Plan a flight · Sun 8:09 pm EDT (00:09 UTC)

Northeast Kingdom International to Nantucket Memorial EFK → ACK

238 nautical miles (274 statute miles) southeast on a straight line, true course 156°, about 173° magnetic at the departure end (variation 17W). At 120 knots that is 1 h 52 min at the quickest height in today's winds (39,000 ft, a 7-knot tailwind), arriving about 10:01 pm EDT (02:01 UTC), after sunset at the destination. Right now EFK is VFR, wind from the south (170°) at 6 knots; ACK is marginal VFR, wind from the east (090°) at 17 knots, gusting to 25. 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 ZULU 1C: moderate icing up to 24,000 ft. Over the first 208 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 179 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the whole 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 50 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 EFK.

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

B763 at 30,000 ft, 34 nm west, 5:39 pm EDT (21:39 UTC): moderate turbulence. 30 nm along the route, 34 nm west of the line.
as filed, and in English
```
MPV UA /OV MPV330015/TM 2139/FL300/TP B763/TB MOD
```
Report
a routine report filed through MPV
Where
15 nm northwest (330°) of MPV
Time
21:39 UTC
Height
at 30,000 ft
Aircraft
B763
Turbulence
moderate
BCS3 at 13,000 ft, 12 nm southwest, 7:03 pm EDT (23:03 UTC): moderate turbulence from 13,000 ft to 16,000 ft, heavy rain, remarks: during the climb. 159 nm along the route, 12 nm southwest of the line.
as filed, and in English
```
BOS UA /OV BOS18005/TM 2303/FL130/TP BCS3/WX +RA/TB MOD 130-160/RM DURC
```
Report
a routine report filed through BOS
Where
BOS18005
Time
23:03 UTC
Height
at 13,000 ft
Aircraft
BCS3
Weather
heavy rain
Turbulence
moderate from 13,000 ft to 16,000 ft
Remarks
during the climb
E75L at 11,000 ft, 34 nm southwest, 6:05 pm EDT (22:05 UTC): moderate turbulence from 11,000 ft to 15,000 ft. 179 nm along the route, 34 nm southwest of the line.
as filed, and in English
```
BOS UA /OV BOS220030/TM 2205/FL110/TP E75L/TB MOD 150-110
```
Report
a routine report filed through BOS
Where
30 nm southwest (220°) of BOS
Time
22:05 UTC
Height
at 11,000 ft
Aircraft
E75L
Turbulence
moderate from 15,000 ft to 11,000 ft
B763 at 30,000 ft, 40 nm northeast, 5:29 pm EDT (21:29 UTC): light to moderate chop turbulence. At the departure end, 40 nm northeast of the line.
as filed, and in English
```
EFK UA /OV CYSC/TM 2129/FL300/TP B763/TB LGT OCNL MOD CHOP
```
Report
a routine report filed through EFK
Where
over CYSC
Time
21:29 UTC
Height
at 30,000 ft
Aircraft
B763
Turbulence
light occasional moderate chop
B787 at 37,000 ft, 1 nm southeast, 7:34 pm EDT (23:34 UTC): light to moderate turbulence. 20 nm along the route, 1 nm southeast of the line.
as filed, and in English
```
CDA UA /OV CDA/TM 2334/FL370/TP B787/TB LGT OCNL MOD
```
Report
a routine report filed through CDA
Where
over CDA
Time
23:34 UTC
Height
at 37,000 ft
Aircraft
B787
Turbulence
light occasional moderate
B767 at 36,000 ft, 31 nm west, 7:26 pm EDT (23:26 UTC): light to moderate turbulence. 20 nm along the route, 31 nm west of the line.
as filed, and in English
```
BTV UA /OV BTV100020/TM 2326/FL360/TP B767/TB LGT OCNL MOD
```
Report
a routine report filed through BTV
