National Weather Service United States Department of Commerce

Ice Analysis

Graphical Ice Forecasts   Text Ice Forecasts     Ice Climatology      MODIS Satellite

     

 

Great Lakes Ice Outlook (CLEICELIO)

issued Monday Wednesday Friday


000
FZUS81 KCLE 022216
ICELIO

GREAT LAKES ICE OUTLOOK
NATIONAL WEATHER SERVICE CLEVELAND OHIO
530 PM EST MON MAR 2 2015

ACTIVE WATCHES...WARNINGS...AND ADVISORIES ON THE GREAT LAKES CAN
BE FOUND AT...HTTP://WWW.CRH.NOAA.GOV/GREATLAKES/?C=HAZ&L=GL&P=A

5 DAY ICE DISCUSSION...
HIGH PRESSURE CENTERED OVER OHIO AND EXTENDING OVER THE LAKES WILL
MOVE QUICKLY OFF THE NEW ENGLAND COAST BY TUESDAY AFTERNOON.  THIS
WILL ALLOW LOW PRESSURE IN KANSAS TO MOVE NORTHEAST TO THE CENTRAL
LAKES BY TUESDAY EVENING.  THE LOW WILL DRAG A WARM FRONT ACROSS THE
SOUTHERN AND EASTERN LAKES WHILE THE COLD FRONT CROSSES THE WESTERN
LAKES. WEDNESDAY HIGH PRESSURE WILL BEGIN TO BUILD INTO THE
CENTRAL AND NORTHERN PLAINS. THURSDAY THE HIGH WILL EXTEND OVER THE
LAKES FROM MISSOURI. FRIDAY THE HIGH WILL BE IN THE LOWER OHIO
VALLEY.

WINDS ON THE LAKES WILL BE GENERALLY LIGHT AND FROM THE SOUTH TO
SOUTHWEST OVERNIGHT AT 10 TO 20 KNOTS.  SOUTH WINDS WILL INCREASE TO
15 TO 25 KNOTS TUESDAY WITH WINDS ON LAKE MICHIGAN REACHING 30
KNOTS. TUESDAY NIGHT WINDS ON LAKES MICHIGAN AND SUPERIOR WILL BE
FROM THE WEST AT 20 TO 30 KNOTS TURNING NORTHWEST LATE. OTHERWISE
EXPECT SOUTH TO SOUTHEAST WINDS 15 TO 25 KNOTS.

TEMPERATURES OVER THE LAKES WILL BE BELOW NORMAL TUESDAY WHICH WILL
BE WARMER THAN PAST DAYS IN MOST AREAS. WEDNESDAY THROUGH THURSDAY
RAPID ICE GROWTH AND THICKENING WILL BE LIKELY AS ARCTIC AIR RETURNS
TO THE LAKES.  THE ARCTIC AIR WILL BEGIN TO RETREAT FRIDAY ACROSS
THE WESTERN LAKES WITH MODERATION REACHING THE EASTERN LAKES
SATURDAY.

THE STRONGER WINDS EXPECTED TUESDAY NIGHT COULD CAUSE RIDGING AND
RAFTING OF ICE FIELDS AND CREATE ICE FLOES. IN ADDITION ANY TRACKS
THAT HAVE BEEN OPENED DUE TO ICE BREAKER OPERATION MAY CLOSE.


THE GREAT LAKES ICE ANALYSIS PRODUCTS CAN BE FOUND AT:

HTTP://WWW.NATICE.NOAA.GOV/PRODUCTS/GREAT_LAKES.HTML

AND

HTTP://WWW.GLERL.NOAA.GOV/DATA/ICE/#CURRENTCONDITIONS

 LOCATION   03/03   03/04   03/05   03/06   03/07   03/08
   DULUTH  18  24  -6   6 -11  14   8  31  15  32  17  33
MARQUETTE  12  27   4   8  -7  12   2  27  17  30  14  33
 GREENBAY  17  32   5  11  -6  15   1  31  17  34  17  36
MILWAUKEE  21  35  10  15  -2  14   4  29  22  35  21  35
  CHICAGO  20  36  13  17  -2  14   3  29  21  37  22  35
 MUSKEGON  15  35  21  23   0  15   1  25  18  36  18  34
   ALPENA  -3  25  15  17  -5  13   0  26  17  32  15  34
  DETROIT  16  36  27  30   5  16   5  23  17  34  22  34
   TOLEDO  14  39  25  29   3  16   0  24  16  34  17  34
CLEVELAND  14  41  31  31  10  17   4  22  16  34  21  34
  BUFFALO   6  33  32  33   9  16   3  21  17  31  15  35


