Duluth International to MC Ghee Tyson Airport DLH → TYS
758 nautical miles (872 statute miles) southeast on a straight line, true course 148°, about 149° magnetic at the departure end (variation 1W). At 120 knots that is 4 h 37 min at the quickest height in today's winds (39,000 ft, a 44-knot tailwind), arriving about 8:20 am EDT (12:20 UTC). Right now DLH is marginal VFR, wind from the east (090°) at 12 knots; TYS is VFR, wind from the south-southwest (210°) 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 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), from 1:00 am CDT (06:00 UTC). Over the route from 110 to 239 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), from 1:00 am CDT (06:00 UTC). Over the last 309 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist), from 1:00 am CDT (06:00 UTC). 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 DLH.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B739 at 35,000 ft, 26 nm west, 2:05 am CDT (07:05 UTC): no turbulence. 399 nm along the route, 26 nm west of the line.
as filed, and in English
TIP UA /OV RBS010023/TM 0705/FL350/TP B739/TB NEG
- Report
- a routine report filed through TIP
- Where
- 23 nm north (010°) of RBS
- Time
- 07:05 UTC
- Height
- at 35,000 ft
- Aircraft
- B739
- Turbulence
- none
- B38M at 29,000 ft, 41 nm southwest, 11:52 pm CDT (04:52 UTC): no turbulence from 23,000 ft to 29,000 ft. 409 nm along the route, 41 nm southwest of the line.
as filed, and in English
TIP UA /OV RBS/TM 0452/FL290/TP B38M/TB NEG 230-290
- Report
- a routine report filed through TIP
- Where
- over RBS
- Time
- 04:52 UTC
- Height
- at 29,000 ft
- Aircraft
- B38M
- Turbulence
- no from 23,000 ft to 29,000 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 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 8 forecast points nearest it (DLH, LSE, GRB, DBQ, JOT, IND, LOU, 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 | 270° at 15 kt | −6 kt | 126 kt | 6 h 01 min | 9:44 am EDT (13:44 UTC) | |
| 5,500 ft | 280° at 17 kt | −11 kt | 131 kt | 5 h 47 min | 9:30 am EDT (13:30 UTC) | |
| 7,500 ft | 290° at 17 kt | −13 kt | 12 °C | 133 kt | 5 h 42 min | 9:25 am EDT (13:25 UTC) |
| 9,500 ft | 300° at 15 kt | −13 kt | 9 °C | 133 kt | 5 h 42 min | 9:25 am EDT (13:25 UTC) |
| 11,500 ft | 300° at 14 kt | −11 kt | 5 °C | 131 kt | 5 h 47 min | 9:30 am EDT (13:30 UTC) |
| 13,500 ft | 290° at 16 kt | −13 kt | 1 °C | 133 kt | 5 h 42 min | 9:25 am EDT (13:25 UTC) |
| 15,500 ft | 290° at 20 kt | −16 kt | -3 °C | 136 kt | 5 h 34 min | 9:17 am EDT (13:17 UTC) |
| 17,500 ft | 290° at 23 kt | −19 kt | -7 °C | 139 kt | 5 h 27 min | 9:10 am EDT (13:10 UTC) |
| 18,000 ft FL180 | 290° at 24 kt | −19 kt | -8 °C | 139 kt | 5 h 27 min | 9:10 am EDT (13:10 UTC) |
| 24,000 ft FL240 | 300° at 28 kt | −24 kt | -20 °C | 144 kt | 5 h 16 min | 8:59 am EDT (12:59 UTC) |
| 30,000 ft FL300 | 300° at 36 kt | −32 kt | -34 °C | 152 kt | 4 h 59 min | 8:42 am EDT (12:42 UTC) |
| 34,000 ft FL340 | 300° at 47 kt | −41 kt | -43 °C | 161 kt | 4 h 42 min | 8:25 am EDT (12:25 UTC) |
| 39,000 ft FL390 | 300° at 53 kt | −44 kt | -51 °C | 164 kt | 4 h 37 min | 8:20 am EDT (12:20 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DLH | used from 0 nm out; 25 nm from the line | 080/28 | 240/21 15° | 250/26 9° | 250/32 3° | 260/42 -11° | 270/40 -21° | 260/43 -36° | 260/46 -46° | 260/65 -54° |
| LSE | used from 100 nm out; 76 nm from the line | 230/40 | 240/24 17° | 240/13 10° | 250/13 6° | 280/22 -9° | 250/28 -21° | 250/41 -34° | 260/42 -44° | 270/62 -53° |
| GRB | used from 199 nm out; 77 nm from the line | 250/36 | 270/23 16° | 270/14 9° | 240/18 4° | 280/26 -9° | 280/29 -20° | 290/42 -36° | 290/51 -45° | 290/72 -55° |
