// Station · 59m ago

RJEC

Asahikawa Airport

CAT VFR

WIND 170° / 7 kt

VIS 6+ SM

CEILING OVC at 6,000 ft

T/Td 22°C / 20°C

ALTIM 29.80 inHg

ELEV 721 FT

43.6708°N / 142.4470°E

LOCATION · Higashikagura, JP

WIND

170°7 kt

RJEC · 721 FT

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

METRIC

NOW · 13Z

+6H

+12H

+18H

WIND

170°/7

VIS

6+ SM

CEILING

OVC060

LAYERS

FEW025 SCT050 OVC060

T / Td

22 / 20

ALTIM

29.80"

// Interpretation

VFR — ceiling 6,000 ft. Light winds at 170°/7 kt, visibility 6+ SM, a few at 2,500 ft, scattered at 5,000 ft, and overcast at 6,000 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 RJEC 111300Z AUTO 17007KT 9999 FEW025 SCT050 OVC060 //////TCU 22/20 Q1009

RJEC · day 11 at 13:00 UTC · wind from 170° at 7 kt · visibility 6+ SM · a few clouds at 2,500 ft · scattered layer at 5,000 ft · overcast at 6,000 ft · temp 22°C / dewpoint 20°C · altimeter 29.80" Hg

// Runway analysis · computed from current METAR wind

Wind 170° @ 7 kt

1 USABLE · 1 AVOID

WIND

170°7 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

16★ HDG 160° H7 kt X1 kt RIGHT PRIMARY · 8,200'

TAILWIND ENDS · AVOID 1 ends

34 HDG 340° T7 kt X1 kt LEFT —

Pattern altitude: 1,721 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

1,900FT

+1,179 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS ↗ +300 FT

24h AGO18h12h6hNOW

FIELD ELEV721 FT OAT+22°C ISA DELTA+9°C PRESSURE ALT845 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 MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+19%

-13%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+13%

-9%

Light jetCJ4, Phenom 300, M2

+8%

-6%

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 · 3 reported · highest to lowest

// Reported layers (highest → lowest)

OVC060

Overcast · base 6,000 ft AGL · 8 oktas

SCT050

Scattered · base 5,000 ft AGL · ~3–4 oktas

FEW025

Few · base 2,500 ft AGL · ~1–2 oktas

// Computed

CEILING6,000 ft AGL HIGHEST LAYER6,000 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL11,832 ft VFR MARGIN+3,000 ft

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

18:59ZSUNRISE

02:36ZSOLAR NOON

10:13ZSUNSET

10:48ZCIVIL END

CURRENT13:59Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS10:48Z (past) DAY LENGTH15h 14m

Waning Crescent

ILLUMINATION11% MOONRISE16:23Z MOONSET07:37Z FULL MOON IN18 days

// Nearest reporting stations · 1 shown · 100 NM (sparse area)

RJCK

VFR → MVFR 12Z

Kushiro Airport · Kushiro

WIND: 320° / 5 kt
VIS: 6+ SM
CEILING: CLR
DIST: 85 NM SE
AGE: 59m ago

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

AIRSPACE

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