// Station · 5h 17m ago · STALE

RJCM

Memanbetsu Airport

CAT IFR

WIND VRB / 2 kt

VIS 2.0 SM

CEILING BKN at 500 ft

T/Td 16°C / 16°C

ALTIM 29.80 inHg

WX -SHRA BR

ELEV 135 FT

43.8806°N / 144.1640°E

LOCATION · Ōzora, JP

WIND

VRB2 kt

RJCM · 135 FT

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

METRIC

NOW · 11Z

+6H

+12H

+18H

WIND

VRB/2

VIS

2.0 SM

CEILING

BKN005

LAYERS

FEW001 SCT002 BKN005

T / Td

16 / 16

ALTIM

29.80"

// Interpretation

IFR conditions — ceiling 500 ft. Light winds at variable/2 kt, visibility 2.0 SM, a few at 100 ft, scattered at 200 ft, and broken at 500 ft. Reported weather: light rain showers and mist (-SHRA BR). Mist is water droplets thinning visibility to between 5/8 and 6 SM — the moist, lighter cousin of fog. Would deteriorate to LIFR below 500 ft ceiling or 1 SM, or improve to MVFR above 1,000 ft and 3 SM.

Loading TAF forecast narrative…

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

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// Raw observation METAR string + decoded

METAR RJCM 251100Z VRB02KT 3200 -SHRA BR FEW001 SCT002 BKN005 16/16 Q1009

RJCM · day 25 at 11:00 UTC · wind variable at 2 kt · visibility 2.0 SM · a few clouds at 100 ft · scattered layer at 200 ft · broken layer at 500 ft · temp 16°C / dewpoint 16°C · altimeter 29.80" Hg · weather: light rain showers and mist (-SHRA BR)

// Runway analysis · computed from current METAR wind

Wind VRB @ 2 kt

ALL USABLE · WINDS CALM

WIND

VRB2 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

18 HDG 180° —CALM —— 8,202'

36 HDG 360° —CALM —— 8,202'

Pattern altitude: 1,135 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

400FT

+265 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV135 FT OAT+16°C ISA DELTA+2°C PRESSURE ALT259 FT

// Performance equivalent Operating here right now feels like operating at RJCA (JGSDF Camp Asahikawa Airfield, Asahikawa, elev 377 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+4%

-3%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+3%

-2%

Light jetCJ4, Phenom 300, M2

+2%

-1%

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 · 3 reported · highest to lowest

// Reported layers (highest → lowest)

BKN005

Broken · base 500 ft AGL · ~5–7 oktas

SCT002

Scattered · base 200 ft AGL · ~3–4 oktas

FEW001

Few · base 100 ft AGL · ~1–2 oktas

// Computed

CEILING500 ft AGL HIGHEST LAYER500 ft TOTAL COVERAGE~91% (overcast) FREEZING LEVEL8,216 ft VFR MARGIN-2,500 ft

// Sun & Moon · times in Z · bar = local day (UTC+10)

19:40ZSUNRISE

02:26ZSOLAR NOON

09:13ZSUNSET

09:43ZCIVIL END

CURRENT16:17Z DAYLIGHT REMAINING16h 56m VFR NIGHT BEGINS09:43Z (17h 26m) DAY LENGTH13h 32m

Waxing Gibbous

ILLUMINATION94% MOONRISE05:43Z MOONSET19:15Z FULL MOON IN2 days

// Nearest reporting stations

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

AIRSPACE

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