Jackson Hole Airport to Yellowstone Regional JAC → COD
92 nautical miles (106 statute miles) northeast on a straight line, true course 053°, about 040° magnetic at the departure end (variation 13E). At 120 knots that is 30 min at the quickest height in today's winds (39,000 ft, a 65-knot tailwind), arriving about 7:18 pm MDT (01:18 UTC), after sunset at the destination. Right now JAC is marginal VFR, wind calm; COD is marginal VFR, wind from the northeast (040°) at 10 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 W70W: thunderstorms (a convective SIGMET) up to 32,000 ft, moving from the southwest at 40 knots, until 7:55 pm MDT (01:55 UTC). Over the last 0 nm of the route.
as issued
WSUS33 KKCI 112355 MKCW WST 112355 CONVECTIVE SIGMET 70W VALID UNTIL 0155Z MT WY FROM 30SSW MLS-60WNW BFF-40SSE OCS-10S BPI-10S BIL-30SSW MLS AREA TS MOV FROM 22040KT. TOPS TO FL320.
- 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 whole 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 whole route.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the first 37 nm of the 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 SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the whole 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 JAC.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- PC12 at 15,000 ft, 24 nm southwest, 5:47 pm MDT (23:47 UTC): light rime icing above 15,000 ft. At the departure end, 24 nm southwest of the line.
as filed, and in English
JAC UA /OV JAC200025/TM 2347/FL150/TP PC12/IC LGT RIME 150 /ZLC
- Report
- a routine report filed through JAC
- Where
- 25 nm south (200°) of JAC
- Time
- 23:47 UTC
- Height
- at 15,000 ft
- Aircraft
- PC12
- Icing
- light rime at 15,000 ft zlc
- CRJ7 at 17,000 ft, 29 nm south, 5:03 pm MDT (23:03 UTC): light rime icing, -6 °C. At the departure end, 29 nm south of the line.
as filed, and in English
JAC UA /OV JAC160030/TM 2303/FL170/TP CRJ7/TA M6/IC LGT RIME /ZLC
- Report
- a routine report filed through JAC
- Where
- 30 nm south (160°) of JAC
- Time
- 23:03 UTC
- Height
- at 17,000 ft
- Aircraft
- CRJ7
- Temperature
- −6 °C
- Icing
- light rime zlc
- A320 at 6,800 ft, 1 nm north, 4:08 pm MDT (22:08 UTC): scattered clouds above 6,800 ft; overcast above 8,000 ft. At the departure end, 1 nm north of the line.
as filed, and in English
JAC UA /OV JAC/TM 2208/FL068/TP A320/SK SCT068 OVC080
- Report
- a routine report filed through JAC
- Where
- over JAC
- Time
- 22:08 UTC
- Height
- at 6,800 ft
- Aircraft
- A320
- Sky
- SCT068 OVC080
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 1 forecast point nearest it (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 | 180° at 33 kt | −20 kt | 10 °C | 140 kt | 39 min | 7:27 pm MDT (01:27 UTC) |
| 9,500 ft | 180° at 36 kt | −23 kt | 9 °C | 143 kt | 39 min | 7:27 pm MDT (01:27 UTC) |
| 11,500 ft | 190° at 47 kt | −34 kt | 4 °C | 154 kt | 36 min | 7:24 pm MDT (01:24 UTC) |
| 13,500 ft | 200° at 52 kt | −41 kt | 0 °C | 161 kt | 34 min | 7:22 pm MDT (01:22 UTC) |
| 15,500 ft | 200° at 54 kt | −47 kt | -4 °C | 167 kt | 33 min | 7:21 pm MDT (01:21 UTC) |
| 17,500 ft | 210° at 58 kt | −53 kt | -8 °C | 173 kt | 32 min | 7:20 pm MDT (01:20 UTC) |
| 18,000 ft FL180 | 210° at 59 kt | −54 kt | -9 °C | 174 kt | 32 min | 7:20 pm MDT (01:20 UTC) |
| 24,000 ft FL240 | 200° at 50 kt | −42 kt | -21 °C | 162 kt | 34 min | 7:22 pm MDT (01:22 UTC) |
| 30,000 ft FL300 | 190° at 41 kt | −30 kt | -34 °C | 150 kt | 37 min | 7:25 pm MDT (01:25 UTC) |
| 34,000 ft FL340 | 230° at 55 kt | −55 kt | -39 °C | 175 kt | 32 min | 7:20 pm MDT (01:20 UTC) |
| 39,000 ft FL390 | 240° at 65 kt | −65 kt | -47 °C | 185 kt | 30 min | 7:18 pm MDT (01:18 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| LND | used from 0 nm out; 92 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 |
|---|---|---|---|---|---|---|---|
| JAC Jackson, WY | departure | marginal VFR Sky: scattered clouds at 700 feet, a broken layer at 1,300 feet, overcast at 3,000 feet Weather: light rain, mist | calm | 5 mi | 1,300 ft | 6,451 ft | 6:29 pm MDT (00:29 UTC) |
| COD Cody, WY | destination | marginal VFR Sky: overcast at 1,600 feet | from the northeast (040°) at 10 knots | 10+ mi | 1,600 ft | 5,102 ft | 5:56 pm MDT (23:56 UTC) |
The highest airport on this list sits at 6,451 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At COD when you get there the forecast at the estimated arrival, 7:18 pm MDT (01:18 UTC)
Wind from the north-northeast at 10 knots, visibility more than 6 miles, light showers rain snow, overcast at 1,000 feet marginal VFR
The whole forecast for COD
- From Sun 6:00 pm MDT (00:00 UTC): wind from the north-northeast at 10 knots, visibility more than 6 miles, light showers rain snow, overcast at 1,000 feet
- From Mon 3:00 am MDT (09:00 UTC): wind from the north-northeast at 10 knots, visibility 6 miles, mist, a broken layer at 1,000 feet, overcast at 1,800 feet
- From Mon 12:00 pm MDT (18:00 UTC): wind from the northeast at 4 knots, visibility more than 6 miles, scattered clouds at 1,500 feet, overcast at 3,000 feet
- 30% chance between Mon 12:00 pm MDT (18:00 UTC) and 6:00 pm MDT (00:00 UTC): visibility 6 miles, light rain showers
The forecast for JAC, the departure
- From Sun 6:00 pm MDT (00:00 UTC): wind from the west at 7 knots, visibility 6 miles, light rain showers, scattered clouds at 700 feet, a broken layer at 1,200 feet and more above
- At times between Sun 6:00 pm MDT (00:00 UTC) and 9:00 pm MDT (03:00 UTC): visibility 3 miles, rain, a broken layer at 700 feet
- From Sun 9:00 pm MDT (03:00 UTC): wind from the north-northeast at 5 knots, visibility more than 6 miles, showers nearby, scattered clouds at 1,500 feet, overcast at 2,500 feet
- From Mon 7:00 am MDT (13:00 UTC): wind from the north-northeast at 5 knots, visibility 6 miles, light rain showers, scattered clouds at 1,000 feet, overcast at 1,800 feet
- From Mon 3:00 pm MDT (21:00 UTC): wind from the southwest at 4 knots, visibility more than 6 miles, scattered clouds at 2,500 feet, overcast at 5,000 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 JAC 6:44 pm MDT (00:44 UTC), at COD 6:37 pm MDT (00:37 UTC) (civil twilight ends 7:06 pm MDT (01:06 UTC)). At 120 knots the arrival at COD is after sunset there (6:38 pm MDT (00:38 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: Jackson Hole Airport, Yellowstone Regional.