| DBQ | used from 249 nm out; 86 nm from the line | 230/33 | 250/30 16° | 280/15 9° | 260/15 5° | 260/21 -7° | 260/24 -20° | 250/37 -33° | 270/42 -43° | 280/63 -52° |
| JOT | used from 299 nm out; 41 nm from the line | 250/23 | 270/22 15° | 250/16 10° | 240/9 4° | 280/22 -7° | 280/29 -19° | 300/29 -34° | 290/50 -43° | 300/64 -52° |
| IND | used from 449 nm out; 28 nm from the line | 290/16 | 310/20 16° | 320/21 10° | 330/13 3° | 300/25 -7° | 320/32 -19° | 330/46 -34° | 320/61 -43° | 320/63 -50° |
| LOU | used from 548 nm out; 20 nm from the line | 310/18 | 340/28 16° | 340/29 10° | 350/27 3° | 330/27 -7° | 340/39 -19° | 330/58 -33° | 330/67 -41° | 330/40 -49° |
| TYS | used from 698 nm out; 35 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° |
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 |
|---|---|---|---|---|---|---|---|
| DLH Duluth, MN | departure | marginal VFR Sky: a broken layer at 1,300 feet | from the east (090°) at 12 knots | 10+ mi | 1,300 ft | 1,427 ft | 2:29 am CDT (07:29 UTC) |
| HYR Hayward, WI | 60 nm out, 2 nm north of the line | VFR | from the north-northeast (020°) at 5 knots | 10+ mi | none | 1,215 ft | 06:53 UTC |
| RCX Ladysmith, WI | 100 nm out, 5 nm northwest of the line | VFR | calm | 7 mi | none | 1,239 ft | 07:35 UTC |
| MFI Marshfield, WI | 159 nm out, 4 nm north of the line | VFR | from the south (190°) at 4 knots | 10+ mi | none | 1,277 ft | 06:54 UTC |
| MSN Madison, WI | 249 nm out, 11 nm southwest of the line, tower | VFR | from the south-southwest (200°) at 8 knots | 10+ mi | none | 886 ft | 06:53 UTC |
| DPA Chicago/West Chicago, IL | 339 nm out, 5 nm southwest of the line, tower | VFR | from the south (190°) at 4 knots | 10+ mi | none | 758 ft | 06:52 UTC |
| LAF Lafayette, IN | 449 nm out, 4 nm northeast of the line, tower | low IFR Weather: mist | calm | 0.75 mi | none | 605 ft | 07:36 UTC |
| IND Indianapolis, IN | 498 nm out, 10 nm northeast of the line, tower | marginal VFR Sky: a few clouds at 200 feet Weather: mist | calm | 3 mi | none | 796 ft | 07:11 UTC |
| LOU Louisville, KY | 588 nm out, 7 nm southwest of the line, tower | low IFR Sky: sky obscured at 200 feet Weather: fog | calm | 0.25 mi | 200 ft | 545 ft | 06:53 UTC |
| SME Somerset, KY | 678 nm out, 7 nm northeast of the line | low IFR Sky: overcast at 300 feet Weather: mist | calm | 4 mi | 300 ft | 927 ft | 07:35 UTC |
| JAU Jacksboro, TN | 728 nm out, 7 nm northeast of the line | marginal VFR Sky: a broken layer at 2,900 feet, overcast at 3,600 feet | calm | 10+ mi | 2,900 ft | 1,179 ft | 07:10 UTC |
| TYS Knoxville, TN | destination | VFR Sky: overcast at 3,100 feet | from the south-southwest (210°) at 4 knots | 10+ mi | 3,100 ft | 986 ft | 3:38 am EDT (07:38 UTC) |
The highest airport on this list sits at 1,427 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, 8:20 am EDT (12:20 UTC)
Wind from the southwest at 4 knots, visibility more than 6 miles, scattered clouds at 2,500 feet VFR
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 marginal 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 DLH, the departure
- From Mon 1:00 am CDT (06:00 UTC): wind from the east-northeast at 13 knots, visibility more than 6 miles, overcast at 9,000 feet
- From Mon 4:00 am CDT (09:00 UTC): wind from the east at 15 knots, gusting to 26, visibility more than 6 miles, overcast at 600 feet
- From Mon 7:00 am CDT (12:00 UTC): wind from the east at 16 knots, gusting to 26, visibility more than 6 miles, overcast at 200 feet
- From Mon 7:00 pm CDT (00:00 UTC): wind from the east-northeast at 16 knots, gusting to 27, visibility 2 miles, light rain showers, mist, overcast at 200 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 DLH 6:27 pm CDT (23:27 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: Duluth International, MC Ghee Tyson Airport.