Plan a flight · Sun 9:40 pm EDT (01:40 UTC)

Greenville Spartanburg International to Portsmouth International AT Pease GSP → PSM

723 nautical miles (832 statute miles) northeast on a straight line, true course 044°, about 050° magnetic at the departure end (variation 6W). At 120 knots that is 3 h 41 min at the quickest height in today's winds (39,000 ft, a 76-knot tailwind), arriving about 1:21 am EDT (05:21 UTC), after sunset at the destination. Right now GSP is VFR, wind from the west-southwest (240°) at 8 knots; PSM is marginal VFR, wind calm. 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: 3 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 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 158 to 337 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.

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). Over the route from 386 to 545 nm out.

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.

AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 8,000 ft. Over the first 178 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 129 to 198 nm out.
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 last 505 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 426 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 13,000 ft. Over the last 248 nm of the route.
AIRMET ZULU 1C: moderate icing up to 22,000 ft. Over the last 89 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 GSP.

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

urgent CL60 at 800 ft, 10 nm southeast, 6:44 pm EDT (22:44 UTC): moderate chop turbulence, remarks: low-level wind shear +10/-10 during the descent onf runway 16. 545 nm along the route, 10 nm southeast of the line.
as filed, and in English
```
HPN UUA /OV HPN/TM 2244/FL008/TP CL60/TB MOD CHOP/RM LLWS +10/-10 DURD ONF RWY16
```
Report
an urgent report filed through HPN
Where
over HPN
Time
22:44 UTC
Height
at 800 ft
Aircraft
CL60
Turbulence
moderate chop
Remarks
low-level wind shear +10/-10 during the descent onf runway 16
urgent PC12 at 11,000 ft, 31 nm southeast, 7:29 pm EDT (23:29 UTC): moderate turbulence, remarks: during the descent on wipor arrival. 624 nm along the route, 31 nm southeast of the line.
as filed, and in English
```
IJD UUA /OV ORW340007/TM 2329/FL110/TP PC12/TB MOD 110-100 SEV 100-080/RM DURD ON WIPOR ARR
```
Report
an urgent report filed through IJD
Where
7 nm north (340°) of ORW
Time
23:29 UTC
Height
at 11,000 ft
Aircraft
PC12
Turbulence
moderate from 11,000 ft to 10,000 ft severe from 10,000 ft to 8,000 ft
Remarks
during the descent on wipor arrival
BCS3 at 19,000 ft, 38 nm southeast, 8:18 pm EDT (00:18 UTC): moderate turbulence above 17,000 ft, -9 °C. 416 nm along the route, 38 nm southeast of the line.
as filed, and in English
```
DOV UA /OV ENO/TM 0018/FL190/TP BCS3/TA M09/TB MOD 170
```
Report
a routine report filed through DOV
Where
over ENO
Time
00:18 UTC
Height
at 19,000 ft
Aircraft
BCS3
Temperature
−9 °C
Turbulence
moderate at 17,000 ft
E145 at 12,000 ft, 27 nm northwest, 8:43 pm EDT (00:43 UTC): moderate turbulence. 426 nm along the route, 27 nm northwest of the line.
as filed, and in English
```
LNS UA /OV LRP/TM 0043/FL120/TP E145/TB CONS MOD
```
Report
a routine report filed through LNS
Where
over LRP
Time
00:43 UTC
Height
at 12,000 ft
Aircraft
E145
Turbulence
continuous moderate
E75L at 20,000 ft, 15 nm southeast, 8:41 pm EDT (00:41 UTC): moderate turbulence above 20,000 ft. 426 nm along the route, 15 nm southeast of the line.
as filed, and in English
```
ILG UA /OV DQO/TM 0041/FL200/TP E75L/TB MOD 200
```
Report
