ATIS Alerts

Charles M. Schulz Sonoma County Airport (KSTS) Aviation Weather, METAR, TAF & ATIS Alerts

Live aviation weather for Charles M. Schulz Sonoma County Airport in Santa Rosa, CA, including METAR, TAF, flight category, wind, visibility, ceiling, altimeter, runway crosswinds, and Telegram airport alerts.

Charles M. Schulz Sonoma County Airport (KSTS) is a regional airport serving Santa Rosa, CA at 128 ft. KSTS reports its own METAR and publishes a TAF — decoded live on this page as flight category, wind, visibility, ceiling and altimeter. Its 4 runways (02, 14, 20, 32) — longest 6,000 ft — are checked against the current wind in the crosswind table below. The official FAA airport diagram is at the bottom of the page. Track KSTS in the ATIS Alerts Telegram bot to get a message when a new METAR changes the picture — flight category, wind, or ceiling past your selected minimums.

VFR
Observed 0353Z (8:53 PM PDT)live · refreshes every 60s
Wind
160° 5 kt
Visibility
10+ sm
Ceiling
Unlimited
Altimeter
29.84"
Temp / Dew
21°C / 70°F
dew 12°C

Wind from the south-southeast (160°) at 5 kt, visibility 10+ statute miles, no cloud data, temperature 21°C (70°F), altimeter 29.84 inHg. Conditions are Visual Flight Rules (VFR).

Raw METAR
METAR KSTS 290353Z AUTO 16005KT 10SM CLR 21/12 A2984 RMK AO2 SLP098 T02110122

What changed at KSTS?

Since the 0253Z (7:53 PM PDT) report — compared automatically against the latest METAR.

  • Temperature down 3°C.

This is exactly what ATIS Alerts watches for you — get a Telegram message when KSTS's weather changes, free →

Current pilot readout for KSTS

KSTS is currently VFR with winds from 160° at 5 knots, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 02, about 4 knots. Density altitude is approximately 1,000 ft (field elevation 128 ft). Review the latest TAF below for forecast changes before departure.

⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →

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Runway wind check

Estimated head/tailwind and crosswind for each runway end from the current reported wind.

Use this section to quickly compare current wind alignment across available runways at KSTS. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.

RunwayHead / TailCrosswind
14FAV5 kt head0 kt
203 kt head4 kt left
023 kt tail4 kt right
325 kt tail0 kt

Open the crosswind calculator — try your own wind and runway numbers →

24-hour trend

Wind, ceiling and flight category over the last 24 hours.

Wind (kt)Gusts (kt)Bottom strip — flight category:VFRMVFRIFRLIFRNo report
071404Z15Z03Z

Over the last 23 h: wind 35 kt, ceiling unlimitedunlimited.

KSTS weather radar

Live NEXRAD + lightning, with a 4-hour future-radar forecast — drag to pan, tap ⚡ to toggle lightning.

Live weather radar around Charles M. Schulz Sonoma County Airport in Santa Rosa, CA: the NOAA/NWS NEXRAD composite updates about every five minutes, with NOAA lightning strike density overlaid. The loop plays the past 50 minutes, then continues into a future-radar forecast (+1 to +4 hours, NOAA HRRR model) so you can see where precipitation around KSTS is headed.

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Loading radar…

Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © OpenStreetMap © CARTO

Forecast frames (amber label) are HRRR model guidance, not observed radar. Lightning strike density appears as a blue-white glow when strikes are detected in view. Radar and lightning coverage are limited in parts of Alaska, Hawaii, and offshore areas. Not for navigation.

Pilot reports (PIREPs) within 100 NM of KSTS

Reported by pilots in flight over the past 6 hours — via aviationweather.gov.

PIREP0352Z (8:52 PM PDT) · 89 NM E of KSTS · 6,500 ft MSL · C172
Show raw report
SCK UA /OV LIN /TM 0352 /FL065 /TP C172 /SK SKC /TA 20 /WV 26003KT /TB NEG /IC NEG /RM HZ LYR BLO NORTH TO COMANCHE RESEVOIR WEST TO RIVER DELTA
SCK UAHeader — reporting station and UA: a routine pilot report.
OV LINLocation — fix or navaid, optionally with a radial and distance in NM.
TM 0352Reported at 03:52 UTC.
FL065Altitude: 6,500 ft MSL.
TP C172Aircraft type reporting.
SK SKCSky condition — cloud bases and tops in hundreds of feet MSL.
TA 20Outside air temperature, °C.
WV 26003KTWind (direction/speed) or wind-shear remarks.
TB NEGTurbulence: none reported.
IC NEGIcing: none reported.
RM HZ LYR BLO NORTH TO COMAN…Remarks.

⚠️ PIREPs are unverified pilot reports. Not for operational use — conditions change between reports.

Recent aviation weather trends at KSTS

From ATIS Alerts' hourly weather history.

Over the past 24 hours, KSTS reported mostly VFR across 25 observations, with 0 flight-category changes. Wind most often came from the S.

