ATIS Alerts

Mammoth Yosemite Airport (KMMH) Aviation Weather, METAR, TAF & ATIS Alerts

Live aviation weather for Mammoth Yosemite Airport in Mammoth Lakes, CA, including METAR, TAF, flight category, wind, visibility, ceiling, altimeter, runway crosswinds, and Telegram airport alerts.

Mammoth Yosemite Airport (KMMH) is a regional airport serving Mammoth Lakes, CA at 7,135 ft. KMMH reports its own METAR and publishes a TAF, decoded live on this page as flight category, wind, visibility, ceiling and altimeter. Its 2 runways (09, 27), longest 7,000 ft, are checked against the current wind in the crosswind table below. Automated weather is broadcast on 118.05. Track KMMH in the ATIS Alerts Telegram bot to get a message when a new METAR changes the picture: flight category, wind, or ceiling past your selected minimums.

VFR
Observed 0655Z (11:55 PM PDT)live · refreshes every 60s
Wind
200° 7 kt
Visibility
10+ sm
Ceiling
Unlimited
Altimeter
30.18"
Temp / Dew
57°F / 14°C
dew 30°F / -1°C

Wind from the south-southwest (200°) at 7 kt, visibility 10+ statute miles, no cloud data, temperature 14°C (57°F), altimeter 30.18 inHg. Conditions are Visual Flight Rules (VFR).

Raw METAR
METAR KMMH 130655Z AUTO 20007KT 10SM CLR 14/M01 A3018 RMK AO2

What changed at KMMH?

Since the 0655Z (11:55 PM PDT) report, compared automatically against the latest METAR.

No significant changes since the 0655Z report, conditions are holding steady.

This is exactly what ATIS Alerts watches for you: get a Telegram message when KMMH's weather changes, free →

Current pilot readout for KMMH

KMMH is currently VFR with winds from 200° at 7 knots, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 09, about 7 knots. Density altitude is approximately 8,400 ft (field elevation 7,135 ft). Review the latest TAF below for forecast changes before departure.

⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →

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Staying over at KMMH

For pilots and crews overnighting at Mammoth Yosemite Airport (KMMH).

Nearby Pilot Hotel Deals

Well-reviewed places under $500 a night near KMMH (MMH); drag to explore or tap a pin for the rate.

Crew Rental Car Deals

Ask the FBO about a crew car first: many hand you keys for a couple of hours at no charge. For an overnight or a one-way, compare rental desks around Mammoth Lakes on one page.

Affiliate disclosure: ATIS Alerts earns a commission on hotel and rental car bookings made through this section, at no extra cost to you. Hotel rates come from Stay22's booking partners (Booking.com, Expedia, Hotels.com, Vrbo and others) and rental car prices from DiscoverCars.com and its rental partners, not from ATIS Alerts.

Runway wind check

Estimated head/tailwind and crosswind for each runway end from the current reported wind.

Use this section to quickly compare current wind alignment across available runways at KMMH. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.

RunwayHead / TailCrosswind
09FAV0 kt head7 kt right
270 kt head7 kt left

Open the crosswind calculator to try your own wind and runway numbers →

24-hour trend

Wind, ceiling and flight category over the last 24 hours.

Wind (kt)Gusts (kt)Bottom strip, flight category:VFRMVFRIFRLIFRNo report
0173507Z19Z07Z

Over the last 24 h: wind 37 kt, ceiling unlimitedunlimited.

KMMH weather radar

Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.

Live weather radar around Mammoth Yosemite Airport in Mammoth Lakes, CA: the NOAA/NWS NEXRAD composite updates about every five minutes, with NOAA lightning strike density overlaid. The loop plays the past 50 minutes, then continues into a future-radar forecast (+1 to +4 hours, NOAA HRRR model) so you can see where precipitation around KMMH is headed.

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Loading radar…

Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap

Forecast frames (amber label) are HRRR model guidance, not observed radar. Lightning strike density appears as a blue-white glow when strikes are detected in view. Radar and lightning coverage are limited in parts of Alaska, Hawaii, and offshore areas. Not for navigation.

Recent aviation weather trends at KMMH

From ATIS Alerts' hourly weather history.

Over the past 24 hours, KMMH reported mostly VFR across 70 observations, with 0 flight-category changes. The strongest gust reached 30 kt. Wind most often came from the W.

Last 24 hours
VFR 100%
Wind avg/max: 6/25 kt
Max gust: 30 kt
Lowest ceiling: -
Lowest vis: -
Prevailing wind: W
Category changes: 0
Last 7 days
VFR 100%
Wind avg/max: 6/25 kt
Max gust: 32 kt
Lowest ceiling: 9,000 ft
Lowest vis: 9 sm
Prevailing wind: W
Category changes: 0
Active Runway - past 30 days
27
63%
09
37%

TAF | Terminal Aerodrome Forecast

Issued 0526Z (10:26 PM PDT)

TAF KMMH 130526Z 1306/1406 25013G20KT P6SM SKC WS020/22040KT FM131000 27021G32KT P6SM FEW100 WS020/22030KT FM131500 26013G21KT P6SM SKC FM131800 27017G27KT P6SM FEW220

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Airport facts

Reference data from the OurAirports dataset.

Type
Regional airport
ICAO
KMMH
IATA
MMH
FAA LID
MMH
City
Mammoth Lakes
State
California
Country
United States
Elevation
7,135 ft
Coordinates
37.6254, -118.8431
Runways
2
Longest runway
7,000 ft
Weather reporting
Reports METAR
TAF
Published
AWOS/ASOS
118.05 MHz
Time zone
America/Los_Angeles
Next sunset
18h 51m

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Nearby airports

Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.

See all California airports →

KMMH weather: frequently asked

What runways are available at KMMH?+

KMMH has 2 runways: 09, 27; the longest is 7,000 ft. This page computes the live crosswind for each runway end from the current wind.

Does KMMH report its own weather?+

Yes. Mammoth Yosemite Airport has its own weather station and publishes METAR observations, which this page decodes live.

Does KMMH have a TAF?+

Yes. The TAF is shown on this page below the current conditions.

Does KMMH broadcast D-ATIS?+

No. KMMH does not broadcast D-ATIS. Alerts for KMMH from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR instead.

Pilot PIREPs for Mammoth Yosemite Airport (KMMH)

Community-submitted

Community-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.

Read recent community-submitted pilot notes for Mammoth Yosemite Airport, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.

⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.

No Pilot PIREPs have been submitted for KMMH yet. Recently flew here? Help the next pilot by leaving a quick airport note.

Pilot PIREPs are community pilot notes for situational awareness only, not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.

From the ATIS Alerts team

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⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

No D-ATIS at this airport, showing METAR.

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