Plan a flight · Mon 3:39 am EDT (07:39 UTC)

Snow Lake Seaplane Base to Nantucket Memorial IN2 → ACK

673 nautical miles (775 statute miles) east on a straight line, true course 087°. At 120 knots that is 4 h 08 min at the quickest height in today's winds (34,000 ft, a 43-knot tailwind), arriving about 7:47 am EDT (11:47 UTC). Right now ACK is low IFR, wind from the north (010°) at 10 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

SIGMET E25E: thunderstorms (a convective SIGMET) up to 35,000 ft, moving from the southwest at 20 knots, until 4:55 am EDT (08:55 UTC). Near the route, 624 nm along the route.

as issued

WSUS31 KKCI 120655
MKCE WST 120655
CONVECTIVE SIGMET 25E
VALID UNTIL 0855Z
RI NY NJ PA DE MD AND MA RI NJ NY CT CSTL WTRS
FROM 30SSE PVD-60SSE ACK-110SSE HTO-40N SBY-30SSW ETX-30SSE PVD
AREA EMBD TS MOV FROM 24020KT. TOPS TO FL350.

AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist), from 2:00 am EDT (06:00 UTC). Over the whole route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist), from 2:00 am EDT (06:00 UTC). Over the route from 257 to 465 nm out.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft, from 2:00 am EDT (06:00 UTC). Over the route from 307 to 634 nm out.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 10,000 ft, from 2:00 am EDT (06:00 UTC). Over the last 119 nm of the route.
AIRMET TANGO 4W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground), from 2:00 am EDT (06:00 UTC). Over the last 40 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 IN2.

