Jackson Hole Airport to Harrisburg International JAC → MDT
1,521 nautical miles (1,751 statute miles) east on a straight line, true course 086°, about 073° magnetic at the departure end (variation 13E). At 120 knots that is 9 h at the quickest height in today's winds (39,000 ft, a 49-knot tailwind), arriving about 2:45 pm EDT (18:45 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 SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 577 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the first 159 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 99 to 149 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Near the route, 139 nm along 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 308 nm out.
- 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 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 597 to 925 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, fog). Over the last 418 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 1372 to 1511 nm out.
- AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Near the route, at the destination end.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 33,000 ft. Over the last 10 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
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 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 14 forecast points nearest it (LND, RAP, PIR, ONL, FSD, MCW, LSE, DBQ, JOT, MKG, FWA, CLE, AGC, PSB). 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 | 250° at 18 kt | −17 kt | 137 kt | 11 h 06 min | 4:51 pm EDT (20:51 UTC) | |
| 5,500 ft | 260° at 15 kt | −16 kt | 15 °C | 136 kt | 11 h 11 min | 4:56 pm EDT (20:56 UTC) |
| 7,500 ft | 260° at 15 kt | −15 kt | 12 °C | 135 kt | 11 h 16 min | 5:01 pm EDT (21:01 UTC) |
| 9,500 ft | 260° at 16 kt | −16 kt | 8 °C | 136 kt | 11 h 11 min | 4:56 pm EDT (20:56 UTC) |
| 11,500 ft | 260° at 19 kt | −20 kt | 4 °C | 140 kt | 10 h 52 min | 4:37 pm EDT (20:37 UTC) |
| 13,500 ft | 260° at 20 kt | −21 kt | 0 °C | 141 kt | 10 h 47 min | 4:32 pm EDT (20:32 UTC) |
| 15,500 ft | 260° at 20 kt | −21 kt | -4 °C | 141 kt | 10 h 47 min | 4:32 pm EDT (20:32 UTC) |
| 17,500 ft | 260° at 21 kt | −22 kt | -9 °C | 142 kt | 10 h 43 min | 4:28 pm EDT (20:28 UTC) |
| 18,000 ft FL180 | 260° at 21 kt | −22 kt | -10 °C | 142 kt | 10 h 43 min | 4:28 pm EDT (20:28 UTC) |
| 24,000 ft FL240 | 260° at 26 kt | −27 kt | -21 °C | 147 kt | 10 h 21 min | 4:06 pm EDT (20:06 UTC) |
| 30,000 ft FL300 | 270° at 32 kt | −34 kt | -35 °C | 154 kt | 9 h 53 min | 3:38 pm EDT (19:38 UTC) |
| 34,000 ft FL340 | 270° at 40 kt | −43 kt | -40 °C | 163 kt | 9 h 20 min | 3:05 pm EDT (19:05 UTC) |
| 39,000 ft FL390 | 280° at 45 kt | −49 kt | -48 °C | 169 kt | 9 h | 2:45 pm EDT (18:45 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; 80 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° | ||
| RAP | used from 199 nm out; 111 nm from the line | 250/28 16° | 260/31 10° | 240/25 4° | 210/35 -10° | 200/45 -23° | 230/47 -31° | 230/47 -36° | 230/51 -46° | |
| PIR | used from 398 nm out; 52 nm from the line | 230/15 15° | 220/22 14° | 220/24 6° | 200/32 -10° | 210/48 -22° | 240/45 -33° | 240/43 -37° | 250/55 -46° | |
| ONL | used from 497 nm out; 68 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° | |
| FSD | used from 547 nm out; 37 nm from the line | 210/20 | 230/23 21° | 220/25 14° | 230/30 5° | 230/26 -9° | 240/30 -21° | 270/33 -36° | 260/47 -37° | 270/58 -47° |
