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// STALE Observation is 2h 51m old — METAR cadence is typically hourly. A fresh report may be on its way.

// Station · 2h 51m ago · STALE

RJCW

Wakkanai Airport
CAT VFR
WIND 170° / 11 kt
VIS 6+ SM
CEILING Few/scattered only
T/Td 15°C / 13°C
ALTIM 29.80 inHg
ELEV 30 FT
45.4042°N / 141.8010°E
LOCATION · Wakkanai, JP
N
WIND
170°11 kt
RJCW · 30 FT
© OSM · CartoDB

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

METRIC
NOW · 09Z
+6H
+12H
+18H
WIND
170°/11
 
 
 
VIS
6+ SM
 
 
 
CEILING
 
 
 
LAYERS
FEW007
 
 
 
T / Td
15 / 13
 
 
 
ALTIM
29.80"
 
 
 

// Interpretation

VFR with moderate winds at 170°/11 kt. Visibility 6+ SM and a few at 700 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 RJCW 270900Z 17011KT 9999 FEW007 BKN/// 15/13 Q1009

RJCW · day 27 at 09:00 UTC · wind from 170° at 11 kt · visibility 6+ SM · a few clouds at 700 ft · temp 15°C / dewpoint 13°C · altimeter 29.80" Hg

// Runway analysis · computed from current METAR wind

Wind 170° @ 11 kt
2 USABLE · 0 AVOID · 2 CAUTION
N
WIND
170°11 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 2 usable
08 HDG 080° H0 kt X11 kt RIGHT PRIMARY · 6,560'
26 HDG 260° H0 kt X11 kt LEFT ⚠ HIGH XW · 100%
Pattern altitude: 1,030 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 +0°C

200FT
+170 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↗ +0 FT
800 450 100
24h AGO18h12h6hNOW
FIELD ELEV30 FT OAT+15°C ISA DELTA+0°C PRESSURE ALT154 FT
// Performance equivalent Operating here right now feels like operating at RJCN (Nakashibetsu Airport, Nakashibetsu, elev 234 ft) on a standard ISA day.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+2%
-1%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+1%
-1%
Light jetCJ4, Phenom 300, M2
+1%
-1%

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 · 1 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 7,606 FT FEW007 RJCW ELEV · 30 FT
// Reported layers (highest → lowest)
FEW007
Few · base 700 ft AGL · ~1–2 oktas
// Computed
CEILING HIGHEST LAYER700 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL7,606 ft VFR MARGINunlimited

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

18:53ZSUNRISE
02:31ZSOLAR NOON
10:09ZSUNSET
10:45ZCIVIL END
CURRENT11:51Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS10:45Z (past) DAY LENGTH15h 16m
Waxing Gibbous
ILLUMINATION83% MOONRISE03:37Z MOONSET18:54Z FULL MOON IN4 days

// Nearest reporting stations · 4 shown · 150 NM (sparse area)

// Area map · 140 NM radius · CartoDB Dark Matter + aeronautical overlay

© OpenStreetMap · CartoDB · OpenAIP
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