19 kt | -10 °C | 101 kt | 3 h 05 min | 4:33 am MDT (10:33 UTC) |
| 24,000 ft FL240 | 220° at 43 kt | +21 kt | -22 °C | 99 kt | 3 h 09 min | 4:37 am MDT (10:37 UTC) |
| 30,000 ft FL300 | 220° at 49 kt | +25 kt | -31 °C | 95 kt | 3 h 17 min | 4:45 am MDT (10:45 UTC) |
| 34,000 ft FL340 | 230° at 58 kt | +20 kt | -37 °C | 100 kt | 3 h 07 min | 4:35 am MDT (10:35 UTC) |
| 39,000 ft FL390 | 240° at 59 kt | +14 kt | -45 °C | 106 kt | 2 h 57 min | 4:25 am MDT (10:25 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BIL | used from 0 nm out; 113 nm from the line | 080/13 | 180/9 -2° | 210/38 0° | 220/51 -11° | 210/46 -22° | 210/58 -35° | 230/73 -39° | 230/72 -45° | |
| LND | used from 49 nm out; 113 nm from the line | 200/23 6° | 220/31 1° | 220/39 -11° | 230/39 -23° | 220/51 -28° | 220/66 -37° | 230/68 -45° | ||
| BFF | used from 146 nm out; 94 nm from the line | 180/28 | 220/33 15° | 210/31 7° | 230/32 -9° | 220/41 -21° | 220/40 -33° | 240/47 -36° | 250/54 -46° | |
| DEN | used from 244 nm out; 44 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° |
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 |
|---|---|---|---|---|---|---|---|
| SHR Sheridan, WY | departure | marginal VFR Sky: overcast at 1,000 feet Weather: mist | from the northwest (310°) at 15 knots, gusting to 23 | 5 mi | 1,000 ft | 4,021 ft | 12:53 am MDT (06:53 UTC) |
| BYG Buffalo, WY | 29 nm out, 4 nm north of the line | low IFR Sky: overcast at 200 feet Weather: mist | from the north-northwest (330°) at 11 knots | 1.75 mi | 200 ft | 4,970 ft | 07:14 UTC |
| CPR Casper, WY | 117 nm out, 17 nm west of the line, tower | VFR | from the north-northwest (330°) at 10 knots | 8 mi | none | 5,344 ft | 06:53 UTC |
| LAR Laramie, WY | 214 nm out, 15 nm west of the line | VFR | from the southwest (220°) at 13 knots, gusting to 32 | 10+ mi | none | 7,283 ft | 06:53 UTC |
| CYS Cheyenne, WY | 234 nm out, 19 nm east of the line, tower | VFR | from the west-southwest (240°) at 21 knots, gusting to 31 | 10+ mi | none | 6,159 ft | 06:53 UTC |
| FNL Fort Collins/Loveland, CO | 273 nm out, 3 nm southwest of the line, tower | VFR | from the south (170°) at 7 knots | 10+ mi | none | 5,020 ft | 06:56 UTC |
| DEN Denver, CO | destination | VFR Sky: a few clouds at 6,000 feet, a broken layer at 18,000 feet | from the south-southwest (210°) at 24 knots, gusting to 32 | 10+ mi | 18,000 ft | 5,433 ft | 12:53 am MDT (06:53 UTC) |
The highest airport on this list sits at 7,283 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At DEN when you get there the forecast at the estimated arrival, 4:23 am MDT (10:23 UTC)
Wind from the south at 11 knots, visibility more than 6 miles, a few clouds at 22,000 feet VFR
The whole forecast for DEN
- From Mon 12:00 am MDT (06:00 UTC): wind from the south-southwest at 15 knots, gusting to 25, visibility more than 6 miles, a few clouds at 14,000 feet
- From Mon 3:00 am MDT (09:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, a few clouds at 22,000 feet
- From Mon 10:00 am MDT (16:00 UTC): wind from the southwest at 14 knots, gusting to 21, visibility more than 6 miles, clear skies
- From Mon 4:00 pm MDT (22:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, clear skies
- From Mon 7:00 pm MDT (01:00 UTC): wind from the northeast at 8 knots, visibility more than 6 miles, a few clouds at 15,000 feet
- From Mon 11:00 pm MDT (05:00 UTC): wind from the north at 10 knots, visibility more than 6 miles, a few clouds at 3,000 feet
The forecast for SHR, the departure
- From Mon 12:00 am MDT (06:00 UTC): wind from the northwest at 7 knots, visibility more than 6 miles, showers nearby, overcast at 600 feet
- From Mon 3:00 am MDT (09:00 UTC): wind from the northwest at 10 knots, gusting to 20, visibility 6 miles, light rain, mist, a few clouds at 400 feet, overcast at 800 feet
- From Mon 9:00 am MDT (15:00 UTC): wind from the northwest at 10 knots, visibility more than 6 miles, light drizzle, overcast at 1,000 feet
- From Mon 1:00 pm MDT (19:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 1,600 feet
- From Mon 4:00 pm MDT (22:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 2,500 feet
- From Mon 8:00 pm MDT (02:00 UTC): wind light and variable, visibility more than 6 miles, fog nearby, a few clouds at 200 feet, scattered clouds at 1,200 feet and more above
Temporary flight restrictions on the line or within 25 nm of it
- 6/8911 DENVER, CO, Monday, October 12, 2026 UTC 6 nm from the route, at the destination end · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZDV
Daylight
Sunset at SHR 6:27 pm MDT (00:27 UTC), at DEN 6:22 pm MDT (00:22 UTC) (civil twilight ends 6:49 pm MDT (00:49 UTC)). At 120 knots the arrival at DEN is before sunrise there (7:05 am MDT (13:05 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: Sheridan County, Denver International.