// Station · 5m ago

RJOY

Yao Airport

CAT VFR

WIND VRB / 3 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 25°C / 17°C

ALTIM 29.97 inHg

ELEV 39 FT

34.5963°N / 135.6030°E

LOCATION · Yao, JP

WIND

VRB3 kt

RJOY · 39 FT

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

METRIC

NOW · 01Z

+6H

+12H

+18H

WIND

VRB/3

VIS

6+ SM

CEILING

—

LAYERS

FEW030

T / Td

25 / 17

ALTIM

29.97"

// Interpretation

VFR with light winds at variable/3 kt. Visibility 6+ SM and a few at 3,000 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 RJOY 130100Z VRB03KT 9999 FEW030 25/17 Q1015

RJOY · day 13 at 01:00 UTC · wind variable at 3 kt · visibility 6+ SM · a few clouds at 3,000 ft · temp 25°C / dewpoint 17°C · altimeter 29.97" Hg

// Runway analysis · computed from current METAR wind

Wind VRB @ 3 kt

ALL USABLE · WINDS CALM

WIND

VRB3 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 4 ends

09 HDG 090° —CALM —— 4,890'

27 HDG 270° —CALM —— 4,890'

13 HDG 130° —CALM —— 3,940'

31 HDG 310° —CALM —— 3,940'

Pattern altitude: 1,039 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 +10°C

1,200FT

+1,161 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV39 FT OAT+25°C ISA DELTA+10°C PRESSURE ALT-14 FT

// Performance equivalent Operating here right now feels like operating at RJOA (Hiroshima Airport, Hiroshima, elev 1,088 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+12%

-8%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+8%

-5%

Light jetCJ4, Phenom 300, M2

+5%

-4%

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)

FEW030

Few · base 3,000 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER3,000 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL12,665 ft VFR MARGINunlimited

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

21:02ZSUNRISE

02:45ZSOLAR NOON

08:28ZSUNSET

08:53ZCIVIL END

CURRENT01:05Z DAYLIGHT REMAINING7h 22m VFR NIGHT BEGINS08:53Z (7h 47m) DAY LENGTH11h 26m

Waxing Crescent

ILLUMINATION3% MOONRISE22:23Z MOONSET09:49Z 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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