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4CL1
LYON
PrivatePVT

2 miles SE of RANCHO SANTA MARGARITA, CA
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LiveATC.net: Live Air Traffic - From Their Headsets to You
Operational
33° 36' 46"N 117° 35' 29"W
898' MSL
1898' MSL
14E
None Listed
SAN DIEGO (SAN)
LOS ANGELES
LOS ANGELES (ZLA)
11/27/25-12/25/25
KSNA (14nm) VFR
12:53 PM PST  
Haze
Broken 25,000'
Few 500'
6sm
74°F
51°F
29.93"Hg
330° 3kts
AO2 SLP134 T02330106 58024
METAR KSNA 182053Z 33003KT 6SM HZ FEW005 BKN250 23/11 A2993 RMK AO2 SLP134 T02330106 58024
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4CL1 FBOs

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FAA A/FD Pages

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Airport Diagrams

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Airport Minimums

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Departure Procedures

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Hotspot

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Instrument Approach

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Terminal Area Forecast

KSNA (14nm)
Thu, 12/18 9:49 AM PST
Thu, 12/18 10:00 AM PST - Fri, 12/19 10:00 AM PST
MVFR
10:00 AM PST - 5:00 PM PST
Mist
Broken 25,000'
Few 300'
5sm
220° 6kts
MVFR
5:00 PM PST - 1:00 AM PST
Haze
Few 500'
5sm
VRB° 3kts
LIFR
1:00 AM PST - 8:00 AM PST
Mist
Broken 300'
2sm
VRB° 3kts
MVFR
8:00 AM PST - 10:00 AM PST
Mist
Few 500'
3sm
VRB° 3kts
TAF KSNA 181749Z 1818/1918 22006KT 5SM BR FEW003 BKN250
   FM190100 VRB03KT 5SM HZ FEW005
   FM190900 VRB03KT 2SM BR BKN003
   FM191600 VRB03KT 3SM BR FEW005
4CL1
No NOTAM Available
No
UNATNDD
WILLIAM LYON
24331 COTO DE CAZA DRIVE
TRABUCO CANYON, CA 92679
Phone: 714-210-2945
MARK FOSTER, MARTIN AVIATION
19300 IKE JONES ROAD
SANTA ANA, CA 92707
Phone: (714) 210-2945
SAN DIEGO FSS (SAN)
Toll Free: 1-800-WX-BRIEF
N/A
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FOR PERIMETER LGTS CALL 714-210-2945.
N/A
N/A
No
No
None
No
None
None
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Runway H1

74 ft. x 40 ft.
 
TURF 
NONE 
PERI 
 
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  Runway H1 Runway
True Heading 74°254°
Traffic Pattern
Markings
Markings Condition
Latitude 33° 36' 46"N N/A
Longitude 117° 35' 29"W N/A
Elevation 898' --
Threshold Crossing Height -- --
Visual Glide Path Angle -- --
Visual Slope Indicator -- --
Approach Lights
Centerline Lights
Runway End Identifier Lights
A110-1FOR CD CTC LOS ANGELES ARTCC AT 661-575-2079.
LYON (IATA: 4CL1) is a private heliport located in RANCHO SANTA MARGARITA, CA.