Okc Will Rogers International to Bozeman Yellowstone International OKC → BZN
875 nautical miles (1,007 statute miles) northwest on a straight line, true course 320°, about 316° magnetic at the departure end (variation 4E). At 120 knots that is 6 h 50 min at the quickest height in today's winds (4,500 ft, a 8-knot tailwind), arriving about 8:59 am MDT (14:59 UTC). Right now OKC is VFR, wind from the south (180°) at 12 knots; BZN is VFR, wind from the south (180°) at 3 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 3W: 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 first 308 nm of the route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 398 to 696 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 42,000 ft. Over the route from 418 to 666 nm out.
- 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 route from 477 to 657 nm out.
- AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Near the route, 637 nm along 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 219 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 219 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 666 to 796 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Near the route, at the destination end.
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 OKC.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B737 at 18,000 ft, 48 nm southwest, 2:24 am CDT (07:24 UTC): moderate turbulence, remarks: FL180-130. 468 nm along the route, 48 nm southwest of the line.
as filed, and in English
DEN UA /OV DEN330050/TM 0724/FL180/TP B737/TB MOD/RM FL180-130
- Report
- a routine report filed through DEN
- Where
- 50 nm northwest (330°) of DEN
- Time
- 07:24 UTC
- Height
- at 18,000 ft
- Aircraft
- B737
- Turbulence
- moderate
- Remarks
- FL180-130
- B38M at 30,000 ft, 36 nm southwest, 12:45 am CDT (05:45 UTC): moderate chop turbulence. 617 nm along the route, 36 nm southwest of the line.
as filed, and in English
RIW UA /OV BOY126080/TM 0545/FL300/TP B38M/TB CONS MOD CHOP /ZLC
- Report
- a routine report filed through RIW
- Where
- 80 nm southeast (126°) of BOY
- Time
- 05:45 UTC
- Height
- at 30,000 ft
- Aircraft
- B38M
- Turbulence
- continuous moderate chop zlc
- E73L descending, 0 nm northwest, 1:20 am CDT (06:20 UTC): remarks: breaking action good broke out about 600FT above ground. At the destination end, 0 nm northwest of the line.
as filed, and in English
BZN UA /OV BZN/TM 0620/FLDURD/TP E73L/RM BREAKING ACTION GOOD. BROKE OUT ABOUT 600FT AGL
- Report
- a routine report filed through BZN
- Where
- over BZN
- Time
- 06:20 UTC
- Height
- during the descent
- Aircraft
- E73L
- Remarks
- breaking action good broke out about 600FT above ground
- B737 , 0 nm northwest, 12:31 am CDT (05:31 UTC): remarks: saw the light at 500FT braking good no icing. At the destination end, 0 nm northwest of the line.
as filed, and in English
BZN UA /OV BZN/TM 0531/FLBURD/TP B737/RM SAW THE LIGHT AT 500FT. BRAKING GOOD. NEG ICING
- Report
- a routine report filed through BZN
- Where
- over BZN
- Time
- 05:31 UTC
- Height
- at BURD
- Aircraft
- B737
- Remarks
- saw the light at 500FT braking good no icing
