// Station · 5h 24m ago · STALE

RJCN

Nakashibetsu Airport

CAT LIFR

WIND 050° / 4 kt

VIS 3.1 SM

CEILING BKN at 300 ft

T/Td 16°C / 15°C

ALTIM 29.80 inHg

WX BR

ELEV 234 FT

43.5775°N / 144.9600°E

LOCATION · Nakashibetsu, JP

WIND

050°4 kt

RJCN · 234 FT

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

METRIC

NOW · 09Z

+6H

+12H

+18H

WIND

050°/4

VIS

3.1 SM

CEILING

BKN003

LAYERS

FEW002 BKN003 BKN004

T / Td

16 / 15

ALTIM

29.80"

// Interpretation

LIFR — ceiling 300 ft. Light winds at 050°/4 kt, visibility 3.1 SM, a few at 200 ft, broken at 300 ft, and broken at 400 ft. Reported weather: BR. Reported weather: BR. LIFR is the lowest standard category. Would improve to IFR above 500 ft and 1 SM.

Loading TAF forecast narrative…

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

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// Raw observation METAR string + decoded

METAR RJCN 110900Z 05004KT 5000 BR FEW002 BKN003 BKN004 16/15 Q1009

RJCN · day 11 at 09:00 UTC · wind from 050° at 4 kt · visibility 3.1 SM · a few clouds at 200 ft · broken layer at 300 ft · broken layer at 400 ft · temp 16°C / dewpoint 15°C · altimeter 29.80" Hg · weather: BR

// Runway analysis · computed from current METAR wind

Wind 050° @ 4 kt

ALL USABLE · WINDS CALM

WIND

050°4 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

08 HDG 080° —CALM —— 6,560'

26 HDG 260° —CALM —— 6,560'

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 ↘ -600 FT

24h AGO18h12h6hNOW

FIELD ELEV234 FT OAT+16°C ISA DELTA+2°C PRESSURE ALT358 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.

// Cloud layers · 3 reported · highest to lowest

// Reported layers (highest → lowest)

BKN004

Broken · base 400 ft AGL · ~5–7 oktas

BKN003

Broken · base 300 ft AGL · ~5–7 oktas

FEW002

Few · base 200 ft AGL · ~1–2 oktas

// Computed

CEILING300 ft AGL HIGHEST LAYER400 ft TOTAL COVERAGE~91% (overcast) FREEZING LEVEL8,315 ft VFR MARGIN-2,700 ft

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

18:50ZSUNRISE

02:26ZSOLAR NOON

10:02ZSUNSET

10:37ZCIVIL END

CURRENT14:24Z DAYLIGHT REMAINING19h 38m VFR NIGHT BEGINS10:37Z (20h 13m) DAY LENGTH15h 12m

Waning Crescent

ILLUMINATION11% MOONRISE16:15Z MOONSET07:27Z FULL MOON IN18 days

// Nearest reporting stations · 1 shown · 60 NM radius

RJCK

LIFR → MVFR 12Z

Kushiro Airport · Kushiro

WIND: VRB / 2 kt
VIS: 1.1 SM
CEILING: BKN001
DIST: 46 NM SW
AGE: 24m ago

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

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