Northeast Kingdom International to Plymouth Municipal EFK → PYM
190 nautical miles (219 statute miles) south on a straight line, true course 159°, about 176° magnetic at the departure end (variation 17W). At 120 knots that is 1 h 29 min at the quickest height in today's winds (9,500 ft, a 8-knot tailwind), arriving about 5:36 am EDT (09:36 UTC), after sunset at the destination. Right now EFK is marginal VFR, wind calm; PYM is IFR, wind from the northeast (040°) at 12 knots, gusting to 20. 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, fog). Over the whole route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 95 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 181 nm of the route.
- AIRMET ZULU 1C: moderate icing from 12,000 ft to 24,000 ft. Over the route from 48 to 124 nm out.
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 descending, 9 nm west, 2:21 am EDT (06:21 UTC): overcast above 40,000 ft. 124 nm along the route, 9 nm west of the line.
as filed, and in English
MHT UA /OV KMHT/TM 0621/FLDURD/TP B763/SK OVC004
- Report
- a routine report filed through MHT
- Where
- over KMHT
- Time
- 06:21 UTC
- Height
- during the descent
- Aircraft
- B763
- Sky
- overcast from 400 ft
- B763 descending, 9 nm west, 1:55 am EDT (05:55 UTC): a routine report with nothing remarked on. 124 nm along the route, 9 nm west of the line.
as filed, and in English
MHT UA /OV RWY 35/TM 0555/FLDURD/TP B763/SK 004-005 FT
- Report
- a routine report filed through MHT
- Where
- runway 35
- Time
- 05:55 UTC
- Height
- during the descent
- Aircraft
- B763
- Sky
- from 400 ft to 500 ft 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 2 forecast points nearest it (BML, BOS). 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 | 210° at 7 kt | +5 kt | 115 kt | 1 h 39 min | 5:46 am EDT (09:46 UTC) | |
| 5,500 ft | 230° at 12 kt | +5 kt | 115 kt | 1 h 39 min | 5:46 am EDT (09:46 UTC) | |
| 7,500 ft | 260° at 14 kt | −2 kt | 8 °C | 122 kt | 1 h 33 min | 5:40 am EDT (09:40 UTC) |
| 9,500 ft | 280° at 19 kt | −8 kt | 5 °C | 128 kt | 1 h 29 min | 5:36 am EDT (09:36 UTC) |
| 11,500 ft | 260° at 20 kt | −5 kt | 2 °C | 125 kt | 1 h 31 min | 5:38 am EDT (09:38 UTC) |
| 13,500 ft | 260° at 24 kt | −3 kt | -2 °C | 123 kt | 1 h 33 min | 5:40 am EDT (09:40 UTC) |
| 15,500 ft | 250° at 27 kt | −2 kt | -6 °C | 122 kt | 1 h 33 min | 5:40 am EDT (09:40 UTC) |
| 17,500 ft | 250° at 31 kt | −2 kt | -10 °C | 122 kt | 1 h 33 min | 5:40 am EDT (09:40 UTC) |
| 18,000 ft FL180 | 250° at 31 kt | −1 kt | -10 °C | 121 kt | 1 h 34 min | 5:41 am EDT (09:41 UTC) |
| 24,000 ft FL240 | 230° at 52 kt | +14 kt | -20 °C | 106 kt | 1 h 48 min | 5:55 am EDT (09:55 UTC) |
| 30,000 ft FL300 | 230° at 66 kt | +18 kt | -34 °C | 102 kt | 1 h 52 min | 5:59 am EDT (09:59 UTC) |
| 34,000 ft FL340 | 240° at 86 kt | +15 kt | -42 °C | 105 kt | 1 h 49 min | 5:56 am EDT (09:56 UTC) |
| 39,000 ft FL390 | 240° at 90 kt | +15 kt | -53 °C | 105 kt | 1 h 49 min | 5:56 am EDT (09:56 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BML | used from 0 nm out; 37 nm from the line | 260/22 | 300/13 8° | 280/13 4° | 260/13 0° | 260/16 -11° | 240/45 -21° | 240/59 -36° | 240/77 -44° | 240/83 -53° |
| BOS | used from 95 nm out; 42 nm from the line | 110/20 | 200/26 12° | 280/24 8° | 260/29 3° | 250/47 -10° | 230/59 -19° | 230/74 -33° | 240/95 -41° | 240/96 -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 |
|---|---|---|---|---|---|---|---|
| EFK Newport, VT | departure | marginal VFR Sky: overcast at 2,200 feet | calm | 10+ mi | 2,200 ft | 933 ft | 3:55 am EDT (07:55 UTC) |
| CDA Lyndonville, VT | 19 nm out, 3 nm southeast of the line | marginal VFR Sky: scattered clouds at 600 feet, overcast at 2,300 feet | calm | 10+ mi | 2,300 ft | 1,187 ft | 07:55 UTC |
| LCI Laconia, NH | 86 nm out, 5 nm east of the line | IFR Sky: a broken layer at 800 feet, a broken layer at 1,300 feet, overcast at 3,300 feet Weather: light rain | calm | 10+ mi | 800 ft | 545 ft | 07:56 UTC |
| MHT Manchester, NH | 124 nm out, 9 nm west of the line, tower | marginal VFR Sky: scattered clouds at 400 feet, overcast at 1,200 feet | from the north (350°) at 5 knots | 10+ mi | 1,200 ft | 266 ft | 07:53 UTC |
| BOS Boston, MA | 162 nm out, 3 nm west of the line, tower | IFR Sky: overcast at 700 feet | from the north-northeast (020°) at 10 knots | 10+ mi | 700 ft | 19 ft | 07:54 UTC |
| PYM Plymouth, MA | destination | IFR Sky: overcast at 500 feet Weather: mist | from the northeast (040°) at 12 knots, gusting to 20 | 2.5 mi | 500 ft | 148 ft | 3:52 am EDT (07:52 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 PYM when you get there the forecast at the estimated arrival, 5:36 am EDT (09:36 UTC)
PYM has no terminal forecast; use the nearest airport that does.
The forecast for EFK, the departure
- From Mon 2:00 am EDT (06:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, overcast at 3,500 feet
- From Mon 4:00 am EDT (08:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 1,700 feet
- From Mon 12:00 pm EDT (16:00 UTC): wind from the northwest at 6 knots, visibility more than 6 miles, a broken layer at 2,500 feet
- From Mon 5:00 pm EDT (21:00 UTC): wind from the north-northwest at 5 knots, visibility 5 miles, light rain showers, mist, overcast at 1,200 feet
- From Mon 8:00 pm EDT (00:00 UTC): wind light and variable, visibility 5 miles, mist, overcast at 1,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/8802 Foxborough, MA, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 18 nm from the route, 171 nm along the route · drones kept away from a public gathering · starts Saturday 17 October · ZBW
Daylight
Sunset at EFK 6:09 pm EDT (22:09 UTC), at PYM 6:06 pm EDT (22:06 UTC) (civil twilight ends 6:34 pm EDT (22:34 UTC)). At 120 knots the arrival at PYM is before sunrise there (6:51 am EDT (10:51 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: Northeast Kingdom International, Plymouth Municipal.