Plan a flight · Mon 3:05 am EDT (07:05 UTC)

Piedmont Triad International to Tweed/New Haven Airport GSO → HVN

453 nautical miles (521 statute miles) northeast on a straight line, true course 045°, about 053° magnetic at the departure end (variation 8W). At 120 knots that is 2 h 13 min at the quickest height in today's winds (34,000 ft, a 85-knot tailwind), arriving about 5:18 am EDT (09:18 UTC), after sunset at the destination. Right now GSO is VFR, wind from the west-southwest (240°) at 6 knots; HVN is marginal VFR, wind from the north (010°) at 11 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

AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 10,000 ft. Over the first 79 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 384 nm of the route.
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 364 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 10,000 ft. Near the route, at the destination end.

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 GSO.

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

C560 at 13,000 ft, 28 nm northwest, 2:38 am EDT (06:38 UTC): moderate turbulence, overcast above 19,000 ft, heavy rain, remarks: during the descent. 315 nm along the route, 28 nm northwest of the line.
as filed, and in English
```
PHL UA /OV 20 NW PHL/TM 0638/FL130 /TP C560/SK OVC190/WX +RA/TB MOD/RM DURD
```
Report
a routine report filed through PHL
Where
20 northwest phl
Time
06:38 UTC
Height
at 13,000 ft
Aircraft
C560
Sky
overcast from 19,000 ft
Weather
heavy rain
Turbulence
moderate
Remarks
during the descent
A334 at 18,000 ft, 1 nm northwest, 12:06 am EDT (04:06 UTC): moderate rime icing from 18,000 ft to 22,000 ft, -18 °C. At the destination end, 1 nm northwest of the line.
as filed, and in English
```
HVN UA /OV MAD270010/TM 0406/FL180/TP A334/TA M18/IC MOD RIME 180-220
```
Report
a routine report filed through HVN
Where
10 nm west (270°) of MAD
Time
04:06 UTC
Height
at 18,000 ft
Aircraft
A334
Temperature
−18 °C
Icing
moderate rime from 18,000 ft to 22,000 ft
E145 at 800 ft, 27 nm southeast, 2:07 am EDT (06:07 UTC): a routine report with nothing remarked on. 148 nm along the route, 27 nm southeast of the line.
as filed, and in English
```
RIC UA /OV RIC340001/TM 0607/FL008/TP E145
```
Report
a routine report filed through RIC
Where
1 nm north (340°) of RIC
Time
06:07 UTC
Height
at 800 ft
Aircraft
E145
B763 at 800 ft, 4 nm east, 1:51 am EDT (05:51 UTC): a broken layer, remarks: bases at at 80,000 ft and tops 1500. 394 nm along the route, 4 nm east of the line.
as filed, and in English
```
JFK UA /OV JFK 2 MILES SOUTHEAST/TM 0551/FL008/TP B763/SK BKN/RM BASES AT 800 AND TOPS 1500
```
Report
a routine report filed through JFK
Where
jfk 2 miles southeast
Time
05:51 UTC
Height
at 800 ft
Aircraft
B763
Sky
a broken layer
Remarks
bases at at 80,000 ft and tops 1500
GA6C descending, 49 nm northwest, 12:32 am EDT (04:32 UTC): overcast above 1,000 ft, remarks: bases OVC010. 413 nm along the route, 49 nm northwest 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 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 6 forecast points nearest it (RDU, ROA, RIC, ACY, JFK, BDL). 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	270° at 19 kt	−15 kt		135 kt	3 h 21 min	6:26 am EDT (10:26 UTC)
5,500 ft	270° at 18 kt	−13 kt		133 kt	3 h 24 min	6:29 am EDT (10:29 UTC)
7,500 ft	260° at 19 kt	−15 kt	11 °C	135 kt	3 h 21 min	6:26 am EDT (10:26 UTC)
9,500 ft	250° at 21 kt	−19 kt	7 °C	139 kt	3 h 16 min	6:21 am EDT (10:21 UTC)
11,500 ft	240° at 23 kt	−22 kt	5 °C	142 kt	3 h 11 min	6:16 am EDT (10:16 UTC)
13,500 ft	240° at 26 kt	−25 kt	1 °C	145 kt	3 h 07 min	6:12 am EDT (10:12 UTC)
15,500 ft	240° at 30 kt	−29 kt	-3 °C	149 kt	3 h 02 min	6:07 am EDT (10:07 UTC)
17,500 ft	240° at 34 kt	−32 kt	-7 °C	152 kt	2 h 59 min	6:04 am EDT (10:04 UTC)
18,000 ft FL180	240° at 34 kt	−33 kt	-8 °C	153 kt	2 h 58 min	6:03 am EDT (10:03 UTC)
24,000 ft FL240	240° at 46 kt	−45 kt	-20 °C	165 kt	2 h 45 min	5:50 am EDT (09:50 UTC)
30,000 ft FL300	230° at 73 kt	−73 kt	-31 °C	193 kt	2 h 21 min	5:26 am EDT (09:26 UTC)
34,000 ft FL340	230° at 85 kt	−85 kt	-39 °C	205 kt	2 h 13 min	5:18 am EDT (09:18 UTC)
39,000 ft FL390	230° at 67 kt	−66 kt	-50 °C	186 kt	2 h 26 min	5:31 am EDT (09:31 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
RDU	used from 0 nm out; 49 nm from the line	280/33	300/23 11°	300/28 8°	290/28 4°	260/41 -6°	240/52 -18°	230/66 -31°	230/76 -39°	240/52 -49°
ROA	used from 49 nm out; 58 nm from the line	310/29	330/31 13°	340/28 7°	330/25 3°	310/32 -8°	300/32 -22°	290/32 -31°	270/35 -38°	270/32 -47°
RIC	used from 98 nm out; 38 nm from the line	270/23	280/19 11°	270/18 8°	240/22 4°	230/39 -7°	220/55 -18°	220/75 -30°	230/83 -39°	230/64 -50°
ACY	used from 246 nm out; 60 nm from the line	220/19	220/18 14°	210/36 9°	210/35 5°	220/36 -8°	240/49 -21°	220/90 -31°	230/103 -40°	230/81 -50°
JFK	used from 345 nm out; 29 nm from the line	250/18	250/23 14°	240/33 9°	240/33 4°	240/38 -10°	240/45 -21°	230/86 -32°	230/102 -40°	230/84 -51°
BDL	used from 443 nm out; 46 nm from the line	120/24	290/23 12°	280/21 8°	250/36 3°	250/41 -11°	230/48 -21°	230/78 -32°	230/96 -41°	230/86 -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
GSO Greensboro, NC	departure	VFR Sky: a few clouds at 3,700 feet	from the west-southwest (240°) at 6 knots	10+ mi	none	925 ft	2:54 am EDT (06:54 UTC)
DAN Danville, VA	39 nm out, 2 nm east of the line	VFR Sky: overcast at 9,500 feet	from the west-southwest (250°) at 9 knots	10+ mi	9,500 ft	571 ft	06:53 UTC
CXE Chase City, VA	79 nm out, 20 nm southeast of the line	VFR Sky: scattered clouds at 4,400 feet, a broken layer at 7,500 feet, overcast at 8,500 feet	from the west (270°) at 4 knots	10+ mi	7,500 ft	503 ft	06:55 UTC
FVX Farmville, VA	108 nm out, 5 nm west of the line	VFR Sky: scattered clouds at 700 feet, scattered clouds at 3,400 feet, overcast at 4,700 feet	calm	10+ mi	4,700 ft	415 ft	06:55 UTC
EZF Fredericksburg, VA	177 nm out, 9 nm northwest of the line	IFR Sky: overcast at 800 feet Weather: heavy drizzle	from the west-northwest (300°) at 6 knots	10+ mi	800 ft	85 ft	06:55 UTC
DCA Washington, DC	217 nm out, 21 nm northwest of the line, tower	IFR Sky: overcast at 900 feet Weather: light drizzle, mist	from the north-northwest (330°) at 12 knots	5 mi	900 ft	14 ft	06:52 UTC
ESN Easton, MD	246 nm out, 12 nm southeast of the line, tower	low IFR Sky: overcast at 200 feet Weather: mist	from the north-northeast (030°) at 11 knots	4 mi	200 ft	72 ft	06:55 UTC
PHL Philadelphia, PA	315 nm out, 9 nm northwest of the line, tower	marginal VFR Sky: scattered clouds at 800 feet, a broken layer at 1,400 feet, overcast at 2,700 feet Weather: light rain, mist	from the northeast (050°) at 11 knots	5 mi	1,400 ft	35 ft	06:54 UTC
PNE Philadelphia, PA	335 nm out, 11 nm northwest of the line, tower	IFR Sky: overcast at 600 feet Weather: light rain	from the northeast (040°) at 4 knots	10+ mi	600 ft	119 ft	06:54 UTC
JFK New York, NY	394 nm out, 4 nm east of the line, tower	marginal VFR Sky: a broken layer at 1,000 feet, overcast at 2,100 feet	from the north-northeast (030°) at 14 knots	10+ mi	1,000 ft	13 ft	06:51 UTC
FRG Farmingdale, NY	413 nm out, 9 nm southeast of the line, tower	IFR Sky: overcast at 900 feet	from the north-northeast (030°) at 11 knots	10+ mi	900 ft	81 ft	06:53 UTC
HVN New Haven, CT	destination	marginal VFR Sky: a few clouds at 900 feet, overcast at 2,100 feet	from the north (010°) at 11 knots	10+ mi	2,100 ft	12 ft	2:53 am EDT (06:53 UTC)

