// Station · 18m ago

ROAH

Naha International Airport

CAT MVFR

WIND 240° / 34 kt

VIS 3.1 SM

CEILING BKN at 1,300 ft

T/Td 28°C / 27°C

ALTIM 29.29 inHg

WX -SHRA BR

ELEV 12 FT

26.1924°N / 127.6398°E

LOCATION · Naha, JP

WIND

240°34 kt

ROAH · 12 FT

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

METRIC

NOW · 22Z

+6H

+12H

+18H

WIND

240°/34

VIS

3.1 SM

CEILING

BKN013

LAYERS

FEW008 BKN013 BKN020 FEW025

T / Td

28 / 27

ALTIM

29.29"

// Interpretation

MVFR — ceiling 1,300 ft. Strong winds at 240°/34 kt, visibility 3.1 SM, a few at 800 ft, broken at 1,300 ft, broken at 2,000 ft, and a few at 2,500 ft. Reported weather: light rain showers and mist (-SHRA BR). Mist is water droplets thinning visibility to between 5/8 and 6 SM — the moist, lighter cousin of fog. 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 ROAH 252200Z 24034KT 5000 -SHRA BR FEW008 BKN013 BKN020 FEW025TCU 28/27 Q0992

ROAH · day 25 at 22:00 UTC · wind from 240° at 34 kt · visibility 3.1 SM · a few clouds at 800 ft · broken layer at 1,300 ft · broken layer at 2,000 ft · a few clouds at 2,500 ft · temp 28°C / dewpoint 27°C · altimeter 29.29" Hg · weather: light rain showers and mist (-SHRA BR)

// Runway analysis · computed from current METAR wind

Wind 240° @ 34 kt

2 USABLE · 2 AVOID · 2 CAUTION

WIND

240°34 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

18L★ HDG 180° H17 kt X29 kt RIGHT PRIMARY · 9,840'

18R HDG 180° H17 kt X29 kt RIGHT ⚠ HIGH XW · 85%

TAILWIND ENDS · AVOID 2 ends

36R HDG 360° T17 kt X29 kt LEFT —

36L HDG 360° T17 kt X29 kt LEFT —

Pattern altitude: 1,012 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 +14°C

2,300FT

+2,288 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV12 FT OAT+28°C ISA DELTA+14°C PRESSURE ALT638 FT

// Performance equivalent Operating here right now feels like operating at RJAT (JGSDF Camp Fuji Heliport / Fuji Army Heliport, Gotenba, elev 2,271 ft) on a standard ISA day.

// Aircraft performance impact SIGNIFICANT

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+23%

-16%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+16%

-10%

Light jetCJ4, Phenom 300, M2

+9%

-7%

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 · 4 reported · highest to lowest

// Reported layers (highest → lowest)

FEW025

Few · base 2,500 ft AGL · ~1–2 oktas

BKN020

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

BKN013

Broken · base 1,300 ft AGL · ~5–7 oktas

FEW008

Few · base 800 ft AGL · ~1–2 oktas

// Computed

CEILING1,300 ft AGL HIGHEST LAYER2,500 ft TOTAL COVERAGE~99% (overcast) FREEZING LEVEL14,153 ft VFR MARGIN-1,700 ft

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

21:08ZSUNRISE

03:32ZSOLAR NOON

09:57ZSUNSET

10:21ZCIVIL END

CURRENT22:18Z DAYLIGHT REMAINING11h 39m VFR NIGHT BEGINS10:21Z (12h 02m) DAY LENGTH12h 49m

Waxing Gibbous

ILLUMINATION95% MOONRISE07:22Z MOONSET20:12Z FULL MOON IN2 days

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

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