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// Station · 11m ago

KNUW

Whidbey Island Naval Air Station (Ault Field)
CAT VFR
WIND 260° / 3 kt
VIS 10+ SM
CEILING BKN at 3,500 ft
T/Td 12.2°C / 8.9°C
ALTIM 29.98 inHg
ELEV 47 FT
48.3518°N / 122.6560°W
LOCATION · Oak Harbor, US
N
WIND
260°3 kt
KNUW · 47 FT
© OSM · CartoDB

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

METRIC
NOW · 13Z
+6H
+12H
+18H
WIND
260°/3
 
 
 
VIS
10+ SM
 
 
 
CEILING
BKN035
 
 
 
LAYERS
BKN035 OVC070
 
 
 
T / Td
12 / 9
 
 
 
ALTIM
29.98"
 
 
 

// Interpretation

VFR — ceiling 3,500 ft. Light winds at 260°/3 kt, visibility better than 10 statute miles, broken at 3,500 ft, and overcast at 7,000 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 KNUW 111353Z 26003KT 10SM BKN035 OVC070 12/09 A2998 RMK AO2 SLP156 T01220089

KNUW · day 11 at 13:53 UTC · wind from 260° at 3 kt · visibility 10+ SM · broken layer at 3,500 ft · overcast at 7,000 ft · temp 12°C / dewpoint 9°C · altimeter 29.98" Hg · automated station w/ precipitation discriminator · sea-level pressure 1015.6 mb

// Runway analysis · computed from current METAR wind

Wind 260° @ 3 kt
ALL USABLE · WINDS CALM
N
WIND
260°3 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS 4 ends
14 HDG 140° CALM 8,001'
32 HDG 320° CALM 8,001'
07 HDG 070° CALM 7,999'
25 HDG 250° CALM 7,999'
Pattern altitude: 1,047 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 -3°C

-400FT
-447 FT BELOW FIELD ELEV
// DA · LAST 24 HOURS ↘ -300 FT
500 -50 -600
24h AGO18h12h6hNOW
FIELD ELEV47 FT OAT+12°C ISA DELTA-3°C PRESSURE ALT-15 FT
// Performance equivalent Operating here right now feels like operating at 7WA5 (Stuart Island Airpark, Friday Harbor, elev 10 ft) on a standard ISA day.
// Aircraft performance impact MINOR
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.

// Cloud layers · 2 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 6,209 FT BKN035 · CEILING OVC070 KNUW ELEV · 47 FT
// Reported layers (highest → lowest)
OVC070
Overcast · base 7,000 ft AGL · 8 oktas
BKN035
Broken · base 3,500 ft AGL · ~5–7 oktas
// Computed
CEILING3,500 ft AGL HIGHEST LAYER7,000 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL6,209 ft VFR MARGIN+500 ft

// Sun & Moon · times in Z · bar = local day (UTC-8)

12:22ZSUNRISE
20:17ZSOLAR NOON
04:11ZSUNSET
04:52ZCIVIL END
CURRENT14:04Z DAYLIGHT REMAINING14h 07m VFR NIGHT BEGINS04:52Z (14h 47m) DAY LENGTH15h 49m
Waning Crescent
ILLUMINATION11% MOONRISE09:46Z MOONSET01:35Z FULL MOON IN18 days

// Nearest reporting stations · 5 shown · 60 NM radius

// Area map · 60 NM radius · CartoDB Dark Matter + aeronautical overlay

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