Yellowstone Regional to Idaho Falls Regional COD → IDA
145 nautical miles (167 statute miles) southwest on a straight line, true course 246°, about 235° magnetic at the departure end (variation 11E). At 120 knots that is 1 h 11 min at the quickest height in today's winds (4,500 ft, a 3-knot tailwind), arriving about 4:32 am MDT (10:32 UTC), after sunset at the destination. Right now COD is marginal VFR, wind calm; IDA is VFR, wind from the north (010°) 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: 4 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 9E: 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 ZULU 1C: moderate icing up to 22,000 ft. Over the whole route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the whole route.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 0 nm of the route.
Turbulence AIRMET in force: moderate turbulence from 18,000 ft to 39,000 ft, over the last 0 nm of the route. No pilot has reported turbulence near the line in the last three hours. The government's turbulence forecast map ↗
Icing AIRMET in force: moderate icing up to 22,000 ft, over the whole route. No pilot has reported icing near the line in the last three hours. The freezing level is about 9,000 ft (from the winds-aloft temperatures), so icing is possible in cloud above that. The government's icing forecast map ↗
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 COD.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
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 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 (BIL, LND, PIH). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 4,500 ft | 350° at 10 kt | −3 kt | 123 kt | 1 h 11 min | 4:32 am MDT (10:32 UTC) | |
| 6,500 ft | 350° at 9 kt | −3 kt | 123 kt | 1 h 11 min | 4:32 am MDT (10:32 UTC) | |
| 8,500 ft | 360° at 2 kt | −1 kt | 1 °C | 121 kt | 1 h 12 min | 4:33 am MDT (10:33 UTC) |
| 10,500 ft | 200° at 3 kt | +2 kt | -2 °C | 118 kt | 1 h 14 min | 4:35 am MDT (10:35 UTC) |
| 12,500 ft | 190° at 7 kt | +5 kt | -5 °C | 115 kt | 1 h 16 min | 4:37 am MDT (10:37 UTC) |
| 14,500 ft | 190° at 9 kt | +5 kt | -9 °C | 115 kt | 1 h 16 min | 4:37 am MDT (10:37 UTC) |
| 16,500 ft | 190° at 10 kt | +6 kt | -14 °C | 114 kt | 1 h 16 min | 4:37 am MDT (10:37 UTC) |
| 18,000 ft FL180 | 190° at 11 kt | +7 kt | -17 °C | 113 kt | 1 h 17 min | 4:38 am MDT (10:38 UTC) |
| 24,000 ft FL240 | 180° at 17 kt | +8 kt | -29 °C | 112 kt | 1 h 18 min | 4:39 am MDT (10:39 UTC) |
| 30,000 ft FL300 | 210° at 35 kt | +29 kt | -40 °C | 91 kt | 1 h 36 min | 4:57 am MDT (10:57 UTC) |
| 34,000 ft FL340 | 210° at 37 kt | +29 kt | -43 °C | 91 kt | 1 h 36 min | 4:57 am MDT (10:57 UTC) |
| 39,000 ft FL390 | 210° at 38 kt | +31 kt | -43 °C | 89 kt | 1 h 38 min | 4:59 am MDT (10:59 UTC) |
Based on data from the 13th at 06:00 UTC; valid on the 13th 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BIL | used from 0 nm out; 97 nm from the line | 310/10 | 300/6 1° | 240/7 -3° | 310/5 -17° | 220/13 -29° | 240/32 -40° | 230/30 -42° | 230/30 -45° | |
| LND | used from 48 nm out; 108 nm from the line | 190/5 1° | 200/13 -3° | 210/33 -16° | 220/34 -27° | 220/54 -40° | 210/57 -43° | 210/71 -43° | ||
| PIH | used from 97 nm out; 65 nm from the line | 020/14 | 040/10 -1° | 130/7 -6° | 120/16 -18° | 120/32 -31° | 170/30 -40° | 180/29 -44° | 180/16 -41° |
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 |
|---|---|---|---|---|---|---|---|
| COD Cody, WY | departure | marginal VFR Sky: overcast at 1,000 feet | calm | 10+ mi | 1,000 ft | 5,102 ft | 2:56 am MDT (08:56 UTC) |
| JAC Jackson, WY | 87 nm out, 20 nm south of the line, tower | VFR Sky: a few clouds at 600 feet, a broken layer at 4,400 feet, a broken layer at 12,000 feet | from the southeast (130°) at 4 knots | 10+ mi | 4,400 ft | 6,451 ft | 08:56 UTC |
| DIJ Driggs, ID | 97 nm out, 7 nm south of the line | IFR Sky: overcast at 600 feet Weather: light rain | calm | 10+ mi | 600 ft | 6,257 ft | 05:56 UTC |
| IDA Idaho Falls, ID | destination | VFR Sky: overcast at 4,800 feet | from the north (010°) at 5 knots | 10+ mi | 4,800 ft | 4,743 ft | 2:53 am MDT (08:53 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.
