Yampa Valley Airport to Casper/Natrona County International HDN → CPR
149 nautical miles (172 statute miles) north on a straight line, true course 013°, about 003° magnetic at the departure end (variation 10E). At 120 knots that is 51 min at the quickest height in today's winds (11,500 ft, a 55-knot tailwind), arriving about 8:30 pm MDT (02:30 UTC), after sunset at the destination. Right now HDN is VFR, wind from the southwest (220°) at 16 knots, gusting to 24; CPR is VFR, wind from the north-northeast (030°) 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: 547 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 1W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 8:55 pm MDT (02:55 UTC). Over the first 0 nm of the route.
as issued
WSUS33 KKCI 120055 MKCW WST 120055 CONVECTIVE SIGMET 1W VALID UNTIL 0255Z CO NM WY AZ UT FROM 40NNW CHE-40WNW TBE-60WNW CME-40N SJN-40ESE MTU-40NNW CHE AREA SEV TS MOV FROM 23040KT. TOPS TO FL340. WIND GUSTS TO 60KT POSS.
- SIGMET 3W: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 40 knots, until 8:55 pm MDT (02:55 UTC). Over the last 50 nm of the route.
as issued
WSUS33 KKCI 120055 MKCW WST 120055 CONVECTIVE SIGMET 3W VALID UNTIL 0255Z MT WY FROM 10WSW MLS-70E DDY-20N LAR-50E BPI-30NE BIL-10WSW MLS AREA TS MOV FROM 22040KT. TOPS TO FL310.
- 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 36,000 ft. Over the whole route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the whole route.
- AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Near the route, 30 nm along 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 HDN.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- urgent CRJ2 at 7,000 ft, 2 nm northeast, 7:04 pm MDT (01:04 UTC): moderate turbulence, remarks: low-level wind shear dept RY03 gain/loss unknown. At the destination end, 2 nm northeast of the line.
as filed, and in English
CPR UUA /OV CPR035002/TM 0104/FL070/TP CRJ2/TB CONT MOD TURB/RM LLWS DEPT RY03 GAIN/LOSS UNKN
- Report
- an urgent report filed through CPR
- Where
- 2 nm northeast (035°) of CPR
- Time
- 01:04 UTC
- Height
- at 7,000 ft
- Aircraft
- CRJ2
- Turbulence
- continuous moderate turbulence
- Remarks
- low-level wind shear dept RY03 gain/loss unknown
- B39M at 32,000 ft, 40 nm east, 5:58 pm MDT (23:58 UTC): moderate chop turbulence, no icing, remarks: moderate mtw a 30-knot loss of airspeed ZDVWC-14. At the departure end, 40 nm east of the line.
as filed, and in English
EEO UA /OV EKR069073/TM 2358/FL320/TP B39M/TB OCNL MOD CHOP/IC NEG/RM MOD MTW +/-30KT ZDVWC-14
- Report
- a routine report filed through EEO
- Where
- 73 nm east (069°) of EKR
- Time
- 23:58 UTC
- Height
- at 32,000 ft
- Aircraft
- B39M
- Turbulence
- occasional moderate chop
- Icing
- none
- Remarks
- moderate mtw a 30-knot loss of airspeed ZDVWC-14
- UAL796 at 30,000 ft, 41 nm southwest, 6:09 pm MDT (00:09 UTC): light chop turbulence, wind 230° at 42 knots. At the departure end, 41 nm southwest of the line.
as filed, and in English
ARP UAL796 4004N 10755W 0009 F300 230/042KT TB OCNL LGT CHOP IC
- Report
- a routine report filed through ARP
- B38M at 32,000 ft, 47 nm southeast, 5:27 pm MDT (23:27 UTC): light chop turbulence, no icing, remarks: ZDVWC-03. At the departure end, 47 nm southeast of the line.
as filed, and in English
ASE UA /OV DBL359020/TM 2327/FL320/TP B38M/TB CONS LGT CHOP OCNL MOD CHOP/IC NEG/RM ZDVWC-03
- Report
- a routine report filed through ASE
- Where
- 20 nm north (359°) of DBL
- Time
- 23:27 UTC
- Height
- at 32,000 ft
- Aircraft
- B38M
- Turbulence
- continuous light chop occasional moderate chop
- Icing
- none
- Remarks
- ZDVWC-03
- B39M at 31,000 ft, 41 nm southwest, 4:44 pm MDT (22:44 UTC): remarks: mountain wave a 15-knot loss of airspeed zdvwc. At the departure end, 41 nm southwest of the line.
as filed, and in English
EEO UA /OV EKR/TM 2244/FL310/TP B39M/RM MTN WAVE +/-15KTS ZDVWC
- Report
- a routine report filed through EEO
- Where
- over EKR
- Time
- 22:44 UTC
- Height
- at 31,000 ft
- Aircraft
- B39M
- Remarks
- mountain wave a 15-knot loss of airspeed zdvwc
- CRJ2 at 9,000 ft, 9 nm west, 6:35 pm MDT (00:35 UTC): light chop turbulence, vmc, remarks: occasional moderate turbulence at at 15,000 ft. 139 nm along the route, 9 nm west of the line.
