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// Station · 51m ago

RJEC

Asahikawa Airport
CAT VFR
WIND 350° / 4 kt
VIS 6+ SM
CEILING BKN at 18,000 ft
T/Td 18°C / 14°C
ALTIM 29.83 inHg
ELEV 721 FT
43.6708°N / 142.4470°E
LOCATION · Higashikagura, JP
N
WIND
350°4 kt
RJEC · 721 FT
© OSM · CartoDB

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

METRIC
NOW · 10Z
+6H
+12H
+18H
WIND
350°/4
 
 
 
VIS
6+ SM
 
 
 
CEILING
BKN180
 
 
 
LAYERS
FEW025 SCT050 BKN180
 
 
 
T / Td
18 / 14
 
 
 
ALTIM
29.83"
 
 
 

// Interpretation

VFR — ceiling 18,000 ft. Light winds at 350°/4 kt, visibility 6+ SM, a few at 2,500 ft, scattered at 5,000 ft, and broken at 18,000 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 271000Z 35004KT 9999 FEW025 SCT050 BKN180 18/14 Q1010

RJEC · day 27 at 10:00 UTC · wind from 350° at 4 kt · visibility 6+ SM · a few clouds at 2,500 ft · scattered layer at 5,000 ft · broken layer at 18,000 ft · temp 18°C / dewpoint 14°C · altimeter 29.83" Hg

// Runway analysis · computed from current METAR wind

Wind 350° @ 4 kt
ALL USABLE · WINDS CALM
N
WIND
350°4 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS 2 ends
16 HDG 160° CALM 8,200'
34 HDG 340° CALM 8,200'
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 +5°C

1,400FT
+679 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -100 FT
2,500 1,400 300
24h AGO18h12h6hNOW
FIELD ELEV721 FT OAT+18°C ISA DELTA+5°C PRESSURE ALT816 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 MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+14%
-10%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+10%
-6%
Light jetCJ4, Phenom 300, M2
+6%
-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.

// Cloud layers · 3 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 9,812 FT FEW025 SCT050 BKN180 · CEILING RJEC ELEV · 721 FT
// Reported layers (highest → lowest)
BKN180
Broken · base 18,000 ft AGL · ~5–7 oktas
SCT050
Scattered · base 5,000 ft AGL · ~3–4 oktas
FEW025
Few · base 2,500 ft AGL · ~1–2 oktas
// Computed
CEILING18,000 ft AGL HIGHEST LAYER18,000 ft TOTAL COVERAGE~91% (overcast) FREEZING LEVEL9,812 ft VFR MARGIN+15,000 ft

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

18:56ZSUNRISE
02:28ZSOLAR NOON
10:01ZSUNSET
10:35ZCIVIL END
CURRENT10:51Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS10:35Z (past) DAY LENGTH15h 04m
Waxing Gibbous
ILLUMINATION83% MOONRISE03:39Z MOONSET18:43Z FULL MOON IN4 days

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

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

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