// Station · 23m ago

KSTS

Charles M. Schulz Sonoma County Airport

CAT LIFR

WIND CALM

VIS 5.0 SM

CEILING OVC at 400 ft

T/Td 15°C / 13.3°C

ALTIM 30.07 inHg

WX BR

ELEV 128 FT

38.5090°N / 122.8130°W

LOCATION · Santa Rosa, US

WIND

000°0 kt

KSTS · 128 FT

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

METRIC

NOW · 15Z

+6H

+12H

+18H

WIND

CALM

VIS

5.0 SM

CEILING

OVC004

LAYERS

OVC004

T / Td

15 / 13

ALTIM

30.07"

// Interpretation

LIFR — ceiling 400 ft. Winds calm, visibility 5.0 SM, overcast at 400 ft. Reported weather: mist (BR). Mist is water droplets thinning visibility to between 5/8 and 6 SM — the moist, lighter cousin of fog. 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 251553Z 00000KT 5SM BR OVC004 15/13 A3007 RMK AO2 SLP175 T01500133

KSTS · day 25 at 15:53 UTC · winds calm · visibility 5.0 SM · overcast at 400 ft · temp 15°C / dewpoint 13°C · altimeter 30.07" Hg · weather: mist (BR) · automated station w/ precipitation discriminator · sea-level pressure 1017.5 mb

// Runway analysis · computed from current METAR wind

Wind CALM

ALL USABLE · WINDS CALM

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 +0°C

-0FT

-128 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV128 FT OAT+15°C ISA DELTA+0°C PRESSURE ALT-25 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 · 1 reported · highest to lowest

// Reported layers (highest → lowest)

OVC004

Overcast · base 400 ft AGL · 8 oktas

// Computed

CEILING400 ft AGL HIGHEST LAYER400 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL7,704 ft VFR MARGIN-2,600 ft

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

13:35ZSUNRISE

20:14ZSOLAR NOON

02:53ZSUNSET

03:21ZCIVIL END

CURRENT16:16Z DAYLIGHT REMAINING10h 37m VFR NIGHT BEGINS03:21Z (11h 04m) DAY LENGTH13h 17m

Waxing Gibbous

ILLUMINATION94% MOONRISE23:38Z MOONSET12:56Z FULL MOON IN2 days

// Nearest reporting stations

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

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