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Great Lakes Ice Outlook (CLEICELIO)

issued Monday Wednesday Friday


000
FZUS81 KCLE 202116
ICELIO

GREAT LAKES ICE OUTLOOK
NATIONAL WEATHER SERVICE CLEVELAND OHIO
516 PM EDT MON APR 20 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...
LOW PRESSURE ACROSS EASTERN LAKE SUPERIOR LATE THIS AFTERNOON WILL
MAKE IT TO NEAR JAMES BAY BEFORE REMAINING THERE THROUGH MID WEEK.
BY LATE IN THE WEEK IT WILL BEGIN TO REDEVELOP FURTHER EAST ACROSS
QUEBEC. A SERIES OF WEAK TROUGHS WILL ROTATE AROUND THE LOW WHILE
HIGH PRESSURE WILL REMAIN NEARLY STATIONARY ACROSS CENTRAL CANADA
AND THE NORTHERN PLAINS. THE HIGH WILL SLOWLY BUILD ACROSS THE
WESTERN LAKES LATE IN THE WEEK.

THIS WILL KEEP A PREDOMINATE NORTHWEST TO WEST-NORTHWEST FLOW ACROSS
THE THE MAJORITY OF THE LAKES THROUGH THE WEEK WITH SUBTLE SHIFTS
WITH EACH TROUGH PASSAGE. WINDS WILL BE WEST-SOUTHWEST ON LAKE ERIE
UNTIL MID WEEK WHEN THEY TOO WILL SHIFT TO THE WEST-NORTHWEST. THE
WEST-SOUTHWEST WINDS MAY EXCEED 25 KNOTS ON LAKE ERIE TUESDAY AND
WEDNESDAY.

TEMPERATURES WILL BE BELOW NORMAL ACROSS THE NORTHERN LAKES THROUGH
SATURDAY. ELSEWHERE TEMPERATURES WILL BE NEAR NORMAL TUESDAY...BUT
ALSO TURN COOLER AND BE BELOW NORMAL WEDNESDAY THROUGH SATURDAY.

IN GENERAL THE LIMITED ICE FIELDS WILL CONTINUE THEIR
DETERIORATION...BUT AT A SLOWER PACE THAN WHAT IT COULD BE THIS TIME
OF YEAR. BELOW NORMAL TEMPERATURES...CONSIDERABLE CLOUDINESS...AND
THE PERSISTENT WIND FLOW WILL INHIBIT FASTER DETERIORATION. NIGHT
LOWS WILL GET BELOW FREEZING ACROSS ALL OF THE LAKES WEDNESDAY
THROUGH SATURDAY.


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

 TEMPERATURE  FORECASTS FOR SELECTED CITIES

 LOCATION   04/21   04/22   04/23   04/24   04/25   04/26
   DULUTH  32  38  27  42  26  42  27  44  28  47  30  51
MARQUETTE  33  41  28  35  26  35  27  38  28  42  31  46
 GREENBAY  35  48  32  47  28  47  28  51  30  53  32  56
MILWAUKEE  38  51  34  48  32  47  31  47  33  47  35  52
  CHICAGO  39  55  36  51  34  53  34  53  35  53  37  59
 MUSKEGON  38  45  34  43  30  46  29  50  30  54  33  56
   ALPENA  36  47  32  40  28  40  27  44  30  47  32  48
  DETROIT  41  55  39  47  35  47  33  51  36  52  38  53
   TOLEDO  39  56  37  50  32  48  30  52  34  53  37  56
CLEVELAND  44  56  39  52  32  49  32  51  34  53  37  56
  BUFFALO  43  51  37  48  34  45  32  46  33  49  34  50


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 APR 20:

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

   DULUTH,   MN  APR   19 1896 1813
MARQUETTE,   MI  APR   19 1711 2236
SAU_S_MAR,   MI  APR   19 1305 2007
 GREENBAY,   WI  APR   19 1013 1072
MILWAUKEE,   WI  APR   19  332  500
  CHICAGO,   IL  APR   19   41  355
 MUSKEGON,   MI  APR   19   78  404
   ALPENA,   MI  APR   19  906 1430
  DETROIT,   MI  APR   19    0  387
   TOLEDO,   OH  APR   19    0  526
CLEVELAND,   OH  APR   19    0  321
  BUFFALO,   NY  APR   19  232  755

NORMAL TEMPS FOR SELECTED LOCATIONS AROUND THE
GREAT LAKES FOR MON APR 20

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

    DULUTH,MN  54  32
 MARQUETTE,MI  52  32
  GREENBAY,WI  54  32
 MILWAUKEE,WI  59  38
   CHICAGO,IL  62  41
  MUSKEGON,MI  58  40
    ALPENA,MI  54  32
   DETROIT,MI  62  41
    TOLEDO,OH  63  40
 CLEVELAND,OH  62  41
   BUFFALO,NY  59  40


