// Station · 9m ago

RJSK

Akita Airport

CAT VFR

WIND 130° / 9 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 21°C / 14°C

ALTIM 30.00 inHg

ELEV 313 FT

39.6156°N / 140.2190°E

LOCATION · Akita, JP

WIND

130°9 kt

RJSK · 313 FT

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

METRIC

NOW · 01Z

+6H

+12H

+18H

WIND

130°/9

VIS

6+ SM

CEILING

—

LAYERS

FEW040

T / Td

21 / 14

ALTIM

30.00"

// Interpretation

VFR with moderate winds at 130°/9 kt. Visibility 6+ SM and a few at 4,000 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 RJSK 130100Z 13009KT 100V160 9999 FEW040 21/14 Q1016

RJSK · day 13 at 01:00 UTC · wind from 130° at 9 kt · visibility 6+ SM · a few clouds at 4,000 ft · temp 21°C / dewpoint 14°C · altimeter 30.00" Hg

// Runway analysis · computed from current METAR wind

Wind 130° @ 9 kt

1 USABLE · 1 AVOID

WIND

130°9 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

10★ HDG 100° H8 kt X4 kt RIGHT PRIMARY · 8,200'

TAILWIND ENDS · AVOID 1 ends

28 HDG 280° T8 kt X4 kt LEFT —

Pattern altitude: 1,313 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 +6°C

1,000FT

+687 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV313 FT OAT+21°C ISA DELTA+6°C PRESSURE ALT231 FT

// Performance equivalent Operating here right now feels like operating at RJSF (Fukushima Airport, Sukagawa, elev 1,221 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+10%

-7%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+7%

-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 · 1 reported · highest to lowest

// Reported layers (highest → lowest)

FEW040

Few · base 4,000 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER4,000 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL10,919 ft VFR MARGINunlimited

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

20:47ZSUNRISE

02:26ZSOLAR NOON

08:05ZSUNSET

08:32ZCIVIL END

CURRENT01:09Z DAYLIGHT REMAINING6h 56m VFR NIGHT BEGINS08:32Z (7h 23m) DAY LENGTH11h 18m

Waxing Crescent

ILLUMINATION3% MOONRISE22:08Z MOONSET09:26Z FULL MOON IN13 days

// Nearest reporting stations

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

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