// Station · 5h 19m ago · STALE

RJCO

Sapporo Okadama Airport

CAT MVFR

WIND 330° / 7 kt

VIS 6+ SM

CEILING BKN at 2,000 ft

T/Td 22°C / 19°C

ALTIM 29.74 inHg

ELEV 25 FT

43.1174°N / 141.3813°E

LOCATION · Sapporo, JP

WIND

330°7 kt

RJCO · 25 FT

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

METRIC

NOW · 11Z

+6H

+12H

+18H

WIND

330°/7

VIS

6+ SM

CEILING

BKN020

LAYERS

FEW010 BKN020

T / Td

22 / 19

ALTIM

29.74"

// Interpretation

MVFR — ceiling 2,000 ft. Light winds at 330°/7 kt, visibility 6+ SM, a few at 1,000 ft, and broken at 2,000 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 RJCO 251100Z 33007KT 9999 FEW010 BKN020 22/19 Q1007

RJCO · day 25 at 11:00 UTC · wind from 330° at 7 kt · visibility 6+ SM · a few clouds at 1,000 ft · broken layer at 2,000 ft · temp 22°C / dewpoint 19°C · altimeter 29.74" Hg

// Runway analysis · computed from current METAR wind

Wind 330° @ 7 kt

1 USABLE · 1 AVOID

WIND

330°7 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

32★ HDG 320° H7 kt X1 kt RIGHT PRIMARY · 4,920'

TAILWIND ENDS · AVOID 1 ends

14 HDG 140° T7 kt X1 kt LEFT —

Pattern altitude: 1,025 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 +7°C

1,100FT

+1,075 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV25 FT OAT+22°C ISA DELTA+7°C PRESSURE ALT208 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 MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+11%

-8%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+8%

-5%

Light jetCJ4, Phenom 300, M2

+4%

-3%

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)

BKN020

Broken · base 2,000 ft AGL · ~5–7 oktas

FEW010

Few · base 1,000 ft AGL · ~1–2 oktas

// Computed

CEILING2,000 ft AGL HIGHEST LAYER2,000 ft TOTAL COVERAGE~83% (mostly covered) FREEZING LEVEL11,136 ft VFR MARGIN-1,000 ft

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

19:52ZSUNRISE

02:37ZSOLAR NOON

09:23ZSUNSET

09:52ZCIVIL END

CURRENT16:19Z DAYLIGHT REMAINING17h 03m VFR NIGHT BEGINS09:52Z (17h 33m) DAY LENGTH13h 30m

Waxing Gibbous

ILLUMINATION94% MOONRISE05:55Z MOONSET19:25Z 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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