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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
2/19/26-3/19/26
No METAR is available for this location.
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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)
Sun, 2/22 12:37 PM EST
Sun, 2/22 1:00 PM EST - Mon, 2/23 1:00 PM EST
IFR
Temporary 1:00 PM EST - 5:00 PM EST
Light Showers and Snow
No Clouds
1.5sm
Calm
MVFR
1:00 PM EST - 7:00 PM EST
Light Showers and Snow and Mist
Overcast 1,500'
3sm
300° 15kts
Gusts 25kts
MVFR
7:00 PM EST - 1:00 AM EST
Light Showers and Snow
Broken 2,200'
Scattered 1,500'
6sm
300° 15kts
Gusts 25kts
MVFR
7:00 PM EST - 1:00 AM EST
Light Showers and Snow
Overcast 1,500'
3sm
Calm
MVFR
1:00 AM EST - 12:00 PM EST
Overcast 1,500'
6sm
320° 15kts
Gusts 25kts
MVFR
12:00 PM EST - 1:00 PM EST
Overcast 2,200'
6sm
320° 13kts
Gusts 23kts
TAF KDAY 221737Z 2218/2318 30015G25KT 3SM -SHSN BR OVC015
   TEMPO 2218/2222 1 1/2SM -SHSN
   FM230000 30015G25KT P6SM -SHSN SCT015 BKN022
   PROB30 2300/2306 3SM -SHSN OVC015
   FM230600 32015G25KT P6SM OVC015
   FM231700 32013G23KT P6SM OVC022
O12
No NOTAM Available
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.