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// KMMH · Mammoth Yosemite Airport · Mammoth Lakes

// Station · 37m ago

KMMH

Mammoth Yosemite Airport
CAT VFR
WIND 100° / 7 kt G14
VIS 10+ SM
CEILING CLR
T/Td 24°C / 2°C
ALTIM 30.42 inHg
ELEV 7,135 FT
37.6254°N / 118.8431°W
LOCATION · Mammoth Lakes, US
N
WIND
100°7 kt
KMMH · 7,135 FT
© OSM · CartoDB

// Current + 24h forecast · METAR loaded · TAF loading…

METRIC
NOW · 17Z
+6H
+12H
+18H
WIND
100°/7G14
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
—
 
 
 
T / Td
24 / 2
 
 
 
ALTIM
30.42"
 
 
 

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// Interpretation

VFR with light winds at 100°/7 kt, gusting 14. Visibility better than 10 statute miles and no reported cloud layers. Would shift to MVFR if the ceiling drops to 3,000 ft or visibility below 5 SM.

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SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR KMMH 251735Z AUTO 10007G14KT 060V130 10SM CLR 24/02 A3042 RMK AO2

KMMH · day 25 at 17:35 UTC · wind from 100° at 7 kt, gusts to 14 kt · visibility 10+ SM · temp 24°C / dewpoint 2°C · altimeter 30.42" Hg · automated station w/ precipitation discriminator

// Runway analysis · computed from current METAR wind

Wind 100° @ 7 ktG14
1 USABLE · 1 AVOID
N
WIND
100°7G14 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 1 usable
09★ HDG 090° H7 kt X1 kt RIGHT PRIMARY · 7,000'
TAILWIND ENDS · AVOID 1 ends
27 HDG 270° T7 kt X1 kt LEFT —
Pattern altitude: 8,135 ft MSL (1,000 ft AGL). Verify pattern direction and altitude with the chart supplement before flying. // On calm winds (<3 kt), all runways are usable — favor the longest or whatever the pattern calls for.

// Density altitude · ISA +22°C

9,300FT
+2,165 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS loading…
FIELD ELEV7,135 FT OAT+24°C ISA DELTA+22°C PRESSURE ALT6,633 FT
// Performance equivalent Operating here right now feels like operating at KTEX (Telluride Regional Airport, Telluride, elev 9,070 ft) on a standard ISA day.
// Aircraft performance impact SIGNIFICANT
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+93%
-65%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+65%
-42%
Light jetCJ4, Phenom 300, M2
+37%
-28%

Approximate using ~10% perf loss / 1,000 ft DA for normally aspirated, scaled by powerplant type. Verify with your aircraft's POH for accurate numbers — especially above 5,000 ft DA where these rules of thumb diverge. Severity rating assumes a standard altimeter setting (29.92" Hg / 1013 hPa); a non-standard setting shifts the effective altitude by roughly 1,000 ft per 1" Hg of deviation.

// Cloud layers · clear · no layers reported

FT 0 5k 10k 15k 20k 25k FRZ LVL · 19,256 FT KMMH ELEV · 7,135 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING— HIGHEST LAYER— TOTAL COVERAGEclear FREEZING LEVEL19,256 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-8)

13:21ZSUNRISE
19:58ZSOLAR NOON
02:36ZSUNSET
03:03ZCIVIL END
CURRENT18:12Z DAYLIGHT REMAINING8h 24m VFR NIGHT BEGINS03:03Z (8h 51m) DAY LENGTH13h 15m
Waxing Gibbous
ILLUMINATION94% MOONRISE23:27Z MOONSET12:43Z FULL MOON IN2 days

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// Area map · 60 NM radius · CartoDB Dark Matter + aeronautical overlay

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