Montrose Regional to Bozeman Yellowstone International MTJ → BZN
460 nautical miles (529 statute miles) north on a straight line, true course 343°, about 331° magnetic at the departure end (variation 12E). At 120 knots that is 3 h at the quickest height in today's winds (34,000 ft, a 33-knot tailwind), arriving about 11:01 am MDT (17:01 UTC). 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 160 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 60 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the whole route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 50 to 430 nm out.
- 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 200 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the last 20 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 MTJ.
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 4 forecast points nearest it (GJT, RKS, LND, DLN). 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 12 kt | −6 kt | 1 °C | 126 kt | 3 h 39 min | 11:40 am MDT (17:40 UTC) |
| 10,500 ft | 230° at 20 kt | −8 kt | 0 °C | 128 kt | 3 h 36 min | 11:37 am MDT (17:37 UTC) |
| 12,500 ft | 230° at 28 kt | −11 kt | -2 °C | 131 kt | 3 h 31 min | 11:32 am MDT (17:32 UTC) |
| 14,500 ft | 220° at 32 kt | −16 kt | -7 °C | 136 kt | 3 h 23 min | 11:24 am MDT (17:24 UTC) |
| 16,500 ft | 220° at 37 kt | −20 kt | -11 °C | 140 kt | 3 h 17 min | 11:18 am MDT (17:18 UTC) |
| 18,000 ft FL180 | 220° at 40 kt | −24 kt | -15 °C | 144 kt | 3 h 12 min | 11:13 am MDT (17:13 UTC) |
| 24,000 ft FL240 | 220° at 53 kt | −26 kt | -24 °C | 146 kt | 3 h 09 min | 11:10 am MDT (17:10 UTC) |
| 30,000 ft FL300 | 220° at 61 kt | −32 kt | -32 °C | 152 kt | 3 h 02 min | 11:03 am MDT (17:03 UTC) |
| 34,000 ft FL340 | 220° at 63 kt | −33 kt | -36 °C | 153 kt | 3 h | 11:01 am MDT (17:01 UTC) |
| 39,000 ft FL390 | 220° at 59 kt | −31 kt | -44 °C | 151 kt | 3 h 03 min | 11:04 am MDT (17:04 UTC) |
Based on data from the 12th at 06:00 UTC; valid on the 12th 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| GJT | used from 0 nm out; 25 nm from the line | 220/26 6° | 230/39 0° | 220/55 -13° | 230/60 -23° | 230/78 -31° | 230/80 -35° | 230/74 -44° | ||
| RKS | used from 100 nm out; 68 nm from the line | 250/9 | 230/21 -1° | 210/43 -14° | 220/59 -23° | 220/55 -32° | 220/53 -35° | 220/48 -44° | ||
| LND | used from 250 nm out; 45 nm from the line | 240/10 3° | 240/30 0° | 220/42 -13° | 230/52 -23° | 220/54 -33° | 220/52 -36° | 220/53 -44° | ||
| DLN | used from 350 nm out; 100 nm from the line | 190/10 -4° | 220/23 -4° | 210/21 -18° | 210/43 -28° | 210/60 -33° | 210/72 -37° | 210/67 -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 |
|---|---|---|---|---|---|---|---|
| MTJ Montrose, CO | departure | no report just now | 5,758 ft | ||||
| GJT Grand Junction, CO | 40 nm out, 18 nm west of the line, tower | no report just now | 4,861 ft | ||||
| RKS Rock Springs, WY | 190 nm out, 6 nm northeast of the line | no report just now | 6,764 ft | ||||
| PNA Pinedale, WY | 270 nm out, 4 nm west of the line | no report just now | 7,096 ft | ||||
| DUB Dubois, WY | 310 nm out, 16 nm northeast of the line | no report just now | 7,298 ft | ||||
| WYS West Yellowstone, MT | 400 nm out, 21 nm southwest of the line | no report just now | 6,649 ft | ||||
| BZN Bozeman, MT | destination | no report just now | 4,473 ft |
The highest airport on this list sits at 7,298 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BZN when you get there the forecast at the estimated arrival, 11:01 am MDT (17:01 UTC)
BZN has no terminal forecast; use the nearest airport that does.
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 MTJ 6:36 pm MDT (00:36 UTC), at BZN 6:42 pm MDT (00:42 UTC) (civil twilight ends 7:12 pm MDT (01:12 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: Montrose Regional, Bozeman Yellowstone International.