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

B738 at 1,700 ft, 12 nm southwest, 2:20 am EDT (06:20 UTC): overcast from 1,700 ft to 2,000 ft, remarks: during the descent. 59 nm along the route, 12 nm southwest of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0620/FL017/TP B738/SK OVC017-TOP020/RM DURD
```
Report
a routine report filed through TOL
Where
over KTOL
Time
06:20 UTC
Height
at 1,700 ft
Aircraft
B738
Sky
overcast from 1,700 ft, tops 2,000 ft
Remarks
during the descent
B738 at 1,800 ft, 12 nm southwest, 1:18 am EDT (05:18 UTC): overcast from 1,800 ft to 2,700 ft, remarks: during the climb. 59 nm along the route, 12 nm southwest of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0518/FL018/TP B738/SK OVC018-TOP027/RM DURC
```
Report
a routine report filed through TOL
Where
over KTOL
Time
05:18 UTC
Height
at 1,800 ft
Aircraft
B738
Sky
overcast from 1,800 ft, tops 2,700 ft
Remarks
during the climb
B738 at 1,300 ft, 12 nm southwest, 12:45 am EDT (04:45 UTC): overcast from 1,300 ft to 3,000 ft, remarks: during the descent. 59 nm along the route, 12 nm southwest of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0445/FL013/TP B738/SK OVC013-TOP030/RM DURD
```
Report
a routine report filed through TOL
Where
over KTOL
Time
04:45 UTC
Height
at 1,300 ft
Aircraft
B738
Sky
overcast from 1,300 ft, tops 3,000 ft
Remarks
during the descent
A333 descending, 27 nm north, 1:44 am EDT (05:44 UTC): a routine report with nothing remarked on. 79 nm along the route, 27 nm north of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0544/FLDURD/TP A333/SK TOPS 025
```
Report
a routine report filed through DTW
Where
over DTW
Time
05:44 UTC
Height
during the descent
Aircraft
A333
Sky
tops 2,500 ft
B739 descending, 27 nm north, 12:54 am EDT (04:54 UTC): a routine report with nothing remarked on. 79 nm along the route, 27 nm north of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0454/FLDURD/TP B739/SK BASES 011
```
Report
a routine report filed through DTW
Where
over DTW
Time
04:54 UTC
Height
during the descent
Aircraft
B739
Sky
bases 1,100 ft

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 (FWA, CLE, PSB, AVP, BDL, 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	260° at 2 kt	−2 kt		122 kt	5 h 31 min	9:10 am EDT (13:10 UTC)
5,500 ft	320° at 12 kt	−7 kt	13 °C	127 kt	5 h 18 min	8:57 am EDT (12:57 UTC)
7,500 ft	310° at 15 kt	−11 kt	11 °C	131 kt	5 h 08 min	8:47 am EDT (12:47 UTC)
9,500 ft	300° at 17 kt	−15 kt	7 °C	135 kt	4 h 59 min	8:38 am EDT (12:38 UTC)
11,500 ft	290° at 17 kt	−16 kt	4 °C	136 kt	4 h 57 min	8:36 am EDT (12:36 UTC)
13,500 ft	290° at 18 kt	−17 kt	0 °C	137 kt	4 h 55 min	8:34 am EDT (12:34 UTC)
15,500 ft	280° at 20 kt	−19 kt	-5 °C	139 kt	4 h 51 min	8:30 am EDT (12:30 UTC)
17,500 ft	280° at 22 kt	−21 kt	-9 °C	141 kt	4 h 46 min	8:25 am EDT (12:25 UTC)
18,000 ft FL180	280° at 23 kt	−21 kt	-10 °C	141 kt	4 h 46 min	8:25 am EDT (12:25 UTC)
24,000 ft FL240	270° at 25 kt	−24 kt	-21 °C	144 kt	4 h 40 min	8:19 am EDT (12:19 UTC)
30,000 ft FL300	270° at 38 kt	−36 kt	-35 °C	156 kt	4 h 19 min	7:58 am EDT (11:58 UTC)
34,000 ft FL340	260° at 46 kt	−43 kt	-42 °C	163 kt	4 h 08 min	7:47 am EDT (11:47 UTC)
39,000 ft FL390	270° at 44 kt	−42 kt	-50 °C	162 kt	4 h 09 min	7:48 am EDT (11:48 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
FWA	used from 0 nm out; 56 nm from the line	300/17	320/20 16°	330/20 10°	340/15 3°	310/27 -8°	320/37 -20°	330/52 -36°	330/65 -43°	330/60 -50°
CLE	used from 49 nm out; 72 nm from the line	340/7	010/16 13°	350/18 8°	350/20 3°	340/31 -10°	340/46 -21°	340/54 -37°	330/62 -44°	340/65 -49°
PSB	used from 247 nm out; 66 nm from the line		360/13 13°	330/14 7°	300/11 3°	290/12 -11°	240/23 -23°	270/25 -36°	250/34 -40°	250/45 -48°
AVP	used from 346 nm out; 51 nm from the line	150/5	350/13 12°	270/20 8°	260/17 4°	260/25 -11°	240/31 -22°	240/54 -35°	230/61 -41°	240/55 -49°
BDL	used from 495 nm out; 42 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°
ACK	used from 594 nm out; 54 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°

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
IN2 Jamestown, IN	departure	no report just now				965 ft
TOL Toledo, OH	59 nm out, 12 nm southwest of the line, tower	VFR Sky: scattered clouds at 1,300 feet	from the southwest (230°) at 3 knots	10+ mi	none	683 ft	07:12 UTC
CYPT Pelee Island,	109 nm out, 3 nm west of the line	no report just now				571 ft
CGF Cleveland, OH	158 nm out, 14 nm south of the line, tower	marginal VFR Sky: overcast at 3,000 feet	calm	10+ mi	3,000 ft	876 ft	02:46 UTC
ERI Erie, PA	218 nm out, 18 nm north of the line, tower	marginal VFR Sky: overcast at 3,000 feet	variable at 4 knots	10+ mi	3,000 ft	732 ft	00:51 UTC
BFD Bradford, PA	287 nm out, 2 nm north of the line	low IFR Sky: overcast at 200 feet	from the northwest (320°) at 5 knots	9 mi	200 ft	2,143 ft	07:22 UTC
CZG Endicott, NY	396 nm out, 24 nm north of the line	no report just now				832 ft
AVP Wilkes-Barre/Scranton, PA	416 nm out, 20 nm south of the line, tower	marginal VFR Sky: overcast at 1,500 feet	calm	10+ mi	1,500 ft	961 ft	07:10 UTC
OXC Oxford, CT	535 nm out, 2 nm south of the line, tower	IFR Sky: a broken layer at 800 feet, a broken layer at 1,500 feet, overcast at 2,400 feet	from the northeast (050°) at 10 knots, gusting to 16	10+ mi	800 ft	730 ft	07:35 UTC
GON Groton (New London), CT	584 nm out, 6 nm south of the line, tower	marginal VFR Sky: a few clouds at 1,100 feet, overcast at 1,900 feet	from the north (360°) at 11 knots	10+ mi	1,900 ft	9 ft	06:56 UTC
MVY Vineyard Haven, MA	643 nm out, 7 nm northeast of the line, tower	IFR Sky: overcast at 500 feet	from the north (010°) at 14 knots, gusting to 23	10+ mi	500 ft	66 ft	07:09 UTC
ACK Nantucket, MA	destination	low IFR Sky: overcast at 300 feet Weather: mist	from the north (010°) at 10 knots	1.5 mi	300 ft	46 ft	3:32 am EDT (07:32 UTC)

The highest airport on this list sits at 2,143 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, 7:47 am EDT (11:47 UTC)

Wind from the north-northeast at 13 knots, gusting to 18, visibility 2 miles, mist, overcast at 300 feet low IFR

The whole forecast for ACK

From Mon 2:00 am EDT (06:00 UTC): wind from the east at 16 knots, gusting to 23, visibility 3 miles, rain, mist, overcast at 300 feet
From Mon 5:00 am EDT (09:00 UTC): wind from the north-northeast at 13 knots, gusting to 18, visibility 2 miles, mist, overcast at 300 feet
From Mon 11:00 am EDT (15:00 UTC): wind from the north-northeast at 15 knots, gusting to 22, 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, visibility more than 6 miles, scattered clouds at 5,000 feet
From Mon 8:00 pm EDT (00:00 UTC): wind from the north at 3 knots, visibility more than 6 miles, scattered clouds at 5,000 feet

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

6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 6 nm from the route, 198 nm along the route · a VIP movement · today · ZOB
6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 6 nm from the route, 198 nm along the route · a VIP movement · today · ZOB
6/7153 North Sicuate, RI, Saturday, October 10, 2026 through Monday, October 12, 2026 UTC 22 nm from the route, 604 nm along the route · drones kept away from a public gathering · until 12 October · ZBW

Daylight

Sunset at IN2 7:03 pm EDT (23:03 UTC), at ACK 6:04 pm EDT (22:04 UTC) (civil twilight ends 6:32 pm EDT (22:32 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 central Great Lakes · 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: Snow Lake Seaplane Base, Nantucket Memorial.