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// Station · 23m ago

PADU

Tom Madsen (Dutch Harbor) Airport
CAT VFR
WIND CALM
VIS 10+ SM
CEILING OVC at 5,000 ft
T/Td 13.9°C / 11.7°C
ALTIM 30.16 inHg
ELEV 22 FT
53.8988°N / 166.5450°W
LOCATION · Unalaska, US
N
WIND
000°0 kt
PADU · 22 FT
© OSM · CartoDB

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

METRIC
NOW · 15Z
+6H
+12H
+18H
WIND
CALM
 
 
 
VIS
10+ SM
 
 
 
CEILING
OVC050
 
 
 
LAYERS
FEW031 OVC050
 
 
 
T / Td
14 / 12
 
 
 
ALTIM
30.16"
 
 
 

// Interpretation

VFR — ceiling 5,000 ft. Winds calm, visibility better than 10 statute miles, a few at 3,100 ft, and overcast at 5,000 ft. Would shift to MVFR if the ceiling drops to 3,000 ft or visibility below 5 SM.

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SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR PADU 251556Z 00000KT 10SM FEW031 OVC050 14/12 A3016 RMK AO2 SLP212 T01390117

PADU · day 25 at 15:56 UTC · winds calm · visibility 10+ SM · a few clouds at 3,100 ft · overcast at 5,000 ft · temp 14°C / dewpoint 12°C · altimeter 30.16" Hg · automated station w/ precipitation discriminator · sea-level pressure 1021.2 mb

// Runway analysis · computed from current METAR wind

Wind CALM
ALL USABLE · WINDS CALM
N
WIND
000°calm
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS 2 ends
13 HDG 130° CALM 4,500'
31 HDG 310° CALM 4,500'
Pattern altitude: 1,022 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 -2°C

-400FT
-422 FT BELOW FIELD ELEV
// DA · LAST 24 HOURS loading…
FIELD ELEV22 FT OAT+14°C ISA DELTA-2°C PRESSURE ALT-220 FT
// Performance equivalent Operating here right now feels like operating at PAEL (Elfin Cove Seaplane Base, Elfin Cove, elev 0 ft) on a standard ISA day.
// Aircraft performance impact ENHANCED
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+0%
-0%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+0%
-0%
Light jetCJ4, Phenom 300, M2
+0%
-0%

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. Severity rating assumes a standard altimeter setting (29.92" Hg / 1013 hPa); a non-standard setting shifts the effective altitude by roughly 1,000 ft per 1" Hg of deviation.

// Cloud layers · 2 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 7,042 FT FEW031 OVC050 · CEILING PADU ELEV · 22 FT
// Reported layers (highest → lowest)
OVC050
Overcast · base 5,000 ft AGL · 8 oktas
FEW031
Few · base 3,100 ft AGL · ~1–2 oktas
// Computed
CEILING5,000 ft AGL HIGHEST LAYER5,000 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL7,042 ft VFR MARGIN+2,000 ft

// Sun & Moon · times in Z · bar = local day (UTC-11)

16:03ZSUNRISE
23:09ZSOLAR NOON
06:15ZSUNSET
06:53ZCIVIL END
CURRENT16:19Z DAYLIGHT REMAINING13h 55m VFR NIGHT BEGINS06:53Z (14h 33m) DAY LENGTH14h 11m
Waxing Gibbous
ILLUMINATION94% MOONRISE02:06Z MOONSET16:18Z FULL MOON IN2 days

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