A FULL GRAPHICAL FORECAST OF THE GREAT LAKES FORECAST TEMPERATURES
CAN BE FOUND AT: HTTP://WWW.CRH.NOAA.GOV/GREATLAKES/?C=MAP&L=GL&P=A&M=TE

A FULL GRAPHICAL FORECAST OF WIND ON THE GREAT LAKES CAN BE FOUND AT:
HTTP://WWW.CRH.NOAA.GOV/GREATLAKES/?C=MAP&L=GL&P=A&M=WS

FREEZING DEGREE DAY ACCUMULATIONS AT SELECTED STATIONS
COMPARED TO NORMAL CALCULATED ON MON MAR 2:

LOCATION           DATE   NORMAL CURRENT
----------------------------------------

   DULUTH,   MN  MAR    1 1817 2004
MARQUETTE,   MI  DEC   31 1950 2488
SAU_S_MAR,   MI  MAR    1 1248 1841
 GREENBAY,   WI  MAR    1 1165 1420
MILWAUKEE,   WI  MAR    1  647  906
  CHICAGO,   IL  MAR    1  506  865
 MUSKEGON,   MI  MAR    1  408  744
   ALPENA,   MI  MAR    1  953 1462
  DETROIT,   MI  MAR    1  384  860
   TOLEDO,   OH  MAR    1  387  932
CLEVELAND,   OH  MAR    1  191  796
  BUFFALO,   NY  MAR    1  518  976


NORMAL TEMPS FOR SELECTED LOCATIONS AROUND THE
GREAT LAKES FOR MON MAR 2

LOCATION     HIGH LOW
----------------------------------------------

    DULUTH,MN  31  13
 MARQUETTE,MI  31  15
  GREENBAY,WI  31  13
 MILWAUKEE,WI  39  24
   CHICAGO,IL  43  26
  MUSKEGON,MI  39  24
    ALPENA,MI  31  13
   DETROIT,MI  42  25
    TOLEDO,OH  43  25
 CLEVELAND,OH  43  26
   BUFFALO,NY  39  23



NOTE: ALL WEB SITE ADDRESSES SHOULD BE ENTERED INTO YOUR BROWSER IN LOWER
CASE.

$$

TK





 


                             Freezing Degree Day Information

	CLEWRKLIO DEF 
TTAA00 KCLE 021715
 
FREEZING DEGREE DAY ACCUMULATIONS AT SELECTED STATIONS
COMPARED TO NORMAL CALCULATED ON Mon Mar 2:
 
LOCATION           DATE   NORMAL CURRENT
----------------------------------------
    
   DULUTH,   MN  MAR    1 1817 2004    
MARQUETTE,   MI  DEC   31 1950 2488    
SAU_S_MAR,   MI  MAR    1 1248 1841    
 GREENBAY,   WI  MAR    1 1165 1420    
MILWAUKEE,   WI  MAR    1  647  906    
  CHICAGO,   IL  MAR    1  506  865    
 MUSKEGON,   MI  MAR    1  408  744    
   ALPENA,   MI  MAR    1  953 1462    
  DETROIT,   MI  MAR    1  384  860    
   TOLEDO,   OH  MAR    1  387  932    
CLEVELAND,   OH  MAR    1  191  796    
  BUFFALO,   NY  MAR    1  518  976    




                         Canadian Daily Ice Forecast 





 FICN19 CWIS 021649
Ice forecasts for the Great Lakes issued by Environment Canada at
12:00 p.m. EST Monday 2 March 2015 for today tonight and Tuesday.
The next scheduled forecasts will be issued at 12:00 p.m. Tuesday.

 Eastern Lake Superior.
9 tenths of medium lake ice including 3 tenths of thick lake ice
except 9 plus of thick lake ice along the southern and southeastern
shore.

 Western Lake Superior.
9 tenths of medium lake ice except 9 plus tenths of thick lake ice
in the southeastern section. Consolidated thick lake ice including 3
tenths of very thick lake ice in Black Bay and Nipigon Bay and north
of Isle Royale.

 Whitefish Bay.
9 plus tenths of thick lake ice except consolidated thick lake ice
in the southeastern section.

