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// Station · 25m ago

KAPC

Napa County Airport
CAT VFR
WIND 160° / 3 kt
VIS 10+ SM
CEILING CLR
T/Td 15°C / 12.8°C
ALTIM 29.95 inHg
ELEV 35 FT
38.2132°N / 122.2810°W
LOCATION · Napa, US
N
WIND
160°3 kt
KAPC · 35 FT
© OSM · CartoDB

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

METRIC
NOW · 06Z
+6H
+12H
+18H
WIND
160°/3
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
15 / 13
 
 
 
ALTIM
29.95"
 
 
 

// Interpretation

VFR with light winds at 160°/3 kt. Visibility better than 10 statute miles and no reported cloud layers. 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 KAPC 290654Z AUTO 16003KT 10SM CLR 15/13 A2995 RMK AO2 SLP132 T01500128 402110150

KAPC · day 29 at 06:54 UTC · wind from 160° at 3 kt · visibility 10+ SM · temp 15°C / dewpoint 13°C · altimeter 29.95" Hg · automated station w/ precipitation discriminator · sea-level pressure 1013.2 mb

// Runway analysis · computed from current METAR wind

Wind 160° @ 3 kt
ALL USABLE · WINDS CALM
N
WIND
160°3 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS 6 ends
01L HDG 010° CALM 5,930'
19R HDG 190° CALM 5,930'
6 HDG 060° CALM 5,008'
24 HDG 240° CALM 5,008'
01R HDG 010° CALM 2,510'
19L HDG 190° CALM 2,510'
Pattern altitude: 1,035 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 +0°C

0FT
-35 FT BELOW FIELD ELEV
// DA · LAST 24 HOURS loading…
FIELD ELEV35 FT OAT+15°C ISA DELTA+0°C PRESSURE ALT3 FT
// Performance equivalent Operating here right now feels like operating at KDVO (Marin County Airport - Gnoss Field, Novato, elev 2 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 · clear · no layers reported

FT 0 5k 10k 15k 20k 25k FRZ LVL · 7,611 FT KAPC ELEV · 35 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL7,611 ft VFR MARGINunlimited

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

13:36ZSUNRISE
20:11ZSOLAR NOON
02:46ZSUNSET
03:14ZCIVIL END
CURRENT07:19Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS03:14Z (past) DAY LENGTH13h 10m
Waning Gibbous
ILLUMINATION98% MOONRISE02:36Z MOONSET15:46Z FULL MOON IN28 days

// Nearest reporting stations

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

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