The codes as issued, and in English, for every airport in the table
COD Cody, WY
the observation and the forecast as issued, and in English
METAR KCOD 130856Z AUTO 00000KT 10SM OVC010 03/01 A2997 RMK AO2 SLP156 T00280011 58001 $
- METAR
- a routine hourly observation
- KCOD
- the station, KCOD
- 130856Z
- observed 2:56 am MDT (08:56 UTC)
- AUTO
- fully automated report, nobody checked it
- 00000KT
- wind calm
- 10SM
- visibility 10 miles
- OVC010
- overcast at 1,000 feet
- 03/01
- temperature 3 °C (37 °F), dew point 1 °C (34 °F)
- A2997
- altimeter setting 29.97 inches of mercury
- RMK
- remarks follow
- AO2
- automated station with a precipitation sensor
- SLP156
- sea-level pressure 1015.6 hPa
- T00280011
- temperature 2.8 °C (37 °F), dew point 1.1 °C (34 °F)
- 58001
- pressure in the last three hours falling, faster lately, change 0.1 hPa
- $
- the station needs maintenance
TAF KCOD 130526Z 1306/1406 06005KT P6SM VCSH SCT004 BKN012 OVC020 PROB30 1306/1312 4SM -SN OVC004 FM131600 04007KT 4SM BR OVC012 PROB30 1318/1324 2SM RA
- TAF
- a terminal aerodrome forecast: the weather expected at the airport, usually for the next 24 or 30 hours
- KCOD
- the station, KCOD
- 130526Z
- issued 11:26 pm MDT (05:26 UTC)
- 1306/1406 06005KT P6SM VCSH SCT004 BKN012 OVC020
- valid from Tue 12:00 am MDT (06:00 UTC) to Wed 12:00 am MDT (06:00 UTC): wind from the east-northeast at 5 knots, visibility more than 6 miles, vcsh, scattered clouds at 400 feet, a broken layer at 1,200 feet, overcast at 2,000 feet
- PROB30 1306/1312 4SM -SN OVC004
- a 30% chance from Tue 12:00 am MDT (06:00 UTC) to Tue 6:00 am MDT (12:00 UTC): visibility 4 miles, light snow, overcast at 400 feet
- FM131600 04007KT 4SM BR OVC012
- from Tue 10:00 am MDT (16:00 UTC): wind from the northeast at 7 knots, visibility 4 miles, mist, overcast at 1,200 feet
- PROB30 1318/1324 2SM RA
- a 30% chance from Tue 12:00 pm MDT (18:00 UTC) to Tue 6:00 pm MDT (00:00 UTC): visibility 2 miles, rain
JAC Jackson, WY
the observation and the forecast as issued, and in English
METAR KJAC 130856Z AUTO 13004KT 10SM FEW006 BKN044 BKN120 03/03 A2992 RMK AO2 SLP120 T00330028 53002
- METAR
- a routine hourly observation
- KJAC
- the station, KJAC
- 130856Z
- observed 08:56 UTC on the 13th
- AUTO
- fully automated report, nobody checked it
- 13004KT
- wind from the southeast at 4 knots
- 10SM
- visibility 10 miles
- FEW006
- a few clouds at 600 feet
- BKN044
- a broken layer at 4,400 feet
- BKN120
- a broken layer at 12,000 feet
- 03/03
- temperature 3 °C (37 °F), dew point 3 °C (37 °F)
- A2992
- altimeter setting 29.92 inches of mercury
- RMK
- remarks follow
- AO2
- automated station with a precipitation sensor
- SLP120
- sea-level pressure 1012.0 hPa
- T00330028
- temperature 3.3 °C (38 °F), dew point 2.8 °C (37 °F)
- 53002
- pressure in the last three hours rising, faster lately, change 0.2 hPa
TAF KJAC 130526Z 1306/1406 03005KT 6SM -RA SCT020 OVC035 FM130900 02005KT P6SM VCSH SCT025 BKN035 OVC050 FM131400 02005KT 4SM -RA BR OVC025 PROB30 1315/1321 1SM RA OVC015 FM140100 04005KT P6SM VCSH SCT030 BKN050 BKN180