 Southern Lake Huron.
8 tenths of medium lake ice including 1 tenth of thick lake ice
except 9 plus tenths of thick lake ice in the southern and eastern
sections. Consolidated thick lake ice in Saginaw Bay.

 Northern Lake Huron.
8 tenths of thin lake ice along the northern and western shores
except 9 plus tenths of medium lake ice including 2 tenths of thick
lake ice elsewhere. 9 plus tenths of thick lake ice in the eastern
section. Consolidated thick lake ice in the Straits of Mackinac.

 North Channel.
Consolidated thick lake ice.

 Georgian Bay.
9 tenths of thick lake ice. Consolidated thick lake ice along the
northern and eastern shores.

 Lake St. Clair.
Consolidated thick lake ice.

 Lake Erie.
9 plus tenths of thick lake ice. Consolidated thick lake ice in the
extreme eastern and western sections.

 Western Lake Ontario.
Open water except 3 tenths of new lake ice along the northern and
western shores. 9 tenths of thin lake ice including 3 tenths of
medium lake ice in the southern section.

 Eastern Lake Ontario.
8 tenths of thin lake ice except 9 plus tenths of medium lake ice
over the eastern section consolidated thick lake ice in the Bay Of
Quinte and the extreme eastern section.

 Northern Lake Michigan.
9 tenths of medium lake ice except consolidated thick lake ice in
the northeast section of the lake. 3 tenths of thin lake ice in
strips and patches along the western shores.

 Southern Lake Michigan.
Open water except 9 plus tenths of medium lake ice including 3
tenths of thick lake ice along the southern and eastern shores. 8
tenths of thin lake ice over the western section.

 Green Bay.
Consolidated thick lake ice except for 9 to 10 tenths of thick lake
ice in the northern third of the bay including 2 tenths of thin lake
ice along the shores of Green Bay.

 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


					



 FECN19 CWIS 171800 
THIRTY DAY ICE OUTLOOK FOR THE GREAT LAKES ISSUED BY ENVIRONMENT CANADA 
ON 17 FEBRUARY 2015 FOR MID-FEBRUARY TO MID-MARCH.
THE NEXT 30 DAY ICE OUTLOOK WILL BE ISSUED ON 4 MARCH 2015.

 Lake Superior

 Average air temperatures were below normal in the first half of 
February. Air temperatures will be below normal from mid-February to 
mid-March. 

 Thunder Bay.
February 18 to March 15... Consolidated with thick lake ice.  

 Nipigon and Black Bays.
February 18 to March 15... Consolidated with thick lake ice.

 From Grand Marais Minnesota to the entrance to Nipigon Bay.
February 18 to March 15... 9 to 10 tenths thin and medium lake ice except 
9 to 10 tenths medium and thick lake ice from the shore to Isle Royale.

 From Grand Marais to Duluth.
End of February... 7 to 9 tenths new and thin with some medium lake ice 
except 9 to 10 tenths medium and thick lake ice within 20 nautical 
miles north of Duluth.
Mid-March...7 to 9 tenths new and thin with some medium lake ice except 9 
to 10 tenths medium and thick lake ice within 20 nautical miles north 
of Duluth.

 Southern Lake Superior west of Keweenaw Peninsula.
End of February...9 to 10 tenths medium and thick lake ice.
Mid-March... 9 to 10 tenths medium and thick lake ice.

 Southern Lake Superior east of the Keweenaw Peninsula.
End of February... 9 to 10 tenths medium and thick lake ice.
Mid-March... 9 to 10 tenths medium and thick lake ice.

 Whitefish Bay.
February 18 to March 15...Consolidated with thick lake ice.  

 From Whitefish Bay northwards to Michipicoten Bay.
End of February... 9 to 10 tenths thin and medium with some thick lake 
ice. Consolidated thick lake ice along portions of the shore. 
Mid-March... 9 to 10 tenths medium and thick lake ice. Consolidated thick 
lake ice along portions of the shore.

 From Michipicoten Bay to the entrance to Nipigon Bay.
End of February...9 to 10 tenths thin with some medium lake ice. 
Mid-March... 9 to 10 tenths thin and medium with some thick lake ice.

 Elsewhere in Lake Superior.
End of February...A small open water area in the eastern section of the 
lake otherwise 9 to 10 tenths thin and medium with some thick lake ice. 
Mid-March... 9 to 10 tenths medium and thick lake ice. 

 Lake Michigan

 Average air temperatures were below normal in the first half of 
February. Air temperatures will be below normal from mid-February to 
mid-March. 

