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Great Lakes Ice Outlook (CLEICELIO)

issued Monday Wednesday Friday


 


                             Freezing Degree Day Information

	CLEWRKLIO DEF 
TTAA00 KCLE 311715
 
FREEZING DEGREE DAY ACCUMULATIONS AT SELECTED STATIONS
COMPARED TO NORMAL CALCULATED ON Thu May 31:
 
LOCATION           DATE   NORMAL CURRENT
----------------------------------------
    
   DULUTH,   MN  MAY   30 1185 1468    
MARQUETTE,   MI  MAY   30 1033 1380    
SAU_S_MAR,   MI  MAY   30  574  683    
 GREENBAY,   WI  MAY   30  154  115    
MILWAUKEE,   WI  MAY   30    0    0    
  CHICAGO,   IL  MAY   30    0    0    
 MUSKEGON,   MI  MAY   30    0    0    
   ALPENA,   MI  MAY   30  147  309    
  DETROIT,   MI  MAY   30    0    0    
   TOLEDO,   OH  MAY   30    0    0    
CLEVELAND,   OH  MAY   30    0    0    
  BUFFALO,   NY  MAY   30    0    0    
 
 




                         Canadian Daily Ice Forecast 


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FICN19 CWIS 301545
Ice forecasts for the Great Lakes issued by Environment Canada at
12:00 p.m. EDT Monday 30 April 2018 for today tonight and Tuesday.
The next scheduled forecasts will be issued at 12:00 p.m. Tuesday.

Western Lake Superior.
Open water except 3 tenths thick lake ice including 1 tenth very
thick lake ice along parts of the southern and northwestern shores.
Consolidated thick lake ice including 4 tenths very thick lake ice
in bays along the north shore.

Eastern Lake Superior.
Open water except 9 tenths thick lake ice along parts of the
southern shore.

Whitefish Bay.
8 tenths thick lake ice including 1 tenth very thick lake ice except
consolidated thick lake ice including 2 tenths very thick lake ice
in eastern bays.

Northern Lake Huron.
Open water except 3 tenths of thick lake ice including 1 tenth very
thick lake ice south of De Tour Village.

Southern Lake Huron
Lake St. Clair
Lake Erie
Lake Ontario.
Ice free.

North Channel.
9 tenths rotten thick lake ice including 2 tenths rotten very thick
lake ice.

Georgian Bay.
Open water except 3 tenths thick lake ice along parts of the
northern and eastern shores.

Northern Lake Michigan.
Open water except 2 tenths thick lake ice along the southern shore
of the Straits of Mackinac. Consolidated thick lake ice in Little
Traverse Bay.

Southern Lake Michigan.
Ice free.

Green Bay.
Open water except consolidated thick lake ice in the Bays de Noc. 5
tenths thick lake ice south of Marinette. 2 tenths thick lake ice
along the Door Peninsula.

The Lake Michigan ice description has been pared by the U.S.
National Ice Center.

End

 
 
 
 
 



                            Freeze-Up/Break-Up Outlook (NWS CLE)

	

   National Ice Center 30 day ice outlook


					
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FECN19 CWIS 181800 
THIRTY DAY ICE OUTLOOK FOR THE GREAT LAKES ISSUED BY ENVIRONMENT CANADA ON 18 APRIL 2018 FOR MID-APRIL TO MID-MAY.  THE NEXT SCHEDULED BULLETIN WILL BE ISSUED ON 2 MAY 2018.

Lake Superior

Average air temperatures were below normal in the first half of April. Air temperatures will be near normal for mid-April to mid-May.

Thunder Bay.
April 19 to 25.	
-	1 to 3 tenths of rotten very thick lake ice except consolidated rotten very thick lake ice along the shores.
April 26 to May 5.
-	1 to 3 tenths of rotten very thick lake ice except consolidated rotten very thick lake ice in the northeastern section.
May 6 to 19.
-	Open water except 1 to 3 tenths of rotten very thick lake ice in the northeastern section.

Nipigon and Black Bays.
April 19 to May 10.
-	Consolidated rotten very thick lake ice.
-	1 to 3 tenths of rotten very thick lake ice near the entrances to the bays.
May 11 to 18.
-	9 to 10 tenths of rotten very thick lake ice.

From Grand Marais Minnesota to the entrance to Nipigon Bay.
April 19 to 25.
-	Open water except 1 to 3 tenths of rotten thick lake ice between Thunder Bay and Nipigon Bay, and near Isle Royale.
April 26 to May 5. 
-	Open water except isolated patches of rotten thick lake ice along the shore.
May 6 to 19.
-	Open water to ice free.

From Grand Marais to Duluth.
April 19 to May 19.
-	Open water to ice free.