The highest airport on this list sits at 925 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At HVN when you get there the forecast at the estimated arrival, 5:18 am EDT (09:18 UTC)

HVN has no terminal forecast; use the nearest airport that does.

The forecast for GSO, the departure

From Mon 2:00 am EDT (06:00 UTC): wind from the west at 9 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, scattered clouds at 10,000 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the northwest at 11 knots, gusting to 19, visibility more than 6 miles, scattered clouds at 3,000 feet, a broken layer at 4,500 feet
From Mon 5:30 pm EDT (21:30 UTC): wind from the northwest at 4 knots, visibility more than 6 miles, scattered clouds at 25,000 feet

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

4/9383 WASHINGTON, DC., USA 8 nm from the route, 217 nm along the route · security · ZDC
6/8719 Greenwood, DE, Friday, October 16, 2026 through Saturday, October 17, 2026 UTC 20 nm from the route, 266 nm along the route · air shows/sports · starts Friday 16 October · ZDC
6/8886 Greenwood, DE, Sunday, October 18, 2026 UTC 20 nm from the route, 266 nm along the route · air shows/sports · starts Sunday 18 October · ZDC
5/2811 NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local 9 nm from the route, 394 nm along the route · security · until 20 October · ZNY

Daylight

Sunset at GSO 6:48 pm EDT (22:48 UTC), at HVN 6:15 pm EDT (22:15 UTC) (civil twilight ends 6:43 pm EDT (22:43 UTC)). At 120 knots the arrival at HVN is before sunrise there (6:59 am EDT (10:59 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: Piedmont Triad International, Tweed/New Haven Airport.