Northern Colorado Regional to Yellowstone Regional FNL → COD
302 nautical miles (347 statute miles) northwest on a straight line, true course 325°, about 316° magnetic at the departure end (variation 9E). At 120 knots that is 2 h 20 min at the quickest height in today's winds (18,000 ft, a 9-knot tailwind), arriving about 11:22 am MDT (17:22 UTC). Right now FNL is VFR, wind from the south-southeast (160°) at 7 knots; COD is IFR, wind from the northeast (050°) at 7 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: 1 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 TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the first 156 nm of the route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the first 127 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 166 nm of the route.
- 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 last 136 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the last 97 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 FNL.
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 14:00–21:00 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 4 forecast points nearest it (DEN, BFF, LND, BIL). 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 | 240° at 14 kt | 0 | 5 °C | 120 kt | 2 h 31 min | 11:33 am MDT (17:33 UTC) |
| 10,500 ft | 230° at 19 kt | 0 | 3 °C | 120 kt | 2 h 31 min | 11:33 am MDT (17:33 UTC) |
| 12,500 ft | 230° at 24 kt | −1 kt | -1 °C | 121 kt | 2 h 30 min | 11:32 am MDT (17:32 UTC) |
| 14,500 ft | 230° at 26 kt | −4 kt | -5 °C | 124 kt | 2 h 26 min | 11:28 am MDT (17:28 UTC) |
| 16,500 ft | 220° at 29 kt | −7 kt | -10 °C | 127 kt | 2 h 23 min | 11:25 am MDT (17:25 UTC) |
| 18,000 ft FL180 | 220° at 31 kt | −9 kt | -13 °C | 129 kt | 2 h 20 min | 11:22 am MDT (17:22 UTC) |
| 24,000 ft FL240 | 220° at 53 kt | −9 kt | -24 °C | 129 kt | 2 h 20 min | 11:22 am MDT (17:22 UTC) |
| 30,000 ft FL300 | 230° at 60 kt | −6 kt | -31 °C | 126 kt | 2 h 24 min | 11:26 am MDT (17:26 UTC) |
| 34,000 ft FL340 | 230° at 68 kt | −8 kt | -38 °C | 128 kt | 2 h 22 min | 11:24 am MDT (17:24 UTC) |
| 39,000 ft FL390 | 230° at 63 kt | −9 kt | -44 °C | 129 kt | 2 h 20 min | 11:22 am MDT (17:22 UTC) |
Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 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; 63 nm from the line | 230/7 11° | 230/13 4° | 230/40 -9° | 230/48 -20° | 240/66 -32° | 240/88 -38° | 230/100 -47° | ||
| BFF | used from 49 nm out; 108 nm from the line | 310/15 | 280/27 8° | 250/27 2° | 230/30 -12° | 240/52 -22° | 250/66 -32° | 240/78 -37° | 240/76 -43° | |
| LND | used from 97 nm out; 105 nm from the line | 220/16 3° | 230/26 -1° | 210/30 -14° | 220/57 -26° | 220/60 -31° | 220/62 -38° | 220/52 -44° | ||
| BIL | used from 292 nm out; 83 nm from the line | L/V | 250/11 -1° | 240/20 -2° | 230/28 -15° | 220/28 -28° | 220/53 -34° | 220/55 -39° | 220/63 -44° |
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 |
|---|---|---|---|---|---|---|---|
| FNL Fort Collins/Loveland, CO | departure | VFR | from the south-southeast (160°) at 7 knots | 10+ mi | none | 5,020 ft | 8:56 am MDT (14:56 UTC) |
| LAR Laramie, WY | 58 nm out, 5 nm northeast of the line | VFR | from the south (190°) at 14 knots | 10+ mi | none | 7,283 ft | 14:53 UTC |
| HSG Thermopolis, WY | 244 nm out, 8 nm west of the line | marginal VFR Sky: scattered clouds at 900 feet, overcast at 1,600 feet | from the north (010°) at 3 knots | 10+ mi | 1,600 ft | 4,891 ft | 14:55 UTC |
| COD Cody, WY | destination | IFR Sky: overcast at 500 feet | from the northeast (050°) at 7 knots | 10+ mi | 500 ft | 5,102 ft | 8:56 am MDT (14:56 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 COD when you get there the forecast at the estimated arrival, 11:22 am MDT (17:22 UTC)
Wind from the north-northeast at 8 knots, visibility more than 6 miles, a broken layer at 500 feet, overcast at 1,500 feet IFR
The whole forecast for COD
- From Mon 8:00 am MDT (14:00 UTC): wind from the north-northeast at 8 knots, visibility more than 6 miles, a broken layer at 500 feet, overcast at 1,500 feet
- From Mon 12:00 pm MDT (18:00 UTC): wind from the northeast at 5 knots, visibility more than 6 miles, scattered clouds at 1,500 feet, overcast at 3,000 feet
- 30% chance between Mon 4:00 pm MDT (22:00 UTC) and 8:00 pm MDT (02:00 UTC): visibility 6 miles, light showers rain snow
- From Mon 8:00 pm MDT (02:00 UTC): wind from the east-northeast at 5 knots, visibility more than 6 miles, showers nearby, scattered clouds at 500 feet, a broken layer at 1,000 feet and more above
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 FNL 6:23 pm MDT (00:23 UTC), at COD 6:35 pm MDT (00:35 UTC) (civil twilight ends 7:04 pm MDT (01:04 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: Northern Colorado Regional, Yellowstone Regional.