WxDecoder

KMWN METAR Mount Washington Observatory

New HampshireElevation 6,288 ftHeliport
CURRENT STATUS
UNKNOWNMore than 1 hour old
No ceiling, winds 22 kt.
FLIGHT CATEGORY
UNKNOWN
ceiling & visibility
WIND
290@22
steady
CEILING
None
no BKN/OVC layer
CURRENT METAR

Decoded observation

Observed 0052Z (8:52 PM local) · More than 1 hour old

KMWN is currently UNKNOWN. Winds are from the west at 22 knots. Visibility was not reported. There is no ceiling. The main issue is sustained wind 22 kt.

WIND
290° at 22 kt
Steady.
CEILING & SKY
FEW180 FEW220
FEW and SCT layers are not ceilings.
TEMP / DEWPOINT
5°C / -27°C
41°F / -17°F. 32°C spread.
WEATHER & HAZARDS
WIND
Sustained wind 22 kt.

Codes in this report: FEW RMK

Hover or tap any group for a plain-English explanation.

SUGGESTED RISK · TRAINING USE

Suggested risk level: Moderate

›Flight category could not be determined.
›Sustained wind 22 kt.
›No TAF available for this airport.

A suggested risk level for training and situational awareness only, not a go/no-go authority. Verify with official sources and apply your personal minimums.

FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

Current aviation conditions show flight category UNKNOWN, wind from 290° at 22 kt, ceiling none. Forecast suggests tonight partly cloudy, low near 38F, 0% chance of precipitation. Key risks: strong winds in the forecast.

PILOT WEATHER NOTES
Strong winds in the forecastWeather.gov
Tonight: winds up to 39 kt. Re-check crosswind components closer to departure.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Partly Cloudy 38 W 30 kt 39 kt 0% Strong winds in the forecast
Monday Slight Chance Rain Showers 42/19 W 43 kt 61 kt 18%
Tuesday Sunny 27/17 NW 39 kt 52 kt 0%
Wednesday Sunny 34/26 W 30 kt – 0%
Thursday Sunny 45/36 SW 22 kt – 25%
Friday Slight Chance Rain Showers then Partly Sunny 40/30 W 48 kt – 23%
Saturday Mostly Sunny 39/32 W 22 kt – 11%
Sunday Chance Rain Showers 42 SW 22 kt – 27%

Source: National Weather Service (office GYX). Forecast issued 0117Z.

Radar

Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.

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RUNWAYS & WIND
Crosswind calculator
No runway layout is available for KMWN. Enter a runway number or heading to estimate wind components.
FIELD CONDITIONS

Field elevation

Field elevation
6,288 ft MSL

Density and pressure altitude need a current temperature and altimeter from the METAR.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2145Z 5:45 PM
Sunrise
1113Z 7:13 AM
Loggable night
2215Z (6:15 PM local) → 1044Z (6:44 AM local)
end of evening to start of morning civil twilight
Position lights required
2145Z (5:45 PM local) → 1113Z (7:13 AM local)
sunset to sunrise (91.209)
Night passenger currency
2245Z (6:45 PM local) → 1013Z (6:13 AM local)
1 hr after sunset to 1 hr before sunrise (61.57(b))

FAA definitions, shown in Zulu with airport-local time. Verify for your operation.

AIRPORT INFORMATION

Facility & services

Mount Washington Observatory is in New Hampshire. Field elevation 6,288 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
TypeHeliport
CHARTS & AIRSPACE
ICAO / IATAKMWN
RegionNew Hampshire
CountryUnited States
Coordinates44.2703, -71.3033
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

KMWN traffic patterns

2026-06-13 to 2026-10-20, 3 days observed · data 2026-10-23

Low confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
0.5
AVG OPS/DAY
1.5
Activity trend over 2 days: falling, from 2 to 1 operations per dayOperations trend (2 days)

Busiest day: Sat · Busiest month: Jun

FLEET MIX
Other 100%

Mixed or uncategorized fleet.

TOP AIRCRAFT TYPES
›GLID (Other) · ~3 landings/mo
›AS29 (Other) · ~1 landings/mo
›EC35 (Helicopter) · ~0 landings/mo
LIKELY BASED AIRCRAFT
Low-confidence estimate

Aircraft likely based near this airport (estimate), mostly other aircraft.

›GLID (Other)

This is an estimate based on repeated flight patterns, not registration data. Do not rely on it to identify specific aircraft or owners.

Data limitations (4)
›ADS-B coverage is incomplete; counts are an observed lower bound, not official totals.
›Some aircraft do not transmit usable ADS-B and are not counted.
›Aircraft types and based estimates are inferred and may be wrong.
›This is not official ATC, FAA, or airport data.
NEARBY AIRPORTS

Weather reference stations

Current flight category at nearby reporting stations.

KHIE Mount Washington Regional Airport
12 NM NW
VFR
KBML Berlin Regional Airport
19 NM N
VFR
KIZG Eastern Slopes Regional Airport
23 NM SE
VFR
KCDA Caledonia County Airport
36 NM NW
VFR
KLCI Laconia Municipal Airport
42 NM S
VFR
KLEW Auburn Lewiston Municipal Airport
46 NM E
VFR
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗Official airport website
↗Wikipedia
↗KMWN on OurAirports
FREQUENTLY ASKED
Does KMWN have a METAR?
Yes. KMWN has a current METAR observation, decoded into plain English on this page.
Does KMWN have a TAF?
When KMWN issues a TAF, its decoded forecast timeline loads live on this page; otherwise use the nearest TAF-issuing field as a planning reference.
What is the field elevation at KMWN?
KMWN sits at 6,288 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for KMWN?
No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.
This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.