General Edward Lawrence Logan International to Morristown Municipal BOS → MMU
180 nautical miles (207 statute miles) southwest on a straight line, true course 240°, about 255° magnetic at the departure end (variation 15W). At 120 knots that is 1 h 35 min at the quickest height in today's winds (4,500 ft, a 6-knot headwind), arriving about 10:35 pm EDT (02:35 UTC), after sunset at the destination. Right now BOS is marginal VFR, wind from the east (080°) at 8 knots; MMU is IFR, wind from the north-northeast (030°) 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: 6 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 ZULU 1C: moderate icing up to 24,000 ft. Over the first 70 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 60 nm of the route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the whole route.
- AIRMET TANGO 2W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the last 0 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 BOS.
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 20:00–03:00 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 (BOS, BDL, JFK). 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 | 160° at 31 kt | +6 kt | 114 kt | 1 h 35 min | 10:35 pm EDT (02:35 UTC) | |
| 6,500 ft | 180° at 27 kt | +16 kt | 11 °C | 104 kt | 1 h 44 min | 10:44 pm EDT (02:44 UTC) |
| 8,500 ft | 220° at 23 kt | +22 kt | 9 °C | 98 kt | 1 h 50 min | 10:50 pm EDT (02:50 UTC) |
| 10,500 ft | 240° at 25 kt | +25 kt | 6 °C | 95 kt | 1 h 54 min | 10:54 pm EDT (02:54 UTC) |
| 12,500 ft | 250° at 29 kt | +29 kt | 2 °C | 91 kt | 1 h 59 min | 10:59 pm EDT (02:59 UTC) |
| 14,500 ft | 250° at 34 kt | +33 kt | -1 °C | 87 kt | 2 h 04 min | 11:04 pm EDT (03:04 UTC) |
| 16,500 ft | 250° at 39 kt | +38 kt | -5 °C | 82 kt | 2 h 12 min | 11:12 pm EDT (03:12 UTC) |
| 18,000 ft FL180 | 250° at 42 kt | +42 kt | -7 °C | 78 kt | 2 h 18 min | 11:18 pm EDT (03:18 UTC) |
| 24,000 ft FL240 | 240° at 50 kt | +50 kt | -17 °C | 70 kt | 2 h 34 min | 11:34 pm EDT (03:34 UTC) |
| 30,000 ft FL300 | 230° at 66 kt | +65 kt | -32 °C | 55 kt | 3 h 16 min | 12:16 am EDT (04:16 UTC) |
| 34,000 ft FL340 | 240° at 77 kt | +77 kt | -42 °C | 43 kt | 4 h 11 min | 1:11 am EDT (05:11 UTC) |
| 39,000 ft FL390 | 240° at 89 kt | +89 kt | -54 °C | 31 kt | 5 h 48 min | 2:48 am EDT (06:48 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BOS | used from 0 nm out; 25 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° |
| BDL | used from 50 nm out; 17 nm from the line | 140/28 | 180/29 10° | 220/38 8° | 250/30 3° | 250/40 -8° | 240/46 -18° | 240/58 -32° | 240/80 -41° | 240/89 -55° |
| JFK | used from 100 nm out; 43 nm from the line | 140/43 | 170/35 13° | 230/18 9° | 250/25 5° | 240/40 -7° | 230/50 -17° | 230/75 -31° | 230/78 -41° | 230/88 -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 |
|---|---|---|---|---|---|---|---|
| BOS Boston, MA | departure | marginal VFR Sky: a few clouds at 700 feet, a broken layer at 2,400 feet, overcast at 3,500 feet Weather: heavy rain, mist | from the east (080°) at 8 knots | 3 mi | 2,400 ft | 19 ft | 8:54 pm EDT (00:54 UTC) |
| ORH Worcester, MA | 40 nm out, 15 nm north of the line, tower | low IFR Sky: sky obscured at 200 feet Weather: heavy rain, mist | from the northeast (040°) at 7 knots | 0.75 mi | 200 ft | 1,009 ft | 00:54 UTC |
| HFD Hartford, CT | 80 nm out, 6 nm northwest of the line, tower | marginal VFR Sky: scattered clouds at 900 feet, overcast at 1,500 feet Weather: heavy rain, mist | from the north (010°) at 7 knots | 4 mi | 1,500 ft | 18 ft | 00:53 UTC |
| OXC Oxford, CT | 110 nm out, 4 nm north of the line, tower | low IFR Sky: overcast at 400 feet Weather: light rain | from the northeast (050°) at 13 knots, gusting to 20 | 9 mi | 400 ft | 730 ft | 00:56 UTC |
| HPN White Plains, NY | 140 nm out, 6 nm south of the line, tower | IFR Sky: overcast at 800 feet Weather: light rain | from the north-northeast (030°) at 8 knots, gusting to 15 | 2 mi | 800 ft | 439 ft | 00:56 UTC |
| MMU Morristown, NJ | destination | IFR Sky: overcast at 600 feet Weather: heavy rain | from the north-northeast (030°) at 6 knots | 4 mi | 600 ft | 186 ft | 8:45 pm EDT (00:45 UTC) |
The highest airport on this list sits at 1,009 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At MMU when you get there the forecast at the estimated arrival, 10:35 pm EDT (02:35 UTC)
MMU has no terminal forecast; use the nearest airport that does.
The forecast for BOS, the departure
- From Sun 8:00 pm EDT (00:00 UTC): wind from the southeast at 4 knots, visibility 4 miles, heavy rain, mist, scattered clouds at 2,200 feet, a broken layer at 2,800 feet and more above
- From Sun 10:00 pm EDT (02:00 UTC): wind from the east-southeast at 5 knots, visibility 3 miles, light rain, mist, overcast at 1,000 feet
- From Sun 11:00 pm EDT (03:00 UTC): wind from the east at 6 knots, visibility 2 miles, light rain, mist, overcast at 800 feet
- From Mon 2:00 am EDT (06:00 UTC): wind from the northeast at 8 knots, visibility 2 miles, light rain showers, mist, overcast at 300 feet
- From Mon 9:00 am EDT (13:00 UTC): wind from the north at 7 knots, visibility 3 miles, mist, a broken layer at 800 feet
- From Mon 1:00 pm EDT (17:00 UTC): wind from the north-northwest at 5 knots, visibility more than 6 miles, scattered clouds at 15,000 feet
- From Mon 11:00 pm EDT (03:00 UTC): wind from the north-northeast at 5 knots, visibility more than 6 miles, scattered clouds at 4,500 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 7 nm from the route, 20 nm along the route · drones kept away from a public gathering · starts Saturday 17 October · ZBW
- 6/7153 North Sicuate, RI, Saturday, October 10, 2026 through Monday, October 12, 2026 UTC 10 nm from the route, 40 nm along the route · drones kept away from a public gathering · until 12 October · ZBW
- 5/2811 NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local 12 nm from the route, 160 nm along the route · security · until 20 October · ZNY
Daylight
Sunset at BOS 6:07 pm EDT (22:07 UTC), at MMU 6:22 pm EDT (22:22 UTC) (civil twilight ends 6:49 pm EDT (22:49 UTC)). At 120 knots the arrival at MMU is after sunset there (6:23 pm EDT (22:23 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: General Edward Lawrence Logan International, Morristown Municipal.