Plan a flight · Sun 10:04 pm EDT (02:04 UTC)

Nantucket Memorial to Sullivan County International ACK → MSV

215 nautical miles (247 statute miles) west on a straight line, true course 279°, about 293° magnetic at the departure end (variation 14W). At 120 knots that is 1 h 38 min at the quickest height in today's winds (4,500 ft, a 12-knot tailwind), arriving about 11:42 pm EDT (03:42 UTC), after sunset at the destination. Right now ACK is marginal VFR, wind from the east (100°) at 15 knots; MSV is low IFR, wind from the east-northeast (070°) at 8 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: 2 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 whole route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 13,000 ft. Over the whole route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 39 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 20 nm of the route.
AIRMET ZULU 1C: moderate icing up to 22,000 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 ACK.

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

urgent PC12 at 11,000 ft, 12 nm northeast, 7:29 pm EDT (23:29 UTC): moderate turbulence, remarks: during the descent on wipor arrival. 98 nm along the route, 12 nm northeast 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
A321 at 5,000 ft, 48 nm north, 8:46 pm EDT (00:46 UTC): moderate turbulence from 5,000 ft to 15,000 ft. 39 nm along the route, 48 nm north of the line.
as filed, and in English
```
BOS UA /OV BOS150020/TM 0046/FL050/TP A321/TB MOD 150-050
```
Report
a routine report filed through BOS
Where
20 nm southeast (150°) of BOS
Time
00:46 UTC
Height
at 5,000 ft
Aircraft
A321
Turbulence
moderate from 15,000 ft to 5,000 ft
BCS3 at 18,000 ft, 20 nm north, 8:17 pm EDT (00:17 UTC): moderate chop turbulence, remarks: moderate CHOP180-210 smooth above 22,000 ft. 39 nm along the route, 20 nm north of the line.
as filed, and in English
```
EWB UA /OV EWB/TM 0017/FL180/TP BCS3/TB MOD CHOP/RM MOD CHOP180-210 SMOOTH ABOVE FL220
```
Report
a routine report filed through EWB
Where
over EWB
Time
00:17 UTC
Height
at 18,000 ft
Aircraft
BCS3
Turbulence
moderate chop
Remarks
moderate CHOP180-210 smooth above 22,000 ft
BCS3 at 12,000 ft, 40 nm north, 8:11 pm EDT (00:11 UTC): moderate turbulence, rain, remarks: ssoxs dept from 12,000 ft to 16,000 ft. 49 nm along the route, 40 nm north of the line.
as filed, and in English
```
BOS UA /OV BOS200020/TM 0011/FL120/TP BCS3/WX RA+/TB MOD/RM SSOXS DEPT 120-160
```
Report
a routine report filed through BOS
Where
20 nm south (200°) of BOS
Time
00:11 UTC
Height
at 12,000 ft
Aircraft
BCS3
Weather
ra+
Turbulence
moderate
Remarks
ssoxs dept from 12,000 ft to 16,000 ft
E75S at 16,000 ft, 33 nm north, 7:35 pm EDT (23:35 UTC): moderate clear-air turbulence above 16,000 ft, remarks: moderate in +ra to light chop. 88 nm along the route, 33 nm north of the line.
as filed, and in English
```
SFZ UA /OV PUT360003/TM 2335/FL160/TP E75S/TB MOD 160 CAT/RM MOD IN +RA TO LGT CHOP
```
Report
a routine report filed through SFZ
Where
3 nm north (360°) of PUT
Time
23:35 UTC
Height
at 16,000 ft
Aircraft
E75S
Turbulence
moderate at 16,000 ft clear-air turbulence
Remarks
moderate in +ra to light chop
PC12 at 10,000 ft, 11 nm north, 7:53 pm EDT (23:53 UTC): moderate turbulence. 98 nm along the route, 11 nm north of the line.
as filed, and in English
```
BDL UA /OV HFD100017/TM 2353/FL100/TP PC12/TB MOD
```
Report
a routine report filed through BDL
Where
17 nm east (100°) of HFD
Time
23:53 UTC
Height
at 10,000 ft
Aircraft
PC12
Turbulence
moderate
GLF4 at 10,000 ft, 49 nm north, 9:03 pm EDT (01:03 UTC): moderate turbulence above 10,000 ft, light rain, remarks: instrument conditions. 107 nm along the route, 49 nm north of the line.
as filed, and in English
```
BDL UA /OV CEF060010/TM 0103/FL100/TP GLF4/WX -RA/TB MOD 100/RM IMC
```
Report
a routine report filed through BDL
Where
10 nm northeast (060°) of CEF
Time
01:03 UTC
Height
at 10,000 ft
Aircraft
GLF4
Weather
light rain
Turbulence
moderate at 10,000 ft
Remarks
instrument conditions
BCS3 at 4,000 ft, 34 nm south, 8:42 pm EDT (00:42 UTC): moderate turbulence, imc. 137 nm along the route, 34 nm south 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 16,000 ft, 13 nm north, 8:28 pm EDT (00:28 UTC): moderate chop turbulence. 137 nm along the route, 13 nm north of the line.
as filed, and in English
```
POU UA /OV PWL100025/TM 0028/FL160/TP E75S/TB MOD CHOP
```
Report
a routine report filed through POU
Where
25 nm east (100°) of PWL
Time
00:28 UTC
Height
at 16,000 ft
Aircraft
E75S
Turbulence
moderate chop
TBM9 descending, 46 nm south, 7:45 pm EDT (23:45 UTC): moderate turbulence, a broken layer above 700 ft. 137 nm along the route, 46 nm south 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
E75S at 10,000 ft, 23 nm north, 7:53 pm EDT (23:53 UTC): moderate clear-air turbulence. 166 nm along the route, 23 nm north 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
A388 at 34,000 ft, 39 nm north, 7:19 pm EDT (23:19 UTC): moderate chop turbulence. 166 nm along the route, 39 nm north of the line.
as filed, and in English
```
POU UA /OV PWL010030/TM 2319/FL340/TP A388/TB MOD CHOP
```
Report
a routine report filed through POU
Where
30 nm north (010°) of PWL
Time
23:19 UTC
Height
at 34,000 ft
Aircraft
A388
Turbulence
moderate chop
PC12 at 8,000 ft, 26 nm north, 7:29 pm EDT (23:29 UTC): moderate clear-air turbulence. 185 nm along the route, 26 nm north of the line.
as filed, and in English
```
POU UA /OV IGN340030/TM 2329/FL080/TP PC12/TB MOD CAT
```
Report
a routine report filed through POU
Where
30 nm north (340°) of IGN
Time
23:29 UTC
Height
at 8,000 ft
Aircraft
PC12
Turbulence
moderate clear-air turbulence
B764 at 35,000 ft, 33 nm south, 7:18 pm EDT (23:18 UTC): light to moderate turbulence. At the departure end, 33 nm south of the line.
as filed, and in English
```
ACK UA /OV ACK200035/TM 2318/FL350/TP B764/TB LGT OCNL MOD
```
Report
a routine report filed through ACK
Where
35 nm south (200°) of ACK
Time
23:18 UTC
Height
at 35,000 ft
Aircraft
B764
Turbulence
light occasional moderate