Last 24 hours
VFR 100%
Wind avg/max: 4/12 kt
Max gust:
Lowest ceiling:
Lowest vis:
Prevailing wind: S
Category changes: 0
Last 7 days
VFR 82%MVFR 9%IFR 3%LIFR 7%
Wind avg/max: 5/15 kt
Max gust: 18 kt
Lowest ceiling: 100 ft
Lowest vis: 0.25 sm
Prevailing wind: SE
Category changes: 15

Most recent change: LIFRVFR

Active Runway - past 30 days
14
81%
20
19%
02
0%
32
0%

TAF — Terminal Aerodrome Forecast

Issued 2338Z (4:38 PM PDT)

TAF KSTS 282338Z 2900/2924 25009KT P6SM SKC FM290600 19004KT P6SM SKC

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Airport facts

Reference data from the OurAirports dataset.

Type
Regional airport
ICAO
KSTS
IATA
STS
FAA LID
STS
City
Santa Rosa
State
California
Country
United States
Elevation
128 ft
Coordinates
38.5090, -122.8130
Runways
4
Longest runway
6,000 ft
Weather reporting
Reports METAR
TAF
Published
ATIS
120.55 MHz
CTAF
118.5 MHz
Time zone
America/Los_Angeles
Next sunset
22h 52m

Run a flight school, FBO, or club here? Embed KSTS's live status on your website — free →

Nearby airports

Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.

RC flying fields nearby

AMA model-aircraft club fields around this airport — live wind, crosswind & flyability on each page.

All RC flying fields →

See all California airports →

Historical Flying Weather

2006–2025 · ATIS Alerts Flying Weather Index

Based on historical observations from 2006–2025, KSTS reported VFR conditions during about 78.2% of valid daylight observations, with an estimated 287 VFR flying days a year. June had the most VFR weather; December had the most instrument conditions. Surface winds averaged 4.0 kt, calm 34.4% of the time.

VFR Score
51
Wind Score
90
Reliability Score
46
National VFR rank
#634 of 1,400
Regional rank
#18
State rank
#55
Full historical breakdown
Daylight VFR
78.2%
MVFR
9.6%
IFR
8.2%
LIFR
9.4%
Est. VFR days/yr
287
Most VFR month
June
Fewest VFR month
December
Median ceiling
1,700 ft
Median visibility
10 sm
Calm wind
34.4%
Median wind
3 kt
Gusty hours
4.3%
Crosswind >15 kt
0.0%
Fog/mist days/yr
232
Thunderstorm days/yr
2
Summer density alt
1,452 ft

Flight category by month

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDec
VFRMVFRIFRLIFR
KSTS monthly flight-category distribution, 2006–2025
MonthVFR %MVFR %IFR %LIFR %
Jan62.113.79.414.8
Feb72.112.37.38.2
Mar74.512.17.06.5
Apr80.310.35.04.4
May78.29.27.45.1
Jun82.16.56.84.6
Jul74.05.011.69.4
Aug70.76.110.812.5
Sep75.96.87.310.1
Oct75.09.75.89.5
Nov69.910.57.711.8
Dec59.113.411.615.9

Average wind by month

036JanFebMarAprMayJunJulAugSepOctNovDec
KSTS average wind by month, 2006–2025
MonthMean wind (kt)
Jan3.1 kt
Feb4.0 kt
Mar4.4 kt
Apr4.7 kt
May5.1 kt
Jun5.0 kt
Jul4.7 kt
Aug4.2 kt
Sep3.6 kt
Oct3.3 kt
Nov2.9 kt
Dec3.0 kt

Historical summary of past observations — not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.

KSTS airport diagram

Official FAA taxiway and runway layout. Tap to zoom.

The FAA airport diagram for Charles M. Schulz Sonoma County Airport in Santa Rosa, CA shows the runway and taxiway layout across 4 runways, ramp areas, and hold-short positions — review it before taxiing at an unfamiliar field.

Official FAA airport diagram · d-TPP cycle 2608 · Not for navigation. Download the official FAA PDF ↗

KSTS weather — frequently asked

What runways are available at KSTS?+

KSTS has 4 runways — 02, 14, 20, 32; the longest is 6,000 ft. This page computes the live crosswind for each runway end from the current wind.

Does KSTS report its own weather?+

Yes — Charles M. Schulz Sonoma County Airport has its own weather station and publishes METAR observations, which this page decodes live.

Does KSTS have a TAF?+

Yes — the TAF is shown on this page below the current conditions.

Does KSTS broadcast D-ATIS?+

No — KSTS does not broadcast D-ATIS. Alerts for KSTS from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR instead.

Where can I find the KSTS airport diagram?+

The official FAA airport diagram for Charles M. Schulz Sonoma County Airport (KSTS) is shown on this page — it maps the runway and taxiway layout, ramps, and hold-short lines. Tap it to zoom, or download the official FAA PDF free from the link under the diagram (updated every 28-day FAA charting cycle).

Pilot PIREPs for Charles M. Schulz Sonoma County Airport (KSTS)

Community-submitted

Community-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.

Read recent community-submitted pilot notes for Charles M. Schulz Sonoma County Airport, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.

⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.

No Pilot PIREPs have been submitted for KSTS yet. Recently flew here? Help the next pilot by leaving a quick airport note.

Pilot PIREPs are community pilot notes for situational awareness only — not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.

From the ATIS Alerts team

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⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

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