MC Ghee Tyson Airport to Scottsbluff/Western Nebraska Rgnl/Wm B Heilig Field TYS → BFF
983 nautical miles (1,132 statute miles) northwest on a straight line, true course 298°, about 304° magnetic at the departure end (variation 6W). At 120 knots that is 9 h 06 min at the quickest height in today's winds (12,500 ft, a 12-knot headwind), arriving about 8:27 am MDT (14:27 UTC). Right now TYS is marginal VFR, wind from the southwest (220°) at 5 knots; BFF is VFR, wind from the east (100°) at 6 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 SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 189 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 40 nm of the route.
- 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 route from 447 to 954 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the last 40 nm of the route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 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 TYS.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B738 descending, 0 nm west, 11:15 pm EDT (03:15 UTC): remarks: multiple layers from from 5,200 ft to 4,700 ft overcast at at 2,300 ft. At the departure end, 0 nm west of the line.
as filed, and in English
TYS UA /OV KTYS/TM 0315/FLDURD/TP B738/RM MULTIPLE LAYERS FROM 052-047 OVC AT 023
- Report
- a routine report filed through TYS
- Where
- over KTYS
- Time
- 03:15 UTC
- Height
- during the descent
- Aircraft
- B738
- Remarks
- multiple layers from from 5,200 ft to 4,700 ft overcast at at 2,300 ft
- A319 descending, 0 nm west, 10:52 pm EDT (02:52 UTC): remarks: tops 6,800 ft bases 2,300 ft. At the departure end, 0 nm west of the line.
as filed, and in English
TYS UA /OV KTYS/TM 0252/FLDURD/TP A319/RM TOPS 068 BASES 023
- Report
- a routine report filed through TYS
- Where
- over KTYS
- Time
- 02:52 UTC
- Height
- during the descent
- Aircraft
- A319
- Remarks
- tops 6,800 ft bases 2,300 ft
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 10 forecast points nearest it (TYS, BNA, EVV, CGI, STL, COU, MKC, OMA, GRI, BFF). 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 | 240° at 22 kt | +13 kt | 21 °C | 107 kt | 9 h 11 min | 8:32 am MDT (14:32 UTC) |
| 6,500 ft | 240° at 19 kt | +13 kt | 16 °C | 107 kt | 9 h 11 min | 8:32 am MDT (14:32 UTC) |
| 8,500 ft | 260° at 17 kt | +15 kt | 12 °C | 105 kt | 9 h 22 min | 8:43 am MDT (14:43 UTC) |
| 10,500 ft | 260° at 15 kt | +13 kt | 9 °C | 107 kt | 9 h 11 min | 8:32 am MDT (14:32 UTC) |
| 12,500 ft | 260° at 13 kt | +12 kt | 5 °C | 108 kt | 9 h 06 min | 8:27 am MDT (14:27 UTC) |
| 14,500 ft | 260° at 16 kt | +15 kt | 1 °C | 105 kt | 9 h 22 min | 8:43 am MDT (14:43 UTC) |
| 16,500 ft | 270° at 19 kt | +18 kt | -4 °C | 102 kt | 9 h 38 min | 8:59 am MDT (14:59 UTC) |
| 18,000 ft FL180 | 270° at 21 kt | +21 kt | -7 °C | 99 kt | 9 h 56 min | 9:17 am MDT (15:17 UTC) |
| 24,000 ft FL240 | 260° at 26 kt | +23 kt | -19 °C | 97 kt | 10 h 08 min | 9:29 am MDT (15:29 UTC) |
| 30,000 ft FL300 | 270° at 35 kt | +35 kt | -33 °C | 85 kt | 11 h 34 min | 10:55 am MDT (16:55 UTC) |
| 34,000 ft FL340 | 280° at 47 kt | +47 kt | -39 °C | 73 kt | 13 h 28 min | 12:49 pm MDT (18:49 UTC) |
| 39,000 ft FL390 | 280° at 48 kt | +49 kt | -49 °C | 71 kt | 13 h 51 min | 1:12 pm MDT (19:12 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| TYS | used from 0 nm out; 25 nm from the line | 320/20 | 340/18 11° | 340/32 9° | 340/36 4° | 330/37 -7° | 330/38 -19° | 330/50 -34° | 330/53 -38° | 330/44 -48° |
| BNA | used from 50 nm out; 66 nm from the line | 310/20 | 340/20 17° | 330/24 10° | 340/22 5° | 330/26 -6° | 340/29 -18° | 330/52 -33° | 320/62 -41° | 340/45 -50° |
| EVV | used from 149 nm out; 58 nm from the line | 280/15 | 290/12 17° | 310/16 10° | 320/13 5° | 310/22 -6° | 320/26 -18° | 320/38 -33° | 310/56 -41° | 320/55 -51° |
| CGI | used from 248 nm out; 42 nm from the line | 240/20 | 270/15 15° | 280/15 11° | 300/13 6° | 290/20 -6° | 280/24 -18° | 300/34 -32° | 300/47 -41° | 310/49 -51° |
| STL | used from 298 nm out; 39 nm from the line | 250/24 | 250/24 16° | 260/23 9° | 270/16 6° | 260/25 -6° | 270/29 -19° | 290/34 -33° | 290/48 -41° | 290/54 -51° |
