Groton-New London Airport to Portland International Jetport GON → PWM
159 nautical miles (183 statute miles) northeast on a straight line, true course 028°, about 042° magnetic at the departure end (variation 14W). At 120 knots that is 56 min at the quickest height in today's winds (34,000 ft, a 50-knot tailwind), arriving about 10:55 am EDT (14:55 UTC). Right now GON is VFR, wind from the north (360°) at 13 knots, gusting to 18; PWM is low IFR, wind variable at 3 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
- 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 first 79 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 40,000 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 GON.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
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 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 (BDL, BOS, PWM). 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 | 360° at 11 kt | +9 kt | 111 kt | 1 h 26 min | 11:25 am EDT (15:25 UTC) | |
| 5,500 ft | 350° at 12 kt | +9 kt | 111 kt | 1 h 26 min | 11:25 am EDT (15:25 UTC) | |
| 7,500 ft | 340° at 13 kt | +8 kt | 7 °C | 112 kt | 1 h 25 min | 11:24 am EDT (15:24 UTC) |
| 9,500 ft | 320° at 14 kt | +6 kt | 5 °C | 114 kt | 1 h 24 min | 11:23 am EDT (15:23 UTC) |
| 11,500 ft | 300° at 18 kt | +2 kt | 3 °C | 118 kt | 1 h 21 min | 11:20 am EDT (15:20 UTC) |
| 13,500 ft | 290° at 21 kt | −1 kt | -1 °C | 121 kt | 1 h 19 min | 11:18 am EDT (15:18 UTC) |
| 15,500 ft | 290° at 23 kt | −4 kt | -5 °C | 124 kt | 1 h 17 min | 11:16 am EDT (15:16 UTC) |
| 17,500 ft | 280° at 26 kt | −7 kt | -9 °C | 127 kt | 1 h 15 min | 11:14 am EDT (15:14 UTC) |
| 18,000 ft FL180 | 280° at 27 kt | −7 kt | -10 °C | 127 kt | 1 h 15 min | 11:14 am EDT (15:14 UTC) |
| 24,000 ft FL240 | 270° at 34 kt | −18 kt | -22 °C | 138 kt | 1 h 09 min | 11:08 am EDT (15:08 UTC) |
| 30,000 ft FL300 | 260° at 48 kt | −32 kt | -39 °C | 152 kt | 1 h 03 min | 11:02 am EDT (15:02 UTC) |
| 34,000 ft FL340 | 250° at 63 kt | −50 kt | -43 °C | 170 kt | 56 min | 10:55 am EDT (14:55 UTC) |
| 39,000 ft FL390 | 250° at 66 kt | −50 kt | -51 °C | 170 kt | 56 min | 10:55 am EDT (14:55 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BDL | used from 0 nm out; 43 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° |
| BOS | used from 50 nm out; 11 nm from the line | 020/10 | 360/20 10° | 340/19 7° | 290/21 2° | 270/35 -9° | 260/42 -22° | 250/55 -38° | 240/75 -43° | 250/72 -51° |
| PWM | used from 99 nm out; 35 nm from the line | 320/11 | 260/11 8° | 310/14 5° | 310/19 1° | 300/26 -11° | 290/31 -22° | 270/48 -40° | 250/60 -43° | 250/69 -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 |
|---|---|---|---|---|---|---|---|
| GON Groton (New London), CT | departure | VFR Sky: a few clouds at 1,000 feet | from the north (360°) at 13 knots, gusting to 18 | 10+ mi | none | 9 ft | 9:56 am EDT (13:56 UTC) |
| PVD Providence, RI | 30 nm out, 14 nm east of the line, tower | IFR Sky: overcast at 800 feet | from the north (010°) at 11 knots | 10+ mi | 800 ft | 54 ft | 13:51 UTC |
| BED Bedford, MA | 79 nm out, 4 nm west of the line, tower | IFR Sky: overcast at 700 feet | calm | 10+ mi | 700 ft | 132 ft | 13:51 UTC |
| PSM Portsmouth, NH | 119 nm out, 3 nm west of the line, tower | VFR Sky: a few clouds at 1,000 feet, a few clouds at 3,000 feet, scattered clouds at 6,000 feet, a broken layer at 20,000 feet | calm | 10+ mi | 20,000 ft | 100 ft | 12:55 UTC |
| PWM Portland, ME | destination | low IFR Sky: a broken layer at 400 feet | variable at 3 knots | 10+ mi | 400 ft | 75 ft | 9:51 am EDT (13:51 UTC) |
The highest airport on this list sits at 132 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At PWM when you get there the forecast at the estimated arrival, 10:55 am EDT (14:55 UTC)
Wind from the west-northwest at 7 knots, visibility more than 6 miles, a few clouds at 25,000 feet VFR
The whole forecast for PWM
- From Mon 8:00 am EDT (12:00 UTC): wind from the north-northwest at 3 knots, visibility more than 6 miles, a broken layer at 500 feet
- From Mon 10:30 am EDT (14:30 UTC): wind from the west-northwest at 7 knots, visibility more than 6 miles, a few clouds at 25,000 feet
- From Mon 10:00 pm EDT (02:00 UTC): wind from the north-northeast at 12 knots, gusting to 22, visibility 6 miles, mist, a broken layer at 2,500 feet
The forecast for GON, the departure
- From Mon 8:00 am EDT (12:00 UTC): wind from the north-northeast at 14 knots, visibility 6 miles, mist, showers nearby, scattered clouds at 400 feet, overcast at 900 feet
- From Mon 9:00 am EDT (13:00 UTC): wind from the north at 11 knots, visibility more than 6 miles, overcast at 1,000 feet
- From Mon 11:00 am EDT (15:00 UTC): wind from the north at 8 knots, visibility more than 6 miles, a broken layer at 2,000 feet
- From Mon 3:00 pm EDT (19:00 UTC): wind from the northwest at 7 knots, visibility more than 6 miles, scattered clouds at 2,000 feet, a broken layer at 5,000 feet
- From Mon 10:00 pm EDT (02:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 5,000 feet, a few clouds at 15,000 feet
- From Tue 4:00 am EDT (08:00 UTC): wind from the northeast at 3 knots, visibility more than 6 miles, a broken layer at 1,500 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 1 nm from the route, 40 nm along the route · drones kept away from a public gathering · until 12 October · ZBW
- 6/8802 Foxborough, MA, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 8 nm from the route, 60 nm along the route · drones kept away from a public gathering · starts Saturday 17 October · ZBW
Daylight
Sunset at GON 6:12 pm EDT (22:12 UTC), at PWM 6:03 pm EDT (22:03 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
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: Groton-New London Airport, Portland International Jetport.