Jackson Hole Airport to MC Ghee Tyson Airport JAC → TYS
1,314 nautical miles (1,512 statute miles) east on a straight line, true course 102°, about 089° magnetic at the departure end (variation 13E). At 120 knots that is 7 h 58 min at the quickest height in today's winds (34,000 ft, a 45-knot tailwind), arriving about 2:40 pm EDT (18:40 UTC). Right now JAC is VFR, wind calm; TYS is VFR, wind from the west-southwest (240°) at 4 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 ZULU 2C: moderate icing up to 23,000 ft. Over the first 139 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 30 nm of the route.
- 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 169 to 388 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the route from 179 to 299 nm out.
- AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Near the route, 179 nm along the route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Near the route, 209 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 route from 338 to 468 nm out.
- AIRMET TANGO 2W: 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 488 to 906 nm out.
- 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 last 169 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the last 60 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 JAC.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- BE9L at 17,000 ft, 7 nm northeast, 3:42 am MDT (09:42 UTC): light rime icing from 15,000 ft to 17,000 ft, 0 °C, remarks: zdvwc. 169 nm along the route, 7 nm northeast of the line.
as filed, and in English
CPR UA /OV DDY250025/TM 0942/FL170/TP BE9L/TA 00/IC LGT RIME 150-170/RM ZDVWC
- Report
- a routine report filed through CPR
- Where
- 25 nm west (250°) of DDY
- Time
- 09:42 UTC
- Height
- at 17,000 ft
- Aircraft
- BE9L
- Temperature
- 0 °C
- Icing
- light rime from 15,000 ft to 17,000 ft
- Remarks
- zdvwc
- E550 at 8,700 ft, 39 nm north, 4:30 am MDT (10:30 UTC): clear from 8,700 ft to 60,000 ft, remarks: visual conditions clear during the climb. 1105 nm along the route, 39 nm north of the line.
as filed, and in English
EVV UA /OV EVV/TM 1030/FL087/TP E550/SK SKC/RM VMC CLR DURC
- Report
- a routine report filed through EVV
- Where
- over EVV
- Time
- 10:30 UTC
- Height
- at 8,700 ft
- Aircraft
- E550
- Sky
- clear
- Remarks
- visual conditions clear during the climb
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 eastbound cruising heights for this course (VFR: odd thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 12 forecast points nearest it (LND, BFF, ONL, GRI, OMA, MKC, COU, STL, CGI, EVV, BNA, TYS). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 3,500 ft | 260° at 26 kt | −21 kt | 141 kt | 9 h 19 min | 4:01 pm EDT (20:01 UTC) | |
| 5,500 ft | 260° at 22 kt | −19 kt | 23 °C | 139 kt | 9 h 27 min | 4:09 pm EDT (20:09 UTC) |
| 7,500 ft | 260° at 18 kt | −16 kt | 13 °C | 136 kt | 9 h 40 min | 4:22 pm EDT (20:22 UTC) |
| 9,500 ft | 250° at 19 kt | −15 kt | 9 °C | 135 kt | 9 h 44 min | 4:26 pm EDT (20:26 UTC) |
| 11,500 ft | 240° at 21 kt | −15 kt | 6 °C | 135 kt | 9 h 44 min | 4:26 pm EDT (20:26 UTC) |