| MCW | used from 696 nm out; 38 nm from the line | 250/36 | 250/24 19° | 240/26 11° | 250/30 5° | 270/22 -9° | 260/30 -21° | 260/31 -36° | 280/53 -38° | 280/66 -48° |
| LSE | used from 795 nm out; 59 nm from the line | 250/25 | 240/21 17° | 240/28 11° | 250/28 5° | 280/24 -10° | 280/31 -21° | 260/35 -37° | 270/45 -43° | 280/59 -47° |
| DBQ | used from 845 nm out; 30 nm from the line | 250/27 | 260/23 17° | 240/26 10° | 260/30 4° | 280/26 -9° | 280/36 -21° | 270/41 -36° | 280/52 -41° | 290/67 -48° |
| JOT | used from 945 nm out; 67 nm from the line | 250/25 | 260/22 14° | 250/17 9° | 270/21 5° | 280/28 -8° | 280/36 -20° | 270/41 -35° | 280/57 -42° | 290/65 -50° |
| MKG | used from 1044 nm out; 56 nm from the line | 260/28 | 260/18 15° | 250/16 9° | 260/22 4° | 280/31 -9° | 270/35 -21° | 270/44 -35° | 270/42 -45° | 290/61 -51° |
| FWA | used from 1094 nm out; 65 nm from the line | 270/20 | 300/16 15° | 290/14 10° | 280/17 3° | 290/25 -7° | 280/30 -19° | 280/34 -35° | 290/48 -44° | 300/64 -52° |
| CLE | used from 1193 nm out; 61 nm from the line | 310/7 | 350/20 14° | 340/16 9° | 320/21 2° | 320/32 -8° | 330/34 -20° | 330/45 -36° | 320/60 -45° | 320/64 -51° |
| AGC | used from 1342 nm out; 38 nm from the line | 340/11 | 350/12 11° | 360/25 7° | 340/30 2° | 340/41 -8° | 340/44 -21° | 350/59 -36° | 340/68 -42° | 340/50 -51° |
| PSB | used from 1392 nm out; 39 nm from the line | 020/21 12° | 360/28 7° | 360/29 1° | 350/33 -10° | 350/42 -22° | 350/49 -37° | 340/63 -43° | 350/39 -52° |
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 | no report just now | 6,451 ft | ||||
| HSG Thermopolis, WY | 99 nm out, 3 nm east of the line | no report just now | 4,891 ft | ||||
| ECS Newcastle, WY | 278 nm out, 8 nm north of the line | no report just now | 4,177 ft | ||||
| RAP Rapid City, SD | 338 nm out, 19 nm north of the line, tower | no report just now | 3,203 ft | ||||
| FSD Sioux Falls, SD | 607 nm out, 7 nm north of the line, tower | no report just now | 1,430 ft | ||||
| FXY Forest City, IA | 746 nm out, 2 nm north of the line | no report just now | 1,229 ft | ||||
| MRJ Mineral Point, WI | 895 nm out, 4 nm north of the line | no report just now | 1,170 ft | ||||
| UGN Chicago/Waukegan, IL | 1004 nm out, 4 nm southwest of the line, tower | no report just now | 728 ft | ||||
| AZO Kalamazoo, MI | 1104 nm out, 8 nm northeast of the line, tower | no report just now | 873 ft | ||||
| CLE Cleveland, OH | 1283 nm out, 4 nm northwest of the line, tower | no report just now | 799 ft | ||||
| UNV State College, PA | 1462 nm out, 22 nm north of the line, tower | no report just now | 1,231 ft | ||||
| MDT Harrisburg, PA | destination | no report just now | 310 ft |
The highest airport on this list sits at 6,451 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At MDT when you get there the forecast at the estimated arrival, 2:45 pm EDT (18:45 UTC)
MDT has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, 1303 nm along the route · a VIP movement · today · ZOB
- 6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, 1322 nm along the route · a VIP movement · today · ZOB
- 6/8888 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 5 nm from the route, 1332 nm along the route · security · today · ZOB
Daylight
Sunset at JAC 6:43 pm MDT (00:43 UTC), at MDT 6:32 pm EDT (22:32 UTC) (civil twilight ends 6:59 pm EDT (22:59 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, Harrisburg International.