Where
20 nm east (100°) of BTV
Time
23:26 UTC
Height
at 36,000 ft
Aircraft
B767
Turbulence
light occasional moderate
B39M at 32,000 ft, 28 nm southwest, 6:09 pm EDT (22:09 UTC): no turbulence. 40 nm along the route, 28 nm southwest of the line.
as filed, and in English
```
MPV UA /OV MPV/TM 2209/FL320/TP B39M/TB NEG
```
Report
a routine report filed through MPV
Where
over MPV
Time
22:09 UTC
Height
at 32,000 ft
Aircraft
B39M
Turbulence
none
PC12 at 28,000 ft, 28 nm southwest, 5:50 pm EDT (21:50 UTC): light rime icing, -27 °C. 40 nm along the route, 28 nm southwest of the line.
as filed, and in English
```
MPV UA /OV MPV/TM 2150/FL280/TP PC12/TA M27/IC LGT RIME
```
Report
a routine report filed through MPV
Where
over MPV
Time
21:50 UTC
Height
at 28,000 ft
Aircraft
PC12
Temperature
−27 °C
Icing
light rime
B763 at 30,000 ft, 28 nm southwest, 5:36 pm EDT (21:36 UTC): light chop turbulence. 40 nm along the route, 28 nm southwest of the line.
as filed, and in English
```
MPV UA /OV MPV/TM 2136/FL300/TP B763/TB INTMT LGT CHOP
```
Report
a routine report filed through MPV
Where
over MPV
Time
21:36 UTC
Height
at 30,000 ft
Aircraft
B763
Turbulence
intermittent light chop
F2TH at 8,000 ft, 46 nm southwest, 5:45 pm EDT (21:45 UTC): light chop turbulence, remarks: during the descent on ZELKA2. 129 nm along the route, 46 nm southwest of the line.
as filed, and in English
```
FIT UA /OV GDM100005/TM 2145/FL080/TP F2TH/TB LGT CHOP/RM DURD ON ZELKA2
```
Report
a routine report filed through FIT
Where
5 nm east (100°) of GDM
Time
21:45 UTC
Height
at 8,000 ft
Aircraft
F2TH
Turbulence
light chop
Remarks
during the descent on ZELKA2
E55P at 5,000 ft, 39 nm southwest, 5:51 pm EDT (21:51 UTC): rain. 149 nm along the route, 39 nm southwest of the line.
as filed, and in English
```
BOS UA /OV BED260017/TM 2151/FL050/TP E55P/WX RA
```
Report
a routine report filed through BOS
Where
17 nm west (260°) of BED
Time
21:51 UTC
Height
at 5,000 ft
Aircraft
E55P
Weather
rain
BCS3 at 700 ft, 11 nm west, 7:56 pm EDT (23:56 UTC): a broken layer above 700 ft, remarks: during the descent runway 22L bos. 159 nm along the route, 11 nm west of the line.
as filed, and in English
```
BOS UA /OV KBOS040003/TM 2356/FL007/TP BCS3/SK BKN007/RM DURD RY 22L BOS
```
Report
a routine report filed through BOS
Where
3 nm northeast (040°) of KBOS
Time
23:56 UTC
Height
at 700 ft
Aircraft
BCS3
Sky
a broken layer from 700 ft
Remarks
during the descent runway 22L bos
A321 at 1,900 ft, 9 nm west, 6:55 pm EDT (22:55 UTC): rain, remarks: during the descent runway 22L bos. 159 nm along the route, 9 nm west of the line.
as filed, and in English
```
BOS UA /OV KBOS040005/TM 2255/FL019/TP A321/WX FV05SM RA/RM DURD RY 22L BOS
```
Report
a routine report filed through BOS
Where
5 nm northeast (040°) of KBOS
Time
22:55 UTC
Height
at 1,900 ft
Aircraft
A321
Weather
flight visibility 5 miles, rain
Remarks
during the descent runway 22L bos
B763 at 35,000 ft, 12 nm southwest, 6:25 pm EDT (22:25 UTC): light chop turbulence. 159 nm along the route, 12 nm southwest of the line.
as filed, and in English
```
BOS UA /OV BOS/TM 2225/FL350/TP B763/TB LGT CHOP
```
Report
a routine report filed through BOS
Where
over BOS
Time
22:25 UTC
Height
at 35,000 ft
Aircraft
B763
Turbulence
light chop