as filed, and in English
CPR UA /OV CPR215015/TM 0035/FL090/TP CRJ2/WX VMC/TB LGT CHOP/RM OCNL MOD TURB AT 150
- Report
- a routine report filed through CPR
- Where
- 15 nm southwest (215°) of CPR
- Time
- 00:35 UTC
- Height
- at 9,000 ft
- Aircraft
- CRJ2
- Weather
- visual conditions
- Turbulence
- light chop
- Remarks
- occasional moderate turbulence at at 15,000 ft
Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 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 2 forecast points nearest it (RKS, 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 |
|---|---|---|---|---|---|---|
| 7,500 ft | 190° at 40 kt | −39 kt | 10 °C | 159 kt | 56 min | 8:35 pm MDT (02:35 UTC) |
| 9,500 ft | 190° at 42 kt | −42 kt | 9 °C | 162 kt | 55 min | 8:34 pm MDT (02:34 UTC) |
| 11,500 ft | 200° at 56 kt | −55 kt | 4 °C | 175 kt | 51 min | 8:30 pm MDT (02:30 UTC) |
| 13,500 ft | 210° at 59 kt | −57 kt | 0 °C | 177 kt | 51 min | 8:30 pm MDT (02:30 UTC) |
| 15,500 ft | 210° at 58 kt | −56 kt | -4 °C | 176 kt | 51 min | 8:30 pm MDT (02:30 UTC) |
| 17,500 ft | 210° at 58 kt | −55 kt | -8 °C | 175 kt | 51 min | 8:30 pm MDT (02:30 UTC) |
| 18,000 ft FL180 | 210° at 58 kt | −55 kt | -9 °C | 175 kt | 51 min | 8:30 pm MDT (02:30 UTC) |
| 24,000 ft FL240 | 210° at 54 kt | −52 kt | -21 °C | 172 kt | 52 min | 8:31 pm MDT (02:31 UTC) |
| 30,000 ft FL300 | 200° at 44 kt | −44 kt | -33 °C | 164 kt | 55 min | 8:34 pm MDT (02:34 UTC) |
| 34,000 ft FL340 | 230° at 60 kt | −48 kt | -38 °C | 168 kt | 53 min | 8:32 pm MDT (02:32 UTC) |
| 39,000 ft FL390 | 240° at 73 kt | −50 kt | -46 °C | 170 kt | 53 min | 8:32 pm MDT (02:32 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| RKS | used from 0 nm out; 99 nm from the line | 190/43 | 210/65 3° | 210/57 -9° | 210/56 -21° | 210/47 -33° | 230/63 -37° | 240/77 -46° | ||
| LND | used from 100 nm out; 96 nm from the line | 180/33 10° | 190/50 3° | 210/59 -9° | 200/50 -21° | 190/41 -34° | 230/55 -39° | 240/65 -47° |
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: a broken layer at 7,000 feet, a broken layer at 10,000 feet, overcast at 12,000 feet Weather: light rain | from the southwest (220°) at 16 knots, gusting to 24 | 10+ mi | 7,000 ft | 6,606 ft | 6:56 pm MDT (00:56 UTC) |
| DWX Dixon, WY | 30 nm out, 20 nm west of the line | VFR Sky: scattered clouds at 5,000 feet, overcast at 6,500 feet Weather: light rain | from the south-southeast (160°) at 15 knots, gusting to 28 | 10+ mi | 6,500 ft | 6,548 ft | 01:15 UTC |
| SAA Saratoga, WY | 60 nm out, 4 nm east of the line | reported, no category | from the south (170°) at 11 knots, gusting to 16 | 10+ mi | none | 7,014 ft | 01:10 UTC |
| CPR Casper, WY | destination | VFR Sky: scattered clouds at 10,000 feet, a broken layer at 11,000 feet | from the north-northeast (030°) at 5 knots | 10+ mi | 11,000 ft | 5,344 ft | 7:08 pm MDT (01:08 UTC) |
The highest airport on this list sits at 7,014 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, 8:30 pm MDT (02:30 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 VFR
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 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 HDN, the departure
- From Sun 6:00 pm MDT (00:00 UTC): wind from the southwest at 14 knots, gusting to 24, visibility more than 6 miles, a few clouds at 8,000 feet, scattered clouds at 10,000 feet
- At times between Sun 6:00 pm MDT (00:00 UTC) and 8:00 pm MDT (02:00 UTC): visibility 6 miles, light rain showers, a broken layer at 8,000 feet
- From Sun 8:00 pm MDT (02:00 UTC): wind from the south at 13 knots, gusting to 26, visibility more than 6 miles, low-level wind shear, a few clouds at 5,000 feet, scattered clouds at 12,000 feet
- From Mon 12:00 am MDT (06:00 UTC): wind from the south at 13 knots, gusting to 28, visibility more than 6 miles, low-level wind shear, a few clouds at 5,000 feet, scattered clouds at 10,000 feet
- From Mon 7:00 am MDT (13:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 5,000 feet
- 30% chance between Mon 12:00 pm MDT (18:00 UTC) and 6:00 pm MDT (00:00 UTC): visibility 4 miles, light rain showers, overcast at 2,600 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 HDN 6:33 pm MDT (00:33 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 after sunset there (6:30 pm MDT (00:30 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, Casper/Natrona County International.