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 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 3 forecast points nearest it (ACK, BDL, AVP). 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	160° at 26 kt	−12 kt		132 kt	1 h 38 min	11:42 pm EDT (03:42 UTC)
6,500 ft	190° at 29 kt	−1 kt	10 °C	121 kt	1 h 47 min	11:51 pm EDT (03:51 UTC)
8,500 ft	210° at 32 kt	+14 kt	8 °C	106 kt	2 h 02 min	12:06 am EDT (04:06 UTC)
10,500 ft	230° at 32 kt	+21 kt	6 °C	99 kt	2 h 10 min	12:14 am EDT (04:14 UTC)
12,500 ft	240° at 32 kt	+26 kt	2 °C	94 kt	2 h 17 min	12:21 am EDT (04:21 UTC)
14,500 ft	250° at 35 kt	+29 kt	-2 °C	91 kt	2 h 22 min	12:26 am EDT (04:26 UTC)
16,500 ft	250° at 37 kt	+32 kt	-5 °C	88 kt	2 h 27 min	12:31 am EDT (04:31 UTC)
18,000 ft FL180	250° at 40 kt	+35 kt	-8 °C	85 kt	2 h 32 min	12:36 am EDT (04:36 UTC)
24,000 ft FL240	240° at 46 kt	+37 kt	-18 °C	83 kt	2 h 35 min	12:39 am EDT (04:39 UTC)
30,000 ft FL300	240° at 60 kt	+47 kt	-32 °C	73 kt	2 h 57 min	1:01 am EDT (05:01 UTC)
34,000 ft FL340	240° at 79 kt	+64 kt	-41 °C	56 kt	3 h 50 min	1:54 am EDT (05:54 UTC)
39,000 ft FL390	240° at 88 kt	+71 kt	-55 °C	49 kt	4 h 23 min	2:27 am EDT (06:27 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
ACK	used from 0 nm out; 24 nm from the line	150/19	170/30 8°	210/31 9°	230/42 3°	250/44 -7°	250/50 -17°	240/62 -32°	250/71 -42°	250/86 -55°
BDL	used from 49 nm out; 55 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°
AVP	used from 195 nm out; 56 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°