Southern Lake Superior west of Keweenaw Peninsula. 
April 19 to 25.
-	Open water except 9 to 10 tenths of rotten thick lake ice along the shore.
-	Consolidated rotten very thick lake ice in Chequamegon Bay and near the Apostle Islands.
April 26 to May 5.
-	Open water except 7 to 8 tenths of rotten thick and very thick lake ice in the Apostle Islands and along sections of the shore.
-	Consolidated rotten very thick lake ice in Chequamegon Bay.
May 6 to 15.
-	Open water except 4 to 6 tenths of rotten very thick lake ice in the Apostle Islands and Chequamegon Bay.
-	Isolated patches of 1 to 3 tenths of rotten thick lake ice along the shore.
May 16 to 19.
-	Open water to ice free.

Southern Lake Superior east of the Keweenaw Peninsula.
April 19 to 25.
-	Open water except 9 to 10 tenths of medium and thick lake ice along the shore.
-	Consolidated rotten thick lake ice in isolated bays and inlets.
April 26 to 30.
-	Open water except 4 to 6 tenths of rotten thick lake ice along the shore.
May 1 to 10.
-	Open water except 1 to 3 tenths of rotten thick lake ice along the shore.
May 11 to 19.
-	Open water to ice free.
 
Whitefish Bay.
April 19 to 25.
-	9 to 10 tenths of rotten thick and very thick lake ice except consolidated very thick lake ice over the eastern and southern sections.
April 26 to 30.
-	4 to 6 tenths of rotten thick and very thick lake ice except consolidated rotten very thick lake ice over the northeastern section.
May 1 to 10.
-	Open water except 1 to 3 tenths of rotten very thick lake ice in the northeastern section.
May 11 to 19.
-	Open water.

From Whitefish Bay northwards to Michipicoten Bay.
April 19 to 25.
-	1 to 3 tenths of rotten thick lake ice except consolidated thick lake ice along the shore from Whitefish Bay to Cape Gargantua. 
April 26 to 30.
-	Open water except 7 to 8 tenths of rotten thick lake ice along the shore from Whitefish Bay to Cape Gargantua.
May 1 to 5.
-	Open water except 1 to 3 tenths of rotten thick lake ice along the shore from Whitefish Bay to Cape Gargantua.
May 6 to 19.
-	Open water to ice free.

From Michipicoten Bay to the entrance to Nipigon Bay.
April 19 to May 19.
-	Open water to ice free.

Elsewhere in Lake Superior.
April 19 to May 19.
-	Open water to ice free.

Lake Michigan

Average air temperatures were below normal in the first half of April. Air temperatures will be near normal for mid-April to mid-May.

Green Bay.
April 18 to 25.
-	Open water except 7 to 8 tenths of rotten thick lake ice over the southern section.
-	Consolidated rotten thick lake ice in the Bays de Noc.
April 26 to May 5.
-	Open water except 4 to 6 tenths of rotten thick lake ice over the southern section.
-	7 to 8 tenths of rotten thick lake ice in the Bays de Noc.
May 6 to 19.
-	Open water to ice free.

Northeastern Lake Michigan.
April 19 to 25.
-	Open water except 1 to 3 tenths of rotten thick lake ice east of Beaver Island.
April 26 to May 19.
-	Open water to ice free.

Elsewhere in Lake Michigan.
April 19 to May 19.
-	Ice free.

Lake Huron and Georgian Bay

Average air temperatures were below normal in the first half of April. Air temperatures will be near normal for mid-April to mid-May.

North Channel.
April 19 to 25.
-	Consolidated rotten very thick lake ice.
April 26 to May 5.
-	7 to 8 tenths of rotten thick and very thick lake ice except consolidated rotten very thick lake ice in the eastern and western sections.
May 6 to 10.
-	4 to 6 tenths of rotten thick and very thick lake ice.
May 11 to 19.
-	Open water.

St Mary’s River.
April 19 to 25.
-	Consolidated rotten thick and very thick lake ice.
-	4 to 6 tenths of rotten thick and very thick lake ice in isolated sections of the river.
April 26 to May 5.
-	7 to 8 tenths of rotten thick and very thick lake ice.
May 6 to 10
-	1 to 3 tenths of rotten very thick lake ice.
May 11 to 19.
-	Open water.

South of Manitoulin Island westward to north-western Lake Huron.
April 19 to May 19.
-	Open water to ice free.

North-western Lake Huron near the Straits of Mackinac.
April 19 to 25.
-	Open water except 1 to 3 tenths of rotten thick lake ice from the Straits of Mackinac to south of Bois Blanc Island.
April 26 to May 19.
-	Open water to ice free.

From north-western Lake Huron to Saginaw Bay.
April 19 to May 19.
-	Open water to ice free.

Saginaw Bay.
April 19 to May 19.
-	Ice free.

