KSTS/STS METAR & TAF Charles M. Schulz Sonoma County Airport

Santa Rosa, CaliforniaElevation 128 ftMedium airport
CURRENT STATUS
VFRMore than 1 hour old
No ceiling, visibility 10 SM.
FLIGHT CATEGORY
VFR
ceiling & visibility
WIND
190@3
steady
VISIBILITY
10 SM
16.1 km
CEILING
None
no BKN/OVC layer
DENSITY ALT
147 ft
+19 ft vs field
ACTIVE NWS ALERTS

Active weather alerts

Coastal Flood AdvisoryMinor · Expected · Likely
26 1804Z to 29 2200Z
San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
* WHAT...Up to 2.1 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. * WHERE...Bay Shoreline locations of San Pablo Bay, San Francisco Bay, and Monterey Bay. * WHEN...Until 3 PM PDT Thursday. * IMPACTS...High tides will result in flooding of low-lying infrastructure, isolated road closures, and coastal erosion. Rising tides will bring water …
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

Alerts from the National Weather Service. For situational awareness only; always confirm against an official briefing.

CURRENT METAR

Decoded observation

Observed 0153Z (6:53 PM local) · More than 1 hour old

KSTS is currently VFR. Winds are from the south at 3 knots. Visibility is 10 statute miles. There is no ceiling.

WIND
190° at 3 kt
Steady.
VISIBILITY
10 statute miles
16.1 km, good.
CEILING & SKY
CLR
FEW and SCT layers are not ceilings.
TEMP / DEWPOINT
16°C / 9°C
61°F / 48°F. 7°C spread.
ALTIMETER
30.05 inHg
1017.6 hPa, near standard.
WEATHER & HAZARDS
No significant hazards
No precipitation or obscuration reported.

Codes in this report: CLR RMK AO2

Hover or tap any group for a plain-English explanation.

REMARKS: DECODED
AO2
automated station with a precipitation discriminator (can tell rain from snow)
SLP171
sea-level pressure 1017.1 hPa
T01610094
precise temperature 16.1°C, dew point 9.4°C
TERMINAL AERODROME FORECAST

TAF timeline

Issued 2340Z (4:40 PM local) · valid to 0000Z (5:00 PM local)

KSTS forecast starts VFR at 00Z. Conditions are roughly steady over the period.

VFR
VFR
VFR
0000Z5:00 PM0448Z9:48 PM0936Z2:36 AM1424Z7:24 AM1912Z12:12 PM0000Z5:00 PM

Codes in this report: P6SM FEW SKC

Tap any group to decode it.

FAA: no delays reported at STS.

Source: FAA System Operations (ASWS). Operational status only; verify with official FAA sources and NOTAMs.

SUGGESTED RISK · TRAINING USE

Suggested risk level: Low

›No significant weather concerns in the current report.

A suggested risk level for training and situational awareness only, not a go/no-go authority. Verify with official sources and apply your personal minimums.

FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

Current aviation conditions show flight category VFR, wind from 190° at 3 kt, visibility 10 SM, ceiling none. Forecast suggests tonight mostly clear, low near 40F, 0% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Clear 40 WSW 9 kt – 0%
Tuesday Mostly Sunny 68/39 NNW 10 kt – 0%
Wednesday Sunny 69/39 NW 7 kt – 0%
Thursday Patchy Fog then Partly Sunny 67/37 W 4 kt – 0%
Friday Patchy Frost then Mostly Sunny 63/35 WNW 6 kt – 8%
Saturday Slight Chance Light Rain 62/36 WNW 4 kt – 15%
Sunday Patchy Frost then Sunny 66/36 NNW 5 kt – 4%
Monday Mostly Sunny then Slight Chance Light Rain 66 E 4 kt – 24%

Source: National Weather Service (office MTR). Forecast issued 0255Z.

Radar

Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.

