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// Station · 21m ago

K0S9

Jefferson County International Airport
CAT VFR
WIND 300° / 5 kt G10
VIS 10+ SM
CEILING CLR
T/Td 26°C / 5°C
ALTIM 30.05 inHg
ELEV 108 FT
48.0538°N / 122.8110°W
LOCATION · Port Townsend, US
N
WIND
300°5 kt
K0S9 · 108 FT
© OSM · CartoDB

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

METRIC
NOW · 00Z
+6H
+12H
+18H
WIND
300°/5G10
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
26 / 5
 
 
 
ALTIM
30.05"
 
 
 

// Interpretation

VFR with light winds at 300°/5 kt, gusting 10. 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.

Loading TAF forecast narrative…

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

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// Raw observation METAR string + decoded

METAR K0S9 150055Z AUTO 30005G10KT 10SM CLR 26/05 A3005 RMK AO2

K0S9 · day 15 at 00:55 UTC · wind from 300° at 5 kt, gusts to 10 kt · visibility 10+ SM · temp 26°C / dewpoint 5°C · altimeter 30.05" Hg · automated station w/ precipitation discriminator

// Runway analysis · computed from current METAR wind

Wind 300° @ 5 ktG10
1 USABLE · 1 AVOID
N
WIND
300°5G10 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 1 usable
27 HDG 270° H4 kt X2 kt RIGHT PRIMARY · 3,000'
TAILWIND ENDS · AVOID 1 ends
09 HDG 090° T4 kt X3 kt LEFT
Pattern altitude: 1,108 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 +11°C

1,300FT
+1,192 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↗ +300 FT
1,700 150 -1,400
24h AGO18h12h6hNOW
FIELD ELEV108 FT OAT+26°C ISA DELTA+11°C PRESSURE ALT-25 FT
// Performance equivalent Operating here right now feels like operating at KOMK (Omak Airport, Omak, elev 1,305 ft) on a standard ISA day.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+13%
-9%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+9%
-6%
Light jetCJ4, Phenom 300, M2
+5%
-4%

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 · clear · no layers reported

FT 0 5k 10k 15k 20k 25k FRZ LVL · 13,239 FT K0S9 ELEV · 108 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL13,239 ft VFR MARGINunlimited

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

12:27ZSUNRISE
20:18ZSOLAR NOON
04:09ZSUNSET
04:48ZCIVIL END
CURRENT01:16Z DAYLIGHT REMAINING2h 52m VFR NIGHT BEGINS04:48Z (3h 31m) DAY LENGTH15h 41m
New Moon
ILLUMINATION0% MOONRISE12:40Z MOONSET04:21Z FULL MOON IN15 days

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

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

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