Winds aloft along the route, and the time en route the forecast for use 02:00–09:00 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 9 forecast points nearest it (OKC, GAG, GCK, GLD, DEN, BFF, LND, BIL, 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 |
|---|---|---|---|---|---|---|
| 4,500 ft | 210° at 31 kt | −8 kt | 20 °C | 128 kt | 6 h 50 min | 8:59 am MDT (14:59 UTC) |
| 6,500 ft | 220° at 30 kt | −6 kt | 19 °C | 126 kt | 6 h 57 min | 9:06 am MDT (15:06 UTC) |
| 8,500 ft | 220° at 26 kt | −3 kt | 11 °C | 123 kt | 7 h 07 min | 9:16 am MDT (15:16 UTC) |
| 10,500 ft | 220° at 27 kt | −1 kt | 8 °C | 121 kt | 7 h 14 min | 9:23 am MDT (15:23 UTC) |
| 12,500 ft | 230° at 28 kt | 0 | 4 °C | 120 kt | 7 h 18 min | 9:27 am MDT (15:27 UTC) |
| 14,500 ft | 230° at 30 kt | 0 | -1 °C | 120 kt | 7 h 18 min | 9:27 am MDT (15:27 UTC) |
| 16,500 ft | 230° at 31 kt | 0 | -5 °C | 120 kt | 7 h 18 min | 9:27 am MDT (15:27 UTC) |
| 18,000 ft FL180 | 230° at 32 kt | 0 | -9 °C | 120 kt | 7 h 18 min | 9:27 am MDT (15:27 UTC) |
| 24,000 ft FL240 | 230° at 37 kt | +1 kt | -21 °C | 119 kt | 7 h 21 min | 9:30 am MDT (15:30 UTC) |
| 30,000 ft FL300 | 230° at 54 kt | +5 kt | -30 °C | 115 kt | 7 h 37 min | 9:46 am MDT (15:46 UTC) |
| 34,000 ft FL340 | 240° at 59 kt | +13 kt | -37 °C | 107 kt | 8 h 11 min | 10:20 am MDT (16:20 UTC) |
| 39,000 ft FL390 | 240° at 57 kt | +19 kt | -46 °C | 101 kt | 8 h 40 min | 10:49 am MDT (16:49 UTC) |
Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| OKC | used from 0 nm out; 25 nm from the line | 200/44 | 230/32 18° | 240/13 15° | 240/10 9° | 240/20 -5° | 250/27 -16° | 260/47 -28° | 270/48 -39° | 270/45 -50° |
| GAG | used from 50 nm out; 57 nm from the line | 220/40 19° | 230/28 14° | 240/23 8° | 230/21 -6° | 240/31 -19° | 250/66 -29° | 260/58 -38° | 260/47 -49° | |
| GCK | used from 149 nm out; 41 nm from the line | 220/48 21° | 230/37 14° | 250/30 8° | 230/37 -6° | 240/37 -20° | 240/69 -28° | 250/67 -37° | 260/58 -48° | |
| GLD | used from 249 nm out; 37 nm from the line | 230/49 | 230/42 15° | 220/26 8° | 240/18 -7° | 230/27 -21° | 240/62 -30° | 240/61 -35° | 250/57 -47° | |
| DEN | used from 398 nm out; 66 nm from the line | 240/21 14° | 250/44 6° | 220/49 -8° | 220/49 -21° | 230/54 -30° | 240/57 -35° | 240/49 -45° | ||
| BFF | used from 448 nm out; 54 nm from the line | 180/28 | 220/33 15° | 210/31 7° | 230/32 -9° | 220/41 -21° | 220/40 -33° | 240/47 -36° | 250/54 -46° | |
| LND | used from 597 nm out; 86 nm from the line | 200/23 6° | 220/31 1° | 220/39 -11° | 230/39 -23° | 220/51 -28° | 220/66 -37° | 230/68 -45° | ||
| BIL | used from 746 nm out; 78 nm from the line | 080/13 | 180/9 -2° | 210/38 0° | 220/51 -11° | 210/46 -22° | 210/58 -35° | 230/73 -39° | 230/72 -45° | |
| DLN | used from 846 nm out; 74 nm from the line | 090/6 -6° | 240/22 -4° | 210/34 -16° | 210/62 -25° | 210/66 -34° | 210/82 -36° | 220/77 -42° |
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 |
|---|---|---|---|---|---|---|---|
| OKC Oklahoma City, OK | departure | VFR | from the south (180°) at 12 knots | 10+ mi | none | 1,295 ft | 2:52 am CDT (07:52 UTC) |
| RQO El Reno, OK | 20 nm out, 12 nm southwest of the line | VFR | from the south (180°) at 11 knots | 10+ mi | none | 1,420 ft | 07:55 UTC |
| AVK Alva, OK | 99 nm out, 15 nm northeast of the line | VFR | from the south (190°) at 12 knots, gusting to 17 | 10+ mi | none | 1,476 ft | 07:55 UTC |