9 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 3 forecast points nearest it (BML, BOS, 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	180° at 20 kt	+18 kt		102 kt	2 h 20 min	10:29 pm EDT (02:29 UTC)
5,500 ft	190° at 21 kt	+17 kt		103 kt	2 h 19 min	10:28 pm EDT (02:28 UTC)
7,500 ft	210° at 17 kt	+9 kt	7 °C	111 kt	2 h 09 min	10:18 pm EDT (02:18 UTC)
9,500 ft	240° at 19 kt	+1 kt	6 °C	119 kt	2 h	10:09 pm EDT (02:09 UTC)
11,500 ft	250° at 27 kt	−4 kt	2 °C	124 kt	1 h 55 min	10:04 pm EDT (02:04 UTC)
13,500 ft	250° at 30 kt	−4 kt	-1 °C	124 kt	1 h 55 min	10:04 pm EDT (02:04 UTC)
15,500 ft	250° at 33 kt	−3 kt	-5 °C	123 kt	1 h 56 min	10:05 pm EDT (02:05 UTC)
17,500 ft	250° at 35 kt	−2 kt	-8 °C	122 kt	1 h 57 min	10:06 pm EDT (02:06 UTC)
18,000 ft FL180	250° at 36 kt	−2 kt	-9 °C	122 kt	1 h 57 min	10:06 pm EDT (02:06 UTC)
24,000 ft FL240	250° at 48 kt	−2 kt	-18 °C	122 kt	1 h 57 min	10:06 pm EDT (02:06 UTC)
30,000 ft FL300	240° at 63 kt	+2 kt	-33 °C	118 kt	2 h 01 min	10:10 pm EDT (02:10 UTC)
34,000 ft FL340	250° at 77 kt	−5 kt	-43 °C	125 kt	1 h 54 min	10:03 pm EDT (02:03 UTC)
39,000 ft FL390	250° at 101 kt	−7 kt	-55 °C	127 kt	1 h 52 min	10:01 pm EDT (02:01 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
BML	used from 0 nm out; 35 nm from the line	220/19	210/17 9°	240/12 4°	270/22 1°	250/21 -11°	260/41 -19°	250/68 -34°	250/82 -44°	250/115 -55°
BOS	used from 99 nm out; 38 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°
ACK	used from 198 nm out; 20 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	Wind	Visibility	Ceiling	Elevation	Reported
EFK Newport, VT	departure	VFR Sky: overcast at 12,000 feet	from the south (170°) at 6 knots	10+ mi	12,000 ft	933 ft	7:55 pm EDT (23:55 UTC)
CDA Lyndonville, VT	20 nm out, 1 nm southeast of the line	VFR Sky: scattered clouds at 6,000 feet, a broken layer at 9,500 feet, a broken layer at 12,000 feet	from the south-southeast (160°) at 4 knots	10+ mi	9,500 ft	1,187 ft	23:55 UTC
LCI Laconia, NH	89 nm out, 3 nm northwest of the line	VFR Sky: overcast at 8,500 feet Weather: light rain	from the south (170°) at 4 knots	10+ mi	8,500 ft	545 ft	23:56 UTC
LWM Lawrence, MA	139 nm out, 9 nm west of the line, tower	marginal VFR Sky: a broken layer at 2,900 feet, overcast at 7,500 feet Weather: rain, mist	calm	3 mi	2,900 ft	147 ft	23:54 UTC
BVY Beverly, MA	149 nm out, 4 nm southwest of the line, tower	marginal VFR Sky: a few clouds at 1,600 feet, a broken layer at 2,400 feet, overcast at 7,500 feet Weather: heavy rain, mist	calm	3 mi	2,400 ft	107 ft	23:53 UTC
HYA Hyannis, MA	208 nm out, 3 nm southeast of the line, tower	marginal VFR Sky: a broken layer at 4,200 feet, overcast at 5,000 feet Weather: heavy rain, mist	from the east-northeast (070°) at 10 knots, gusting to 16	3 mi	4,200 ft	54 ft	23:56 UTC
ACK Nantucket, MA	destination	marginal VFR Sky: a few clouds at 4,500 feet, overcast at 6,500 feet Weather: rain, mist	from the east (090°) at 17 knots, gusting to 25	5 mi	6,500 ft	46 ft	7:53 pm EDT (23:53 UTC)

The highest airport on this list sits at 1,187 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, 10:01 pm EDT (02:01 UTC)

Wind from the east at 14 knots, gusting to 24, visibility 2 miles, rain, mist, overcast at 1,000 feet IFR

The whole forecast for ACK

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

The forecast for EFK, the departure

From Sun 8:00 pm EDT (00:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, a broken layer at 6,000 feet, overcast at 10,000 feet
From Mon 2:00 am EDT (06:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 3,000 feet
From Mon 10:00 am EDT (14:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 1,700 feet
From Mon 1:00 pm EDT (17:00 UTC): wind from the northwest at 6 knots, visibility more than 6 miles, overcast at 1,600 feet
From Mon 5:00 pm EDT (21:00 UTC): wind from the north-northwest at 5 knots, visibility more than 6 miles, light rain showers, overcast at 1,300 feet

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 EFK 6:09 pm EDT (22:09 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: Northeast Kingdom International, Nantucket Memorial.