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

Montauk Airport to Nantucket Memorial MTP → ACK

85 nautical miles (98 statute miles) east on a straight line, true course 082°, about 097° magnetic at the departure end (variation 15W). At 120 knots that is 25 min at the quickest height in today's winds (39,000 ft, a 84-knot tailwind), arriving about 10:35 pm EDT (02:35 UTC), after sunset at the destination. 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: 6 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.

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 MTP.

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

urgent PC12 at 11,000 ft, 35 nm north, 7:29 pm EDT (23:29 UTC): moderate turbulence, remarks: during the descent on wipor arrival. At the departure end, 35 nm north 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
PC12 at 10,000 ft, 37 nm north, 7:53 pm EDT (23:53 UTC): moderate turbulence. At the departure end, 37 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
BCS3 at 18,000 ft, 30 nm north, 8:17 pm EDT (00:17 UTC): moderate chop turbulence, remarks: moderate CHOP180-210 smooth above 22,000 ft. 47 nm along the route, 30 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
B738 descending, 45 nm west, 7:49 pm EDT (23:49 UTC): a broken layer above 900 ft. At the departure end, 45 nm west of the line.
as filed, and in English
```
HVN UA /OV HVN/TM 2349/FLDURD/TP B738/SK BKN009
```
Report
a routine report filed through HVN
Where
over HVN
Time
23:49 UTC
Height
during the descent
Aircraft
B738
Sky
a broken layer from 900 ft
C68 descending, 45 nm west, 7:28 pm EDT (23:28 UTC): a broken layer above 900 ft. At the departure end, 45 nm west of the line.
as filed, and in English
```
HVN UA /OV HVN/TM 2328/FLDURD/TP C68/SK BKN009
```
Report
a routine report filed through HVN
Where
over HVN
Time
23:28 UTC
Height
during the descent
Aircraft
C68
Sky
a broken layer from 900 ft
B772 at 37,000 ft, 44 nm north, 8:04 pm EDT (00:04 UTC): light turbulence. 9 nm along the route, 44 nm north of the line.
as filed, and in English
```
IJD UA /OV LZD/TM 0004/FL370/TP B772/TB LGT MOD CHOP 370
```
Report
a routine report filed through IJD
Where
over LZD
Time
00:04 UTC
Height
at 37,000 ft
Aircraft
B772
Turbulence
light moderate chop at 37,000 ft
CRJ7 at 12,000 ft, 4 nm northwest, 7:59 pm EDT (23:59 UTC): light turbulence, remarks: during the climb at 12,000 ft. 19 nm along the route, 4 nm northwest of the line.
as filed, and in English
```
BID UA /OV SEY/TM 2359/FL120/TP CRJ7/TB LGT MOD CHOP/RM DURC 120
```
Report
a routine report filed through BID
Where
over SEY
Time
23:59 UTC
Height
at 12,000 ft
Aircraft
CRJ7
Turbulence
light moderate chop
Remarks
during the climb at 12,000 ft
E75S at 12,000 ft, 30 nm north, 8:59 pm EDT (00:59 UTC): light turbulence, remarks: during the climb from 12,000 ft to 17,000 ft smooth above 18,000 ft. 47 nm along the route, 30 nm north of the line.
as filed, and in English
```
EWB UA /OV EWB/TM 0059/FL120/TP E75S/TB LGT MOD/RM DURC 120-170 SMOOTH ABOVE 180
```
Report
a routine report filed through EWB
Where
over EWB
Time
00:59 UTC
Height
at 12,000 ft
Aircraft
E75S
Turbulence
light moderate
Remarks
during the climb from 12,000 ft to 17,000 ft smooth above 18,000 ft
E75S at 11,000 ft, 48 nm north, 7:59 pm EDT (23:59 UTC): light to moderate turbulence. 47 nm along the route, 48 nm north of the line.
as filed, and in English
```
BOS UA /OV BOS210025/TM 2359/FL110/TP E75S/TB LGT TO MOD
```
Report
a routine report filed through BOS
Where
25 nm southwest (210°) of BOS
Time
23:59 UTC
Height
at 11,000 ft
Aircraft
E75S
Turbulence
light to moderate
BC3 at 20,000 ft, 43 nm north, 7:51 pm EDT (23:51 UTC): light chop turbulence, remarks: during the climb from 14,000 ft to 20,000 ft ssoxs sid. 56 nm along the route, 43 nm north of the line.
as filed, and in English
```
PYM UA /OV PYM/TM 2351/FL200/TP BC3/TB LGT CHOP/RM DURC 140-200 SSOXS SID
```
Report
a routine report filed through PYM
Where
over PYM
Time
23:51 UTC
Height
at 20,000 ft
Aircraft
BC3
Turbulence
light chop
Remarks
during the climb from 14,000 ft to 20,000 ft ssoxs sid
B764 at 35,000 ft, 33 nm south, 7:18 pm EDT (23:18 UTC): light to moderate turbulence. 75 nm along the route, 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

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 1 forecast point nearest it (ACK). 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	150° at 21 kt	+6 kt		114 kt	45 min	10:55 pm EDT (02:55 UTC)
5,500 ft	170° at 28 kt	+2 kt		118 kt	43 min	10:53 pm EDT (02:53 UTC)
7,500 ft	190° at 29 kt	−9 kt	8 °C	129 kt	40 min	10:50 pm EDT (02:50 UTC)
9,500 ft	210° at 32 kt	−22 kt	8 °C	142 kt	36 min	10:46 pm EDT (02:46 UTC)
11,500 ft	230° at 40 kt	−33 kt	4 °C	153 kt	33 min	10:43 pm EDT (02:43 UTC)
13,500 ft	240° at 42 kt	−37 kt	0 °C	157 kt	32 min	10:42 pm EDT (02:42 UTC)
15,500 ft	240° at 43 kt	−40 kt	-3 °C	160 kt	32 min	10:42 pm EDT (02:42 UTC)
17,500 ft	250° at 44 kt	−42 kt	-6 °C	162 kt	31 min	10:41 pm EDT (02:41 UTC)
18,000 ft FL180	250° at 44 kt	−43 kt	-7 °C	163 kt	31 min	10:41 pm EDT (02:41 UTC)
24,000 ft FL240	250° at 50 kt	−49 kt	-17 °C	169 kt	30 min	10:40 pm EDT (02:40 UTC)
30,000 ft FL300	240° at 62 kt	−57 kt	-32 °C	177 kt	29 min	10:39 pm EDT (02:39 UTC)
34,000 ft FL340	250° at 71 kt	−69 kt	-42 °C	189 kt	27 min	10:37 pm EDT (02:37 UTC)
39,000 ft FL390	250° at 86 kt	−84 kt	-55 °C	204 kt	25 min	10:35 pm EDT (02:35 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; 61 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°

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	Elevation
MTP Montauk, NY	departure	no report just now	6 ft
BID Block Island, RI	19 nm out, 4 nm northwest of the line	no report just now	107 ft
MVY Vineyard Haven, MA	56 nm out, 12 nm north of the line, tower	no report just now	66 ft
ACK Nantucket, MA	destination	no report just now	46 ft

The highest airport on this list sits at 107 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At ACK when you get there the forecast at the estimated arrival, 10:35 pm EDT (02:35 UTC)

ACK 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 MTP 6:12 pm EDT (22:12 UTC), at ACK 6:04 pm EDT (22:04 UTC) (civil twilight ends 6:32 pm EDT (22:32 UTC)). At 120 knots the arrival at ACK is after sunset there (6:06 pm EDT (22:06 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: Montauk Airport, Nantucket Memorial.