// Station · 18m ago
KMMH
Mammoth Yosemite Airport
CAT VFR
WIND CALM
VIS 10+ SM
CEILING CLR
T/Td 21°C / -2°C
ALTIM 30.31 inHg
ELEV 7,135 FT
37.6254°N / 118.8431°W
LOCATION · Mammoth Lakes, US
WIND
000°0 kt
KMMH · 7,135 FT
© OSM · CartoDB
// Current + 24h forecast · METAR loaded · TAF loading…
METRIC
NOW · 15Z
+6H
+12H
+18H
WIND
CALM
VIS
10+ SM
CEILING
CLR
LAYERS
—
T / Td
21 / -2
ALTIM
30.31"
// Interpretation
VFR with winds calm. 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.
Loading TAF forecast narrative…
// Want this glance-able on 10 airports? METAR Deck →// Raw observation METAR string + decoded
METAR KMMH 111555Z AUTO 00000KT 10SM CLR 21/M02 A3031 RMK AO2
KMMH · day 11 at 15:55 UTC · winds calm · visibility 10+ SM · temp 21°C / dewpoint -2°C · altimeter 30.31" Hg · automated station w/ precipitation discriminator
// Runway analysis · computed from current METAR wind
Wind CALM
ALL USABLE · WINDS CALM
WIND
000°calm
HEADWIND
CAUTION · HIGH XW
AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS
2 ends
09
HDG 090°
—CALM
——
7,000'
27
HDG 270°
—CALM
——
7,000'
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 +19°C
9,100FT
+1,965 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS
↘ -200 FT
24h AGO18h12h6hNOW
FIELD ELEV7,135 FT
OAT+21°C
ISA DELTA+19°C
PRESSURE ALT6,742 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
DANGEROUS
TAKEOFF ROLL
CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+91%
-64%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+64%
-41%
Light jetCJ4, Phenom 300, M2
+36%
-27%
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 · clear · no layers reported
// Sun & Moon · times in Z · bar = local day (UTC-8)
12:44ZSUNRISE
20:01ZSOLAR NOON
03:19ZSUNSET
03:50ZCIVIL END
CURRENT16:13Z
DAYLIGHT REMAINING11h 05m
VFR NIGHT BEGINS03:50Z (11h 36m)
DAY LENGTH14h 35m
Waning Crescent
ILLUMINATION11%
MOONRISE10:12Z
MOONSET00:47Z
FULL MOON IN18 days
// Nearest reporting stations · 5 shown · 100 NM (sparse area)
KBIH
VFR
Eastern Sierra Regional Airport · Bishop
- WIND
- CALM
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 27 NM SE
- AGE
- 17m ago
KHTH
VFR
Hawthorne Industrial Airport · Hawthorne
- WIND
- VRB / 3 kt
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 56 NM N
- AGE
- 18m ago
KO32
VFR
Reedley Municipal Airport · Reedley
- WIND
- 150° / 7 kt
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 64 NM SW
- AGE
- 18m ago
KFAT
VFR
Fresno Yosemite International Airport · Fresno
- WIND
- 150° / 5 kt
- VIS
- 10+ SM
- CEILING
- FEW200
- DIST
- 66 NM SW
- AGE
- 20m ago
KFCH
VFR
Fresno Chandler Executive Airport · Fresno
- WIND
- 080° / 4 kt
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 71 NM SW
- AGE
- 18m ago
// Area map · 80 NM radius · CartoDB Dark Matter + aeronautical overlay
© OpenStreetMap · CartoDB · OpenAIP
//
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