The southern and eastern shore of Lake Huron.
April 19 to May 19.
-	Open water to ice free.

Georgian Bay.
April 19 to 25.
-	Open water except consolidated rotten thick lake ice in isolated bays and inlets along the northern and eastern shores.
April 26 to May 5.
-	Open water except 1 to 3 tenths of rotten thick lake ice along the eastern shore.
May 6 to 19.
-	Open water to ice free.

Elsewhere in Lake Huron.
April 19 to May 19.
-	Open water to ice free.

Lake Erie and Lake St. Clair

Average air temperatures were below normal in the first half of April. Air temperatures will be near normal for mid-April to mid-May.

Lake St Clair and the Western Basin.
April 19 to May 19.
-	Ice free. 

The rest of Lake Erie.
April 19 to 25.
-	Open water except 7 to 8 tenths of rotten thick lake ice along the shore near Dunkirk to Buffalo.
April 26 to 30.
-	Open water except 1 to 3 tenths of rotten thick lake ice along the shore near Dunkirk to Buffalo.
May 1 to 19. 
-	Open water to ice free.

Lake Ontario

Average air temperatures were below normal in the first half of April. Air temperatures will be near normal for mid-April to mid-May.

Northeastern Lake Ontario.
April 19 to May 19.
-	Ice free.

Bay of Quinte.
April 19 to May 19.
-	Ice free.

St Lawrence River.
April 19 to May 19.
-	Ice free.

Elsewhere in Lake Ontario.
April 19 to May 19.
-	Ice free.

END

 
 
 
 
 

 

 

Canadian 30-day ice outlook


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FECN19 CWIS 181800 
THIRTY DAY ICE OUTLOOK FOR THE GREAT LAKES ISSUED BY ENVIRONMENT CANADA ON 18 APRIL 2018 FOR MID-APRIL TO MID-MAY.  THE NEXT SCHEDULED BULLETIN WILL BE ISSUED ON 2 MAY 2018.

Lake Superior

Average air temperatures were below normal in the first half of April. Air temperatures will be near normal for mid-April to mid-May.

Thunder Bay.
April 19 to 25.	
-	1 to 3 tenths of rotten very thick lake ice except consolidated rotten very thick lake ice along the shores.
April 26 to May 5.
-	1 to 3 tenths of rotten very thick lake ice except consolidated rotten very thick lake ice in the northeastern section.
May 6 to 19.
-	Open water except 1 to 3 tenths of rotten very thick lake ice in the northeastern section.

Nipigon and Black Bays.
April 19 to May 10.
-	Consolidated rotten very thick lake ice.
-	1 to 3 tenths of rotten very thick lake ice near the entrances to the bays.
May 11 to 18.
-	9 to 10 tenths of rotten very thick lake ice.

From Grand Marais Minnesota to the entrance to Nipigon Bay.
April 19 to 25.
-	Open water except 1 to 3 tenths of rotten thick lake ice between Thunder Bay and Nipigon Bay, and near Isle Royale.
April 26 to May 5. 
-	Open water except isolated patches of rotten thick lake ice along the shore.
May 6 to 19.
-	Open water to ice free.

From Grand Marais to Duluth.
April 19 to May 19.
-	Open water to ice free.

Southern Lake Superior west of Keweenaw Peninsula. 
April 19 to 25.
-	Open water except 9 to 10 tenths of rotten thick lake ice along the shore.
-	Consolidated rotten very thick lake ice in Chequamegon Bay and near the Apostle Islands.
April 26 to May 5.
-	Open water except 7 to 8 tenths of rotten thick and very thick lake ice in the Apostle Islands and along sections of the shore.
-	Consolidated rotten very thick lake ice in Chequamegon Bay.
May 6 to 15.
-	Open water except 4 to 6 tenths of rotten very thick lake ice in the Apostle Islands and Chequamegon Bay.
-	Isolated patches of 1 to 3 tenths of rotten thick lake ice along the shore.
May 16 to 19.
-	Open water to ice free.

Southern Lake Superior east of the Keweenaw Peninsula.
April 19 to 25.
-	Open water except 9 to 10 tenths of medium and thick lake ice along the shore.
-	Consolidated rotten thick lake ice in isolated bays and inlets.
April 26 to 30.
-	Open water except 4 to 6 tenths of rotten thick lake ice along the shore.
May 1 to 10.
-	Open water except 1 to 3 tenths of rotten thick lake ice along the shore.
May 11 to 19.
-	Open water to ice free.
 
Whitefish Bay.
April 19 to 25.
-	9 to 10 tenths of rotten thick and very thick lake ice except consolidated very thick lake ice over the eastern and southern sections.
April 26 to 30.
-	4 to 6 tenths of rotten thick and very thick lake ice except consolidated rotten very thick lake ice over the northeastern section.
May 1 to 10.
-	Open water except 1 to 3 tenths of rotten very thick lake ice in the northeastern section.
May 11 to 19.
-	Open water.

