Plan a flight · Mon 2:40 am EDT (06:40 UTC)

Portland International Jetport to William P Hobby Airport PWM → HOU

1,458 nautical miles (1,678 statute miles) southwest on a straight line, true course 243°, about 258° magnetic at the departure end (variation 15W). At 120 knots that is 12 h 28 min at the quickest height in today's winds (4,500 ft, a 3-knot headwind), arriving about 2:08 pm CDT (19:08 UTC). Right now PWM is marginal VFR, wind from the northeast (040°) 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: 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

SIGMET E22E: thunderstorms (a convective SIGMET) up to 40,000 ft, moving from the southwest at 20 knots, until 3:55 am EDT (07:55 UTC). Near the route, 439 nm along the route.

as issued

WSUS31 KKCI 120555
MKCE WST 120555
CONVECTIVE SIGMET 22E
VALID UNTIL 0755Z
NY NJ PA DE MD VA DC WV AND MA RI DE NJ NY CSTL WTRS
FROM 40E HTO-80SSW ACK-100ESE SIE-30SW CSN-40SSE JST-40E HTO
AREA EMBD TS MOV FROM 24020KT. TOPS TO FL400.

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 919 nm of the route.
AIRMET ZULU 1C: moderate icing up to 22,000 ft. Over the first 160 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 439 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 10,000 ft. Over the first 130 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 90 to 709 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 PWM.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

UAL330 at 35,000 ft, 9 nm southeast, 12:30 am EDT (04:30 UTC): moderate turbulence, wind 235° at 92 knots. 80 nm along the route, 9 nm southeast of the line.
as filed, and in English
```
ARP UAL330 4257N 07145W 0430 F350 235/092KT TB MOD TURB CONT MOD CHOP IC
```
Report
a routine report filed through ARP
B763 descending, 16 nm south, 2:21 am EDT (06:21 UTC): overcast above 40,000 ft. 60 nm along the route, 16 nm south of the line.
as filed, and in English
```
MHT UA /OV KMHT/TM 0621/FLDURD/TP B763/SK OVC004
```
Report
a routine report filed through MHT
Where
over KMHT
Time
06:21 UTC
Height
during the descent
Aircraft
B763
Sky
overcast from 400 ft
B763 descending, 16 nm south, 1:55 am EDT (05:55 UTC): a routine report with nothing remarked on. 60 nm along the route, 16 nm south of the line.
as filed, and in English
```
MHT UA /OV RWY 35/TM 0555/FLDURD/TP B763/SK 004-005 FT
```
Report
a routine report filed through MHT
Where
runway 35
Time
05:55 UTC
Height
during the descent
Aircraft
B763
Sky
from 400 ft to 500 ft ft
CRJ7 descending, 16 nm south, 12:09 am EDT (04:09 UTC): a routine report with nothing remarked on. 60 nm along the route, 16 nm south of the line.
as filed, and in English
```
MHT UA /OV RWY 6/TM 0409/FLDURD/TP CRJ7/SK 006
```
Report
a routine report filed through MHT
Where
runway 6
Time
04:09 UTC
Height
during the descent
Aircraft
CRJ7
Sky
at 600 ft
GA6C descending, 33 nm southeast, 12:32 am EDT (04:32 UTC): overcast above 1,000 ft, remarks: bases OVC010. 210 nm along the route, 33 nm southeast of the line.
as filed, and in English
```
SWF UA /OV SWF 270005/TM 0432/FLDURD/TP GA6C/SK OVC010/RM BASES OVC010
```
Report
a routine report filed through SWF
Where
5 nm west (270°) of SWF
Time
04:32 UTC
Height
during the descent
Aircraft
GA6C
Sky
overcast from 1,000 ft
Remarks
bases OVC010