a routine report filed through ILG
Where
over DQO
Time
00:41 UTC
Height
at 20,000 ft
Aircraft
E75L
Turbulence
moderate at 20,000 ft
A21N at 18,000 ft, 9 nm north, 8:38 pm EDT (00:38 UTC): moderate clear-air turbulence. 446 nm along the route, 9 nm north of the line.
as filed, and in English
```
PTW UA /OV PTW/TM 0038/FL180/TP A21N/TB MOD CAT
```
Report
a routine report filed through PTW
Where
over PTW
Time
00:38 UTC
Height
at 18,000 ft
Aircraft
A21N
Turbulence
moderate clear-air turbulence
CRJ7 at 15,000 ft, 31 nm southeast, 8:07 pm EDT (00:07 UTC): moderate chop turbulence. 505 nm along the route, 31 nm southeast of the line.
as filed, and in English
```
BLM UA /OV COL/TM 0007/FL150/TP CRJ7/TB MOD CHOP
```
Report
a routine report filed through BLM
Where
over COL
Time
00:07 UTC
Height
at 15,000 ft
Aircraft
CRJ7
Turbulence
moderate chop
B38M at 6,000 ft, 13 nm southeast, 8:47 pm EDT (00:47 UTC): moderate turbulence. 515 nm along the route, 13 nm southeast of the line.
as filed, and in English
```
EWR UA /OV 2 NW OF EWR/TM 0047/FL60/TP B38M/TB MODERATE
```
Report
a routine report filed through EWR
Where
2 northwest of ewr
Time
00:47 UTC
Height
at 6,000 ft
Aircraft
B38M
Turbulence
moderate
A333 at 3,000 ft, 50 nm southeast, 7:10 pm EDT (23:10 UTC): moderate turbulence. 515 nm along the route, 50 nm southeast of the line.
as filed, and in English
```
JFK UA /OV JFK180025/TM 2310/FL030/TP A333/TB MOD TURB
```
Report
a routine report filed through JFK
Where
25 nm south (180°) of JFK
Time
23:10 UTC
Height
at 3,000 ft
Aircraft
A333
Turbulence
moderate turbulence
A32N , 28 nm southeast, 7:01 pm EDT (23:01 UTC): moderate turbulence. 525 nm along the route, 28 nm southeast of the line.
as filed, and in English
```
JFK UA /OV JFK10008/TM 2301/FL3000/TP A32N/TB MOD TURB
```
Report
a routine report filed through JFK
Where
JFK10008
Time
23:01 UTC
Height
at 300,000 ft
Aircraft
A32N
Turbulence
moderate turbulence
TBM9 descending, 40 nm southeast, 7:45 pm EDT (23:45 UTC): moderate turbulence, a broken layer above 700 ft. 554 nm along the route, 40 nm southeast of the line.
as filed, and in English
```
ISP UA /OV ISP/TM 2345/FLDURD/TP TBM9/SK BKN007/TB MOD
```
Report
a routine report filed through ISP
Where
over ISP
Time
23:45 UTC
Height
during the descent
Aircraft
TBM9
Sky
a broken layer from 700 ft
Turbulence
moderate
TBM9 descending, 40 nm southeast, 6:55 pm EDT (22:55 UTC): moderate turbulence, a broken layer above 700 ft. 554 nm along the route, 40 nm southeast of the line.
as filed, and in English
```
ISP UA /OV ISP/TM 2255/FLDURD/TP TBM9/SK BKN007/TB MOD
```
Report
a routine report filed through ISP
Where
over ISP
Time
22:55 UTC
Height
during the descent
Aircraft
TBM9
Sky
a broken layer from 700 ft
Turbulence
moderate
BCS3 at 4,000 ft, 32 nm southeast, 8:42 pm EDT (00:42 UTC): moderate turbulence, imc. 564 nm along the route, 32 nm southeast of the line.
as filed, and in English
```
BDR UA /OV BDR180010/TM 0042/FL040/TP BCS3/WX IMC/TB MOD
```
Report
a routine report filed through BDR
Where
10 nm south (180°) of BDR
Time
00:42 UTC
Height
at 4,000 ft
Aircraft
BCS3
Weather
instrument conditions
Turbulence
moderate
E75S at 10,000 ft, 33 nm northwest, 7:53 pm EDT (23:53 UTC): moderate clear-air turbulence. 584 nm along the route, 33 nm northwest of the line.
as filed, and in English
```
POU UA /OV PWL350015/TM 2353/FL100/TP E75S/TB MOD CAT
```
Report
a routine report filed through POU
Where
15 nm north (350°) of PWL
Time
23:53 UTC
Height
at 10,000 ft
Aircraft
E75S
Turbulence
moderate clear-air turbulence

16 more routine reports are on the map.

