// Station · 19m ago

KMMH

Mammoth Yosemite Airport

CAT VFR

WIND 310° / 14 kt

VIS 10+ SM

CEILING BKN at 6,500 ft

T/Td 6°C / -3°C

ALTIM 29.90 inHg

ELEV 7,135 FT

37.6254°N / 118.8431°W

LOCATION · Mammoth Lakes, US

WIND

310°14 kt

KMMH · 7,135 FT

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

METRIC

NOW · 01Z

+6H

+12H

+18H

WIND

310°/14

VIS

10+ SM

CEILING

BKN065

LAYERS

BKN065 BKN075

T / Td

6 / -3

ALTIM

29.90"

// Interpretation

VFR — ceiling 6,500 ft. Brisk winds at 310°/14 kt, visibility better than 10 statute miles, broken at 6,500 ft, and broken at 7,500 ft. Would shift to MVFR if the ceiling drops to 3,000 ft or visibility below 5 SM.

Loading TAF forecast narrative…

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

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// Raw observation METAR string + decoded

METAR KMMH 130135Z AUTO 31014KT 10SM BKN065 BKN075 06/M03 A2990 RMK AO2

KMMH · day 13 at 01:35 UTC · wind from 310° at 14 kt · visibility 10+ SM · broken layer at 6,500 ft · broken layer at 7,500 ft · temp 6°C / dewpoint -3°C · altimeter 29.90" Hg · automated station w/ precipitation discriminator

// Runway analysis · computed from current METAR wind

Wind 310° @ 14 kt

1 USABLE · 1 AVOID · 1 CAUTION

WIND

310°14 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

27★ HDG 270° H11 kt X9 kt RIGHT PRIMARY · 7,000'

TAILWIND ENDS · AVOID 1 ends

09 HDG 090° T11 kt X9 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 +5°C

7,800FT

+665 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV7,135 FT OAT+6°C ISA DELTA+5°C PRESSURE ALT7,153 FT

// Performance equivalent Operating here right now feels like operating at KBCE (Bryce Canyon Airport, Bryce Canyon, elev 7,590 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+78%

-55%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+55%

-35%

Light jetCJ4, Phenom 300, M2

+31%

-23%

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 · 2 reported · highest to lowest

// Reported layers (highest → lowest)

BKN075

Broken · base 7,500 ft AGL · ~5–7 oktas

BKN065

Broken · base 6,500 ft AGL · ~5–7 oktas

// Computed

CEILING6,500 ft AGL HIGHEST LAYER7,500 ft TOTAL COVERAGE~83% (mostly covered) FREEZING LEVEL10,165 ft VFR MARGIN+3,500 ft

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

14:01ZSUNRISE

19:42ZSOLAR NOON

01:24ZSUNSET

01:50ZCIVIL END

CURRENT01:54Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS01:50Z (past) DAY LENGTH11h 22m

Waxing Crescent

ILLUMINATION3% MOONRISE15:24Z MOONSET02:46Z FULL MOON IN13 days

// Nearest reporting stations

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

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