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
ACK Nantucket, MA	departure	marginal VFR Sky: a broken layer at 2,600 feet, overcast at 3,500 feet Weather: light rain	from the east (100°) at 15 knots	9 mi	2,600 ft	46 ft	9:53 pm EDT (01:53 UTC)
MVY Vineyard Haven, MA	29 nm out, 6 nm northeast of the line, tower	marginal VFR Sky: a few clouds at 600 feet, a broken layer at 1,000 feet, overcast at 2,200 feet Weather: rain	from the east (090°) at 13 knots, gusting to 21	10+ mi	1,000 ft	66 ft	01:53 UTC
OQU North Kingstown, RI	59 nm out, 13 nm north of the line, tower	reported, no category	from the northeast (050°) at 17 knots, gusting to 25		900 ft	18 ft	01:55 UTC
GON Groton (New London), CT	88 nm out, 8 nm south of the line, tower	marginal VFR Sky: a broken layer at 1,000 feet, overcast at 1,600 feet Weather: rain, mist	from the north-northeast (030°) at 12 knots, gusting to 22	3 mi	1,000 ft	9 ft	01:56 UTC
OXC Oxford, CT	137 nm out, 6 nm southwest of the line, tower	low IFR Sky: overcast at 400 feet Weather: light rain	from the northeast (050°) at 16 knots, gusting to 19	10+ mi	400 ft	730 ft	01:56 UTC
POU Poughkeepsie, NY	176 nm out, 2 nm east of the line, tower	marginal VFR Sky: a broken layer at 1,400 feet, overcast at 1,900 feet Weather: light rain, mist	from the north (350°) at 5 knots	4 mi	1,400 ft	163 ft	01:53 UTC
MSV Monticello, NY	destination	low IFR Sky: overcast at 400 feet Weather: light rain	from the east-northeast (070°) at 8 knots	9 mi	400 ft	1,403 ft	9:56 pm EDT (01:56 UTC)

The highest airport on this list sits at 1,403 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At MSV when you get there the forecast at the estimated arrival, 11:42 pm EDT (03:42 UTC)

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

The forecast for ACK, the departure

From Sun 8:00 pm EDT (00:00 UTC): wind from the east at 11 knots, visibility more than 6 miles, light rain, a few clouds at 2,400 feet, scattered clouds at 3,500 feet and more above
From Sun 10:00 pm EDT (02:00 UTC): wind from the east at 14 knots, gusting to 24, visibility 2 miles, rain, mist, overcast at 1,000 feet
From Mon 1:00 am EDT (05:00 UTC): wind from the east at 16 knots, gusting to 23, visibility 3 miles, rain, mist, overcast at 300 feet
From Mon 3:00 am EDT (07:00 UTC): wind from the east-northeast at 15 knots, visibility 1 mile, light rain showers, mist, overcast at 300 feet
From Mon 5:00 am EDT (09:00 UTC): wind from the north-northeast at 15 knots, visibility ¾ mile, mist, overcast at 300 feet
30% chance between Mon 5:00 am EDT (09:00 UTC) and 6:00 am EDT (10:00 UTC): visibility ¾ mile, light rain showers, mist, overcast at 100 feet
From Mon 11:00 am EDT (15:00 UTC): wind from the north-northeast at 15 knots, visibility more than 6 miles, a broken layer at 800 feet
From Mon 4:00 pm EDT (20:00 UTC): wind from the north at 13 knots, gusting to 21, visibility more than 6 miles, scattered clouds at 3,000 feet

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

6/7153 North Sicuate, RI, Saturday, October 10, 2026 through Monday, October 12, 2026 UTC 21 nm from the route, 68 nm along the route · drones kept away from a public gathering · until 12 October · ZBW

Daylight

Sunset at ACK 6:04 pm EDT (22:04 UTC), at MSV 6:23 pm EDT (22:23 UTC) (civil twilight ends 6:50 pm EDT (22:50 UTC)). At 120 knots the arrival at MSV is before sunrise there (7:07 am EDT (11:07 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, 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: Nantucket Memorial, Sullivan County International.