Morristown Municipal to Adirondack Regional MMU → SLK
216 nautical miles (248 statute miles) north on a straight line, true course 002°, about 015° magnetic at the departure end (variation 13W). At 120 knots that is 1 h 41 min at the quickest height in today's winds (39,000 ft, a 8-knot tailwind), arriving about 8:38 am EDT (12:38 UTC). Right now MMU is marginal VFR, wind from the north (350°) at 3 knots; SLK 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: 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 first 176 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the last 157 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 MMU.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- A320 climbing, 35 nm southeast, 6:42 am EDT (10:42 UTC): a routine report with nothing remarked on. At the departure end, 35 nm southeast of the line.
as filed, and in English
JFK UA /OV JFK150005/TM 1042/FLDURC/TP A320/SK 010-TOP024
- Report
- a routine report filed through JFK
- Where
- 5 nm southeast (150°) of JFK
- Time
- 10:42 UTC
- Height
- during the climb
- Aircraft
- A320
- Sky
- 010-TOP024
- MULT at 36,000 ft, 42 nm east, 6:34 am EDT (10:34 UTC): light turbulence from 23,000 ft to 32,000 ft. 137 nm along the route, 42 nm east of the line.
as filed, and in English
ALB UA /OV CAM/TM 1034/FL360/TP MULT/TB LGT 320-230
- Report
- a routine report filed through ALB
- Where
- over CAM
- Time
- 10:34 UTC
- Height
- at 36,000 ft
- Aircraft
- MULT
- Turbulence
- light from 32,000 ft to 23,000 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 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 (JFK, ALB). 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 | 350° at 21 kt | +20 kt | 100 kt | 2 h 10 min | 9:07 am EDT (13:07 UTC) | |
| 5,500 ft | 340° at 17 kt | +15 kt | 105 kt | 2 h 03 min | 9:00 am EDT (13:00 UTC) | |
| 7,500 ft | 330° at 15 kt | +12 kt | 8 °C | 108 kt | 2 h | 8:57 am EDT (12:57 UTC) |
| 9,500 ft | 320° at 15 kt | +11 kt | 6 °C | 109 kt | 1 h 59 min | 8:56 am EDT (12:56 UTC) |
| 11,500 ft | 330° at 15 kt | +12 kt | 3 °C | 108 kt | 2 h | 8:57 am EDT (12:57 UTC) |
| 13,500 ft | 330° at 16 kt | +13 kt | -1 °C | 107 kt | 2 h 01 min | 8:58 am EDT (12:58 UTC) |
| 15,500 ft | 320° at 17 kt | +13 kt | -6 °C | 107 kt | 2 h 01 min | 8:58 am EDT (12:58 UTC) |
| 17,500 ft | 320° at 18 kt | +13 kt | -10 °C | 107 kt | 2 h 01 min | 8:58 am EDT (12:58 UTC) |
| 18,000 ft FL180 | 320° at 18 kt | +14 kt | -11 °C | 106 kt | 2 h 02 min | 8:59 am EDT (12:59 UTC) |
| 24,000 ft FL240 | 300° at 18 kt | +9 kt | -23 °C | 111 kt | 1 h 57 min | 8:54 am EDT (12:54 UTC) |
| 30,000 ft FL300 | 290° at 23 kt | +9 kt | -38 °C | 111 kt | 1 h 57 min | 8:54 am EDT (12:54 UTC) |
| 34,000 ft FL340 | 270° at 33 kt | −3 kt | -43 °C | 123 kt | 1 h 45 min | 8:42 am EDT (12:42 UTC) |
| 39,000 ft FL390 | 260° at 42 kt | −8 kt | -51 °C | 128 kt | 1 h 41 min | 8:38 am EDT (12:38 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| JFK | used from 0 nm out; 44 nm from the line | 020/25 | 290/9 12° | 300/12 7° | 320/14 3° | 290/17 -10° | 240/27 -21° | 240/44 -36° | 240/53 -41° | 240/51 -50° |
| ALB | used from 49 nm out; 50 nm from the line | 340/22 | 340/19 9° | 320/16 7° | 330/16 2° | 330/19 -11° | 320/21 -23° | 320/25 -39° | 280/30 -44° | 270/41 -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 |
|---|---|---|---|---|---|---|---|
| MMU Morristown, NJ | departure | marginal VFR Sky: overcast at 1,300 feet | from the north (350°) at 3 knots | 10+ mi | 1,300 ft | 186 ft | 6:35 am EDT (10:35 UTC) |
| SWF New York, NY | 39 nm out, 13 nm east of the line, tower | low IFR Sky: overcast at 400 feet | from the north-northeast (020°) at 7 knots | 7 mi | 400 ft | 490 ft | 09:45 UTC |
| POU Poughkeepsie, NY | 49 nm out, 22 nm east of the line, tower | IFR Sky: overcast at 700 feet | from the north (360°) at 4 knots | 10+ mi | 700 ft | 163 ft | 09:53 UTC |
| SCH Schenectady, NY | 127 nm out, 17 nm east of the line, tower | marginal VFR Sky: a broken layer at 1,100 feet, overcast at 2,000 feet Weather: rain | from the northeast (040°) at 4 knots | 7 mi | 1,100 ft | 377 ft | 00:51 UTC |
| SLK Saranac Lake, NY | destination | low IFR Sky: overcast at 300 feet Weather: mist | variable at 3 knots | 3 mi | 300 ft | 1,662 ft | 6:31 am EDT (10:31 UTC) |
The highest airport on this list sits at 1,662 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SLK when you get there the forecast at the estimated arrival, 8:38 am EDT (12:38 UTC)
Wind calm, visibility 6 miles, light rain, mist, a broken layer at 200 feet, overcast at 2,000 feet low IFR
At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): visibility 2 miles, mist IFR
The whole forecast for SLK
- From Mon 5:00 am EDT (09:00 UTC): wind calm, visibility 6 miles, light rain, mist, a broken layer at 200 feet, overcast at 2,000 feet
- At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): visibility 2 miles, mist
- From Mon 9:00 am EDT (13:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 800 feet
- From Mon 4:00 pm EDT (20:00 UTC): wind from the west at 5 knots, visibility 5 miles, mist, overcast at 1,100 feet
Temporary flight restrictions on the line or within 25 nm of it
- 5/2811 NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local 19 nm from the route, at the departure end · security · until 20 October · ZNY
Daylight
Sunset at MMU 6:22 pm EDT (22:22 UTC), at SLK 6:18 pm EDT (22:18 UTC) (civil twilight ends 6:47 pm EDT (22:47 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: Morristown Municipal, Adirondack Regional.