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// STALE Observation is 1h 7m old — METAR cadence is typically hourly. A fresh report may be on its way.

// Station · 1h 7m ago · STALE

WMKB

RMAF Butterworth Air Base
CAT VFR
WIND 320° / 6 kt
VIS 5.6 SM
CEILING Few/scattered only
T/Td 30°C / 24°C
ALTIM 29.83 inHg
ELEV 11 FT
5.4659°N / 100.3910°E
LOCATION · Butterworth, MY
N
WIND
320°6 kt
WMKB · 11 FT
© OSM · CartoDB

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

METRIC
NOW · 13Z
+6H
+12H
+18H
WIND
320°/6
 
 
 
VIS
5.6 SM
 
 
 
CEILING
 
 
 
LAYERS
FEW024
 
 
 
T / Td
30 / 24
 
 
 
ALTIM
29.83"
 
 
 

// Interpretation

VFR with light winds at 320°/6 kt. Visibility 5.6 SM and a few at 2,400 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 WMKB 271300Z 32006KT 280V010 9000 FEW024 30/24 Q1010 NOSIG

WMKB · day 27 at 13:00 UTC · wind from 320° at 6 kt · visibility 5.6 SM · a few clouds at 2,400 ft · temp 30°C / dewpoint 24°C · altimeter 29.83" Hg

// Runway analysis · computed from current METAR wind

Wind 320° @ 6 kt
1 USABLE · 1 AVOID
N
WIND
320°6 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 1 usable
36 HDG 360° H5 kt X4 kt LEFT PRIMARY · 8,000'
TAILWIND ENDS · AVOID 1 ends
18 HDG 180° T5 kt X4 kt RIGHT
Pattern altitude: 1,011 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 +15°C

1,900FT
+1,889 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↗ +0 FT
2,400 1,750 1,100
24h AGO18h12h6hNOW
FIELD ELEV11 FT OAT+30°C ISA DELTA+15°C PRESSURE ALT106 FT
// Performance equivalent Operating here right now feels like operating at WBGF (Long Lellang Airport, Long Datih, elev 1,400 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 · 1 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 15,163 FT FEW024 WMKB ELEV · 11 FT
// Reported layers (highest → lowest)
FEW024
Few · base 2,400 ft AGL · ~1–2 oktas
// Computed
CEILING HIGHEST LAYER2,400 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL15,163 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+7)

23:04ZSUNRISE
05:16ZSOLAR NOON
11:29ZSUNSET
11:51ZCIVIL END
CURRENT14:07Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS11:51Z (past) DAY LENGTH12h 24m
Waxing Gibbous
ILLUMINATION84% MOONRISE07:54Z MOONSET20:18Z 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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