// Station · 9h 14m ago · STALE · HARD STALE

RJCN

Nakashibetsu Airport

CAT IFR

WIND 040° / 5 kt

VIS 3.1 SM

CEILING BKN at 600 ft

T/Td 16°C / 16°C

ALTIM 29.74 inHg

WX -SHRA BR

ELEV 234 FT

43.5775°N / 144.9600°E

LOCATION · Nakashibetsu, JP

WIND

040°5 kt

RJCN · 234 FT

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

METRIC

NOW · 09Z

+6H

+12H

+18H

WIND

040°/5

VIS

3.1 SM

CEILING

BKN006

LAYERS

FEW003 SCT004 BKN006

T / Td

16 / 16

ALTIM

29.74"

// Interpretation

IFR conditions — ceiling 600 ft. Light winds at 040°/5 kt, visibility 3.1 SM, a few at 300 ft, scattered at 400 ft, and broken at 600 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 RJCN 250900Z 04005KT 5000 -SHRA BR FEW003 SCT004 BKN006 16/16 Q1007

RJCN · day 25 at 09:00 UTC · wind from 040° at 5 kt · visibility 3.1 SM · a few clouds at 300 ft · scattered layer at 400 ft · broken layer at 600 ft · temp 16°C / dewpoint 16°C · altimeter 29.74" Hg · weather: light rain showers and mist (-SHRA BR)

// Runway analysis · computed from current METAR wind

Wind 040° @ 5 kt

1 USABLE · 1 AVOID

WIND

040°5 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

08★ HDG 080° H4 kt X3 kt LEFT PRIMARY · 6,560'

TAILWIND ENDS · AVOID 1 ends

26 HDG 260° T4 kt X3 kt RIGHT —

Pattern altitude: 1,234 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

600FT

+366 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV234 FT OAT+16°C ISA DELTA+2°C PRESSURE ALT417 FT

// Performance equivalent Operating here right now feels like operating at RJCB (Tokachi-Obihiro Airport, Obihiro, elev 505 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+6%

-4%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+4%

-3%

Light jetCJ4, Phenom 300, M2

+2%

-2%

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)

BKN006

Broken · base 600 ft AGL · ~5–7 oktas

SCT004

Scattered · base 400 ft AGL · ~3–4 oktas

FEW003

Few · base 300 ft AGL · ~1–2 oktas

// Computed

CEILING600 ft AGL HIGHEST LAYER600 ft TOTAL COVERAGE~91% (overcast) FREEZING LEVEL8,315 ft VFR MARGIN-2,400 ft

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

19:37ZSUNRISE

02:23ZSOLAR NOON

09:09ZSUNSET

09:39ZCIVIL END

CURRENT18:14Z DAYLIGHT REMAINING14h 55m VFR NIGHT BEGINS09:39Z (15h 25m) DAY LENGTH13h 31m

Waxing Gibbous

ILLUMINATION94% MOONRISE05:44Z MOONSET19:15Z FULL MOON IN2 days

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

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