WxDecoder

CL85 Weather Sonoma Raceway Heliport Pad 1

Sonoma, CaliforniaElevation 115 ftHeliport
OFF-FIELD REFERENCE
Nearest report: KDVO · 5 NM W · 43 min old
No ceiling, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KDVO
WIND
Calm
no steady wind
VISIBILITY
10 SM
16.1 km
CEILING
None
no BKN/OVC layer
ACTIVE NWS ALERTS

Active weather alerts

Coastal Flood AdvisoryMinor · Expected · Likely
25 1606Z 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 1.9ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. * WHERE...Bay Shoreline locations of San Francisco Bay, Monterey Bay and Big Sur Coast. * 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 an…
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.

FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

No aviation METAR is published for this airport. The nearest National Weather Service station reports wind calm, visibility 10 SM, temperature 13C. Treat this as supplemental, not an aviation observation. Forecast suggests today partly sunny, high near 68F, low near 46F, 1% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

DayConditionsTemp FWindGustsPrecipPilot note
Today Partly Sunny 68/46 SSE 2 kt – 1%
Monday Sunny 65/42 W 12 kt 18 kt 1%
Tuesday Patchy Fog then Sunny 66/44 WSW 5 kt – 0%
Wednesday Areas Of Fog then Partly Sunny 63/46 W 3 kt – 2%
Thursday Patchy Fog then Mostly Sunny 63/43 W 6 kt – 12%
Friday Mostly Sunny then Slight Chance Light Rain 60/42 WNW 6 kt – 24%
Saturday Chance Light Rain 60/42 WNW 3 kt – 26%

Source: National Weather Service (office MTR). Forecast issued 1737Z.

Radar

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

OUR HEADSET PICK · NOT SPONSORED

DC

David Clark DC ONE-X

Not sponsored, just the headset we'd buy ourselves: the DC ONE-X, with hybrid noise canceling, Bluetooth, and 30+ hour battery. And David Clark's A+ customer service is the real reason we recommend them.

Visit David Clark
RUNWAYS & WIND
Crosswind calculator
No runway layout is available for CL85. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 75 ft

H1
Dimensions
75 x 83 ft
Surface
Asphalt
RWY H1

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

FIELD CONDITIONS

Field elevation

Field elevation
115 ft MSL

Density and pressure altitude need a current temperature and altimeter from the METAR.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0118Z 6:18 PM
Sunrise
1429Z 7:29 AM
Loggable night
0145Z (6:45 PM local) → 1402Z (7:02 AM local)
end of evening to start of morning civil twilight
Position lights required
0118Z (6:18 PM local) → 1429Z (7:29 AM local)
sunset to sunrise (91.209)
Night passenger currency
0218Z (7:18 PM local) → 1329Z (6:29 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

Sonoma Raceway Heliport Pad 1 is in Sonoma, California. Field elevation 115 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeHeliport
ManagerJERE STARKS
Manager phone707-334-9801
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATACL85
SectionalSAN FRANCISCO
Center (ARTCC)OAKLAND
Flight service (AFSS)OAKLAND
RegionCalifornia
CountryUnited States
Coordinates38.1582, -122.4563
Distance from city9 NM SW
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

CL85 traffic patterns

2026-06-18 to 2026-10-15, 4 days observed · data 2026-10-23

Low confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
1
AVG OPS/DAY
2
Operations trend (1 days)

Busiest day: Sun · Busiest month: Oct

FLEET MIX
Helicopter 50%Unknown 50%

Mostly rotorcraft.

TOP AIRCRAFT TYPES
›AS65 (Helicopter) · ~1 landings/mo
›UNKN (Unknown) · ~1 landings/mo
›B06 (Helicopter) · ~0 landings/mo
›C172 (Piston single) · ~0 landings/mo
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

CL85 has no on-field report. Nearest reporting station: KDVO (5 NM W, VFR).

KDVO Marin County Airport - Gnoss Field
5 NM W
VFR
KAPC Napa County Airport
9 NM E
VFR
KCCR Buchanan Field
21 NM SE
VFR
KSUU Travis Air Force Base
26 NM E
VFR
KSTS Charles M. Schulz Sonoma County Airport
27 NM NW
VFR
KOAK Oakland San Francisco Bay Airport
29 NM SE
VFR
AIRPORT REMARKS

Operational remarks

›PROVIDED VFR OPNS ONLY; PR USE ONLY; RTES OF INGRESS AND EGRESS ESTAB & MAINTAINED OBSTN FREE. INGRESS/EGRESS SHALL NOT CONFLICT WITH HELIPAD #2 WHICH WAS FILED AT SAME TIME AS THIS HELIPAD #1 PROPOSAL; HELIPAD SHOULD BE LIMITED TO DAY TIME OPNS UNLESS NIGHT LIGHTING EQUIP IS INSTALLED.
›OWNER DESIRES ARPT NOT BE CHARTED.
›FOR CD CTC OAKLAND ARTCC AT 510-745-3380.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗CL85 on OurAirports
FREQUENTLY ASKED
Does CL85 have a METAR?
No on-field METAR is issued for CL85. This page uses the nearest reporting station as a reference.
Does CL85 have a TAF?
No TAF is issued directly for CL85. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at CL85?
CL85 sits at 115 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for CL85?
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.