// Station · 14m ago

KMMH

Mammoth Yosemite Airport

CAT VFR

WIND 200° / 14 kt G24

VIS 10+ SM

CEILING BKN at 5,500 ft

T/Td 2°C / -10°C

ALTIM 29.70 inHg

ELEV 7,135 FT

37.6254°N / 118.8431°W

LOCATION · Mammoth Lakes, US

WIND

200°14 kt

KMMH · 7,135 FT

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

METRIC

NOW · 10Z

+6H

+12H

+18H

WIND

200°/14G24

VIS

10+ SM

CEILING

BKN055

LAYERS

BKN055 OVC085

T / Td

2 / -10

ALTIM

29.70"

// Interpretation

VFR — ceiling 5,500 ft. Brisk winds at 200°/14 kt, gusting 24, visibility better than 10 statute miles, broken at 5,500 ft, and overcast at 8,500 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 271035Z AUTO 20014G24KT 10SM BKN055 OVC085 02/M10 A2970 RMK AO2

KMMH · day 27 at 10:35 UTC · wind from 200° at 14 kt, gusts to 24 kt · visibility 10+ SM · broken layer at 5,500 ft · overcast at 8,500 ft · temp 2°C / dewpoint -10°C · altimeter 29.70" Hg · automated station w/ precipitation discriminator

// Runway analysis · computed from current METAR wind

Wind 200° @ 14 ktG24

1 USABLE · 1 AVOID · 1 CAUTION

WIND

200°14G24 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

27★ HDG 270° H5 kt X13 kt LEFT PRIMARY · 7,000'

TAILWIND ENDS · AVOID 1 ends

09 HDG 090° T5 kt X13 kt RIGHT —

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 +2°C

7,500FT

+365 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS ↘ -800 FT

24h AGO18h12h6hNOW

FIELD ELEV7,135 FT OAT+2°C ISA DELTA+2°C PRESSURE ALT7,354 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 DANGEROUS

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+75%

-53%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+53%

-34%

Light jetCJ4, Phenom 300, M2

+30%

-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.

// Cloud layers · 2 reported · highest to lowest

// Reported layers (highest → lowest)

OVC085

Overcast · base 8,500 ft AGL · 8 oktas

BKN055

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

// Computed

CEILING5,500 ft AGL HIGHEST LAYER8,500 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL8,145 ft VFR MARGIN+2,500 ft

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

12:39ZSUNRISE

19:54ZSOLAR NOON

03:08ZSUNSET

03:39ZCIVIL END

CURRENT10:49Z DAYLIGHT REMAINING16h 19m VFR NIGHT BEGINS03:39Z (16h 49m) DAY LENGTH14h 29m

Waxing Gibbous

ILLUMINATION83% MOONRISE21:21Z MOONSET11:51Z FULL MOON IN4 days

// Nearest reporting stations · 5 shown · 100 NM (sparse area)

KBIH

VFR

Eastern Sierra Regional Airport · Bishop

WIND: 340° / 12 kt
VIS: 10+ SM
CEILING: BKN110
DIST: 27 NM SE
AGE: 53m ago

KFAT

VFR

Fresno Yosemite International Airport · Fresno

WIND: 320° / 7 kt
VIS: 10+ SM
CEILING: BKN095
DIST: 66 NM SW
AGE: 56m ago

KMCE

VFR

Merced Regional Macready Field · Merced

WIND: 260° / 3 kt
VIS: 10+ SM
CEILING: CLR
DIST: 82 NM W
AGE: 56m ago

KVIS

VFR

Visalia Municipal Airport · Visalia

WIND: 300° / 6 kt
VIS: 10+ SM
CEILING: BKN080
DIST: 83 NM S
AGE: 53m ago

KTPH

MVFR → VFR 11Z

Tonopah Airport · Tonopah

WIND: 340° / 8 kt
VIS: 10+ SM
CEILING: BKN013
DIST: 87 NM E
AGE: 18m ago

// Area map · 100 NM radius · CartoDB Dark Matter + aeronautical overlay

AIRSPACE

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