// Station · 16m ago

RJCC

New Chitose Airport

CAT VFR

WIND 310° / 4 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 18°C / 17°C

ALTIM 29.77 inHg

ELEV 82 FT

42.7747°N / 141.6904°E

LOCATION · Sapporo, JP

WIND

310°4 kt

RJCC · 82 FT

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

METRIC

NOW · 16Z

+6H

+12H

+18H

WIND

310°/4

VIS

6+ SM

CEILING

—

LAYERS

FEW005 SCT025

T / Td

18 / 17

ALTIM

29.77"

// Interpretation

VFR with light winds at 310°/4 kt. Visibility 6+ SM and a few at 500 ft, and scattered at 2,500 ft. Would shift to MVFR if the ceiling drops to 3,000 ft or visibility below 5 SM.

Loading TAF forecast narrative…

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

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// Raw observation METAR string + decoded

METAR RJCC 251600Z 31004KT 9999 FEW005 SCT025 18/17 Q1008

RJCC · day 25 at 16:00 UTC · wind from 310° at 4 kt · visibility 6+ SM · a few clouds at 500 ft · scattered layer at 2,500 ft · temp 18°C / dewpoint 17°C · altimeter 29.77" Hg

// Runway analysis · computed from current METAR wind

Wind 310° @ 4 kt

ALL USABLE · WINDS CALM

WIND

310°4 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 4 ends

01L HDG 010° —CALM —— 9,843'

19R HDG 190° —CALM —— 9,843'

01R HDG 010° —CALM —— 9,843'

19L HDG 190° —CALM —— 9,843'

Pattern altitude: 1,082 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 +3°C

700FT

+618 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV82 FT OAT+18°C ISA DELTA+3°C PRESSURE ALT236 FT

// Performance equivalent Operating here right now feels like operating at RJEC (Asahikawa Airport, Higashikagura, elev 721 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+7%

-5%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+5%

-3%

Light jetCJ4, Phenom 300, M2

+3%

-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 · 2 reported · highest to lowest

// Reported layers (highest → lowest)

SCT025

Scattered · base 2,500 ft AGL · ~3–4 oktas

FEW005

Few · base 500 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER2,500 ft TOTAL COVERAGE~48% (mixed) FREEZING LEVEL9,173 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+9)

19:52ZSUNRISE

02:36ZSOLAR NOON

09:21ZSUNSET

09:50ZCIVIL END

CURRENT16:16Z DAYLIGHT REMAINING17h 04m VFR NIGHT BEGINS09:50Z (17h 34m) DAY LENGTH13h 29m

Waxing Gibbous

ILLUMINATION94% MOONRISE05:54Z MOONSET19:23Z FULL MOON IN2 days

// Nearest reporting stations

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

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