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// Station · 58m ago

KSTS

Charles M. Schulz Sonoma County Airport
CAT VFR
WIND CALM
VIS 10+ SM
CEILING CLR
T/Td 9.4°C / 7.2°C
ALTIM 29.75 inHg
ELEV 128 FT
38.5090°N / 122.8130°W
LOCATION · Santa Rosa, US
N
WIND
000°0 kt
KSTS · 128 FT
© OSM · CartoDB

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

METRIC
NOW · 09Z
+6H
+12H
+18H
WIND
CALM
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
9 / 7
 
 
 
ALTIM
29.75"
 
 
 

// Interpretation

VFR with winds calm. 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 KSTS 270953Z AUTO 00000KT 10SM CLR 09/07 A2975 RMK AO2 SLP069 T00940072

KSTS · day 27 at 09:53 UTC · winds calm · visibility 10+ SM · temp 9°C / dewpoint 7°C · altimeter 29.75" Hg · automated station w/ precipitation discriminator · sea-level pressure 1006.9 mb

// Runway analysis · computed from current METAR wind

Wind CALM
ALL USABLE · WINDS CALM
N
WIND
000°calm
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

-300FT
-428 FT BELOW FIELD ELEV
// DA · LAST 24 HOURS ↘ -100 FT
1,500 450 -600
24h AGO18h12h6hNOW
FIELD ELEV128 FT OAT+9°C ISA DELTA-5°C PRESSURE ALT297 FT
// Performance equivalent Operating here right now feels like operating at KTRM (Jacqueline Cochran Regional Airport, Palm Springs, elev -115 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 · 4,875 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 LEVEL4,875 ft VFR MARGINunlimited

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

12:52ZSUNRISE
20:09ZSOLAR NOON
03:27ZSUNSET
03:57ZCIVIL END
CURRENT10:51Z DAYLIGHT REMAINING16h 35m VFR NIGHT BEGINS03:57Z (17h 06m) DAY LENGTH14h 34m
Waxing Gibbous
ILLUMINATION83% MOONRISE21:35Z MOONSET12:09Z FULL MOON IN4 days

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

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

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