Plan a flight · Sun 11:05 pm EDT (03:05 UTC)

Nantucket Memorial to Morristown Municipal ACK → MMU

199 nautical miles (229 statute miles) west on a straight line, true course 264°, about 278° magnetic at the departure end (variation 14W). At 120 knots that is 1 h 57 min at the quickest height in today's winds (4,500 ft, a 18-knot headwind), arriving about 1:02 am EDT (05:02 UTC), after sunset at the destination. Right now ACK is IFR, wind from the east (090°) at 15 knots, gusting to 24; MMU is IFR, wind from the north (360°) at 7 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: 20 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 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. 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 ACK.

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

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. 40 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
E75S at 16,000 ft, 49 nm north, 8:28 pm EDT (00:28 UTC): moderate chop turbulence. 129 nm along the route, 49 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
BCS3 at 4,000 ft, 3 nm northeast, 8:42 pm EDT (00:42 UTC): moderate turbulence, imc. 139 nm along the route, 3 nm northeast 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
B38M at 6,000 ft, 8 nm south, 8:47 pm EDT (00:47 UTC): moderate turbulence. 189 nm along the route, 8 nm south 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
CRJ7 at 15,000 ft, 31 nm south, 8:07 pm EDT (00:07 UTC): moderate chop turbulence. 189 nm along the route, 31 nm south 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
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. 40 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 30,000 ft, 50 nm north, 8:50 pm EDT (00:50 UTC): light chop turbulence, remarks: during the climb. 119 nm along the route, 50 nm north of the line.
as filed, and in English
```
BDL UA /OV BDL240010/TM 0050/FL300/TP E75S/TB OCNL LGT CHOP/RM DURC
```
Report
a routine report filed through BDL
Where
10 nm southwest (240°) of BDL
Time
00:50 UTC
Height
at 30,000 ft
Aircraft
E75S
Turbulence
occasional light chop
Remarks
during the climb
A320 descending, 9 nm south, 10:45 pm EDT (02:45 UTC): remarks: final runway 24. 139 nm along the route, 9 nm south of the line.
as filed, and in English
```
ISP UA /OV ISP/TM 0245/FLDURD/TP A320/SK BCN007/RM FINAL RY24
```
Report
a routine report filed through ISP
Where
over ISP
Time
02:45 UTC
Height
during the descent
Aircraft
A320
Sky
BCN007
Remarks
final runway 24
A320 at 1,000 ft, 9 nm south, 9:14 pm EDT (01:14 UTC): remarks: smooth ride heavy rain. 139 nm along the route, 9 nm south of the line.
as filed, and in English
```
ISP UA /OV ISP/TM 0114/FL010/TP A320/RM SMOOTH RIDE - HEAVY RAIN
```
Report
a routine report filed through ISP
Where
over ISP
Time
01:14 UTC
Height
at 1,000 ft
Aircraft
A320
Remarks
smooth ride heavy rain
A321 at 700 ft, 16 nm south, 10:46 pm EDT (02:46 UTC): overcast above 700 ft. 169 nm along the route, 16 nm south of the line.
as filed, and in English
```
JFK UA /OV KJFK225002/TM 0246/FL007/TP A321/SK OVC007
```
Report
a routine report filed through JFK
Where
2 nm southwest (225°) of KJFK
Time
02:46 UTC
Height
at 700 ft
Aircraft
A321
Sky
overcast from 700 ft
GA6C at 1,100 ft, 12 nm north, 10:31 pm EDT (02:31 UTC): overcast above 1,100 ft, remarks: low-level wind shear + 5 knots runway 34. 169 nm along the route, 12 nm north of the line.
as filed, and in English
```
HPN UA /OV HPN/TM 0231/FL011/TP GA6C/SK OVC011/RM LLWS +/- 5 KNOTS RWY34
```
Report
a routine report filed through HPN
Where
over HPN
Time
02:31 UTC
Height
at 1,100 ft
Aircraft
GA6C
Sky
overcast from 1,100 ft
Remarks
low-level wind shear + 5 knots runway 34
A320 at 800 ft, 15 nm south, 10:01 pm EDT (02:01 UTC): a broken layer above 800 ft. 169 nm along the route, 15 nm south of the line.
as filed, and in English
```
JFK UA /OV JFK/TM 0201/FL008/TP A320/SK BKN008
```
Report
a routine report filed through JFK
Where
over JFK
Time
02:01 UTC
Height
at 800 ft
Aircraft
A320
Sky
a broken layer from 800 ft
B739 at 700 ft, 16 nm south, 9:22 pm EDT (01:22 UTC): overcast above 700 ft. 169 nm along the route, 16 nm south of the line.
as filed, and in English
```
JFK UA /OV KJFK225002/TM 0122/FL007/TP B739/SK OVC007
```
Report
a routine report filed through JFK
Where
2 nm southwest (225°) of KJFK
Time
01:22 UTC
Height
at 700 ft
Aircraft
B739
Sky
overcast from 700 ft
CL60 descending, 12 nm north, 9:15 pm EDT (01:15 UTC): remarks: bases 900 ft. 169 nm along the route, 12 nm north of the line.
as filed, and in English
```
HPN UA /OV KHPN/TM 0115/FLDURD/TP CL60/RM BASES 009
```
Report
a routine report filed through HPN
Where
over KHPN
Time
01:15 UTC
Height
during the descent
Aircraft
CL60
Remarks
bases 900 ft

6 more routine reports are on the map.