 Green Bay.
End of February... Consolidated thick lake ice.
Mid-March... Consolidated thick lake ice in the southern two thirds of 
the bay and in the Bays de Noc. 9 to 10 tenths thick lake ice 
elsewhere.

 Northeastern Lake Michigan.
End of February... Consolidated thick lake ice from Seul Choix Point to 
the Straits of Mackinac with a narrow area of consolidated thick lake 
ice reaching Beaver Island. 7 to 10 tenths thin, medium and thick lake 
ice north of Frankfort. 
Mid-March... Consolidated thick lake ice from Seul Choix Point to the 
Straits of Mackinac with a narrow area of consolidated thick lake ice 
reaching Beaver Island. 7 to 10 tenths thin, medium and thick lake ice. 

 Elsewhere in Lake Michigan.
End of February... Areas of 9 to 10 tenths new and thin with some medium 
lake ice along the shores except for some thick lake ice along the 
eastern shore. 
Mid-March... Areas of 9 to 10 tenths new and thin with some medium lake 
ice along portions of the shores except for some thick lake ice along 
the eastern shore.
 
Lake Huron and Georgian Bay

 Average air temperatures were much below normal in the first half of 
February. Air temperatures will be below normal from mid-February to 
mid-March. 

 North Channel.
February 18 to March 15... Consolidated with thick lake ice.

 St Mary's River.
February 18 to March 15... Consolidated with thick lake ice.

 South of Manitoulin Island westward to north-western Lake Huron.
End of February... 9 to 10 tenths new and thin with some medium lake ice. 
Mid-March... 7 to 9 tenths thin and medium with some thick lake ice. 

 North-western Lake Huron near the Straits of Mackinac.
End of February... Consolidated thick lake ice along the shore and west 
of Bois Blanc Island into the Straits of Mackinac. 7 to 10 tenths thin 
and medium with some thick lake ice elsewhere.
Mid-March... Consolidated thick lake ice along the shore and west of Bois 
Blanc Island into the Straits of Mackinac. 7 to 9 tenths thin and 
medium with some thick lake ice elsewhere.

 From north-western Lake Huron to Saginaw Bay.
End of February...9 to 10 tenths thin and medium with some thick lake 
ice. 
Mid-March... 7 to 9 tenths thin and medium with some thick lake ice. 

 Saginaw Bay.
February 18 to March 15... Consolidated with thick lake ice.

 The southern and eastern shore of Lake Huron.
End of February...9 to 10 tenths medium and thick lake ice. 
Mid-March... 9 to 10 tenths medium and thick lake ice

 Georgian Bay.
End of February... Consolidated thick lake ice along the northern and 
eastern shores. 9 to 10 tenths medium and thick lake ice elsewhere. 
Mid-March... Consolidated thick lake ice along the northern and eastern 
shores. 9 to 10 tenths medium and thick lake ice elsewhere.

 Elsewhere in Lake Huron.
End of February...6 to 8 tenths thin and medium lake ice.  
Mid-March... 7 to 9 tenths thin and medium with some thick lake ice. 

 Lake Erie and Lake St. Clair

 Average air temperatures were below normal in the first half of 
February. Air temperatures will be below normal from mid-February to 
mid-March. 

 Lake St Clair and the Western Basin.
End of February... Consolidated thick lake ice in Lake St. Clair. 9 to 10 
tenths medium and thick lake ice in the Western Basin with consolidated 
thick lake ice along portions of the shores and around Pelee Island.
Mid-March... Consolidated thick lake ice in Lake St. Clair. 9 to 10 
tenths thick lake ice in the Western Basin with consolidated thick lake 
ice along portions of the shores and around Pelee Island.

 The rest of Lake Erie.
End of February...7 to 10 tenths thin and medium lake ice except 9 to 10 
tenths thick lake ice in the eastern section. Consolidated thick lake 
ice within 20 nautical miles of Buffalo.
Mid-March...Consolidated thick lake ice within 40 nautical miles of 
Buffalo. 7 to 10 tenths thick lake ice elsewhere. 

 Lake Ontario

 Average air temperatures were much below normal in the first half of 
February. Air temperatures will be below normal from mid-February to 
mid-March. 