| GCK Garden City, KS | 209 nm out, 13 nm west of the line, tower | VFR | from the south-southwest (200°) at 21 knots, gusting to 32 | 10+ mi | none | 2,890 ft | 07:54 UTC |
| ITR Burlington, CO | 318 nm out, 13 nm southwest of the line | VFR | from the south (190°) at 11 knots | 10+ mi | none | 4,218 ft | 07:53 UTC |
| AKO Akron, CO | 388 nm out, 6 nm west of the line | VFR | from the west (270°) at 14 knots, gusting to 24 | 10+ mi | none | 4,716 ft | 07:53 UTC |
| CYS Cheyenne, WY | 487 nm out, 16 nm southwest of the line, tower | VFR | from the west (270°) at 20 knots, gusting to 37 | 10+ mi | none | 6,159 ft | 07:53 UTC |
| CPR Casper, WY | 607 nm out, 9 nm north of the line, tower | VFR Sky: a few clouds at 8,000 feet | from the west (280°) at 10 knots, gusting to 20 | 10+ mi | none | 5,344 ft | 07:53 UTC |
| WRL Worland, WY | 696 nm out, 11 nm north of the line | marginal VFR Sky: a few clouds at 800 feet, overcast at 1,600 feet | from the north (360°) at 6 knots | 10+ mi | 1,600 ft | 4,251 ft | 07:53 UTC |
| COD Cody, WY | 756 nm out, 4 nm north of the line | low IFR Sky: a broken layer at 400 feet, a broken layer at 1,200 feet, overcast at 1,800 feet | from the north-northeast (020°) at 12 knots | 10+ mi | 400 ft | 5,102 ft | 07:56 UTC |
| LVM Livingston, MT | 846 nm out, 16 nm northeast of the line | marginal VFR Sky: scattered clouds at 900 feet, a broken layer at 1,400 feet, overcast at 3,700 feet | from the north (360°) at 6 knots | 10+ mi | 1,400 ft | 4,659 ft | 07:55 UTC |
| BZN Bozeman, MT | destination | VFR Sky: scattered clouds at 700 feet, a broken layer at 4,600 feet, overcast at 10,000 feet Weather: light snow, mist | from the south (180°) at 3 knots | 6 mi | 4,600 ft | 4,473 ft | 1:56 am MDT (07:56 UTC) |
The highest airport on this list sits at 6,159 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, 8:59 am MDT (14:59 UTC)
Wind light and variable, visibility 6 miles, mist, scattered clouds at 800 feet VFR
The whole forecast for BZN
- From Mon 1:00 am MDT (07:00 UTC): wind light and variable, visibility 6 miles, mist, scattered clouds at 800 feet
- At times between Mon 1:00 am MDT (07:00 UTC) and 5:00 am MDT (11:00 UTC): overcast at 600 feet
- From Mon 10:00 am MDT (16:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 800 feet, overcast at 1,000 feet
- From Mon 2:00 pm MDT (20:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 800 feet, a broken layer at 1,500 feet
- From Mon 6:00 pm MDT (00:00 UTC): wind light and variable, visibility 6 miles, mist, scattered clouds at 800 feet, a broken layer at 2,000 feet
The forecast for OKC, the departure
- From Mon 1:00 am CDT (06:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, low-level wind shear, clear skies
- From Mon 9:00 am CDT (14:00 UTC): wind from the south-southwest at 17 knots, gusting to 27, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 8:00 pm CDT (01:00 UTC): wind from the south at 12 knots, visibility more than 6 miles, scattered clouds at 25,000 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 OKC 6:59 pm CDT (23:59 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: Okc Will Rogers International, Bozeman Yellowstone International.