- TAF
- a terminal aerodrome forecast: the weather expected at the airport, usually for the next 24 or 30 hours
- KJAC
- the station, KJAC
- 130526Z
- issued 05:26 UTC on the 13th
- 1306/1406 03005KT 6SM -RA SCT020 OVC035
- valid from Tue 06:00 UTC to Wed 06:00 UTC: wind from the north-northeast at 5 knots, visibility 6 miles, light rain, scattered clouds at 2,000 feet, overcast at 3,500 feet
- FM130900 02005KT P6SM VCSH SCT025 BKN035 OVC050
- from Tue 09:00 UTC: wind from the north-northeast at 5 knots, visibility more than 6 miles, vcsh, scattered clouds at 2,500 feet, a broken layer at 3,500 feet, overcast at 5,000 feet
- FM131400 02005KT 4SM -RA BR OVC025
- from Tue 14:00 UTC: wind from the north-northeast at 5 knots, visibility 4 miles, light rain, mist, overcast at 2,500 feet
- PROB30 1315/1321 1SM RA OVC015
- a 30% chance from Tue 15:00 UTC to Tue 21:00 UTC: visibility 1 mile, rain, overcast at 1,500 feet
- FM140100 04005KT P6SM VCSH SCT030 BKN050 BKN180
- from Wed 01:00 UTC: wind from the northeast at 5 knots, visibility more than 6 miles, vcsh, scattered clouds at 3,000 feet, a broken layer at 5,000 feet, a broken layer at 18,000 feet
DIJ Driggs, ID
the observation and the forecast as issued, and in English
METAR KDIJ 130556Z AUTO 00000KT 10SM -RA OVC006 04/03 A2992 RMK AO2 RAB20 SLP122 P0001 60001 T00390033 10044 20039 58006
- METAR
- a routine hourly observation
- KDIJ
- the station, KDIJ
- 130556Z
- observed 05:56 UTC on the 13th
- AUTO
- fully automated report, nobody checked it
- 00000KT
- wind calm
- 10SM
- visibility 10 miles
- -RA
- light rain
- OVC006
- overcast at 600 feet
- 04/03
- temperature 4 °C (39 °F), dew point 3 °C (37 °F)
- A2992
- altimeter setting 29.92 inches of mercury
- RMK
- remarks follow
- AO2
- automated station with a precipitation sensor
- RAB20
- rain began 20 minutes past the hour
- SLP122
- sea-level pressure 1012.2 hPa
- P0001
- 0.01 inches of precipitation in the last hour
- 60001
- 0.01 inches of precipitation in the last three or six hours
- T00390033
- temperature 3.9 °C (39 °F), dew point 3.3 °C (38 °F)
- 10044
- highest temperature in the last six hours 4.4 °C (40 °F)
- 20039
- lowest temperature in the last six hours 3.9 °C (39 °F)
- 58006
- pressure in the last three hours falling, faster lately, change 0.6 hPa
TAF KDIJ 130831Z 1309/1406 VRB05KT 6SM -RA BR OVC006 FM132000 VRB06KT 6SM -SHRA BR OVC007 AMD LTD TO CLD VIS AND WIND
- TAF
- a terminal aerodrome forecast: the weather expected at the airport, usually for the next 24 or 30 hours
- KDIJ
- the station, KDIJ
- 130831Z
- issued 08:31 UTC on the 13th
- 1309/1406 VRB05KT 6SM -RA BR OVC006
- valid from Tue 09:00 UTC to Wed 06:00 UTC: wind light and variable, visibility 6 miles, light rain, mist, overcast at 600 feet
- FM132000 VRB06KT 6SM -SHRA BR OVC007 AMD LTD TO CLD VIS AND WIND
- from Tue 20:00 UTC: wind light and variable, visibility 6 miles, light rain showers, mist, overcast at 700 feet, amd, ltd, to, cld, vis, and, wind
IDA Idaho Falls, ID
the observation and the forecast as issued, and in English