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RUNWAYS & WIND
2 runways · crosswind ranking
ON-FIELD METAR
NESW02201432 190°190°3 kt190°190° 3190°
READING THE BARB · SWIPE FOR MORE →
Calm
5 kt
10 kt
15 kt
20 kt
25 kt
30 kt
35 kt
40 kt
45 kt
50 kt
65 kt
75 kt
100 kt
105 kt
Half feather = 5 kt, full = 10 kt, filled pennant = 50 kt; add them up. The staff points the direction the wind blows from.
WIND USED
190° at 3 kt
Components computed from the current on-field METAR wind.
RECOMMENDED
RWY 203 kt headwind · 1 kt crosswind
RUNWAYS BY WIND · best end
20
HEAD
3 kt
CROSS
1 kt L
BEST
14
HEAD
3 kt
CROSS
2 kt R
OK
32
HEAD
3 kt tail
CROSS
2 kt L
OK
02
HEAD
3 kt tail
CROSS
1 kt R
OK
Components are estimates from the current METAR wind and runway heading. Verify with the Chart Supplement and NOTAMs.
RUNWAYS

Runway detail & declared distances

2 runways · longest 6,000 ft

02/20
Dimensions
5,202 x 100 ft
Surface
Asphalt (fair)
Edge lights
MED
RWY 0229°T
Landing length (LDA)4,802 ft
TORA / TODA / ASDA5,202 / 5,202 / 4,802 ft
VGSIPAPI (P2L)
Traffic patternLeft
RWY 20209°T
Landing length (LDA)5,202 ft
TORA / TODA / ASDA5,202 / 5,202 / 5,202 ft
VGSIPAPI (P4L)
Traffic patternLeft
14/32
Dimensions
6,000 x 150 ft
Surface
Asphalt (fair)
Edge lights
HIGH
RWY 14157°T
Landing length (LDA)5,880 ft
TORA / TODA / ASDA6,000 / 6,000 / 5,880 ft
REILYes
VGSIPAPI (P4R)
Traffic patternRight
RWY 32337°T
Landing length (LDA)6,000 ft
TORA / TODA / ASDA6,000 / 6,000 / 6,000 ft
ILSILS
Approach lightsMALSR
Traffic patternLeft

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

FIELD CONDITIONS

Performance & density altitude

Density altitude
147 ft
Pressure altitude
-2 ft
Field elevation
128 ft MSL
Temperature
16°C (61°F)
Dewpoint
9°C (48°F)
Altimeter
30.05 inHg

Density altitude estimates how the aircraft performs versus standard atmosphere. Higher density altitude reduces climb performance and increases takeoff distance.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0118Z 6:18 PM
Sunrise
1432Z 7:32 AM
Loggable night
0145Z (6:45 PM local) → 1405Z (7:05 AM local)
end of evening to start of morning civil twilight
Position lights required
0118Z (6:18 PM local) → 1432Z (7:32 AM local)
sunset to sunrise (91.209)
Night passenger currency
0218Z (7:18 PM local) → 1332Z (6:32 AM local)
1 hr after sunset to 1 hr before sunrise (61.57(b))

FAA definitions, shown in Zulu with airport-local time. Verify for your operation.

AIRPORT INFORMATION

Facility & services

Charles M. Schulz Sonoma County Airport is in Santa Rosa, California. Field elevation 128 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPublicly owned
UseOpen to the public
TypeMedium airport
Airline serviceYes
ManagerJON G. STOUT
Manager phone707-565-7243
AttendedDaily, 0600–2200
CHARTS & AIRSPACE
ICAO / IATAKSTS / STS
SectionalSAN FRANCISCO
Center (ARTCC)OAKLAND
Flight service (AFSS)OAKLAND
RegionCalifornia
CountryUnited States
Coordinates38.5090, -122.8130
Distance from city6 NM NW
SERVICES & LIGHTING
Fuel100LL · Jet A-1
Control towerTowered
Field lightingSee remarks
BeaconSunset to sunrise · White-green (lighted land airport)
CTAF118.500
UNICOM122.950
FREQUENCIES

Communications

127.8
NORCAL APP/DEP
A/D
120.55
ATIS
ATIS
118.5
CTAF
CTAF
121.9
GND
GND
118.5
SANTA ROSA TWR
TWR
122.95
UNICOM
UNIC
122.950
UNICOM
UNICOM

Not all tower/ground/approach frequencies are in our datasets. Verify with the FAA Chart Supplement.

