City Of Colorado Springs Municipal to Casper/Natrona County International COS → CPR
259 nautical miles (298 statute miles) north on a straight line, true course 343°, about 335° magnetic at the departure end (variation 8E). At 120 knots that is 1 h 49 min at the quickest height in today's winds (18,000 ft, a 22-knot tailwind), arriving about 12:59 am MDT (06:59 UTC), after sunset at the destination. Right now COS is VFR, wind from the south (180°) at 11 knots; CPR is VFR, wind from the northwest (320°) 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
- SIGMET 7C: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 12:55 am MDT (06:55 UTC). Over the first 0 nm of the route.
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 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 whole 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 ZULU 2C: moderate icing up to 23,000 ft. Over the last 40 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Near the route, at the destination end.
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 COS.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- urgent B407 at 10,000 ft, 10 nm west, 8:13 pm MDT (02:13 UTC): moderate to severe turbulence. At the departure end, 10 nm west of the line.
as filed, and in English
COS UUA /OV 10 W COS/TM 0213/FL100/TP B407/TB MDT-SEV
- Report
- an urgent report filed through COS
- Where
- 10 west cos
- Time
- 02:13 UTC
- Height
- at 10,000 ft
- Aircraft
- B407
- Turbulence
- mdt-sev
- BE9L at 24,500 ft, 47 nm southwest, 8:21 pm MDT (02:21 UTC): moderate turbulence, remarks: ZDVWC-41. At the departure end, 47 nm southwest of the line.
as filed, and in English
PUB UA /OV PUB250040/TM 0221/FL245/TP BE9L/TB OCNL MOD/RM ZDVWC-41
- Report
- a routine report filed through PUB
- Where
- 40 nm west (250°) of PUB
- Time
- 02:21 UTC
- Height
- at 24,500 ft
- Aircraft
- BE9L
- Turbulence
- occasional moderate
- Remarks
- ZDVWC-41
- B738 at 23,000 ft, 6 nm northwest, 8:34 pm MDT (02:34 UTC): moderate turbulence, remarks: during the climb ZDVWC-05. 70 nm along the route, 6 nm northwest of the line.
as filed, and in English
DEN UA /OV DVV270030/TM 0234/FL230/TP B738/TB MOD /RM DURC ZDVWC-05
- Report
- a routine report filed through DEN
- Where
- 30 nm west (270°) of DVV
- Time
- 02:34 UTC
- Height
- at 23,000 ft
- Aircraft
- B738
- Turbulence
- moderate
- Remarks
- during the climb ZDVWC-05
- CL60 at 33,000 ft, 20 nm northeast, 8:35 pm MDT (02:35 UTC): remarks: mtw +/-100FT zdvwc. At the departure end, 20 nm northeast of the line.
as filed, and in English
COS UA /OV BRK080015/TM 0235/FL330/TP CL60/RM MTW +/-100FT ZDVWC
- Report
- a routine report filed through COS
- Where
- 15 nm east (080°) of BRK
- Time
- 02:35 UTC
- Height
- at 33,000 ft
- Aircraft
- CL60
- Remarks
- mtw +/-100FT zdvwc
- A320 descending, 20 nm east, 9:19 pm MDT (03:19 UTC): no turbulence up to 10,000 ft. 60 nm along the route, 20 nm east of the line.
as filed, and in English
DEN UA /OV DEN/TM 0319/FLDURD/TP A320/TB NEG BLO 100
- Report
- a routine report filed through DEN
- Where
- over DEN
- Time
- 03:19 UTC
- Height
- during the descent
- Aircraft
- A320
- Turbulence
- no below 10,000 ft
- B737 descending, 20 nm east, 8:29 pm MDT (02:29 UTC): no turbulence up to 10,000 ft. 60 nm along the route, 20 nm east of the line.