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 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 (PWM, BOS, 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	300° at 7 kt	+3 kt	12 °C	117 kt	12 h 28 min	2:08 pm CDT (19:08 UTC)
6,500 ft	300° at 10 kt	+4 kt	13 °C	116 kt	12 h 34 min	2:14 pm CDT (19:14 UTC)
8,500 ft	300° at 13 kt	+5 kt	10 °C	115 kt	12 h 41 min	2:21 pm CDT (19:21 UTC)
10,500 ft	300° at 13 kt	+5 kt	7 °C	115 kt	12 h 41 min	2:21 pm CDT (19:21 UTC)
12,500 ft	310° at 14 kt	+4 kt	3 °C	116 kt	12 h 34 min	2:14 pm CDT (19:14 UTC)
14,500 ft	300° at 16 kt	+6 kt	-1 °C	114 kt	12 h 47 min	2:27 pm CDT (19:27 UTC)
16,500 ft	300° at 18 kt	+8 kt	-5 °C	112 kt	13 h 01 min	2:41 pm CDT (19:41 UTC)
18,000 ft FL180	300° at 19 kt	+9 kt	-8 °C	111 kt	13 h 08 min	2:48 pm CDT (19:48 UTC)
24,000 ft FL240	290° at 22 kt	+12 kt	-19 °C	108 kt	13 h 30 min	3:10 pm CDT (20:10 UTC)
30,000 ft FL300	290° at 33 kt	+17 kt	-33 °C	103 kt	14 h 09 min	3:49 pm CDT (20:49 UTC)
34,000 ft FL340	290° at 38 kt	+22 kt	-40 °C	98 kt	14 h 53 min	4:33 pm CDT (21:33 UTC)
39,000 ft FL390	290° at 35 kt	+19 kt	-50 °C	101 kt	14 h 26 min	4:06 pm CDT (21:06 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
PWM	used from 0 nm out; 25 nm from the line	180/9	280/28 9°	230/30 6°	250/22 0°	240/45 -9°	230/63 -20°	230/72 -34°	240/87 -43°	240/94 -54°
BOS	used from 50 nm out; 56 nm from the line	110/20	200/26 12°	280/24 8°	260/29 3°	250/47 -10°	230/59 -19°	230/74 -33°	240/95 -41°	240/96 -53°
ALB	used from 100 nm out; 43 nm from the line	120/9	270/8 10°	L/V 5°	260/9 1°	260/34 -10°	250/42 -22°	240/57 -35°	240/70 -42°	240/65 -50°
AVP	used from 200 nm out; 52 nm from the line	150/5	350/13 12°	270/20 8°	260/17 4°	260/25 -11°	240/31 -22°	240/54 -35°	230/61 -41°	240/55 -49°
PSB	used from 350 nm out; 27 nm from the line		360/13 13°	330/14 7°	300/11 3°	290/12 -11°	240/23 -23°	270/25 -36°	250/34 -40°	250/45 -48°
AGC	used from 449 nm out; 45 nm from the line	350/14	330/20 11°	340/18 8°	330/17 3°	340/22 -11°	340/31 -22°	330/33 -36°	300/34 -41°	300/35 -47°
EKN	used from 499 nm out; 32 nm from the line		330/21 12°	330/25 7°	350/22 2°	330/24 -10°	310/27 -21°	320/33 -35°	290/31 -39°	290/34 -47°
CRW	used from 549 nm out; 28 nm from the line	330/20	330/23 11°	340/25 8°	340/21 2°	340/33 -9°	340/41 -20°	330/42 -35°	320/44 -39°	320/43 -47°
TRI	used from 699 nm out; 87 nm from the line		330/22 11°	330/29 7°	330/32 3°	330/36 -8°	320/34 -19°	320/36 -34°	320/43 -39°	320/46 -47°
TYS	used from 749 nm out; 72 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°
BNA	used from 799 nm out; 57 nm from the line	310/20	340/20 17°	330/24 10°	340/22 5°	330/26 -6°	340/29 -18°	330/52 -33°	320/62 -41°	340/45 -50°
HSV	used from 899 nm out; 48 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°
MEM	used from 999 nm out; 73 nm from the line	230/19	260/16 15°	270/17 12°	300/13 6°	300/15 -5°	300/26 -18°	300/34 -32°	300/41 -40°	310/46 -52°
JAN	used from 1099 nm out; 60 nm from the line	230/10	270/13 18°	270/11 12°	310/11 6°	300/15 -4°	300/22 -16°	310/33 -31°	320/37 -41°	330/41 -52°
SHV	used from 1248 nm out; 78 nm from the line	200/18	230/24 18°	230/24 12°	240/14 8°	260/12 -4°	240/11 -15°	300/31 -29°	300/32 -40°	300/36 -52°
LCH	used from 1298 nm out; 61 nm from the line	160/21	160/18 18°	180/13 12°	230/6 8°	280/10 -4°	260/13 -14°	310/29 -30°	320/32 -40°	330/33 -53°
