MC Ghee Tyson Airport to William P Hobby Airport TYS → HOU
679 nautical miles (781 statute miles) southwest on a straight line, true course 240°, about 246° magnetic at the departure end (variation 6W). At 120 knots that is 5 h 29 min at the quickest height in today's winds (39,000 ft, a 4-knot tailwind), arriving about 11:25 am CDT (16:25 UTC). Right now TYS is VFR, wind from the south-southwest (210°) at 5 knots; HOU is VFR, wind from the southeast (130°) 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: 113 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 90 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the first 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 TYS.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B38M at 35,000 ft, 35 nm southeast, 6:04 am EDT (10:04 UTC): light turbulence, remarks: ztlfd 39. 60 nm along the route, 35 nm southeast of the line.
as filed, and in English
ATL UA /OV GQO110025/TM 1004/FL350/TP B38M/TB LGT/RM ZTLFD 39
- Report
- a routine report filed through ATL
- Where
- 25 nm east (110°) of GQO
- Time
- 10:04 UTC
- Height
- at 35,000 ft
- Aircraft
- B38M
- Turbulence
- light
- Remarks
- ztlfd 39
- CRJ9 at 1,000 ft, 12 nm south, 6:15 am EDT (10:15 UTC): remarks: during the climb runway 20 departure. 70 nm along the route, 12 nm south of the line.
as filed, and in English
CHA UA /OV CHA/TM 1015/FL010/TP CRJ9/SK TOP010/RM DURC. RY 20 DEPARTURE
- Report
- a routine report filed through CHA
- Where
- over CHA
- Time
- 10:15 UTC
- Height
- at 1,000 ft
- Aircraft
- CRJ9
- Sky
- TOP010
- Remarks
- during the climb runway 20 departure
- SF30 at 21,000 ft, 17 nm northwest, 5:35 am EDT (09:35 UTC): light rime icing, -10 °C, remarks: zhu. At the destination end, 17 nm northwest of the line.
as filed, and in English
IAH UA /OV DAS02002/TM 0935/FL210/TP SF30/TA M10/IC LGT RIME/RM ZHU
- Report
- a routine report filed through IAH
- Where
- DAS02002
- Time
- 09:35 UTC
- Height
- at 21,000 ft
- Aircraft
- SF30
- Temperature
- −10 °C
- Icing
- light rime
- Remarks
- zhu
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 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 7 forecast points nearest it (TYS, HSV, BHM, JAN, SHV, LCH, HOU). 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 | 250° at 8 kt | +8 kt | 112 kt | 6 h 04 min | 12:00 pm CDT (17:00 UTC) | |
| 6,500 ft | 270° at 7 kt | +6 kt | 16 °C | 114 kt | 5 h 57 min | 11:53 am CDT (16:53 UTC) |
| 8,500 ft | 300° at 8 kt | +4 kt | 12 °C | 116 kt | 5 h 51 min | 11:47 am CDT (16:47 UTC) |
| 10,500 ft | 310° at 9 kt | +3 kt | 9 °C | 117 kt | 5 h 48 min | 11:44 am CDT (16:44 UTC) |
| 12,500 ft | 310° at 9 kt | +3 kt | 5 °C | 117 kt | 5 h 48 min | 11:44 am CDT (16:44 UTC) |
| 14,500 ft | 310° at 11 kt | +4 kt | 1 °C | 116 kt | 5 h 51 min | 11:47 am CDT (16:47 UTC) |
| 16,500 ft | 310° at 13 kt | +5 kt | -3 °C | 115 kt | 5 h 54 min | 11:50 am CDT (16:50 UTC) |
| 18,000 ft FL180 | 300° at 15 kt | +6 kt | -6 °C | 114 kt | 5 h 57 min | 11:53 am CDT (16:53 UTC) |
| 24,000 ft FL240 | 300° at 16 kt | +7 kt | -16 °C | 113 kt | 6 h 01 min | 11:57 am CDT (16:57 UTC) |
| 30,000 ft FL300 | 320° at 33 kt | +4 kt | -31 °C | 116 kt | 5 h 51 min | 11:47 am CDT (16:47 UTC) |
| 34,000 ft FL340 | 330° at 37 kt | +1 kt | -40 °C | 119 kt | 5 h 42 min | 11:38 am CDT (16:38 UTC) |
| 39,000 ft FL390 | 330° at 37 kt | −4 kt | -51 °C | 124 kt | 5 h 29 min | 11:25 am CDT (16:25 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| TYS | used from 0 nm out; 25 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° |
| HSV | used from 100 nm out; 30 nm from the line | 300/20 | 310/14 16° | 310/18 10° | 310/15 4° | 320/19 -5° | 290/16 -18° | 320/36 -32° | 320/47 -41° | 330/42 -50° |
| BHM | used from 200 nm out; 61 nm from the line | 310/19 | 310/15 16° | 320/19 11° | 330/15 5° | 330/23 -5° | 320/14 -18° | 320/36 -32° | 330/44 -40° | 340/36 -51° |