 Northeastern Lake Ontario.
End of February... Consolidated thick lake ice in sheltered bays. 9 to 10 
tenths thin and medium lake ice from south of Trenton to Prince Edward 
Point. 7 to 10 tenths medium with some thick lake ice east of Prince 
Edward Point.
Mid-March... Consolidated thick lake ice in sheltered bays. 7 to 9 tenths 
thin and medium lake ice from south of Trenton to Prince Edward Point. 
7 to 9 tenths medium with some thick lake ice east of Prince Edward 
Point. 

 Bay of Quinte.
End of February... Consolidated with thick lake ice.
Mid-March... Consolidated with thick lake ice.

 St Lawrence River.
End of February... Consolidated with thick lake ice.  
Mid-March... Consolidated with thick lake ice.

 Elsewhere in Lake Ontario.
End of February... Large areas of new and thin lake ice along the shores 
and in the eastern half of the lake. Open water elsewhere.
Mid-March... 6 to 8 tenths thin and medium lake ice within 20 nautical 
miles of the shore in the eastern half of the lake. Open water 
elsewhere.

 END

 
 
 

 

 

Canadian 30-day ice outlook





 FECN19 CWIS 171800 
THIRTY DAY ICE OUTLOOK FOR THE GREAT LAKES ISSUED BY ENVIRONMENT CANADA 
ON 17 FEBRUARY 2015 FOR MID-FEBRUARY TO MID-MARCH.
THE NEXT 30 DAY ICE OUTLOOK WILL BE ISSUED ON 4 MARCH 2015.

 Lake Superior

 Average air temperatures were below normal in the first half of 
February. Air temperatures will be below normal from mid-February to 
mid-March. 

 Thunder Bay.
February 18 to March 15... Consolidated with thick lake ice.  

 Nipigon and Black Bays.
February 18 to March 15... Consolidated with thick lake ice.

 From Grand Marais Minnesota to the entrance to Nipigon Bay.
February 18 to March 15... 9 to 10 tenths thin and medium lake ice except 
9 to 10 tenths medium and thick lake ice from the shore to Isle Royale.

 From Grand Marais to Duluth.
End of February... 7 to 9 tenths new and thin with some medium lake ice 
except 9 to 10 tenths medium and thick lake ice within 20 nautical 
miles north of Duluth.
Mid-March...7 to 9 tenths new and thin with some medium lake ice except 9 
to 10 tenths medium and thick lake ice within 20 nautical miles north 
of Duluth.

 Southern Lake Superior west of Keweenaw Peninsula.
End of February...9 to 10 tenths medium and thick lake ice.
Mid-March... 9 to 10 tenths medium and thick lake ice.

 Southern Lake Superior east of the Keweenaw Peninsula.
End of February... 9 to 10 tenths medium and thick lake ice.
Mid-March... 9 to 10 tenths medium and thick lake ice.

 Whitefish Bay.
February 18 to March 15...Consolidated with thick lake ice.  

 From Whitefish Bay northwards to Michipicoten Bay.
End of February... 9 to 10 tenths thin and medium with some thick lake 
ice. Consolidated thick lake ice along portions of the shore. 
Mid-March... 9 to 10 tenths medium and thick lake ice. Consolidated thick 
lake ice along portions of the shore.

 From Michipicoten Bay to the entrance to Nipigon Bay.
End of February...9 to 10 tenths thin with some medium lake ice. 
Mid-March... 9 to 10 tenths thin and medium with some thick lake ice.

 Elsewhere in Lake Superior.
End of February...A small open water area in the eastern section of the 
lake otherwise 9 to 10 tenths thin and medium with some thick lake ice. 
Mid-March... 9 to 10 tenths medium and thick lake ice. 

 Lake Michigan

 Average air temperatures were below normal in the first half of 
February. Air temperatures will be below normal from mid-February to 
mid-March. 

 Green Bay.
End of February... Consolidated thick lake ice.
Mid-March... Consolidated thick lake ice in the southern two thirds of 
the bay and in the Bays de Noc. 9 to 10 tenths thick lake ice 
elsewhere.

 Northeastern Lake Michigan.
End of February... Consolidated thick lake ice from Seul Choix Point to 
the Straits of Mackinac with a narrow area of consolidated thick lake 
ice reaching Beaver Island. 7 to 10 tenths thin, medium and thick lake 
ice north of Frankfort. 
Mid-March... Consolidated thick lake ice from Seul Choix Point to the 
Straits of Mackinac with a narrow area of consolidated thick lake ice 
reaching Beaver Island. 7 to 10 tenths thin, medium and thick lake ice. 