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

$$




 


                             Freezing Degree Day Information

	CLEWRKLIO DEF 
TTAA00 KCLE 201715
 
FREEZING DEGREE DAY ACCUMULATIONS AT SELECTED STATIONS
COMPARED TO NORMAL CALCULATED ON Mon Apr 20:
 
LOCATION           DATE   NORMAL CURRENT
----------------------------------------
    
   DULUTH,   MN  APR   19 1896 1813    
MARQUETTE,   MI  APR   19 1711 2236    
SAU_S_MAR,   MI  APR   19 1305 2007    
 GREENBAY,   WI  APR   19 1013 1072    
MILWAUKEE,   WI  APR   19  332  500    
  CHICAGO,   IL  APR   19   41  355    
 MUSKEGON,   MI  APR   19   78  404    
   ALPENA,   MI  APR   19  906 1430    
  DETROIT,   MI  APR   19    0  387    
   TOLEDO,   OH  APR   19    0  526    
CLEVELAND,   OH  APR   19    0  321    
  BUFFALO,   NY  APR   19  232  755    




                         Canadian Daily Ice Forecast 





 FICN19 CWIS 201546
Ice forecasts for the Great Lakes issued by Environment Canada at
12:00 p.m. EDT Monday 20 April 2015 for today tonight and Tuesday.
The next scheduled forecasts will be issued at 12:00 p.m. Tuesday.

 Eastern Lake Superior.
Special ice warning in effect.
2 tenths of thick lake ice except 9 tenths of thick lake ice over
the eastern section. Unusual sence of lake ice in eastern and
western section.

 Western Lake Superior.
Special ice warning in effect.
Open water except 2 tenths of thick lake ice over the extreme
southeastern section. 9 tenths of thick lake ice including 2 tenths
of very thick lake ice in Thunder Bay. Consolidated very thick lake
ice in Black Bay and Nipigon Bay. Unusual sence of lake ice in
northern and eastern section.

 Whitefish Bay.
9 tenths of thick lake ice including 2 tenths of very thick lake
ice.

 Northern Lake Huron.
Special ice warning in effect.
Open water except 8 tenths of thick lake ice in the extreme eastern
section. 1 tenth of rotten thick lake ice in the extreme
northwestern section of the lake. Unusual sence of lake ice in
the eastern section and in the extreme northwestern section.

 Southern Lake Huron.
Special ice warning in effect.
Open water except 6 tenths of thick lake ice near the eastern shore.
Unusual sence of lake ice in the eastern section.

 North Channel.
Consolidated thick lake ice including 2 tenths of very thick lake
ice.

 Georgian Bay.
Special ice warning in effect.
Open water except 3 tenths of thick lake ice in strips and patches
in the north section. 8 tenths of thick lake ice near the eastern
shore. Consolidated thick lake ice along the eastern and northern
shore. Unusual sence of lake ice in the bay.

 Lake St. Clair.
Ice free.

 Eastern Lake Erie.
Special ice warning in effect.
Open water except 2 tenths of rotten very thick lake ice in strips
and patches over the central and eastern sections. Unusual sence
of lake ice in the central and eastern sections.

 Western Lake Erie.
Special ice warning in effect.
Open water except 1 tenth of rotten thick lake ice in strips and
patches in the extreme eastern section. Unusual sence of lake ice
in the extreme eastern section.

 Eastern Lake Ontario.
Special ice warning in effect.
Open water ice except 1 tenth of rotten thick lake ice in the
extreme eastern section. Unusual sence of lake ice in the extreme
eastern section.

 Western Lake Ontario.
Ice free.

 Northern Lake Michigan.
Special ice warning in effect.
Open water except 9 tenths of thick lake ice along the northeast
shores and Little Traverse Bay. Areas of 4 tenths of thick lake ice
in strips and patches south and east of Beaver Island. Unusual
sence of lake ice southeast of Beaver Island.

 Southern Lake Michigan.
Open water.

 Green Bay.
Open water except 8 tenths of thick lake ice in the Bays de Noc.

 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 151800 
THIRTY DAY ICE OUTLOOK FOR THE GREAT LAKES ISSUED BY ENVIRONMENT CANADA 
ON 15 APRIL 2015 FOR MID-APRIL TO MID-MAY.
THE NEXT 30 DAY ICE OUTLOOK WILL BE ISSUED ON 28 APRIL 2015.

