// Station · 53m ago

RJSS

Sendai Airport

CAT VFR

WIND VRB / 4 kt

VIS 6+ SM

CEILING BKN at 3,500 ft

T/Td 23°C / 18°C

ALTIM 30.03 inHg

ELEV 15 FT

38.1397°N / 140.9170°E

LOCATION · Natori, JP

WIND

VRB4 kt

RJSS · 15 FT

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

METRIC

NOW · 01Z

+6H

+12H

+18H

WIND

VRB/4

VIS

6+ SM

CEILING

BKN035

LAYERS

FEW015 SCT020 BKN035

T / Td

23 / 18

ALTIM

30.03"

// Interpretation

VFR — ceiling 3,500 ft. Light winds at variable/4 kt, visibility 6+ SM, a few at 1,500 ft, scattered at 2,000 ft, and broken at 3,500 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 RJSS 130100Z VRB04KT 9999 FEW015 SCT020 BKN035 23/18 Q1017

RJSS · day 13 at 01:00 UTC · wind variable at 4 kt · visibility 6+ SM · a few clouds at 1,500 ft · scattered layer at 2,000 ft · broken layer at 3,500 ft · temp 23°C / dewpoint 18°C · altimeter 30.03" Hg

// Runway analysis · computed from current METAR wind

Wind VRB @ 4 kt

ALL USABLE · WINDS CALM

WIND

VRB4 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 4 ends

09 HDG 090° —CALM —— 9,842'

27 HDG 270° —CALM —— 9,842'

12 HDG 120° —CALM —— 3,940'

30 HDG 300° —CALM —— 3,940'

Pattern altitude: 1,015 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 +8°C

800FT

+785 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV15 FT OAT+23°C ISA DELTA+8°C PRESSURE ALT-97 FT

// Performance equivalent Operating here right now feels like operating at RJNW (Noto Satoyama Airport, Wajima, elev 718 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+8%

-6%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+6%

-4%

Light jetCJ4, Phenom 300, M2

+3%

-2%

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 · 3 reported · highest to lowest

// Reported layers (highest → lowest)

BKN035

Broken · base 3,500 ft AGL · ~5–7 oktas

SCT020

Scattered · base 2,000 ft AGL · ~3–4 oktas

FEW015

Few · base 1,500 ft AGL · ~1–2 oktas

// Computed

CEILING3,500 ft AGL HIGHEST LAYER3,500 ft TOTAL COVERAGE~91% (overcast) FREEZING LEVEL11,631 ft VFR MARGIN+500 ft

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

20:43ZSUNRISE

02:23ZSOLAR NOON

08:04ZSUNSET

08:30ZCIVIL END

CURRENT01:53Z DAYLIGHT REMAINING6h 10m VFR NIGHT BEGINS08:30Z (6h 37m) DAY LENGTH11h 20m

Waxing Crescent

ILLUMINATION3% MOONRISE22:06Z 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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