// Station · 18m ago

RJOM

Matsuyama Airport

CAT VFR

WIND VRB / 1 kt

VIS 6+ SM

CEILING CLR

T/Td 28°C / 24°C

ALTIM 29.85 inHg

ELEV 25 FT

33.8269°N / 132.7001°E

LOCATION · Matsuyama, JP

WIND

VRB1 kt

RJOM · 25 FT

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

METRIC

NOW · 16Z

+6H

+12H

+18H

WIND

VRB/1

VIS

6+ SM

CEILING

CLR

LAYERS

—

T / Td

28 / 24

ALTIM

29.85"

// Interpretation

VFR with light winds at variable/1 kt. Visibility 6+ SM and no reported cloud layers. 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 RJOM 251600Z AUTO VRB01KT 9999 NSC 28/24 Q1011

RJOM · day 25 at 16:00 UTC · wind variable at 1 kt · visibility 6+ SM · temp 28°C / dewpoint 24°C · altimeter 29.85" Hg

// Runway analysis · computed from current METAR wind

Wind VRB @ 1 kt

ALL USABLE · WINDS CALM

WIND

VRB1 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

14 HDG 140° —CALM —— 8,200'

32 HDG 320° —CALM —— 8,200'

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 +13°C

1,700FT

+1,675 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV25 FT OAT+28°C ISA DELTA+13°C PRESSURE ALT90 FT

// Performance equivalent Operating here right now feels like operating at RJAF (Shinshu-Matsumoto Airport, Matsumoto, elev 2,182 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+17%

-12%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+12%

-8%

Light jetCJ4, Phenom 300, M2

+7%

-5%

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 · clear · no layers reported

// Reported layers (highest → lowest)

CLR

No reported cloud layers — clear sky from surface to reporting ceiling.

// Computed

CEILING— HIGHEST LAYER— TOTAL COVERAGEclear FREEZING LEVEL14,166 ft VFR MARGINunlimited

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

20:39ZSUNRISE

03:12ZSOLAR NOON

09:45ZSUNSET

10:11ZCIVIL END

CURRENT16:18Z DAYLIGHT REMAINING17h 26m VFR NIGHT BEGINS10:11Z (17h 52m) DAY LENGTH13h 05m

Waxing Gibbous

ILLUMINATION94% MOONRISE06:42Z MOONSET19:48Z FULL MOON IN2 days

// Nearest reporting stations

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

AIRSPACE

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