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 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 8 forecast points nearest it (GSP, TRI, ROA, RIC, ACY, JFK, BDL, BOS). 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	190° at 15 kt	−11 kt		131 kt	5 h 31 min	3:11 am EDT (07:11 UTC)
5,500 ft	220° at 15 kt	−14 kt	11 °C	134 kt	5 h 24 min	3:04 am EDT (07:04 UTC)
7,500 ft	230° at 18 kt	−18 kt	11 °C	138 kt	5 h 14 min	2:54 am EDT (06:54 UTC)
9,500 ft	240° at 21 kt	−20 kt	8 °C	140 kt	5 h 10 min	2:50 am EDT (06:50 UTC)
11,500 ft	240° at 21 kt	−20 kt	5 °C	140 kt	5 h 10 min	2:50 am EDT (06:50 UTC)
13,500 ft	240° at 25 kt	−24 kt	1 °C	144 kt	5 h 01 min	2:41 am EDT (06:41 UTC)
15,500 ft	240° at 30 kt	−29 kt	-2 °C	149 kt	4 h 51 min	2:31 am EDT (06:31 UTC)
17,500 ft	240° at 34 kt	−34 kt	-6 °C	154 kt	4 h 42 min	2:22 am EDT (06:22 UTC)
18,000 ft FL180	240° at 36 kt	−35 kt	-7 °C	155 kt	4 h 40 min	2:20 am EDT (06:20 UTC)
24,000 ft FL240	230° at 49 kt	−49 kt	-18 °C	169 kt	4 h 17 min	1:57 am EDT (05:57 UTC)
30,000 ft FL300	230° at 66 kt	−66 kt	-31 °C	186 kt	3 h 53 min	1:33 am EDT (05:33 UTC)
34,000 ft FL340	230° at 75 kt	−75 kt	-40 °C	195 kt	3 h 42 min	1:22 am EDT (05:22 UTC)
39,000 ft FL390	230° at 76 kt	−76 kt	-52 °C	196 kt	3 h 41 min	1:21 am EDT (05:21 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
GSP	used from 0 nm out; 25 nm from the line	300/22	310/22 11°	300/22 7°	290/28 5°	270/36 -5°	250/42 -18°	230/54 -31°	230/59 -40°	230/65 -50°
TRI	used from 50 nm out; 73 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°
ROA	used from 99 nm out; 62 nm from the line	280/9	290/15 12°	290/11 8°	210/6 3°	210/30 -6°	220/46 -19°	210/74 -30°	220/78 -39°	220/64 -48°
RIC	used from 248 nm out; 56 nm from the line	190/33	200/29 14°	210/31 12°	210/38 6°	230/42 -7°	230/68 -16°	220/84 -29°	220/86 -40°	220/81 -52°
ACY	used from 347 nm out; 99 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°
JFK	used from 495 nm out; 28 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°
BDL	used from 545 nm out; 46 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°
BOS	used from 644 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°

