WxDecoder

US-6557 Weather Thirst Hill Heliport

San Clemente Island, CaliforniaElevation 1,936 ftHeliport
OFF-FIELD REFERENCE
Nearest report: KAVX · 31 NM N · 4 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 · KAVX
WIND
VRB@5
steady
VISIBILITY
10 SM
16.1 km
CEILING
None
no BKN/OVC layer

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
Crosswind calculator
No runway layout is available for US-6557. Enter a runway number or heading to estimate wind components.
FIELD CONDITIONS

Field elevation

Field elevation
1,936 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0109Z 6:09 PM
Sunrise
1406Z 7:06 AM
Loggable night
0134Z (6:34 PM local) → 1341Z (6:41 AM local)
end of evening to start of morning civil twilight
Position lights required
0109Z (6:09 PM local) → 1406Z (7:06 AM local)
sunset to sunrise (91.209)
Night passenger currency
0209Z (7:09 PM local) → 1306Z (6:06 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

Thirst Hill Heliport is in San Clemente Island, California. Field elevation 1,936 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
TypeHeliport
CHARTS & AIRSPACE
ICAO / IATAUS-6557
RegionCalifornia
CountryUnited States
Coordinates32.8833, -118.4512
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

US-6557 traffic patterns

2026-06-15 to 2026-06-15, 1 days observed · data 2026-10-23

Insufficient confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
0
AVG OPS/DAY
1
Operations trend (1 days)

Busiest day: Mon · Busiest month: Jun

FLEET MIX

Mostly rotorcraft.

TOP AIRCRAFT TYPES
›UNKN (Helicopter) · ~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

US-6557 has no on-field report. Nearest reporting station: KAVX (31 NM N, VFR).

KAVX Catalina Airport
31 NM N
VFR
KTOA Zamperini Field
56 NM N
VFR
KSNA John Wayne Orange County International Airport
56 NM NE
VFR
KLGB Long Beach International Airport
58 NM N
VFR
KSLI Los Alamitos Army Air Field
58 NM N
VFR
KOKB Oceanside Municipal Airport
59 NM E
VFR
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗US-6557 on OurAirports
FREQUENTLY ASKED
Does US-6557 have a METAR?
No on-field METAR is issued for US-6557. This page uses the nearest reporting station as a reference.
Does US-6557 have a TAF?
No TAF is issued directly for US-6557. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at US-6557?
US-6557 sits at 1,936 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for US-6557?
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.