Tweed/New Haven Airport to William P Hobby Airport HVN → HOU
1,292 nautical miles (1,487 statute miles) southwest on a straight line, true course 244°, about 257° magnetic at the departure end (variation 13W). At 120 knots that is 11 h 26 min at the quickest height in today's winds (4,500 ft, a 7-knot headwind), arriving about 8:21 am CDT (13:21 UTC). Right now HVN is marginal VFR, wind from the north-northeast (030°) at 10 knots; HOU is VFR, wind from the southeast (140°) at 7 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: 180 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 666 nm of the route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 13,000 ft. Over the first 109 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the route from 99 to 338 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 249 to 656 nm out.
- AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 8,000 ft. Near the route, 457 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 HVN.
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 20:00–03:00 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 13 forecast points nearest it (JFK, AVP, ACY, PSB, EKN, CRW, TRI, TYS, HSV, MEM, JAN, 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 | 270° at 8 kt | +7 kt | 13 °C | 113 kt | 11 h 26 min | 8:21 am CDT (13:21 UTC) |
| 6,500 ft | 280° at 11 kt | +7 kt | 14 °C | 113 kt | 11 h 26 min | 8:21 am CDT (13:21 UTC) |
| 8,500 ft | 290° at 11 kt | +7 kt | 11 °C | 113 kt | 11 h 26 min | 8:21 am CDT (13:21 UTC) |
| 10,500 ft | 290° at 13 kt | +7 kt | 7 °C | 113 kt | 11 h 26 min | 8:21 am CDT (13:21 UTC) |
| 12,500 ft | 300° at 15 kt | +8 kt | 4 °C | 112 kt | 11 h 32 min | 8:27 am CDT (13:27 UTC) |
| 14,500 ft | 290° at 16 kt | +9 kt | 0 °C | 111 kt | 11 h 38 min | 8:33 am CDT (13:33 UTC) |
| 16,500 ft | 290° at 18 kt | +10 kt | -4 °C | 110 kt | 11 h 45 min | 8:40 am CDT (13:40 UTC) |
| 18,000 ft FL180 | 290° at 19 kt | +12 kt | -7 °C | 108 kt | 11 h 58 min | 8:53 am CDT (13:53 UTC) |
| 24,000 ft FL240 | 270° at 23 kt | +19 kt | -18 °C | 101 kt | 12 h 48 min | 9:43 am CDT (14:43 UTC) |
| 30,000 ft FL300 | 270° at 32 kt | +26 kt | -32 °C | 94 kt | 13 h 45 min | 10:40 am CDT (15:40 UTC) |
| 34,000 ft FL340 | 270° at 34 kt | +27 kt | -40 °C | 93 kt | 13 h 54 min | 10:49 am CDT (15:49 UTC) |
| 39,000 ft FL390 | 270° at 35 kt | +29 kt | -50 °C | 91 kt | 14 h 12 min | 11:07 am CDT (16:07 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| JFK | used from 0 nm out; 32 nm from the line | 140/43 | 170/35 13° | 230/18 9° | 250/25 5° | 240/40 -7° | 230/50 -17° | 230/75 -31° | 230/78 -41° | 230/88 -53° |
| AVP | used from 99 nm out; 62 nm from the line | 110/36 | 190/34 13° | 230/11 8° | 230/16 4° | 230/26 -8° | 220/40 -19° | 230/73 -33° | 230/98 -41° | 230/87 -51° |
| ACY | used from 149 nm out; 85 nm from the line | 230/15 | 230/22 15° | 230/31 11° | 230/27 6° | 230/40 -7° | 230/51 -17° | 230/71 -31° | 230/81 -41° | 230/86 -53° |
| PSB | used from 199 nm out; 88 nm from the line | 260/13 13° | 220/12 8° | 220/11 4° | 230/27 -11° | 210/31 -21° | 220/73 -32° | 220/75 -40° | 230/66 -50° | |
| EKN | used from 249 nm out; 80 nm from the line | 270/18 13° | 310/5 7° | 140/7 3° | 210/16 -9° | 220/41 -20° | 210/57 -32° | 220/57 -38° | 230/49 -47° | |
| CRW | used from 398 nm out; 40 nm from the line | 320/16 | 310/16 12° | 320/12 7° | 320/12 2° | 330/15 -11° | 280/11 -22° | 230/26 -30° | 240/33 -37° | 240/37 -47° |
| TRI | used from 497 nm out; 40 nm from the line | 310/28 11° | 320/32 7° | 330/30 2° | 300/28 -9° | 280/34 -21° | 250/37 -31° | 240/39 -38° | 250/35 -48° | |
| TYS | used from 547 nm out; 53 nm from the line | 290/19 | 310/22 11° | 330/25 7° | 330/34 3° | 320/37 -7° | 300/37 -18° | 300/37 -34° | 280/29 -39° | 270/29 -48° |
| HSV | used from 696 nm out; 49 nm from the line | 290/15 | 330/34 16° | 330/38 11° | 330/40 5° | 320/36 -7° | 320/31 -18° | 320/44 -34° | 330/53 -41° | 330/34 -48° |