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
GSP Greer, SC	departure	VFR	from the west-southwest (240°) at 8 knots	10+ mi	none	963 ft	8:53 pm EDT (00:53 UTC)
HKY Hickory, NC	69 nm out, 8 nm west of the line, tower	VFR	from the southwest (220°) at 6 knots	10+ mi	none	1,189 ft	00:53 UTC
INT Winston Salem, NC	119 nm out, 18 nm southeast of the line, tower	VFR Sky: overcast at 9,000 feet	from the southwest (230°) at 6 knots	10+ mi	9,000 ft	969 ft	00:54 UTC
LYH Lynchburg, VA	208 nm out, 2 nm south of the line, tower	low IFR Sky: overcast at 400 feet	calm	10+ mi	400 ft	938 ft	00:54 UTC
CHO Charlottesville, VA	267 nm out, 9 nm northwest of the line, tower	IFR Sky: a broken layer at 500 feet, a broken layer at 1,100 feet, overcast at 1,600 feet	from the south (190°) at 3 knots	7 mi	500 ft	640 ft	01:28 UTC
HEF Washington, DC	327 nm out, 6 nm west of the line, tower	IFR Sky: overcast at 500 feet Weather: light rain	from the north (350°) at 7 knots	3 mi	500 ft	192 ft	00:56 UTC
BWI Baltimore, MD	366 nm out, 5 nm east of the line, tower	low IFR Sky: overcast at 400 feet Weather: light drizzle, mist	from the northeast (050°) at 7 knots	3 mi	400 ft	143 ft	01:20 UTC
TTN Trenton, NJ	475 nm out, 13 nm southeast of the line, tower	IFR Sky: overcast at 800 feet Weather: light rain, mist	from the northeast (040°) at 8 knots	5 mi	800 ft	212 ft	00:53 UTC
MMU Morristown, NJ	515 nm out, 3 nm southwest of the line, tower	IFR Sky: overcast at 600 feet Weather: heavy rain	from the north-northeast (030°) at 6 knots	4 mi	600 ft	186 ft	00:45 UTC
BDL Windsor Locks, CT	614 nm out, 2 nm northeast of the line, tower	IFR Sky: scattered clouds at 800 feet, a broken layer at 2,400 feet, overcast at 2,800 feet Weather: light rain, mist	from the north (010°) at 10 knots	2 mi	2,400 ft	173 ft	01:25 UTC
ASH Nashua, NH	683 nm out, 7 nm north of the line, tower	IFR Sky: a broken layer at 800 feet, a broken layer at 1,700 feet, overcast at 3,000 feet Weather: rain, mist	from the northeast (050°) at 3 knots	6 mi	800 ft	200 ft	01:31 UTC
PSM Portsmouth, NH	destination	marginal VFR Sky: a broken layer at 2,900 feet, overcast at 8,500 feet Weather: light rain	calm	7 mi	2,900 ft	100 ft	8:55 pm EDT (00:55 UTC)

The highest airport on this list sits at 1,189 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At PSM when you get there the forecast at the estimated arrival, 1:21 am EDT (05:21 UTC)

Wind light and variable, visibility 3 miles, light rain, overcast at 500 feet IFR

The whole forecast for PSM

From Sun 8:00 pm EDT (00:00 UTC): wind calm, visibility more than 6 miles, light rain, a broken layer at 9,000 feet, overcast at 20,000 feet
From Sun 10:00 pm EDT (02:00 UTC): wind light and variable, visibility 5 miles, light rain, mist, overcast at 900 feet
From Mon 12:00 am EDT (04:00 UTC): wind light and variable, visibility 3 miles, light rain, overcast at 500 feet
From Mon 9:00 am EDT (13:00 UTC): wind from the northwest at 6 knots, visibility more than 6 miles, a broken layer at 2,500 feet, overcast at 6,000 feet
From Mon 12:00 pm EDT (16:00 UTC): wind from the west-northwest at 5 knots, visibility more than 6 miles, a broken layer at 25,000 feet

The forecast for GSP, the departure

From Sun 8:00 pm EDT (00:00 UTC): wind from the west-southwest at 9 knots, visibility more than 6 miles, scattered clouds at 7,000 feet
From Mon 2:00 am EDT (06:00 UTC): wind from the west-southwest at 5 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 12:00 pm EDT (16:00 UTC): wind from the north-northwest at 9 knots, visibility more than 6 miles, a few clouds at 25,000 feet

Temporary flight restrictions on the line or within 25 nm of it

4/9383 WASHINGTON, DC., USA on the route, 337 nm along the route · security · ZDC
6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 8 nm from the route, 347 nm along the route · a VIP movement · today · ZDC
6/8800 Baltimore, MD, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC on the route, 376 nm along the route · drones kept away from a public gathering · starts Saturday 17 October · ZDC
5/2811 NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local 15 nm from the route, 525 nm along the route · security · until 20 October · ZNY

Daylight

Sunset at GSP 6:58 pm EDT (22:58 UTC), at PSM 6:05 pm EDT (22:05 UTC) (civil twilight ends 6:34 pm EDT (22:34 UTC)). At 120 knots the arrival at PSM is before sunrise there (6:52 am EDT (10:52 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 Southeast · loop National Weather Service

Radar now, the Northeast · 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: Greenville Spartanburg International, Portsmouth International AT Pease.