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 50 min at the quickest height in today's winds (4,500 ft, a 3-knot headwind), arriving about 8:50 am EDT (12:50 UTC). Right now ACK is IFR, wind from the northeast (040°) at 12 knots; MSV is marginal VFR, wind from the west-northwest (300°) at 6 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 3W: moderate turbulence above 18,000 ft from 24,000 ft to 33,000 ft. Over the whole route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the last 10 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 ACK.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B738 at 2,000 ft, 26 nm north, 6:44 am EDT (10:44 UTC): a routine report with nothing remarked on. 117 nm along the route, 26 nm north of the line.
as filed, and in English
BDL UA /OV KBDL095005/TM 1044/FL020/TP B738/SK BASES 005 TOPS 019
- Report
- a routine report filed through BDL
- Where
- 5 nm east (095°) of KBDL
- Time
- 10:44 UTC
- Height
- at 2,000 ft
- Aircraft
- B738
- Sky
- bases 500 ft tops 1,900 ft
- B737 at 800 ft, 25 nm north, 5:58 am EDT (09:58 UTC): a broken layer above 800 ft, remarks: during the descent runway 6. 127 nm along the route, 25 nm north of the line.
as filed, and in English
BDL UA /OV BDL/TM 0958/FL008/TP B737/SK BKN008/RM DURD RY6
- Report
- a routine report filed through BDL
- Where
- over BDL
- Time
- 09:58 UTC
- Height
- at 800 ft
- Aircraft
- B737
- Sky
- a broken layer from 800 ft
- Remarks
- during the descent runway 6
- B737 climbing, 46 nm south, 6:05 am EDT (10:05 UTC): a routine report with nothing remarked on. 137 nm along the route, 46 nm south of the line.
as filed, and in English
ISP UA /OV ISP/TM 1005/FLDURC/TP B737/SK BASES 009
- Report
- a routine report filed through ISP
- Where
- over ISP
- Time
- 10:05 UTC
- Height
- during the climb
- Aircraft
- B737
- Sky
- bases 900 ft
Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 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 | 360° at 15 kt | +3 kt | 117 kt | 1 h 50 min | 8:50 am EDT (12:50 UTC) | |
| 6,500 ft | 340° at 14 kt | +7 kt | 11 °C | 113 kt | 1 h 54 min | 8:54 am EDT (12:54 UTC) |
| 8,500 ft | 310° at 12 kt | +10 kt | 8 °C | 110 kt | 1 h 57 min | 8:57 am EDT (12:57 UTC) |
| 10,500 ft | 300° at 15 kt | +14 kt | 5 °C | 106 kt | 2 h 02 min | 9:02 am EDT (13:02 UTC) |
| 12,500 ft | 290° at 19 kt | +18 kt | 2 °C | 102 kt | 2 h 06 min | 9:06 am EDT (13:06 UTC) |
| 14,500 ft | 280° at 21 kt | +21 kt | -2 °C | 99 kt | 2 h 10 min | 9:10 am EDT (13:10 UTC) |
| 16,500 ft | 280° at 24 kt | +23 kt | -7 °C | 97 kt | 2 h 13 min | 9:13 am EDT (13:13 UTC) |
| 18,000 ft FL180 | 270° at 26 kt | +25 kt | -10 °C | 95 kt | 2 h 16 min | 9:16 am EDT (13:16 UTC) |
| 24,000 ft FL240 | 250° at 35 kt | +32 kt | -22 °C | 88 kt | 2 h 27 min | 9:27 am EDT (13:27 UTC) |
| 30,000 ft FL300 | 250° at 51 kt | +44 kt | -37 °C | 76 kt | 2 h 50 min | 9:50 am EDT (13:50 UTC) |
| 34,000 ft FL340 | 250° at 63 kt | +54 kt | -42 °C | 66 kt | 3 h 15 min | 10:15 am EDT (14:15 UTC) |
| 39,000 ft FL390 | 250° at 62 kt | +54 kt | -51 °C | 66 kt | 3 h 15 min | 10:15 am EDT (14:15 UTC) |
Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 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 | 340/16 | 270/32 14° | 260/37 9° | 260/30 4° | 250/41 -9° | 250/49 -21° | 240/92 -34° | 240/107 -42° | 240/94 -52° |
| BDL | used from 49 nm out; 55 nm from the line | 020/15 | 010/19 10° | 340/10 7° | 300/17 3° | 280/23 -10° | 250/35 -22° | 250/44 -38° | 250/55 -42° | 250/57 -51° |
| AVP | used from 195 nm out; 56 nm from the line | 010/20 | 020/24 11° | 360/19 8° | 350/23 2° | 320/24 -11° | 330/25 -22° | 330/27 -37° | 310/28 -42° | 290/30 -50° |
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 500 feet | from the northeast (040°) at 12 knots | 9 mi | 500 ft | 46 ft | 6:53 am EDT (10:53 UTC) |
| MVY Vineyard Haven, MA | 29 nm out, 6 nm northeast of the line, tower | IFR Sky: overcast at 500 feet Weather: light rain, mist | from the north (010°) at 10 knots, gusting to 17 | 4 mi | 500 ft | 66 ft | 10:53 UTC |
| OQU North Kingstown, RI | 59 nm out, 13 nm north of the line, tower | reported, no category | from the north (360°) at 14 knots | 600 ft | 18 ft | 10:35 UTC | |
| GON Groton (New London), CT | 88 nm out, 8 nm south of the line, tower | IFR Sky: overcast at 800 feet | from the north-northeast (020°) at 11 knots | 10+ mi | 800 ft | 9 ft | 10:46 UTC |
| OXC Oxford, CT | 137 nm out, 6 nm southwest of the line, tower | low IFR Sky: overcast at 400 feet | from the north (010°) at 11 knots | 10+ mi | 400 ft | 730 ft | 10:56 UTC |
| POU Poughkeepsie, NY | 176 nm out, 2 nm east of the line, tower | IFR Sky: overcast at 700 feet | from the north (010°) at 3 knots | 10+ mi | 700 ft | 163 ft | 10:53 UTC |
| MSV Monticello, NY | destination | marginal VFR Sky: overcast at 2,600 feet | from the west-northwest (300°) at 6 knots | 10+ mi | 2,600 ft | 1,403 ft | 6:56 am EDT (10:56 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, 8:50 am EDT (12:50 UTC)
MSV has no terminal forecast; use the nearest airport that does.
The forecast for ACK, the departure
- From Mon 4:00 am EDT (08:00 UTC): wind from the north-northeast at 12 knots, gusting to 20, visibility 4 miles, rain, mist, overcast at 300 feet
- From Mon 6:00 am EDT (10:00 UTC): wind from the north-northeast at 13 knots, gusting to 18, visibility 4 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
- 6/7153 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)).
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
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.