METAR KIDA 130853Z AUTO 01005KT 10SM OVC048 05/03 A2991 RMK AO2 RAE38 SLP129 P0000 60001 T00500033 53002
- METAR
- a routine hourly observation
- KIDA
- the station, KIDA
- 130853Z
- observed 2:53 am MDT (08:53 UTC)
- AUTO
- fully automated report, nobody checked it
- 01005KT
- wind from the north at 5 knots
- 10SM
- visibility 10 miles
- OVC048
- overcast at 4,800 feet
- 05/03
- temperature 5 °C (41 °F), dew point 3 °C (37 °F)
- A2991
- altimeter setting 29.91 inches of mercury
- RMK
- remarks follow
- AO2
- automated station with a precipitation sensor
- RAE38
- rain ended 38 minutes past the hour
- SLP129
- sea-level pressure 1012.9 hPa
- P0000
- a trace of precipitation in the last hour
- 60001
- 0.01 inches of precipitation in the last three or six hours
- T00500033
- temperature 5 °C (41 °F), dew point 3.3 °C (38 °F)
- 53002
- pressure in the last three hours rising, faster lately, change 0.2 hPa
TAF KIDA 130520Z 1306/1406 VRB06KT 6SM -RA BR OVC025 FM131700 22010KT 6SM -SHRA BKN025 OVC040 FM132200 22010KT P6SM VCSH BKN040 BKN080
- TAF
- a terminal aerodrome forecast: the weather expected at the airport, usually for the next 24 or 30 hours
- KIDA
- the station, KIDA
- 130520Z
- issued 11:20 pm MDT (05:20 UTC)
- 1306/1406 VRB06KT 6SM -RA BR OVC025
- valid from Tue 12:00 am MDT (06:00 UTC) to Wed 12:00 am MDT (06:00 UTC): wind light and variable, visibility 6 miles, light rain, mist, overcast at 2,500 feet
- FM131700 22010KT 6SM -SHRA BKN025 OVC040
- from Tue 11:00 am MDT (17:00 UTC): wind from the southwest at 10 knots, visibility 6 miles, light rain showers, a broken layer at 2,500 feet, overcast at 4,000 feet
- FM132200 22010KT P6SM VCSH BKN040 BKN080
- from Tue 4:00 pm MDT (22:00 UTC): wind from the southwest at 10 knots, visibility more than 6 miles, vcsh, a broken layer at 4,000 feet, a broken layer at 8,000 feet
At IDA when you get there the forecast at the estimated arrival, 4:32 am MDT (10:32 UTC)
Wind light and variable, visibility 6 miles, light rain, mist, overcast at 2,500 feet marginal VFR
The whole forecast for IDA
- From Tue 12:00 am MDT (06:00 UTC): wind light and variable, visibility 6 miles, light rain, mist, overcast at 2,500 feet
- From Tue 11:00 am MDT (17:00 UTC): wind from the southwest at 10 knots, visibility 6 miles, light rain showers, a broken layer at 2,500 feet, overcast at 4,000 feet
- From Tue 4:00 pm MDT (22:00 UTC): wind from the southwest at 10 knots, visibility more than 6 miles, showers nearby, a broken layer at 4,000 feet, a broken layer at 8,000 feet
The forecast for COD, the departure
- From Tue 12:00 am MDT (06:00 UTC): wind from the east-northeast at 5 knots, visibility more than 6 miles, showers nearby, scattered clouds at 400 feet, a broken layer at 1,200 feet and more above
- 30% chance between Tue 12:00 am MDT (06:00 UTC) and 6:00 am MDT (12:00 UTC): visibility 4 miles, light snow, overcast at 400 feet
- From Tue 10:00 am MDT (16:00 UTC): wind from the northeast at 7 knots, visibility 4 miles, mist, overcast at 1,200 feet
- 30% chance between Tue 12:00 pm MDT (18:00 UTC) and 6:00 pm MDT (00:00 UTC): visibility 2 miles, rain
