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// Station · 5m ago

RJCH

Hakodate Airport
CAT LIFR
WIND 240° / 4 kt
VIS 3.1 SM
CEILING OVC at 100 ft
T/Td 21°C / 21°C
ALTIM 29.80 inHg
WX BR
ELEV 151 FT
41.7700°N / 140.8220°E
LOCATION · Hakodate, JP
N
WIND
240°4 kt
RJCH · 151 FT
© OSM · CartoDB

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

METRIC
NOW · 14Z
+6H
+12H
+18H
WIND
240°/4
 
 
 
VIS
3.1 SM
 
 
 
CEILING
OVC001
 
 
 
LAYERS
OVC001
 
 
 
T / Td
21 / 21
 
 
 
ALTIM
29.80"
 
 
 

// Interpretation

LIFR — ceiling 100 ft. Light winds at 240°/4 kt, visibility 3.1 SM, overcast at 100 ft. Reported weather: BR. Reported weather: 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 RJCH 111400Z AUTO 24004KT 5000 BR OVC001 //////TCU 21/21 Q1009

RJCH · day 11 at 14:00 UTC · wind from 240° at 4 kt · visibility 3.1 SM · overcast at 100 ft · temp 21°C / dewpoint 21°C · altimeter 29.80" Hg · weather: BR

// Runway analysis · computed from current METAR wind

Wind 240° @ 4 kt
ALL USABLE · WINDS CALM
N
WIND
240°4 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS 2 ends
12 HDG 120° CALM 9,842'
30 HDG 300° CALM 9,842'
Pattern altitude: 1,151 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 +7°C

1,100FT
+949 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↗ +0 FT
1,500 1,100 700
24h AGO18h12h6hNOW
FIELD ELEV151 FT OAT+21°C ISA DELTA+7°C PRESSURE ALT275 FT
// Performance equivalent Operating here right now feels like operating at RJEC (Asahikawa Airport, Higashikagura, elev 721 ft) on a standard ISA day.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+11%
-8%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+8%
-5%
Light jetCJ4, Phenom 300, M2
+4%
-3%

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 · 10,757 FT OVC001 · CEILING RJCH ELEV · 151 FT
// Reported layers (highest → lowest)
OVC001
Overcast · base 100 ft AGL · 8 oktas
// Computed
CEILING100 ft AGL HIGHEST LAYER100 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL10,757 ft VFR MARGIN-2,900 ft

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

19:12ZSUNRISE
02:43ZSOLAR NOON
10:13ZSUNSET
10:47ZCIVIL END
CURRENT14:05Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS10:47Z (past) DAY LENGTH15h 01m
Waning Crescent
ILLUMINATION11% MOONRISE16:36Z MOONSET07:37Z FULL MOON IN18 days

// Nearest reporting stations · 3 shown · 100 NM (sparse area)

// Area map · 80 NM radius · CartoDB Dark Matter + aeronautical overlay

© OpenStreetMap · CartoDB · OpenAIP
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