// Station · 5m ago

K46U

Alpine Airport

CAT MVFR

WIND CALM

VIS 10+ SM

CEILING OVC at 1,000 ft

T/Td 4°C / 4°C

ALTIM 29.92 inHg

ELEV 5,634 FT

43.1819°N / 111.0387°W

LOCATION · Alpine, US

WIND

000°0 kt

K46U · 5,634 FT

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

METRIC

NOW · 12Z

+6H

+12H

+18H

WIND

CALM

VIS

10+ SM

CEILING

OVC010

LAYERS

OVC010

T / Td

4 / 4

ALTIM

29.92"

// Interpretation

MVFR — ceiling 1,000 ft. Winds calm, visibility better than 10 statute miles, overcast at 1,000 ft. Would drop to IFR below 1,000 ft ceiling or 3 SM visibility, or rise back to VFR above 3,000 ft and 5 SM.

Loading TAF forecast narrative…

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

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// Raw observation METAR string + decoded

METAR K46U 131215Z AUTO 00000KT 10SM OVC010 04/04 A2992 RMK A01

K46U · day 13 at 12:15 UTC · winds calm · visibility 10+ SM · overcast at 1,000 ft · temp 4°C / dewpoint 4°C · altimeter 29.92" Hg

// 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

13 HDG 130° —CALM —— 5,827'

31 HDG 310° —CALM —— 5,827'

Pattern altitude: 6,634 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 +0°C

5,600FT

-34 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV5,634 FT OAT+4°C ISA DELTA+0°C PRESSURE ALT5,631 FT

// Performance equivalent Operating here right now feels like operating at KLND (Hunt Field, Lander, elev 5,586 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+56%

-39%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+39%

-25%

Light jetCJ4, Phenom 300, M2

+22%

-17%

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 · 1 reported · highest to lowest

// Reported layers (highest → lowest)

OVC010

Overcast · base 1,000 ft AGL · 8 oktas

// Computed

CEILING1,000 ft AGL HIGHEST LAYER1,000 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL7,654 ft VFR MARGIN-2,000 ft

// Sun & Moon · times in Z · bar = local day (UTC-7)

13:36ZSUNRISE

19:11ZSOLAR NOON

00:46ZSUNSET

01:15ZCIVIL END

CURRENT12:20Z DAYLIGHT REMAINING12h 25m VFR NIGHT BEGINS01:15Z (12h 54m) DAY LENGTH11h 10m

Waxing Crescent

ILLUMINATION5% MOONRISE15:20Z MOONSET02:30Z FULL MOON IN13 days

// Nearest reporting stations

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

AIRSPACE

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