GREAT LAKES (OPEN LAKE) FORECAST AVAILABILITY AND EXPECTED RELEASE TIMES
St. Lawrence 0500e 1100e 1700e 2300e
Lake Ontario 0500e 1100e 1700e 2300e
Lake Erie 0500e 1100e 1700e 2300e
Lake St. Clair 0500e 1100e 1700e 2300e
Lake Huron 0500e 1100e 1700e 2300e
Lake Michigan 0400c 1000c 1600c 2200c
Lake Superior 0400c 1000c 1600c 2200c
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Issued at local times, Eastern Standard Time or Eastern Daylight Savings Time (e); Central Standard Time or Central Daylight Savings Time (c)
See Marine Weather Service Chart MSC-11/12 for an explanation of the MAFOR code