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// Station · 37m ago

KNRA

Coupeville Nolf Airport
CAT VFR
WIND 260° / 9 kt G18
VIS 10+ SM
CEILING OVC at 4,400 ft
T/Td 13.9°C / 11.7°C
ALTIM 30.01 inHg
ELEV 199 FT
48.1883°N / 122.6320°W
LOCATION · Coupeville, US
N
WIND
260°9 kt
KNRA · 199 FT
© OSM · CartoDB

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

METRIC
NOW · 02Z
+6H
+12H
+18H
WIND
260°/9G18
 
 
 
VIS
10+ SM
 
 
 
CEILING
OVC044
 
 
 
LAYERS
OVC044
 
 
 
T / Td
14 / 12
 
 
 
ALTIM
30.01"
 
 
 

// Interpretation

VFR — ceiling 4,400 ft. Moderate winds at 260°/9 kt, gusting 18, visibility better than 10 statute miles, overcast at 4,400 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 KNRA 290246Z AUTO 26009G18KT 10SM OVC044 14/12 A3001 RMK AO2 SLP105 T01390117 55006 TSNO $

KNRA · day 29 at 02:46 UTC · wind from 260° at 9 kt, gusts to 18 kt · visibility 10+ SM · overcast at 4,400 ft · temp 14°C / dewpoint 12°C · altimeter 30.01" Hg · automated station w/ precipitation discriminator · sea-level pressure 1010.5 mb

// Runway analysis · computed from current METAR wind

Wind 260° @ 9 ktG18
1 USABLE · 1 AVOID
N
WIND
260°9G18 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 1 usable
32 HDG 320° H5 kt X8 kt LEFT PRIMARY · 5,400'
TAILWIND ENDS · AVOID 1 ends
14 HDG 140° T4 kt X8 kt RIGHT
Pattern altitude: 1,199 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 -1°C

0FT
-199 FT BELOW FIELD ELEV
// DA · LAST 24 HOURS loading…
FIELD ELEV199 FT OAT+14°C ISA DELTA-1°C PRESSURE ALT108 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 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 · 1 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 7,219 FT OVC044 · CEILING KNRA ELEV · 199 FT
// Reported layers (highest → lowest)
OVC044
Overcast · base 4,400 ft AGL · 8 oktas
// Computed
CEILING4,400 ft AGL HIGHEST LAYER4,400 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL7,219 ft VFR MARGIN+1,400 ft

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

13:24ZSUNRISE
20:13ZSOLAR NOON
03:02ZSUNSET
03:34ZCIVIL END
CURRENT03:23Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS03:34Z (11m) DAY LENGTH13h 37m
Waning Gibbous
ILLUMINATION99% MOONRISE02:15Z MOONSET15:53Z FULL MOON IN28 days

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