 Lake Superior

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

 Thunder Bay.
End of April... Consolidated very thick lake ice in the eastern portion 
of the bay. A narrow band of very thick lake ice elsewhere along the 
shore.
May 1 to 15... Clearing in the first week.

 Nipigon and Black Bays.
April 16 to May 15... Break-up near the end of April. Clearing in the 
second week of May. .  

 From Grand Marais Minnesota to the entrance to Nipigon Bay.
End of April... Open water.
Mid-May... Ice free.

 From Grand Marais to Duluth.
End of April... Open water to ice free.
Mid-May... Ice free.

 Southern Lake Superior west of Keweenaw Peninsula.
End of April... Open water to ice free. 
Mid-May... Ice free.

 Southern Lake Superior east of the Keweenaw Peninsula.
End of April...Patches of thick and very thick lake ice.  
Mid-May... Open water.

 Whitefish Bay.
April 16 to 30... Break-up in the first week. 8 to 10 tenths thick and 
very thick lake ice at the end of April.
Mid May... Strips and patches of thick and very thick lake ice. 

 From Whitefish Bay northwards to Michipicoten Bay.
End of April... 8 to 10 tenths thick and very thick lake ice within 60 
nautical miles of the eastern shore. 1 to 3 tenths thick lake ice 
elsewhere.
Mid-May... Strips and patches of thick and very thick lake ice. 

 From Michipicoten Bay to the entrance to Nipigon Bay.
End of April... A narrow band of thick and very thick lake ice near the 
shore. 
May 1 to 15...Clearing in the first week. 

 Elsewhere in Lake Superior.
End of April...1 to 3 tenths thick lake ice in eastern Lake Superior. 
Open water to ice free elsewhere.
Mid-May... Open water to ice free.

 Lake Michigan

 Average air temperatures were above normal in the first half of April 
except near normal in the northern section. Air temperatures are 
forecast to be near normal from mid-April to mid-May. 

 Green Bay.
April 16 to 30...Bays de Noc clearing in the first week. 
Mid-May... Ice free. 

 Northeastern Lake Michigan.
April 16 to 30... Clearing near the end of the month. 
Mid-May... Open water.

 Elsewhere in Lake Michigan.
End of April...Ice free.
Mid-May... Ice free.
 
Lake Huron and Georgian Bay

 Average air temperatures were near normal in the first half of April 
except above normal in the south-western section. Air temperatures are 
forecast to be near normal from mid-April to mid-May. 

 North Channel.
April 16 to 30...Break-up in the last week. 
May 1 to 15... Clearing in the first week.

 St Mary's River.
April 16 to 30...Break-up in the first week. 
May 1 to 15...Clearing in the first week.

 South of Manitoulin Island westward to north-western Lake Huron.
End of April... Open water.
Mid-May... Ice free.

 North-western Lake Huron near the Straits of Mackinac.
End of April... Clearing near the end of the month.
Mid-May...  Ice free.

 From north-western Lake Huron to Saginaw Bay.
End of April... Open water. 
Mid-May... Ice free.

 Saginaw Bay.
April 16 to May 15... Open water to ice free.

 The southern and eastern shore of Lake Huron.
End of April... Open water except for 9 to 10 tenths thick lake ice near 
the Bruce Peninsula. 
Mid-May... Ice free.

 Georgian Bay.
April 16 to 30... Break-up of the fast ice in the first week. Clearing 
near the end of April.
Mid-May... Ice free.

 Elsewhere in Lake Huron.
End of April...Open water to ice free.
Mid-May... Ice free.

 Lake Erie and Lake St. Clair

 Average air temperatures were above normal in the first half of April. 
Air temperatures are forecast to be near normal from mid-April to mid-
May. 

 Lake St Clair and the Western Basin.
April 16 to May 15... Ice free.

 The rest of Lake Erie.
End of April...Patches of thick and very thick lake ice remaining at the 
eastern end of the lake.
May 1 to 15...Clearing in the first week.

 Lake Ontario

 Average air temperatures were near normal in the first half of April. 
Air temperatures are forecast to be near normal from mid-April to mid-
May.  

 Northeastern Lake Ontario.
April 16 to 30... Clearing in the first week.
Mid-May... Ice free.

 Bay of Quinte.
End of April...Ice free.
Mid-May... Ice free.

 St Lawrence River.
April 16 to 30... Clearing in the first week.
Mid-May... Ice free.

 Elsewhere in Lake Ontario.
End of April... Open water to ice free.
Mid-May... Ice free.

 END

 
 
 

 

 

Canadian 30-day ice outlook





 FECN19 CWIS 151800 
THIRTY DAY ICE OUTLOOK FOR THE GREAT LAKES ISSUED BY ENVIRONMENT CANADA 
ON 15 APRIL 2015 FOR MID-APRIL TO MID-MAY.
THE NEXT 30 DAY ICE OUTLOOK WILL BE ISSUED ON 28 APRIL 2015.

