// Station · 18m ago

RJSM

Misawa Airport / Misawa Air Base

CAT VFR

WIND 290° / 3 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 23°C / 20°C

ALTIM 29.77 inHg

ELEV 119 FT

40.7032°N / 141.3680°E

LOCATION · Misawa, JP

WIND

290°3 kt

RJSM · 119 FT

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

METRIC

NOW · 16Z

+6H

+12H

+18H

WIND

290°/3

VIS

6+ SM

CEILING

—

LAYERS

FEW020

T / Td

23 / 20

ALTIM

29.77"

// Interpretation

VFR with light winds at 290°/3 kt. Visibility 6+ SM and a few at 2,000 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 RJSM 251600Z 29003KT 250V330 9999 FEW020 23/20 Q1008

RJSM · day 25 at 16:00 UTC · wind from 290° at 3 kt · visibility 6+ SM · a few clouds at 2,000 ft · temp 23°C / dewpoint 20°C · altimeter 29.77" Hg

// Runway analysis · computed from current METAR wind

Wind 290° @ 3 kt

ALL USABLE · WINDS CALM

WIND

290°3 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

10 HDG 100° —CALM —— 10,000'

28 HDG 280° —CALM —— 10,000'

Pattern altitude: 1,119 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 +9°C

1,300FT

+1,181 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV119 FT OAT+23°C ISA DELTA+9°C PRESSURE ALT273 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 MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+13%

-9%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+9%

-6%

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)

FEW020

Few · base 2,000 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER2,000 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL11,735 ft VFR MARGINunlimited

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

19:56ZSUNRISE

02:38ZSOLAR NOON

09:19ZSUNSET

09:48ZCIVIL END

CURRENT16:18Z DAYLIGHT REMAINING17h 01m VFR NIGHT BEGINS09:48Z (17h 30m) DAY LENGTH13h 23m

Waxing Gibbous

ILLUMINATION94% MOONRISE05:58Z MOONSET19:22Z 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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