 Elsewhere in Lake Michigan.
End of February... Areas of 9 to 10 tenths new and thin with some medium 
lake ice along the shores except for some thick lake ice along the 
eastern shore. 
Mid-March... Areas of 9 to 10 tenths new and thin with some medium lake 
ice along portions of the shores except for some thick lake ice along 
the eastern shore.
 
Lake Huron and Georgian Bay

 Average air temperatures were much below normal in the first half of 
February. Air temperatures will be below normal from mid-February to 
mid-March. 

 North Channel.
February 18 to March 15... Consolidated with thick lake ice.

 St Mary's River.
February 18 to March 15... Consolidated with thick lake ice.

 South of Manitoulin Island westward to north-western Lake Huron.
End of February... 9 to 10 tenths new and thin with some medium lake ice. 
Mid-March... 7 to 9 tenths thin and medium with some thick lake ice. 

 North-western Lake Huron near the Straits of Mackinac.
End of February... Consolidated thick lake ice along the shore and west 
of Bois Blanc Island into the Straits of Mackinac. 7 to 10 tenths thin 
and medium with some thick lake ice elsewhere.
Mid-March... Consolidated thick lake ice along the shore and west of Bois 
Blanc Island into the Straits of Mackinac. 7 to 9 tenths thin and 
medium with some thick lake ice elsewhere.

 From north-western Lake Huron to Saginaw Bay.
End of February...9 to 10 tenths thin and medium with some thick lake 
ice. 
Mid-March... 7 to 9 tenths thin and medium with some thick lake ice. 

 Saginaw Bay.
February 18 to March 15... Consolidated with thick lake ice.

 The southern and eastern shore of Lake Huron.
End of February...9 to 10 tenths medium and thick lake ice. 
Mid-March... 9 to 10 tenths medium and thick lake ice

 Georgian Bay.
End of February... Consolidated thick lake ice along the northern and 
eastern shores. 9 to 10 tenths medium and thick lake ice elsewhere. 
Mid-March... Consolidated thick lake ice along the northern and eastern 
shores. 9 to 10 tenths medium and thick lake ice elsewhere.

 Elsewhere in Lake Huron.
End of February...6 to 8 tenths thin and medium lake ice.  
Mid-March... 7 to 9 tenths thin and medium with some thick lake ice. 

 Lake Erie and Lake St. Clair

 Average air temperatures were below normal in the first half of 
February. Air temperatures will be below normal from mid-February to 
mid-March. 

 Lake St Clair and the Western Basin.
End of February... Consolidated thick lake ice in Lake St. Clair. 9 to 10 
tenths medium and thick lake ice in the Western Basin with consolidated 
thick lake ice along portions of the shores and around Pelee Island.
Mid-March... Consolidated thick lake ice in Lake St. Clair. 9 to 10 
tenths thick lake ice in the Western Basin with consolidated thick lake 
ice along portions of the shores and around Pelee Island.

 The rest of Lake Erie.
End of February...7 to 10 tenths thin and medium lake ice except 9 to 10 
tenths thick lake ice in the eastern section. Consolidated thick lake 
ice within 20 nautical miles of Buffalo.
Mid-March...Consolidated thick lake ice within 40 nautical miles of 
Buffalo. 7 to 10 tenths thick lake ice elsewhere. 

 Lake Ontario

 Average air temperatures were much below normal in the first half of 
February. Air temperatures will be below normal from mid-February to 
mid-March. 

 Northeastern Lake Ontario.
End of February... Consolidated thick lake ice in sheltered bays. 9 to 10 
tenths thin and medium lake ice from south of Trenton to Prince Edward 
Point. 7 to 10 tenths medium with some thick lake ice east of Prince 
Edward Point.
Mid-March... Consolidated thick lake ice in sheltered bays. 7 to 9 tenths 
thin and medium lake ice from south of Trenton to Prince Edward Point. 
7 to 9 tenths medium with some thick lake ice east of Prince Edward 
Point. 

 Bay of Quinte.
End of February... Consolidated with thick lake ice.
Mid-March... Consolidated with thick lake ice.

 St Lawrence River.
End of February... Consolidated with thick lake ice.  
Mid-March... Consolidated with thick lake ice.

 Elsewhere in Lake Ontario.
End of February... Large areas of new and thin lake ice along the shores 
and in the eastern half of the lake. Open water elsewhere.
Mid-March... 6 to 8 tenths thin and medium lake ice within 20 nautical 
miles of the shore in the eastern half of the lake. Open water 
elsewhere.

 END