| MEM | used from 845 nm out; 95 nm from the line | 240/9 | 280/14 17° | 280/20 12° | 290/25 5° | 320/25 -6° | 330/31 -18° | 320/52 -32° | 330/58 -41° | 320/42 -50° |
| JAN | used from 895 nm out; 72 nm from the line | 260/6 | 310/14 17° | 280/13 12° | 290/19 6° | 310/22 -5° | 310/28 -17° | 320/44 -32° | 330/48 -41° | 320/52 -51° |
| LCH | used from 1093 nm out; 84 nm from the line | 190/6 | 180/8 18° | 170/13 12° | 220/12 7° | 290/10 -4° | 280/15 -14° | 320/30 -31° | 320/32 -40° | 320/39 -53° |
| HOU | used from 1243 nm out; 25 nm from the line | 160/18 | 160/14 17° | 180/19 12° | 190/11 8° | 260/12 -4° | 260/14 -13° | 310/26 -30° | 310/30 -40° | 320/21 -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 |
|---|---|---|---|---|---|---|---|
| HVN New Haven, CT | departure | marginal VFR Sky: a broken layer at 1,200 feet, a broken layer at 1,600 feet, overcast at 2,700 feet Weather: rain, mist | from the north-northeast (030°) at 10 knots | 3 mi | 1,200 ft | 12 ft | 9:49 pm EDT (01:49 UTC) |
| TEB Teterboro, NJ | 60 nm out, 1 nm northeast of the line, tower | IFR Sky: overcast at 800 feet Weather: light rain, mist | from the north-northeast (030°) at 7 knots | 3 mi | 800 ft | 8 ft | 01:51 UTC |
| MRB Martinsburg, WV | 258 nm out, 7 nm northwest of the line, tower | IFR Sky: overcast at 500 feet Weather: light rain, mist | from the north-northwest (340°) at 5 knots | 1.75 mi | 500 ft | 564 ft | 01:45 UTC |
| OKV Winchester, VA | 268 nm out, 5 nm southwest of the line | low IFR Sky: overcast at 400 feet | calm | 7 mi | 400 ft | 726 ft | 23:35 UTC |
| LWB Lewisburg, WV | 408 nm out, 18 nm southeast of the line, tower | marginal VFR Sky: overcast at 1,200 feet Weather: light rain | calm | 3 mi | 1,200 ft | 2,301 ft | 22:51 UTC |
| JAU Jacksboro, TN | 606 nm out, 3 nm east of the line | marginal VFR Sky: a few clouds at 1,400 feet, a broken layer at 1,800 feet, overcast at 3,800 feet | calm | 10+ mi | 1,800 ft | 1,179 ft | 01:35 UTC |
| HSV Huntsville, AL | 765 nm out, 16 nm southeast of the line, tower | VFR | calm | 10+ mi | none | 628 ft | 00:53 UTC |
| TUP Tupelo, MS | 865 nm out, 22 nm northwest of the line, tower | VFR | calm | 10+ mi | none | 346 ft | 00:53 UTC |
| GWO Greenwood, MS | 944 nm out, 23 nm northwest of the line, tower | VFR | calm | 10+ mi | none | 162 ft | 00:53 UTC |
| AEX Alexandria, LA | 1123 nm out, 9 nm east of the line, tower | VFR | from the southeast (140°) at 5 knots | 10+ mi | none | 88 ft | 00:53 UTC |
| HPY Baytown, TX | 1272 nm out, 4 nm south of the line | no report just now | 33 ft | ||||
| HOU Houston, TX | destination | VFR Sky: scattered clouds at 25,000 feet | from the southeast (140°) at 7 knots | 10+ mi | none | 46 ft | 7:53 pm CDT (00:53 UTC) |
The highest airport on this list sits at 2,301 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, 8:21 am CDT (13:21 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 VFR
The whole forecast for HOU
- From Sun 7:00 pm CDT (00:00 UTC): wind from the southeast at 12 knots, visibility more than 6 miles, a few clouds at 25,000 feet
- From Sun 8:00 pm CDT (01:00 UTC): wind from the southeast at 7 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- 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
Temporary flight restrictions on the line or within 25 nm of it
- 5/2811 NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local 5 nm from the route, 60 nm along the route · security · until 20 October · ZNY
- 4/9383 WASHINGTON, DC., USA 13 nm from the route, 239 nm along the route · security · ZDC
- 6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 21 nm from the route, 239 nm along the route · a VIP movement · today · ZDC
Daylight
Sunset at HVN 6:15 pm EDT (22:15 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: Tweed/New Haven Airport, William P Hobby Airport.