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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)
4/17/25-5/15/25
KSNA (14nm) VFR
10:53 PM PDT  
Broken 4,400'
Scattered 3,200'
Few 2,500'
10sm
65°F
55°F
29.84"Hg
190° 9kts
AO2 SLP104 LAST T01830128 10189 20178 51013
METAR KSNA 140553Z 19009KT 10SM FEW025 SCT032 BKN044 18/13 A2984 RMK AO2 SLP104 LAST T01830128 10189 20178 51013
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4CL1 FBOs

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Terminal Area Forecast

KSNA (14nm)
Mon, 10/13 4:44 PM PDT
Mon, 10/13 5:00 PM PDT - Tue, 10/14 5:00 PM PDT
VFR
5:00 PM PDT - 8:00 PM PDT
Broken 3,500'
6sm
180° 14kts
Gusts 22kts
VFR
8:00 PM PDT - 1:00 AM PDT
Showers in vicinity
Broken 3,500'
Scattered 2,500'
6sm
160° 11kts
MVFR
1:00 AM PDT - 5:00 AM PDT
Showers in vicinity
Broken 2,500'
6sm
150° 10kts
MVFR
5:00 AM PDT - 10:00 AM PDT
Light Showers and Rain
Overcast 1,500'
5sm
170° 15kts
Gusts 28kts
MVFR
10:00 AM PDT - 12:00 PM PDT
Rain
Overcast 1,500'
4sm
220° 15kts
Gusts 25kts
MVFR
12:00 PM PDT - 5:00 PM PDT
Showers in vicinity
Broken 2,500'
6sm
220° 9kts
TAF KSNA 132344Z 1400/1424 18014G22KT P6SM BKN035
   FM140300 16011KT P6SM VCSH SCT025 BKN035
   FM140800 15010KT P6SM VCSH BKN025
   FM141200 17015G28KT 5SM -SHRA OVC015
   FM141700 22015G25KT 4SM RA OVC015
   FM141900 22009KT P6SM VCSH BKN025
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
None
None
None

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.