 Lake Superior

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

 Thunder Bay.
End of April... Consolidated very thick lake ice in the eastern portion 
of the bay. A narrow band of very thick lake ice elsewhere along the 
shore.
May 1 to 15... Clearing in the first week.

 Nipigon and Black Bays.
April 16 to May 15... Break-up near the end of April. Clearing in the 
second week of May. .  

 From Grand Marais Minnesota to the entrance to Nipigon Bay.
End of April... Open water.
Mid-May... Ice free.

 From Grand Marais to Duluth.
End of April... Open water to ice free.
Mid-May... Ice free.

 Southern Lake Superior west of Keweenaw Peninsula.
End of April... Open water to ice free. 
Mid-May... Ice free.

 Southern Lake Superior east of the Keweenaw Peninsula.
End of April...Patches of thick and very thick lake ice.  
Mid-May... Open water.

 Whitefish Bay.
April 16 to 30... Break-up in the first week. 8 to 10 tenths thick and 
very thick lake ice at the end of April.
Mid May... Strips and patches of thick and very thick lake ice. 

 From Whitefish Bay northwards to Michipicoten Bay.
End of April... 8 to 10 tenths thick and very thick lake ice within 60 
nautical miles of the eastern shore. 1 to 3 tenths thick lake ice 
elsewhere.
Mid-May... Strips and patches of thick and very thick lake ice. 

 From Michipicoten Bay to the entrance to Nipigon Bay.
End of April... A narrow band of thick and very thick lake ice near the 
shore. 
May 1 to 15...Clearing in the first week. 

 Elsewhere in Lake Superior.
End of April...1 to 3 tenths thick lake ice in eastern Lake Superior. 
Open water to ice free elsewhere.
Mid-May... Open water to ice free.

 Lake Michigan

 Average air temperatures were above normal in the first half of April 
except near normal in the northern section. Air temperatures are 
forecast to be near normal from mid-April to mid-May. 

 Green Bay.
April 16 to 30...Bays de Noc clearing in the first week. 
Mid-May... Ice free. 

 Northeastern Lake Michigan.
April 16 to 30... Clearing near the end of the month. 
Mid-May... Open water.

 Elsewhere in Lake Michigan.
End of April...Ice free.
Mid-May... Ice free.
 
Lake Huron and Georgian Bay

 Average air temperatures were near normal in the first half of April 
except above normal in the south-western section. Air temperatures are 
forecast to be near normal from mid-April to mid-May. 

 North Channel.
April 16 to 30...Break-up in the last week. 
May 1 to 15... Clearing in the first week.

 St Mary's River.
April 16 to 30...Break-up in the first week. 
May 1 to 15...Clearing in the first week.

 South of Manitoulin Island westward to north-western Lake Huron.
End of April... Open water.
Mid-May... Ice free.

 North-western Lake Huron near the Straits of Mackinac.
End of April... Clearing near the end of the month.
Mid-May...  Ice free.

 From north-western Lake Huron to Saginaw Bay.
End of April... Open water. 
Mid-May... Ice free.

 Saginaw Bay.
April 16 to May 15... Open water to ice free.

 The southern and eastern shore of Lake Huron.
End of April... Open water except for 9 to 10 tenths thick lake ice near 
the Bruce Peninsula. 
Mid-May... Ice free.

 Georgian Bay.
April 16 to 30... Break-up of the fast ice in the first week. Clearing 
near the end of April.
Mid-May... Ice free.

 Elsewhere in Lake Huron.
End of April...Open water to ice free.
Mid-May... Ice free.

 Lake Erie and Lake St. Clair

 Average air temperatures were above normal in the first half of April. 
Air temperatures are forecast to be near normal from mid-April to mid-
May. 

 Lake St Clair and the Western Basin.
April 16 to May 15... Ice free.

 The rest of Lake Erie.
End of April...Patches of thick and very thick lake ice remaining at the 
eastern end of the lake.
May 1 to 15...Clearing in the first week.

 Lake Ontario

 Average air temperatures were near normal in the first half of April. 
Air temperatures are forecast to be near normal from mid-April to mid-
May.  

 Northeastern Lake Ontario.
April 16 to 30... Clearing in the first week.
Mid-May... Ice free.

 Bay of Quinte.
End of April...Ice free.
Mid-May... Ice free.

 St Lawrence River.
April 16 to 30... Clearing in the first week.
Mid-May... Ice free.

 Elsewhere in Lake Ontario.
End of April... Open water to ice free.
Mid-May... Ice free.

 END