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// STALE Observation is 1h 8m old — METAR cadence is typically hourly. A fresh report may be on its way.

// Station · 1h 8m ago · STALE

KSTS

Charles M. Schulz Sonoma County Airport
CAT LIFR
WIND 180° / 4 kt
VIS 0.25 SM
CEILING
T/Td 10°C / 9°C
ALTIM 29.92 inHg
ELEV 128 FT
38.5090°N / 122.8130°W
LOCATION · Santa Rosa, US
N
WIND
180°4 kt
KSTS · 128 FT
© OSM · CartoDB

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

METRIC
NOW · 13Z
+6H
+12H
+18H
WIND
180°/4
 
 
 
VIS
0.25 SM
 
 
 
CEILING
 
 
 
LAYERS
OVX002
 
 
 
T / Td
10 / 9
 
 
 
ALTIM
29.92"
 
 
 

// Interpretation

LIFR — visibility 0.25 SM. Light winds at 180°/4 kt, visibility 0.25 SM, ovx at 200 ft. LIFR is the lowest standard category. Would improve to IFR above 500 ft and 1 SM.

Loading TAF forecast narrative…

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

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// Raw observation METAR string + decoded

METAR KSTS 111353Z AUTO 18004KT 1/4SM VV002 10/09 A2992

KSTS · day 11 at 13:53 UTC · wind from 180° at 4 kt · visibility 0.25 SM · ovx at 200 ft · temp 10°C / dewpoint 9°C · altimeter 29.92" Hg

// Runway analysis · computed from current METAR wind

Wind 180° @ 4 kt
ALL USABLE · WINDS CALM
N
WIND
180°4 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS 4 ends
14 HDG 140° CALM 6,000'
32 HDG 320° CALM 6,000'
02 HDG 020° CALM 5,202'
20 HDG 200° CALM 5,202'
Pattern altitude: 1,128 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 -5°C

-400FT
-528 FT BELOW FIELD ELEV
// DA · LAST 24 HOURS ↘ -200 FT
2,100 600 -900
24h AGO18h12h6hNOW
FIELD ELEV128 FT OAT+10°C ISA DELTA-5°C PRESSURE ALT125 FT
// Performance equivalent Operating here right now feels like operating at KCLR (Cliff Hatfield Memorial Airport, Calipatria, elev -182 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 · clear · no layers reported

FT 0 5k 10k 15k 20k 25k FRZ LVL · 5,179 FT KSTS ELEV · 128 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL5,179 ft VFR MARGINunlimited

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

12:57ZSUNRISE
20:17ZSOLAR NOON
03:38ZSUNSET
04:09ZCIVIL END
CURRENT15:01Z DAYLIGHT REMAINING12h 36m VFR NIGHT BEGINS04:09Z (13h 07m) DAY LENGTH14h 40m
Waning Crescent
ILLUMINATION11% MOONRISE10:23Z MOONSET01:03Z FULL MOON IN18 days

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

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

© OpenStreetMap · CartoDB · OpenAIP
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