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GRAND LAKE ST MARYS - Airport Diagram
LiveATC.net: Live Air Traffic - From Their Headsets to You

O12
Local O12
GRAND LAKE ST MARYS
PublicPUB

5 miles NE of ST MARYS, OH, US
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LiveATC.net: Live Air Traffic - From Their Headsets to You
Status
Operational
Coordinates
40° 32' 28"N 84° 29' 26"W
Elevation
871' MSL
Pattern Alt
1871' MSL
Mag Variation
6°W
Fuel
100LL
FSS
DAYTON (DAY)
Sectional
DETROIT
ARTCC
INDIANAPOLIS (ZID)
Data Effective
6/11/26-7/9/26
KAXV (9nm) VFR
8:55 PM EDT  
Clear
10sm
72°F
66°F
29.96"Hg
210° 5kts
AO2
METAR KAXV 260055Z AUTO 21005KT 10SM CLR 22/19 A2996 RMK AO2
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Common

CTAF 122.9
ACFT OPRG AT GRAND LAKE ST MARYS SHOULD MNT TFC ON LAKEFIELD CTAF & NEIL ARMSTRONG CTAF.

FAA A/FD Pages

Terminal Area Forecast

KDAY (40nm)
Thu, 6/25 7:28 PM EDT
Thu, 6/25 8:00 PM EDT - Fri, 6/26 8:00 PM EDT
VFR
8:00 PM EDT - 10:00 PM EDT
Broken 8,000'
Scattered 3,500'
6sm
260° 11kts
VFR
10:00 PM EDT - 6:00 AM EDT
Broken 6,000'
6sm
270° 6kts
MVFR
6:00 AM EDT - 10:00 AM EDT
Mist
Scattered 7,000'
4sm
100° 3kts
VFR
10:00 AM EDT - 12:00 PM EDT
Broken 10,000'
6sm
130° 6kts
MVFR
12:00 PM EDT - 3:00 PM EDT
Light Showers and Rain and Mist
Overcast 5,000'
Scattered 2,500'
5sm
130° 8kts
MVFR
3:00 PM EDT - 8:00 PM EDT
Light Showers and Rain and Mist
Broken 1,800'
3sm
120° 8kts
TAF KDAY 252328Z 2600/2624 26011KT P6SM SCT035 BKN080
   FM260200 27006KT P6SM BKN060
   FM261000 10003KT 4SM BR SCT070
   FM261400 13006KT P6SM BKN100
   FM261600 13008KT 5SM -SHRA BR SCT025 OVC050
   FM261900 12008KT 3SM -SHRA BR BKN018
O12
EffectiveExpiresCategoryNOTAM
Domestic
4/23/26
1150Z
8/20/26
2359Z
!DAY 04/197 O12 OBST TOWER LGT (ASR 1217931) 404412.80N0842017.00W (13.7NM NNE O12) 1128.0FT (310.0FT AGL) U/S 2604231150-2608202359
No
APR-NOV 0800-1700
ARPT CLSD NOV 15 TO APR 1 & MEMORIAL & LABOR DAY.
OHIO DIV OF PARKS & REC
834 EDGEWATER DR
SAINT MARYS, OH 45885
Phone: 419-394-3611
DAVID FALER, ASST PARK MGR
GRAND LAKE SAINT MARYS STATE PARK 834 EDGEWATER DR
SAINT MARYS, OH 45885
Phone: 419-394-3611
DAYTON FSS (DAY)
Toll Free: 1-800-WX-BRIEF
DAY
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N/A
N/A
No
No
None
No
None
None
None
None
None

Runway 09W/27W

7000 ft. x 4000 ft.
 
WATER 
NONE 
 
 
-- 
-- 
-- 
-- 
  Runway 09W Runway 27W
True Heading Not ListedNot Listed
Traffic Pattern Right
Markings BUOY BUOY
Markings Condition GOOD GOOD
Latitude N/A N/A
Longitude N/A N/A
Elevation -- --
Threshold Crossing Height -- --
Visual Glide Path Angle -- --
Visual Slope Indicator -- --
Approach Lights
Centerline Lights
Runway End Identifier Lights
A110-1NO NGT OPS.
A110-2NO PUB DOCKS; PPR FOR PVT DOCK TIE UP; CALL KOZY MARINA 419-394-8797.
A110-3FOR CD CTC COLUMBUS APCH AT 614-338-8537.
A16CELL 419-656-7060.
A17-M1ARPT CLSD NOV 15 TO APR 1 & MEMORIAL & LABOR DAY.
A70-100LL100LL AVBL ON REQ, PPR, CTC KOZY MARINA 419-394-8797.
A82ACFT OPRG AT GRAND LAKE ST MARYS SHOULD MNT TFC ON LAKEFIELD CTAF & NEIL ARMSTRONG CTAF.
E111PRVDD 20:1 APCH; OIL WELL TO THE S MKD & LGTD; SEA LANES MKD & LGTD PER AC 150/5395-1.
GRAND LAKE ST MARYS (IATA: O12) is a public seaplane base located in ST MARYS, OH, US.