From Whitefish Bay northwards to Michipicoten Bay.
April 19 to 25.
-	1 to 3 tenths of rotten thick lake ice except consolidated thick lake ice along the shore from Whitefish Bay to Cape Gargantua. 
April 26 to 30.
-	Open water except 7 to 8 tenths of rotten thick lake ice along the shore from Whitefish Bay to Cape Gargantua.
May 1 to 5.
-	Open water except 1 to 3 tenths of rotten thick lake ice along the shore from Whitefish Bay to Cape Gargantua.
May 6 to 19.
-	Open water to ice free.

From Michipicoten Bay to the entrance to Nipigon Bay.
April 19 to May 19.
-	Open water to ice free.

Elsewhere in Lake Superior.
April 19 to May 19.
-	Open water to ice free.

Lake Michigan

Average air temperatures were below normal in the first half of April. Air temperatures will be near normal for mid-April to mid-May.

Green Bay.
April 18 to 25.
-	Open water except 7 to 8 tenths of rotten thick lake ice over the southern section.
-	Consolidated rotten thick lake ice in the Bays de Noc.
April 26 to May 5.
-	Open water except 4 to 6 tenths of rotten thick lake ice over the southern section.
-	7 to 8 tenths of rotten thick lake ice in the Bays de Noc.
May 6 to 19.
-	Open water to ice free.

Northeastern Lake Michigan.
April 19 to 25.
-	Open water except 1 to 3 tenths of rotten thick lake ice east of Beaver Island.
April 26 to May 19.
-	Open water to ice free.

Elsewhere in Lake Michigan.
April 19 to May 19.
-	Ice free.

Lake Huron and Georgian Bay

Average air temperatures were below normal in the first half of April. Air temperatures will be near normal for mid-April to mid-May.

North Channel.
April 19 to 25.
-	Consolidated rotten very thick lake ice.
April 26 to May 5.
-	7 to 8 tenths of rotten thick and very thick lake ice except consolidated rotten very thick lake ice in the eastern and western sections.
May 6 to 10.
-	4 to 6 tenths of rotten thick and very thick lake ice.
May 11 to 19.
-	Open water.

St Mary’s River.
April 19 to 25.
-	Consolidated rotten thick and very thick lake ice.
-	4 to 6 tenths of rotten thick and very thick lake ice in isolated sections of the river.
April 26 to May 5.
-	7 to 8 tenths of rotten thick and very thick lake ice.
May 6 to 10
-	1 to 3 tenths of rotten very thick lake ice.
May 11 to 19.
-	Open water.

South of Manitoulin Island westward to north-western Lake Huron.
April 19 to May 19.
-	Open water to ice free.

North-western Lake Huron near the Straits of Mackinac.
April 19 to 25.
-	Open water except 1 to 3 tenths of rotten thick lake ice from the Straits of Mackinac to south of Bois Blanc Island.
April 26 to May 19.
-	Open water to ice free.

From north-western Lake Huron to Saginaw Bay.
April 19 to May 19.
-	Open water to ice free.

Saginaw Bay.
April 19 to May 19.
-	Ice free.

The southern and eastern shore of Lake Huron.
April 19 to May 19.
-	Open water to ice free.

Georgian Bay.
April 19 to 25.
-	Open water except consolidated rotten thick lake ice in isolated bays and inlets along the northern and eastern shores.
April 26 to May 5.
-	Open water except 1 to 3 tenths of rotten thick lake ice along the eastern shore.
May 6 to 19.
-	Open water to ice free.

Elsewhere in Lake Huron.
April 19 to May 19.
-	Open water to ice free.

Lake Erie and Lake St. Clair

Average air temperatures were below normal in the first half of April. Air temperatures will be near normal for mid-April to mid-May.

Lake St Clair and the Western Basin.
April 19 to May 19.
-	Ice free. 

The rest of Lake Erie.
April 19 to 25.
-	Open water except 7 to 8 tenths of rotten thick lake ice along the shore near Dunkirk to Buffalo.
April 26 to 30.
-	Open water except 1 to 3 tenths of rotten thick lake ice along the shore near Dunkirk to Buffalo.
May 1 to 19. 
-	Open water to ice free.

Lake Ontario

Average air temperatures were below normal in the first half of April. Air temperatures will be near normal for mid-April to mid-May.

Northeastern Lake Ontario.
April 19 to May 19.
-	Ice free.

Bay of Quinte.
April 19 to May 19.
-	Ice free.

St Lawrence River.
April 19 to May 19.
-	Ice free.

Elsewhere in Lake Ontario.
April 19 to May 19.
-	Ice free.

END