// Station · 50m ago

RJSS

Sendai Airport

CAT LIFR

WIND 120° / 4 kt

VIS 0.68 SM

CEILING BKN at 300 ft

T/Td 18°C / 17°C

ALTIM 29.80 inHg

WX -DZ BCFG BR

ELEV 15 FT

38.1397°N / 140.9170°E

LOCATION · Natori, JP

WIND

120°4 kt

RJSS · 15 FT

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

METRIC

NOW · 10Z

+6H

+12H

+18H

WIND

120°/4

VIS

0.68 SM

CEILING

BKN003

LAYERS

SCT001 BKN003

T / Td

18 / 17

ALTIM

29.80"

// Interpretation

LIFR — ceiling 300 ft. Light winds at 120°/4 kt, visibility 0.68 SM, scattered at 100 ft, and broken at 300 ft. Reported weather: -DZ BCFG BR. Reported weather: -DZ BCFG BR. LIFR is the lowest standard category. Would improve to IFR above 500 ft and 1 SM.

Loading TAF forecast narrative…

SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR RJSS 271000Z 12004KT 1100 R27/2000N -DZ BCFG BR SCT001 BKN003 18/17 Q1009

RJSS · day 27 at 10:00 UTC · wind from 120° at 4 kt · visibility 0.68 SM · scattered layer at 100 ft · broken layer at 300 ft · temp 18°C / dewpoint 17°C · altimeter 29.80" Hg · weather: -DZ BCFG BR

// Runway analysis · computed from current METAR wind

Wind 120° @ 4 kt

ALL USABLE · WINDS CALM

WIND

120°4 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 +3°C

500FT

+485 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS ↗ +300 FT

24h AGO18h12h6hNOW

FIELD ELEV15 FT OAT+18°C ISA DELTA+3°C PRESSURE ALT139 FT

// Performance equivalent Operating here right now feels like operating at RJST (JASDF Matsushima Air Base, Ishinomaki, elev 7 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+5%

-4%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+4%

-2%

Light jetCJ4, Phenom 300, M2

+2%

-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.

// Cloud layers · 2 reported · highest to lowest

// Reported layers (highest → lowest)

BKN003

Broken · base 300 ft AGL · ~5–7 oktas

SCT001

Scattered · base 100 ft AGL · ~3–4 oktas

// Computed

CEILING300 ft AGL HIGHEST LAYER300 ft TOTAL COVERAGE~83% (mostly covered) FREEZING LEVEL9,106 ft VFR MARGIN-2,700 ft

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

19:19ZSUNRISE

02:34ZSOLAR NOON

09:50ZSUNSET

10:21ZCIVIL END

CURRENT10:50Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS10:21Z (past) DAY LENGTH14h 31m

Waxing Gibbous

ILLUMINATION83% MOONRISE04:01Z MOONSET18:33Z FULL MOON IN4 days

// Nearest reporting stations · 5 shown · 100 NM (sparse area)

RJSC

VFR

Yamagata Airport · Higashine

WIND: 100° / 12 kt
VIS: 6+ SM
CEILING: FEW025
DIST: 30 NM NW
AGE: 50m ago

RJSF

VFR

Fukushima Airport · Sukagawa

WIND: 140° / 6 kt
VIS: 6+ SM
CEILING: FEW020
DIST: 59 NM SW
AGE: 50m ago

RJSY

VFR

Shonai Airport · Shonai

WIND: 090° / 11 kt
VIS: 6+ SM
CEILING: FEW040
DIST: 67 NM NW
AGE: 50m ago

RJSI

VFR

Iwate Hanamaki Airport · Hanamaki

WIND: 190° / 7 kt
VIS: 6+ SM
CEILING: FEW025
DIST: 78 NM N
AGE: 50m ago

RJSN

VFR

Niigata Airport · Niigata

WIND: 020° / 6 kt
VIS: 6+ SM
CEILING: FEW030
DIST: 86 NM W
AGE: 50m ago

// Area map · 100 NM radius · CartoDB Dark Matter + aeronautical overlay

AIRSPACE

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