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CASTLE - Airport Diagram
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KMER
CASTLE
PublicPUB

3 miles NE of ATWATER, CA
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LiveATC.net: Live Air Traffic - From Their Headsets to You
Operational
37° 22' 50"N 120° 34' 05"W
190' MSL
1190' MSL
13E
JET A, JET A-1, 100LL
RANCHO MURIETA (RIU)
SAN FRANCISCO
OAKLAND (ZOA)
4/17/25-5/15/25
KMER VFR
1:55 PM PST  
Clear
10sm
32°F
32°F
N/A
330° 20kts
Gusts 22kts
METAR KMER 082155Z 33020G22KT 10SM CLR
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Weather and Advisory

ATIS 124.475

Ground

GND/P 133.575

Tower

LCL/P 118.175

FAA A/FD Pages

Airport Diagrams

Airport Minimums

Instrument Approach

Hotspot

Terminal Area Forecast

KMER
Thu, 1/8 9:20 AM PST
Thu, 1/8 10:00 AM PST - Fri, 1/9 10:00 AM PST
VFR
10:00 AM PST - 11:00 AM PST
Sky Clear
6sm
320° 13kts
VFR
11:00 AM PST - 7:00 PM PST
Sky Clear
6sm
330° 18kts
Gusts 24kts
VFR
7:00 PM PST - 5:00 AM PST
Sky Clear
6sm
330° 10kts
MVFR
5:00 AM PST - 7:00 AM PST
Mist
Sky Clear
4sm
080° 2kts
LIFR
7:00 AM PST - 9:00 AM PST
Fog
Sky Clear
0.25sm
080° 2kts
MVFR
9:00 AM PST - 10:00 AM PST
Haze
Sky Clear
4sm
120° 3kts
TAF KMER 081720Z 0818/0918 32013KT P6SM SKC
   FM081900 33018G24KT P6SM SKC
   FM090300 33010KT P6SM SKC
   FM091300 08002KT 4SM BR SKC
   FM091500 08002KT 1/4SM FG SKC
   FM091700 12003KT 4SM HZ SKC AMD NOT SKED
KMER
EffectiveExpiresCategoryNOTAM
Domestic
1/5/26
1813Z
1/16/26
2359Z
!MER 01/001 MER SVC AUTOMATED WX BCST SYSTEM U/S 2601051813-2601162359
12/31/25
0532Z
3/31/26
0500Z
!MER 12/005 MER OBST TOWER LGT (ASR 1239176) 372535.00N1202628.90W (6.6NM ENE MER) 794.0FT (350.1FT AGL) U/S 2512310532-2603310500
12/17/25
1949Z
4/18/26
2359Z
!MER 12/003 MER SVC AUTOMATED WX BCST SYSTEM U/S 2512171949-2604182359
9/26/25
1443Z
Runway!MER 09/013 MER RWY 31 SEQUENCED FLG LGT U/S 2509261443-2603262111EST
6/12/25
1400Z
!MER 06/002 MER SVC PCL CHANGED TO 118.175 2506121400-PERM
Yes
MON-FRI 0800-1700
MERCED COUNTY
2222 M STREET
MERCED, CA 95340
Phone: 209-385-7686
GEORGE CLOVER
2222 M STREET
MERCED, CA 95340-4180
Phone: 209-617-5399
RANCHO MURIETA FSS (RIU)
Toll Free: 1-800-WX-BRIEF
MER
--
WHEN ATCT CLSD ACTVT HIRL RY 13/31; ALSF1 RYS 13 & 31 FREQ 123.00; 3 CLICKS ON, 5 CLICKS INCREASE INTENSITY, 7 CLICKS OFF. PAPI RYS 13 & 31 OPER CONT.
N/A
Yes - Lighted
Yes
No
Hanger, Tie-Down
NOT a Landing Rights Airport
NOT an Airport of Entry
Minor
Minor
None
None
None

Runway 13/31

11802 ft. x 150 ft.
ASPH CONC  
Good 
NONE 
HIGH 
 
155,000lbs 
200,000lbs 
415,000lbs 
720,000lbs 
  Runway 13 Runway 31
True Heading 141°321°
Traffic Pattern Right
Markings NPI PIR
Markings Condition GOOD GOOD
Latitude 37° 23' 35"N 37° 22' 04"N
Longitude 120° 34' 51"W 120° 33' 20"W
Elevation 190' 178'
Threshold Crossing Height 75 ft. AGL 71 ft. AGL
Visual Glide Path Angle 3° 3°
Visual Slope Indicator P4L P4L
Approach Lights ALSF1 ALSF1
Centerline Lights
Runway End Identifier Lights No
A11COMMUNITY & ECONOMIC DEVELOPMENT
A110-10WHEN ATCT CLSD MAX OF 5 ACFT PMTD IN VFR TFC PAT AT ANY ONE TIME AND 2000 FT CIG AND 3 MIS VIS RCMDD.
A110-11FOR CD WHEN ATCT IS CLSD CTC NORCAL APCH AT 916-361-0516.
A110-12TWY B CLSD TO ACFT GTR THAN 30000 LBS.
A110-2RY 13/31 180 DEGREE TURNS PROHIBITIED.
A110-3FOR ARPT INFO 209-385-7686, EXTN 4180.
A110-4RY 31 WILL BE THE DESIGNATED CALM WIND RY (WIND 5 KNOTS OR LESS).
A110-7OPPOSITE END OF RY NOT VISIBLE ON TKOF. WHEN ATCT CLSD OPPOSITE DIRECTION TAKEOFFS AND LANDINGS ARE NOT AUTHORIZED.
A110-9CIVILIAN AND MILITARY TRAINING MAY OCCASIONALLY CAUSE PATTERN CONGESTION.
A15MAILING ADDRESS
A16DESK PHONE 209-385-7686, EXTN 4180.
A30-13/311,000 FT PAVED BLAST PAD BOTH ENDS OF RY.
A49-31ALSF1 RY 13/31 SEQUENCED FLASHING LGTS OTS INDEFLY.
A70-FUEL-100LL FOR FUEL FM 1800-0900 CALL (209) 725-1455.
A81-APTWHEN ATCT CLSD ACTVT HIRL RY 13/31; ALSF1 RYS 13 & 31 FREQ 123.00; 3 CLICKS ON, 5 CLICKS INCREASE INTENSITY, 7 CLICKS OFF. PAPI RYS 13 & 31 OPER CONT.
E111NO OBJECTIONS
CASTLE (ICAO: KMER, IATA: MER) is a public airport located in ATWATER, CA.