AIRCRAFT ACTIVITY

KSTS traffic patterns

2026-06-12 to 2026-10-25, 71 days observed · data 2026-10-25

High confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
81.1
AVG OPS/DAY
115.3
Activity trend over 18 days: falling, from 159 to 98 operations per dayOperations trend (18 days)

Busiest day: Fri · Busiest month: Jul

FLEET MIX
Unknown 68%Piston single 13%Airliner 9%Jet 4%Turboprop 3%Helicopter 2%

Fleet composition unclear from available data.

TOP AIRCRAFT TYPES
›UNKN (Unknown) · ~1185 landings/mo
›C172 (Piston single) · ~153 landings/mo
›E75L (Airliner) · ~101 landings/mo
›B737 (Airliner) · ~43 landings/mo
›P28A (Piston single) · ~34 landings/mo
LIKELY BASED AIRCRAFT
Low-confidence estimate

Aircraft likely based near this airport (estimate), mostly single-engine piston aircraft.

›C172 (Piston single)
›UNKN (Unknown)
›P28A (Piston single)
›RV12 (Unknown)
›V10 (Unknown)

This is an estimate based on repeated flight patterns, not registration data. Do not rely on it to identify specific aircraft or owners.

Data limitations (4)
›ADS-B coverage is incomplete; counts are an observed lower bound, not official totals.
›Some aircraft do not transmit usable ADS-B and are not counted.
›Aircraft types and based estimates are inferred and may be wrong.
›This is not official ATC, FAA, or airport data.
NEARBY AIRPORTS

Weather reference stations

Current flight category at nearby reporting stations.

AIRPORT REMARKS

Operational remarks

›EXISTED PRIOR TO 5/15/59.
›TWY Z BTN RWY 14/32 & TWY A LMTD TO S-20, D-40.
›DEER ON AND INVOF ARPT.
›(LAHSO_ALD, RWY 02) CTC ATCT FOR AVBLTY.
›BE ALERT FOR NUMEROUS FLOCKS OF BIRDS ON AND INVOF AIRPORT, INCLUDING SEASONALLY MIGRATORY GEESE.
›PCR VALUE: 454/F/C/X/T
›PCR VALUE: 309/F/C/X/T
›PAPI UNUSBL BYD 5 DEG LEFT OF CNTRLN
›FOR NOISE ABATEMENT PROCS PLEASE VISIT THE ARPT WEBSITE AT FLYSTS.COM
›WHEN ATCT CLSD, FOR CD CTC OAKLAND ARTCC AT 510-745-3380.
›100LL AVBL 24 HRS WITH CREDIT CARD.
›JET A1 AVBL DURG ATTENDANCE HRS.
›WHEN ATCT CLSD ACTVT REIL RWY 14; MALSR RWY 32; PAPI RWY 02, 20, & 14; HIRL RWY 14/32; MIRL RWY 02/20; TWY LGTS - CTAF.
›TPA FOR SMALL ACFT 1,000 FT AGL AND TPA FOR LARGE ACFT 1,500 FT AGL.
›SAMONAE CARTER, ASST ARPT MGR, PHONE 707- 565-7245.
FREQUENTLY ASKED
Does KSTS have a METAR?
Yes. KSTS has a current METAR observation, decoded into plain English on this page.
Does KSTS have a TAF?
Yes, a TAF is issued for KSTS; the decoded forecast timeline is shown above.
What is the field elevation at KSTS?
KSTS sits at 128 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for KSTS?
No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.
This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.