HOU	used from 1398 nm out; 35 nm from the line	160/22	150/27 19°	180/16 14°	250/7 9°	270/10 -5°	270/16 -13°	310/23 -29°	310/26 -40°	330/20 -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
PWM Portland, ME	departure	marginal VFR Sky: overcast at 2,000 feet Weather: light rain	from the northeast (040°) at 5 knots	9 mi	2,000 ft	75 ft	1:51 am EDT (05:51 UTC)
MHT Manchester, NH	60 nm out, 16 nm south of the line, tower	marginal VFR Sky: scattered clouds at 400 feet, overcast at 1,200 feet Weather: light rain, mist	from the north (360°) at 4 knots	5 mi	1,200 ft	266 ft	05:53 UTC
AVP Wilkes-Barre/Scranton, PA	280 nm out, 7 nm southeast of the line, tower	marginal VFR Sky: overcast at 1,400 feet	calm	10+ mi	1,400 ft	961 ft	05:54 UTC
JST Johnstown, PA	429 nm out, 15 nm northwest of the line, tower	low IFR Sky: sky obscured at 200 feet Weather: light rain, mist	from the northwest (310°) at 5 knots	0.75 mi	200 ft	2,284 ft	06:25 UTC
CKB Clarksburg, WV	519 nm out, 3 nm east of the line, tower	IFR Sky: overcast at 600 feet	calm	10+ mi	600 ft	1,223 ft	06:26 UTC
CRW Charleston, WV	599 nm out, 11 nm southeast of the line, tower	IFR Sky: overcast at 500 feet Weather: light rain, mist	from the west-northwest (290°) at 5 knots	1 mi	500 ft	947 ft	05:54 UTC
EKQ Monticello, KY	779 nm out, 4 nm northwest of the line	low IFR Sky: a broken layer at 300 feet, a broken layer at 2,000 feet Weather: fog	calm	0.5 mi	300 ft	962 ft	06:25 UTC
MQY Smyrna, TN	879 nm out, 12 nm north of the line, tower	low IFR Sky: a broken layer at 200 feet Weather: fog	calm	0.25 mi	200 ft	543 ft	06:33 UTC
GWO Greenwood, MS	1108 nm out, 3 nm north of the line, tower	VFR	calm	10+ mi	none	162 ft	05:53 UTC
AEX Alexandria, LA	1288 nm out, 18 nm southeast of the line, tower	VFR	calm	10+ mi	none	88 ft	05:53 UTC
HPY Baytown, TX	1438 nm out, 5 nm southeast of the line	no report just now				33 ft
HOU Houston, TX	destination	VFR Sky: a few clouds at 3,000 feet, a broken layer at 22,000 feet	from the southeast (130°) at 6 knots	10+ mi	22,000 ft	46 ft	12:53 am CDT (05:53 UTC)

The highest airport on this list sits at 2,284 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, 2:08 pm CDT (19:08 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

The whole forecast for HOU

From Mon 1:00 am CDT (06:00 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
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 PWM, the departure

From Mon 2:00 am EDT (06:00 UTC): wind from the north-northeast at 3 knots, visibility 4 miles, light rain, overcast at 2,500 feet
From Mon 7:00 am EDT (11:00 UTC): wind from the west-northwest at 3 knots, visibility 6 miles, mist, overcast at 1,500 feet
From Mon 10:30 am EDT (14:30 UTC): wind from the west-northwest at 7 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 10:00 pm EDT (02:00 UTC): wind from the north-northeast at 12 knots, gusting to 22, visibility 6 miles, mist, a broken layer at 2,500 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 PWM 6:03 pm EDT (22:03 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

Radar now, the Northeast · loop National Weather Service

Radar now, the central Great Lakes · loop National Weather Service

Radar now, the lower Mississippi valley · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

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: Portland International Jetport, William P Hobby Airport.