| 13,500 ft | 240° at 23 kt | −16 kt | 2 °C | 136 kt | 9 h 40 min | 4:22 pm EDT (20:22 UTC) |
| 15,500 ft | 240° at 24 kt | −17 kt | -3 °C | 137 kt | 9 h 35 min | 4:17 pm EDT (20:17 UTC) |
| 17,500 ft | 240° at 26 kt | −18 kt | -8 °C | 138 kt | 9 h 31 min | 4:13 pm EDT (20:13 UTC) |
| 18,000 ft FL180 | 240° at 26 kt | −19 kt | -9 °C | 139 kt | 9 h 27 min | 4:09 pm EDT (20:09 UTC) |
| 24,000 ft FL240 | 240° at 35 kt | −24 kt | -20 °C | 144 kt | 9 h 08 min | 3:50 pm EDT (19:50 UTC) |
| 30,000 ft FL300 | 260° at 45 kt | −39 kt | -32 °C | 159 kt | 8 h 16 min | 2:58 pm EDT (18:58 UTC) |
| 34,000 ft FL340 | 260° at 49 kt | −45 kt | -38 °C | 165 kt | 7 h 58 min | 2:40 pm EDT (18:40 UTC) |
| 39,000 ft FL390 | 270° at 46 kt | −45 kt | -47 °C | 165 kt | 7 h 58 min | 2:40 pm EDT (18:40 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| LND | used from 0 nm out; 76 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° | ||
| BFF | used from 199 nm out; 109 nm from the line | 280/28 | 260/39 11° | 240/34 5° | 210/38 -11° | 210/52 -22° | 230/61 -31° | 230/61 -36° | 240/56 -45° | |
| ONL | used from 448 nm out; 96 nm from the line | 250/31 22° | 230/27 16° | 220/25 8° | 230/25 -9° | 220/29 -22° | 250/42 -33° | 250/48 -36° | 250/52 -46° | |
| GRI | used from 498 nm out; 51 nm from the line | 230/39 23° | 230/32 15° | 210/29 7° | 230/31 -8° | 230/43 -21° | 250/52 -31° | 260/59 -35° | 260/59 -46° | |
| OMA | used from 647 nm out; 58 nm from the line | 230/47 | 240/33 21° | 230/22 13° | 220/27 5° | 240/35 -8° | 250/43 -21° | 260/47 -33° | 260/59 -36° | 270/58 -46° |
| MKC | used from 697 nm out; 66 nm from the line | 240/49 | 240/21 20° | 220/19 13° | 230/21 6° | 260/26 -7° | 250/37 -19° | 270/66 -31° | 270/65 -38° | 280/60 -48° |
| COU | used from 796 nm out; 63 nm from the line | 250/36 | 260/14 16° | 250/5 12° | 260/12 6° | 260/24 -7° | 260/35 -19° | 280/58 -31° | 280/62 -40° | 290/60 -49° |
| STL | used from 946 nm out; 20 nm from the line | 250/26 | 240/21 15° | 240/22 11° | 250/23 6° | 270/28 -7° | 260/30 -19° | 280/52 -31° | 280/57 -40° | 300/57 -49° |
| CGI | used from 995 nm out; 51 nm from the line | 260/22 | 250/15 15° | 250/13 11° | 250/16 6° | 270/29 -7° | 280/30 -18° | 290/40 -31° | 290/55 -40° | 300/51 -51° |
| EVV | used from 1045 nm out; 50 nm from the line | 270/25 | 290/17 15° | 260/10 8° | 270/16 5° | 280/29 -6° | 280/33 -19° | 290/38 -33° | 300/53 -41° | 310/54 -51° |
| BNA | used from 1145 nm out; 50 nm from the line | 300/20 | 300/14 15° | 300/14 10° | 300/13 4° | 310/22 -5° | 280/24 -18° | 310/37 -33° | 310/50 -41° | 320/49 -51° |
| TYS | used from 1244 nm out; 45 nm from the line | 330/16 | 350/32 14° | 350/37 9° | 340/30 5° | 330/28 -6° | 340/36 -19° | 330/40 -33° | 330/51 -41° | 330/36 -51° |
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 |
|---|---|---|---|---|---|---|---|
| JAC Jackson, WY | departure | VFR Sky: a broken layer at 3,800 feet, overcast at 5,000 feet Weather: light rain | calm | 10+ mi | 3,800 ft | 6,451 ft | 3:56 am MDT (09:56 UTC) |
| DUB Dubois, WY | 50 nm out, 8 nm northwest of the line | VFR Sky: scattered clouds at 4,300 feet, scattered clouds at 5,000 feet | from the west-northwest (290°) at 10 knots | 10+ mi | none | 7,298 ft | 10:35 UTC |