| COU | used from 397 nm out; 10 nm from the line | 230/31 | 230/30 15° | 260/16 11° | 270/14 6° | 260/24 -6° | 270/27 -18° | 270/37 -32° | 280/49 -41° | 290/56 -51° |
| MKC | used from 497 nm out; 35 nm from the line | 220/44 | 250/28 18° | 250/18 13° | 240/12 6° | 280/24 -6° | 240/34 -18° | 260/47 -30° | 260/51 -40° | 270/58 -50° |
| OMA | used from 596 nm out; 77 nm from the line | 220/47 | 240/33 19° | 250/18 11° | 230/17 6° | 260/29 -8° | 250/33 -19° | 250/51 -33° | 260/61 -40° | 270/62 -49° |
| GRI | used from 646 nm out; 72 nm from the line | 230/35 21° | 230/23 13° | 220/20 7° | 240/25 -8° | 240/37 -20° | 250/49 -33° | 260/57 -38° | 260/58 -47° | |
| BFF | used from 844 nm out; 114 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° |
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 |
|---|---|---|---|---|---|---|---|
| TYS Knoxville, TN | departure | marginal VFR Sky: overcast at 2,700 feet | from the southwest (220°) at 5 knots | 10+ mi | 2,700 ft | 986 ft | 12:53 am EDT (04:53 UTC) |
| RKW Rockwood, TN | 30 nm out, 10 nm southwest of the line | VFR | variable at 5 knots | 10+ mi | none | 1,664 ft | 04:55 UTC |
| BWG Bowling Green, KY | 139 nm out, 9 nm northeast of the line | low IFR Sky: sky obscured at 200 feet Weather: fog | calm | 0.25 mi | 200 ft | 547 ft | 04:53 UTC |
| MWA Marion, IL | 268 nm out, 2 nm south of the line, tower | VFR | from the south-southwest (210°) at 4 knots | 10+ mi | none | 471 ft | 04:55 UTC |
| SUS St Louis, MO | 358 nm out, 17 nm north of the line, tower | VFR | from the west-southwest (240°) at 3 knots | 10+ mi | none | 463 ft | 04:54 UTC |
| COU Columbia, MO | 427 nm out, 6 nm west of the line, tower | VFR | from the south (180°) at 7 knots | 10+ mi | none | 889 ft | 04:54 UTC |
| STJ St Joseph, MO | 566 nm out, 4 nm northwest of the line, tower | VFR | from the south (190°) at 10 knots | 10+ mi | none | 826 ft | 04:53 UTC |
| BIE Beatrice, NE | 656 nm out, 5 nm northwest of the line | VFR | from the south (180°) at 12 knots, gusting to 16 | 10+ mi | none | 1,323 ft | 05:15 UTC |
| GRI Grand Island, NE | 735 nm out, 18 nm north of the line, tower | VFR | from the south (180°) at 12 knots | 10+ mi | none | 1,847 ft | 04:53 UTC |
| LBF North Platte, NE | 844 nm out, 7 nm southwest of the line | VFR | from the east-northeast (060°) at 3 knots | 10+ mi | none | 2,777 ft | 04:53 UTC |
| OKS Oshkosh, NE | 924 nm out, 12 nm south of the line | no report just now | 3,394 ft | ||||
| BFF Scottsbluff, NE | destination | VFR | from the east (100°) at 6 knots | 10+ mi | none | 3,967 ft | 10:53 pm MDT (04:53 UTC) |
The highest airport on this list sits at 3,967 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BFF when you get there the forecast at the estimated arrival, 8:27 am MDT (14:27 UTC)
Wind light and variable, visibility more than 6 miles, a broken layer at 15,000 feet VFR
The whole forecast for BFF
- From Mon 12:00 am MDT (06:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 15,000 feet
- From Mon 9:00 am MDT (15:00 UTC): wind from the west-northwest at 10 knots, visibility more than 6 miles, clear skies
- From Mon 3:00 pm MDT (21:00 UTC): wind from the north at 10 knots, gusting to 20, visibility more than 6 miles, a broken layer at 10,000 feet
The forecast for TYS, the departure
- From Mon 2:00 am EDT (06:00 UTC): wind from the southwest at 4 knots, visibility more than 6 miles, overcast at 2,500 feet
- From Mon 5:00 am EDT (09:00 UTC): wind from the southwest at 4 knots, visibility more than 6 miles, scattered clouds at 2,500 feet
- At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): a broken layer at 2,500 feet
- From Mon 12:00 pm EDT (16:00 UTC): wind from the west-southwest at 5 knots, visibility more than 6 miles, clear skies
Temporary flight restrictions on the line or within 25 nm of it
- 6/7634 CENTRALIA, MO, Monday, October 12, 2026 UTC 14 nm from the route, 437 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZKC
Daylight
Sunset at TYS 7:04 pm EDT (23:04 UTC), at BFF 6:17 pm MDT (00:17 UTC) (civil twilight ends 6:45 pm MDT (00:45 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: MC Ghee Tyson Airport, Scottsbluff/Western Nebraska Rgnl/Wm B Heilig Field.