| JAN | used from 250 nm out; 95 nm from the line | 240/10 | 260/15 18° | 280/10 11° | 290/6 6° | 290/15 -5° | 300/15 -17° | 320/35 -30° | 330/38 -40° | 330/39 -51° |
| SHV | used from 449 nm out; 104 nm from the line | 210/20 | 210/20 18° | 230/20 11° | 240/16 7° | 270/17 -7° | 250/11 -15° | 300/34 -30° | 310/34 -40° | 320/36 -51° |
| LCH | used from 499 nm out; 64 nm from the line | 170/21 | 160/23 18° | 170/13 13° | 170/6 8° | 300/12 -7° | 280/16 -14° | 320/27 -30° | 330/23 -41° | 340/38 -51° |
| HOU | used from 599 nm out; 55 nm from the line | 180/22 | 180/20 16° | 170/7 15° | L/V 8° | 220/11 -6° | 260/15 -13° | 310/20 -30° | 320/20 -40° | 350/32 -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 |
|---|---|---|---|---|---|---|---|
| TYS Knoxville, TN | departure | VFR Sky: a few clouds at 3,300 feet | from the south-southwest (210°) at 5 knots | 10+ mi | none | 986 ft | 6:53 am EDT (10:53 UTC) |
| MNV Madisonville, TN | 20 nm out, 6 nm south of the line | low IFR Sky: sky obscured at 500 feet Weather: mist | calm | 0.75 mi | 500 ft | 1,031 ft | 10:35 UTC |
| CHA Chattanooga, TN | 70 nm out, 12 nm south of the line, tower | low IFR Sky: sky obscured at 200 feet Weather: fog | calm | 0.13 mi | 200 ft | 682 ft | 10:53 UTC |
| HSV Huntsville, AL | 150 nm out, 10 nm northwest of the line, tower | VFR | calm | 10+ mi | none | 628 ft | 09:53 UTC |
| GTR Columbus/W Point/Starkville, MS | 270 nm out, 4 nm southeast of the line, tower | VFR | calm | 10+ mi | none | 264 ft | 09:56 UTC |
| STF Starkville, MS | 280 nm out, 2 nm north of the line | VFR | calm | 10+ mi | none | 332 ft | 03:55 UTC |
| HKS Jackson, MS | 369 nm out, 16 nm south of the line, tower | VFR | calm | 10+ mi | none | 341 ft | 10:53 UTC |
| VKS Vicksburg, MS | 409 nm out, 3 nm northeast of the line | VFR | calm | 9 mi | none | 107 ft | 10:35 UTC |
| AEX Alexandria, LA | 509 nm out, 4 nm northeast of the line, tower | VFR | calm | 10+ mi | none | 88 ft | 10:53 UTC |
| DRI De Ridder, LA | 559 nm out, 3 nm northeast of the line | VFR | calm | 10+ mi | none | 201 ft | 10:35 UTC |
| BPT Beaumont/Port Arthur, TX | 619 nm out, 24 nm southeast of the line, tower | VFR | from the south-southeast (150°) at 7 knots | 10+ mi | none | 14 ft | 10:53 UTC |
| HOU Houston, TX | destination | VFR Sky: a few clouds at 3,300 feet, overcast at 23,000 feet | from the southeast (130°) at 6 knots | 10+ mi | 23,000 ft | 46 ft | 5:53 am CDT (10:53 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 HOU when you get there the forecast at the estimated arrival, 11:25 am CDT (16:25 UTC)
Wind from the southeast at 11 knots, visibility more than 6 miles, scattered clouds at 3,500 feet, a broken layer at 25,000 feet VFR
30% chance between Mon 11:00 am CDT (16:00 UTC) and 1:00 pm CDT (18:00 UTC): light rain showers
The whole forecast for HOU
- From Mon 4:00 am CDT (09:00 UTC): wind from the east-southeast at 5 knots, visibility more than 6 miles, scattered clouds at 2,500 feet, scattered clouds at 25,000 feet
- From Mon 11:00 am CDT (16:00 UTC): wind from the southeast at 11 knots, visibility more than 6 miles, scattered clouds at 3,500 feet, a broken layer at 25,000 feet
- 30% chance between Mon 11:00 am CDT (16:00 UTC) and 1:00 pm CDT (18:00 UTC): light rain showers
- From Mon 5:00 pm CDT (22:00 UTC): wind from the southeast at 13 knots, visibility more than 6 miles, overcast at 5,000 feet
- From Mon 7:00 pm CDT (00:00 UTC): wind from the southeast at 8 knots, visibility more than 6 miles, overcast at 5,000 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
No temporary flight restriction on or near this route right now.
Daylight
Sunset at TYS 7:04 pm EDT (23:04 UTC), at HOU 6:54 pm CDT (23:54 UTC) (civil twilight ends 7:18 pm CDT (00:18 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, William P Hobby Airport.