| CPR Casper, WY | 189 nm out, 3 nm east of the line, tower | VFR Sky: overcast at 6,000 feet | from the west-southwest (240°) at 20 knots, gusting to 26 | 10+ mi | 6,000 ft | 5,344 ft | 09:53 UTC |
| GUR Guernsey, WY | 279 nm out, 16 nm southwest of the line, tower | VFR | from the east-southeast (120°) at 7 knots | 10+ mi | none | 4,401 ft | 09:55 UTC |
| BBW Broken Bow, NE | 508 nm out, 6 nm north of the line | VFR | calm | 10+ mi | none | 2,546 ft | 09:53 UTC |
| GRI Grand Island, NE | 577 nm out, 4 nm west of the line, tower | VFR | from the south (190°) at 13 knots | 10+ mi | none | 1,847 ft | 09:53 UTC |
| STJ St Joseph, MO | 747 nm out, 11 nm southwest of the line, tower | VFR | from the south (190°) at 10 knots, gusting to 18 | 10+ mi | none | 826 ft | 09:53 UTC |
| COU Columbia, MO | 886 nm out, 15 nm southwest of the line, tower | VFR | from the south-southwest (200°) at 7 knots | 10+ mi | none | 889 ft | 09:54 UTC |
| MWA Marion, IL | 1045 nm out, 8 nm south of the line, tower | VFR | from the south-southwest (210°) at 4 knots | 10+ mi | none | 471 ft | 10:35 UTC |
| TWT Sturgis, KY | 1095 nm out, 3 nm northeast of the line | VFR | calm | 10+ mi | none | 372 ft | 10:35 UTC |
| TZV Tompkinsville, KY | 1214 nm out, 10 nm northeast of the line | no report just now | 1,036 ft | ||||
| TYS Knoxville, TN | destination | VFR Sky: a few clouds at 3,300 feet | from the west-southwest (240°) at 4 knots | 10+ mi | none | 986 ft | 5:53 am EDT (09:53 UTC) |
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 TYS when you get there the forecast at the estimated arrival, 2:40 pm EDT (18:40 UTC)
Wind from the west-southwest at 5 knots, visibility more than 6 miles, clear skies VFR
The whole forecast for TYS
- 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
The forecast for JAC, the departure
- From Mon 12:00 am MDT (06:00 UTC): wind from the south at 7 knots, visibility more than 6 miles, showers nearby, scattered clouds at 1,500 feet, overcast at 2,500 feet
- From Mon 7:00 am MDT (13:00 UTC): wind from the north-northeast at 5 knots, visibility 6 miles, light rain showers, scattered clouds at 1,000 feet, overcast at 1,800 feet
- From Mon 3:00 pm MDT (21:00 UTC): wind from the southwest at 7 knots, visibility more than 6 miles, scattered clouds at 2,000 feet, overcast at 3,500 feet
- 30% chance between Mon 3:00 pm MDT (21:00 UTC) and 9:00 pm MDT (03:00 UTC): visibility 5 miles, light rain showers, a broken layer at 2,500 feet
- From Mon 9:00 pm MDT (03:00 UTC): wind from the north-northeast at 4 knots, visibility 6 miles, light rain showers, scattered clouds at 2,000 feet, overcast at 3,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/7634 CENTRALIA, MO, Monday, October 12, 2026 UTC 4 nm from the route, 876 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZKC
Daylight
Sunset at JAC 6:43 pm MDT (00:43 UTC), at TYS 7:04 pm EDT (23:04 UTC) (civil twilight ends 7:30 pm EDT (23:30 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: Jackson Hole Airport, MC Ghee Tyson Airport.