Portsmouth International AT Pease to George Bush Intcntl/Houston Airport PSM → IAH
1,412 nautical miles (1,625 statute miles) southwest on a straight line, true course 244°, about 260° magnetic at the departure end (variation 16W). At 120 knots that is 12 h 17 min at the quickest height in today's winds (4,500 ft, a 5-knot headwind), arriving about 8:57 am CDT (13:57 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: 5 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
- SIGMET 2E: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 20 knots, until 10:55 pm EDT (02:55 UTC). Near the route, 378 nm along the route.
as issued
WSUS31 KKCI 120055 MKCE WST 120055 CONVECTIVE SIGMET 2E VALID UNTIL 0255Z CT NY NJ PA DE MD AND NJ NY CT CSTL WTRS FROM 30NE SAX-30SSW HTO-30ESE EMI-50WSW HAR-30NE SAX AREA EMBD TS MOV FROM 22020KT. TOPS TO FL310.
- SIGMET 3E: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the west at 15 knots, until 10:55 pm EDT (02:55 UTC). Over the route from 398 to 616 nm out.
as issued
WSUS31 KKCI 120055 MKCE WST 120055 CONVECTIVE SIGMET 3E VALID UNTIL 0255Z PA MD VA NC WV OH KY FROM 20NE APE-30SE JST-30SSE DCA-40SW ECG-70NNW HMV-20NE APE AREA TS MOV FROM 28015KT. TOPS TO FL310.
- 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 766 nm of the route.
- AIRMET ZULU 1C: moderate icing up to 22,000 ft. Over the first 119 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 457 nm of the route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 13,000 ft. Over the first 249 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 149 to 756 nm out.
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 PSM.
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 17 forecast points nearest it (BOS, BDL, ALB, AVP, PSB, AGC, EKN, CRW, TRI, TYS, BNA, HSV, MEM, 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 6 kt | +5 kt | 12 °C | 115 kt | 12 h 17 min | 8:57 am CDT (13:57 UTC) |
| 6,500 ft | 270° at 10 kt | +8 kt | 13 °C | 112 kt | 12 h 36 min | 9:16 am CDT (14:16 UTC) |
| 8,500 ft | 270° at 12 kt | +9 kt | 10 °C | 111 kt | 12 h 43 min | 9:23 am CDT (14:23 UTC) |
| 10,500 ft | 280° at 14 kt | +9 kt | 7 °C | 111 kt | 12 h 43 min | 9:23 am CDT (14:23 UTC) |
| 12,500 ft | 290° at 16 kt | +9 kt | 3 °C | 111 kt | 12 h 43 min | 9:23 am CDT (14:23 UTC) |
| 14,500 ft | 290° at 17 kt | +10 kt | -1 °C | 110 kt | 12 h 50 min | 9:30 am CDT (14:30 UTC) |
| 16,500 ft | 290° at 18 kt | +11 kt | -5 °C | 109 kt | 12 h 57 min | 9:37 am CDT (14:37 UTC) |
| 18,000 ft FL180 | 290° at 19 kt | +12 kt | -8 °C | 108 kt | 13 h 04 min | 9:44 am CDT (14:44 UTC) |
| 24,000 ft FL240 | 270° at 22 kt | +17 kt | -18 °C | 103 kt | 13 h 43 min | 10:23 am CDT (15:23 UTC) |
| 30,000 ft FL300 | 270° at 34 kt | +28 kt | -32 °C | 92 kt | 15 h 21 min | 12:01 pm CDT (17:01 UTC) |
| 34,000 ft FL340 | 270° at 39 kt | +32 kt | -40 °C | 88 kt | 16 h 03 min | 12:43 pm CDT (17:43 UTC) |
| 39,000 ft FL390 | 260° at 39 kt | +33 kt | -50 °C | 87 kt | 16 h 14 min | 12:54 pm CDT (17:54 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BOS | used from 0 nm out; 35 nm from the line | 160/27 | 190/23 9° | 260/20 7° | 260/32 1° | 250/48 -7° | 240/56 -17° | 240/59 -33° | 250/75 -43° | 250/94 -55° |
| BDL | used from 50 nm out; 39 nm from the line | 140/28 | 180/29 10° | 220/38 8° | 250/30 3° | 250/40 -8° | 240/46 -18° | 240/58 -32° | 240/80 -41° | 240/89 -55° |
| ALB | used from 149 nm out; 63 nm from the line | 160/27 | 190/16 9° | 200/29 7° | 230/21 3° | 240/24 -9° | 240/43 -19° | 230/65 -33° | 240/91 -42° | 230/99 -53° |
| AVP | used from 199 nm out; 19 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° |
| PSB | used from 298 nm out; 45 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° | |
| AGC | used from 398 nm out; 55 nm from the line | 140/12 | 350/10 12° | L/V 9° | L/V 3° | 200/11 -11° | 220/21 -22° | 220/47 -33° | 230/51 -39° | 230/45 -48° |
| EKN | used from 447 nm out; 24 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 497 nm out; 43 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 646 nm out; 81 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 696 nm out; 75 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° |
| BNA | used from 746 nm out; 74 nm from the line | 280/13 | 340/34 16° | 330/38 10° | 330/44 5° | 330/39 -8° | 330/38 -19° | 320/49 -34° | 330/53 -40° | 330/35 -47° |
| HSV | used from 895 nm out; 55 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 945 nm out; 76 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 1044 nm out; 77 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° |
| SHV | used from 1193 nm out; 74 nm from the line | 190/11 | 230/19 17° | 230/26 12° | 260/15 7° | 280/16 -4° | 300/17 -15° | 300/34 -30° | 300/31 -41° | 310/42 -52° |
| LCH | used from 1293 nm out; 64 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 1342 nm out; 58 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 |
|---|---|---|---|---|---|---|---|
| PSM Portsmouth, NH | departure | no report just now | 100 ft | ||||
| MHT Manchester, NH | 30 nm out, 4 nm north of the line, tower | no report just now | 266 ft | ||||
| AVP Wilkes-Barre/Scranton, PA | 239 nm out, 8 nm northwest of the line, tower | no report just now | 961 ft | ||||
| HMZ Bedford, PA | 388 nm out, 6 nm northwest of the line | no report just now | 1,161 ft | ||||
| CKB Clarksburg, WV | 477 nm out, 8 nm northwest of the line, tower | no report just now | 1,223 ft | ||||
| CRW Charleston, WV | 567 nm out, 6 nm southeast of the line, tower | no report just now | 947 ft | ||||
| MQY Smyrna, TN | 835 nm out, 10 nm northwest of the line, tower | no report just now | 543 ft | ||||
| MRC Columbia/Mount Pleasant, TN | 885 nm out, 7 nm north of the line | no report just now | 681 ft | ||||
| GWO Greenwood, MS | 1074 nm out, 7 nm southeast of the line, tower | no report just now | 162 ft | ||||
| MLU Monroe, LA | 1183 nm out, 8 nm northwest of the line, tower | no report just now | 78 ft | ||||
| JAS Jasper, TX | 1322 nm out, 4 nm south of the line | no report just now | 212 ft | ||||
| IAH Houston, TX | destination | no report just now | 95 ft |
The highest airport on this list sits at 1,223 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At IAH when you get there the forecast at the estimated arrival, 8:57 am CDT (13:57 UTC)
IAH has no terminal forecast; use the nearest airport that does.
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 PSM 6:05 pm EDT (22:05 UTC), at IAH 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: Portsmouth International AT Pease, George Bush Intcntl/Houston Airport.