IDA: the forecast as issued, and in English
TAF KIDA 130520Z 1306/1406 VRB06KT 6SM -RA BR OVC025 FM131700 22010KT 6SM -SHRA BKN025 OVC040 FM132200 22010KT P6SM VCSH BKN040 BKN080
COD: the forecast as issued, and in English
TAF KCOD 130526Z 1306/1406 06005KT P6SM VCSH SCT004 BKN012 OVC020 PROB30 1306/1312 4SM -SN OVC004 FM131600 04007KT 4SM BR OVC012 PROB30 1318/1324 2SM RA
Temporary flight restrictions on the line or within 25 nm of it
No temporary flight restriction on or near this route right now.
Notices to air missions closures and things out of service at both ends; airspace, navigation aids and obstructions near the line
COD: 3 notices in force, 4 starting within a week. all of them, grouped →
IDA: 7 notices in force. all of them, grouped →
2 notices near the line (airspace and special activity within 25 nm, navigation aids within 25 nm, obstructions within 5 nm):
- Obstruction tower lights (ASR 1229608) 43°40′N 112°03′W (6.1 nautical miles WNW U56) 5016.1FT (200.1FT above ground level) out of service until Wed 14 Oct, 9:47 pm MDT (03:47 UTC) · 145 nm along the route, 10 nm off the line · U56 09/267
as issued
!BOI 09/267 U56 OBST TOWER LGT (ASR 1229608) 434037.10N1120337.90W (6.1NM WNW U56) 5016.1FT (200.1FT AGL) U/S 2609300447-2610150347
- Airspace aerobatic aircraft within an area defined as 1.5 nautical miles radius of COD012016 the surface-10,000 ft daily SR-SS until Tue 29 Jun, 9:05 pm MDT (03:05 UTC) · Daily:SR-SS~DLY SR-SS · 0 nm along the route, 23 nm off the line · POY 08/022
as issued
!CPR 08/022 POY AIRSPACE AEROBATIC ACFT WI AN AREA DEFINED AS 1.5NM RADIUS OF COD012016 SFC-10000FT DLY SR-SS 2408131216-2706300305
From the FAA's notice service (NOTAMs), the site's copy refreshed every few minutes; last checked 2 minutes ago. The FAA has so far issued eFlight its test feed, which misses some notices (checked against the FAA's own search on 12 October: about a third missing at Santa Barbara and Burbank, none at Atlanta or Las Vegas); the request for the full feed is with the FAA. Times are local to the field. This is for planning; the legal briefing comes from Flight Service or the FAA's own tools.
Daylight
Sunset at COD 6:33 pm MDT (00:33 UTC), at IDA 6:46 pm MDT (00:46 UTC) (civil twilight ends 7:15 pm MDT (01:15 UTC)). At 120 knots the arrival at IDA is before sunrise there (7:39 am MDT (13:39 UTC)).
Each restriction opens the FAA's own page with the exact area, heights and times.
The wind over the route live wind map, from Windy.com · drag the time bar for the coming hours; the level menu changes the height
Colours show wind speed, the moving lines its direction, at the surface unless you pick a height. Map and forecast by Windy.com; a second opinion beside the government's winds-aloft table above.
Radar and forecast charts for the regions crossed government pictures, the latest each time the page loads · the turbulence and icing forecasts: turbulence ↗ · icing ↗








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: Yellowstone Regional, Idaho Falls Regional.