as filed, and in English
DEN UA /OV DEN/TM 0229/FLDURD/TP B737/TB NEG BLO 100
- Report
- a routine report filed through DEN
- Where
- over DEN
- Time
- 02:29 UTC
- Height
- during the descent
- Aircraft
- B737
- Turbulence
- no below 10,000 ft
- B38M at 21,500 ft, 13 nm west, 10:33 pm MDT (04:33 UTC): light turbulence up to 25,000 ft, remarks: during the descent flati star ZDVWC-13. 110 nm along the route, 13 nm west 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
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 3 forecast points nearest it (DEN, BFF, LND). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 8,500 ft | 220° at 22 kt | −10 kt | 12 °C | 130 kt | 2 h | 1:10 am MDT (07:10 UTC) |
| 10,500 ft | 230° at 30 kt | −9 kt | 9 °C | 129 kt | 2 h | 1:10 am MDT (07:10 UTC) |
| 12,500 ft | 240° at 37 kt | −10 kt | 4 °C | 130 kt | 2 h | 1:10 am MDT (07:10 UTC) |
| 14,500 ft | 230° at 39 kt | −14 kt | -1 °C | 134 kt | 1 h 56 min | 1:06 am MDT (07:06 UTC) |
| 16,500 ft | 230° at 41 kt | −19 kt | -5 °C | 139 kt | 1 h 52 min | 1:02 am MDT (07:02 UTC) |
| 18,000 ft FL180 | 220° at 43 kt | −22 kt | -9 °C | 142 kt | 1 h 49 min | 12:59 am MDT (06:59 UTC) |
| 24,000 ft FL240 | 220° at 45 kt | −23 kt | -21 °C | 143 kt | 1 h 49 min | 12:59 am MDT (06:59 UTC) |
| 30,000 ft FL300 | 230° at 50 kt | −22 kt | -30 °C | 142 kt | 1 h 49 min | 12:59 am MDT (06:59 UTC) |
| 34,000 ft FL340 | 230° at 56 kt | −17 kt | -36 °C | 137 kt | 1 h 53 min | 1:03 am MDT (07:03 UTC) |
| 39,000 ft FL390 | 240° at 54 kt | −12 kt | -45 °C | 132 kt | 1 h 58 min | 1:08 am MDT (07:08 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DEN | used from 0 nm out; 41 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° | ||
| BFF | used from 149 nm out; 103 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° | |
| LND | used from 199 nm out; 115 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° |
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 |
|---|---|---|---|---|---|---|---|
| COS Colorado Springs, CO | departure | VFR Sky: a broken layer at 18,000 feet | from the south (180°) at 11 knots | 10+ mi | 18,000 ft | 6,187 ft | 10:54 pm MDT (04:54 UTC) |
| BJC Denver, CO | 70 nm out, 2 nm east of the line, tower | VFR | from the southwest (230°) at 9 knots | 10+ mi | none | 5,673 ft | 04:55 UTC |
| FNL Fort Collins/Loveland, CO | 100 nm out, 16 nm east of the line, tower | VFR | from the north-northwest (340°) at 3 knots | 10+ mi | none | 5,020 ft | 04:56 UTC |
| LAR Laramie, WY | 159 nm out, 4 nm east of the line | VFR | from the southwest (220°) at 16 knots | 10+ mi | none | 7,283 ft | 04:53 UTC |
| CPR Casper, WY | destination | VFR Sky: a broken layer at 7,000 feet, a broken layer at 9,000 feet, overcast at 11,000 feet | from the northwest (320°) at 6 knots | 10+ mi | 7,000 ft | 5,344 ft | 10:53 pm MDT (04:53 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 CPR when you get there the forecast at the estimated arrival, 12:59 am MDT (06:59 UTC)
Wind from the south-southwest at 12 knots, gusting to 22, visibility more than 6 miles, a broken layer at 10,000 feet VFR
30% chance between Sun 10:00 pm MDT (04:00 UTC) and 4:00 am MDT (10:00 UTC): visibility 5 miles, light rain, a broken layer at 3,000 feet marginal VFR
The whole forecast for CPR
- From Sun 6:00 pm MDT (00:00 UTC): wind from the east-northeast at 12 knots, gusting to 18, visibility more than 6 miles, scattered clouds at 4,000 feet, overcast at 8,000 feet
- At times between Sun 6:00 pm MDT (00:00 UTC) and 10:00 pm MDT (04:00 UTC): visibility 5 miles, light rain, a broken layer at 3,000 feet
- From Sun 10:00 pm MDT (04:00 UTC): wind from the south-southwest at 12 knots, gusting to 22, visibility more than 6 miles, a broken layer at 10,000 feet
- 30% chance between Sun 10:00 pm MDT (04:00 UTC) and 4:00 am MDT (10:00 UTC): visibility 5 miles, light rain, a broken layer at 3,000 feet
- From Mon 12:00 pm MDT (18:00 UTC): wind from the west at 10 knots, visibility more than 6 miles, scattered clouds at 5,000 feet, a broken layer at 15,000 feet
The forecast for COS, the departure
- From Sun 9:00 pm MDT (03:00 UTC): wind from the west-southwest at 12 knots, visibility more than 6 miles, a broken layer at 10,000 feet, a broken layer at 20,000 feet
- From Sun 10:00 pm MDT (04:00 UTC): wind from the south at 12 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 20,000 feet
- From Mon 6:00 am MDT (12:00 UTC): wind from the north-northeast at 8 knots, visibility more than 6 miles, clear skies
- From Mon 11:00 am MDT (17:00 UTC): wind from the south at 15 knots, gusting to 25, visibility more than 6 miles, scattered clouds at 12,000 feet
Temporary flight restrictions on the line or within 25 nm of it
No temporary flight restriction on or near this route right now.
Daylight
Sunset at COS 6:25 pm MDT (00:25 UTC), at CPR 6:28 pm MDT (00:28 UTC) (civil twilight ends 6:56 pm MDT (00:56 UTC)). At 120 knots the arrival at CPR is before sunrise there (7:15 am MDT (13:15 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: City Of Colorado Springs Municipal, Casper/Natrona County International.