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 3 forecast points nearest it (ACK, BDL, JFK). 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	250° at 18 kt	+18 kt		102 kt	1 h 57 min	1:02 am EDT (05:02 UTC)
6,500 ft	260° at 26 kt	+26 kt	13 °C	94 kt	2 h 07 min	1:12 am EDT (05:12 UTC)
8,500 ft	260° at 29 kt	+29 kt	10 °C	91 kt	2 h 11 min	1:16 am EDT (05:16 UTC)
10,500 ft	250° at 32 kt	+32 kt	6 °C	88 kt	2 h 16 min	1:21 am EDT (05:21 UTC)
12,500 ft	250° at 35 kt	+34 kt	3 °C	86 kt	2 h 19 min	1:24 am EDT (05:24 UTC)
14,500 ft	250° at 37 kt	+36 kt	-2 °C	84 kt	2 h 22 min	1:27 am EDT (05:27 UTC)
16,500 ft	240° at 39 kt	+37 kt	-6 °C	83 kt	2 h 24 min	1:29 am EDT (05:29 UTC)
18,000 ft FL180	240° at 41 kt	+38 kt	-10 °C	82 kt	2 h 26 min	1:31 am EDT (05:31 UTC)
24,000 ft FL240	230° at 47 kt	+42 kt	-20 °C	78 kt	2 h 33 min	1:38 am EDT (05:38 UTC)
30,000 ft FL300	230° at 81 kt	+70 kt	-32 °C	50 kt	3 h 59 min	3:04 am EDT (07:04 UTC)
34,000 ft FL340	230° at 96 kt	+83 kt	-40 °C	37 kt	5 h 23 min	4:28 am EDT (08:28 UTC)
39,000 ft FL390	230° at 86 kt	+75 kt	-52 °C	45 kt	4 h 25 min	3:30 am EDT (07:30 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
ACK	used from 0 nm out; 25 nm from the line	230/29	270/37 16°	270/38 10°	270/40 4°	240/46 -8°	230/52 -17°	240/74 -31°	240/83 -41°	240/91 -53°
BDL	used from 50 nm out; 67 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°
JFK	used from 100 nm out; 50 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°

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	IFR Sky: overcast at 1,400 feet Weather: heavy rain, mist	from the east (090°) at 15 knots, gusting to 24	2.5 mi	1,400 ft	46 ft	10:53 pm EDT (02:53 UTC)
MVY Vineyard Haven, MA	20 nm out, 12 nm northwest of the line, tower	IFR Sky: a broken layer at 700 feet, a broken layer at 1,000 feet, overcast at 1,900 feet Weather: light rain	from the east (090°) at 15 knots, gusting to 29	10+ mi	700 ft	66 ft	02:53 UTC
GON Groton (New London), CT	90 nm out, 16 nm north of the line, tower	IFR Sky: a few clouds at 1,000 feet, a broken layer at 1,500 feet, overcast at 3,800 feet Weather: light rain, mist	from the north-northeast (030°) at 16 knots, gusting to 28	2.5 mi	1,500 ft	9 ft	02:56 UTC
JPX East Hampton, NY	100 nm out, 5 nm south of the line, tower	IFR Sky: overcast at 500 feet Weather: light rain	from the northeast (050°) at 10 knots, gusting to 17	5 mi	500 ft	54 ft	02:55 UTC
TEB Teterboro, NJ	179 nm out, 4 nm west of the line, tower	IFR Sky: overcast at 900 feet Weather: light rain, mist	from the north (360°) at 8 knots, gusting to 16	3 mi	900 ft	8 ft	02:51 UTC
MMU Morristown, NJ	destination	IFR Sky: overcast at 600 feet Weather: drizzle	from the north (360°) at 7 knots	3 mi	600 ft	186 ft	10:55 pm EDT (02:55 UTC)

The highest airport on this list sits at 186 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At MMU when you get there the forecast at the estimated arrival, 1:02 am EDT (05:02 UTC)

MMU 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

5/2811 NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local 4 nm from the route, 179 nm along the route · security · until 20 October · ZNY

Daylight

Sunset at ACK 6:04 pm EDT (22:04 UTC), at MMU 6:22 pm EDT (22:22 UTC) (civil twilight ends 6:49 pm EDT (22:49 UTC)). At 120 knots the arrival at MMU is before sunrise there (7:05 am EDT (11:05 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, Morristown Municipal.