Huntsville Intl-Carl T Jones Field to MC Ghee Tyson Airport HSV → TYS
154 nautical miles (177 statute miles) northeast on a straight line, true course 062°, about 066° magnetic at the departure end (variation 4W). At 120 knots that is 1 h 12 min at the quickest height in today's winds (30,000 ft, a 8-knot tailwind), arriving about 3:46 am EDT (07:46 UTC), after sunset at the destination. Right now HSV is VFR, wind from the east (100°) at 3 knots; TYS is marginal VFR, wind from the south-southwest (210°) at 5 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: 4 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 whole route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 48 nm of the route.
- AIRMET TANGO 5W: moderate turbulence above 18,000 ft (due to mountain wave) from 29,000 ft to 40,000 ft. Near the route, 125 nm along 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 HSV.
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 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 2 forecast points nearest it (HSV, 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 | 320° at 20 kt | −5 kt | 125 kt | 1 h 14 min | 3:48 am EDT (07:48 UTC) | |
| 5,500 ft | 330° at 19 kt | −1 kt | 121 kt | 1 h 16 min | 3:50 am EDT (07:50 UTC) | |
| 7,500 ft | 330° at 24 kt | −1 kt | 12 °C | 121 kt | 1 h 16 min | 3:50 am EDT (07:50 UTC) |
| 9,500 ft | 330° at 28 kt | −1 kt | 9 °C | 121 kt | 1 h 16 min | 3:50 am EDT (07:50 UTC) |
| 11,500 ft | 340° at 28 kt | +3 kt | 6 °C | 117 kt | 1 h 19 min | 3:53 am EDT (07:53 UTC) |
| 13,500 ft | 340° at 28 kt | +2 kt | 2 °C | 118 kt | 1 h 18 min | 3:52 am EDT (07:52 UTC) |
| 15,500 ft | 330° at 28 kt | −1 kt | -2 °C | 121 kt | 1 h 16 min | 3:50 am EDT (07:50 UTC) |
| 17,500 ft | 330° at 28 kt | −3 kt | -6 °C | 123 kt | 1 h 15 min | 3:49 am EDT (07:49 UTC) |
| 18,000 ft FL180 | 320° at 28 kt | −4 kt | -7 °C | 124 kt | 1 h 15 min | 3:49 am EDT (07:49 UTC) |
| 24,000 ft FL240 | 340° at 33 kt | +2 kt | -18 °C | 118 kt | 1 h 18 min | 3:52 am EDT (07:52 UTC) |
| 30,000 ft FL300 | 320° at 50 kt | −8 kt | -33 °C | 128 kt | 1 h 12 min | 3:46 am EDT (07:46 UTC) |
| 34,000 ft FL340 | 330° at 58 kt | −2 kt | -40 °C | 122 kt | 1 h 16 min | 3:50 am EDT (07:50 UTC) |
| 39,000 ft FL390 | 340° at 42 kt | +3 kt | -49 °C | 117 kt | 1 h 19 min | 3:53 am EDT (07:53 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| HSV | used from 0 nm out; 24 nm from the line | 310/20 | 330/20 16° | 320/27 11° | 340/23 5° | 320/23 -7° | 340/30 -17° | 320/50 -33° | 330/61 -41° | 340/41 -50° |
| TYS | used from 96 nm out; 34 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 |
|---|---|---|---|---|---|---|---|
| HSV Huntsville, AL | departure | VFR | from the east (100°) at 3 knots | 10+ mi | none | 628 ft | 12:53 am CDT (05:53 UTC) |
| MDQ Huntsville, AL | 19 nm out, 8 nm northwest of the line | low IFR Sky: overcast at 100 feet Weather: fog | calm | 0.5 mi | 100 ft | 763 ft | 06:15 UTC |
| CHA Chattanooga, TN | 77 nm out, 15 nm southeast of the line, tower | VFR | calm | 10+ mi | none | 682 ft | 05:53 UTC |
| MNV Madisonville, TN | 125 nm out, 8 nm southeast of the line | marginal VFR Sky: overcast at 2,900 feet | calm | 10+ mi | 2,900 ft | 1,031 ft | 06:15 UTC |
| TYS Knoxville, TN | destination | marginal VFR Sky: overcast at 2,800 feet | from the south-southwest (210°) at 5 knots | 10+ mi | 2,800 ft | 986 ft | 2:01 am EDT (06:01 UTC) |
The highest airport on this list sits at 1,031 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, 3:46 am EDT (07:46 UTC)
Wind from the southwest at 4 knots, visibility more than 6 miles, overcast 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 HSV, the departure
- From Mon 1:00 am CDT (06:00 UTC): wind light and variable, visibility 6 miles, mist, clear skies
- At times between Mon 3:00 am CDT (08:00 UTC) and 7:00 am CDT (12:00 UTC): visibility 2 miles, mist, clear skies
- From Mon 10:00 am CDT (15:00 UTC): wind from the west at 5 knots, visibility more than 6 miles, clear skies
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 HSV 6:16 pm CDT (23:16 UTC), at TYS 7:04 pm EDT (23:04 UTC) (civil twilight ends 7:30 pm EDT (23:30 UTC)). At 120 knots the arrival at TYS is before sunrise there (7:39 am EDT (11:39 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: Huntsville Intl-Carl T Jones Field, MC Ghee Tyson Airport.