434  
WHUS73 KDTX 182056  
MWWDTX  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
356 PM EST FRI JAN 18 2019  
   
..ELEVATED WAVES AND HEAVY FREEZING SPRAY THIS WEEKEND
 
 
.DEVELOPING FRESH TO STRONG ONSHORE FLOW WILL SUPPORT ELEVATED WAVES  
IN THE NEARSHORE ZONES THROUGH THE WEEKEND AND FREQUENT GUSTS TO  
NEAR-GALES ESPECIALLY IN THE SOUTHERN BASIN OF LAKE HURON AND THE  
MICHIGAN WATERS OF LAKE ERIE. SMALL CRAFT ADVISORIES HAVE THEREFORE  
BEEN ISSUED. IN ADDITION, HEAVY FREEZING SPRAY IS EXPECTED NEAR THE  
TIP OF THE THUMB EARLY SATURDAY BEFORE EXPANDING THROUGH THE  
SOUTHERN BASIN LATE SATURDAY. A HEAVY FREEZING SPRAY WARNING IS  
THEREFORE ALSO IN EFFECT.  
 
LHZ421-441-190930-  
/O.NEW.KDTX.SC.Y.0007.190119T0200Z-190121T1200Z/  
/O.NEW.KDTX.UP.W.0002.190119T0600Z-190121T0600Z/  
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER  
SAGINAW BAY-PORT AUSTIN TO HARBOR BEACH MI-  
356 PM EST FRI JAN 18 2019  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 7 AM  
EST MONDAY...  
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 1 AM SATURDAY TO  
1 AM EST MONDAY...  
 
THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A  
HEAVY FREEZING SPRAY WARNING WHICH IS IN EFFECT FROM 1 AM  
SATURDAY TO 1 AM EST MONDAY. A SMALL CRAFT ADVISORY HAS ALSO BEEN  
ISSUED. THIS SMALL CRAFT ADVISORY IS IN EFFECT FROM 9 PM THIS  
EVENING TO 7 AM EST MONDAY.  
 
* EXPECT HEAVY FREEZING SPRAY TO OCCUR FROM 1 AM SATURDAY TO 1  
AM EST MONDAY.  
 
* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY, EXPECT  
SUSTAINED WINDS UP TO 24 KNOTS FROM THE NORTH WITH GUSTS UP TO  
31 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 8  
FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 11 FEET.  
 
* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 3 AM EST SUNDAY  
WITH THE LARGEST WAVES EXPECTED AROUND 7 AM EST SUNDAY.  
 
REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A HEAVY FREEZING SPRAY WARNING MEANS HEAVY FREEZING SPRAY IS  
EXPECTED TO RAPIDLY ACCUMULATE ON VESSELS. THESE CONDITIONS CAN  
BE EXTREMELY HAZARDOUS TO NAVIGATION. IT IS RECOMMENDED THAT  
MARINERS NOT TRAINED TO OPERATE IN THESE CONDITIONS OR VESSELS  
NOT PROPERLY EQUIPPED TO DO SO...REMAIN IN PORT OR AVOID THE  
WARING AREA.  
 
A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS  
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.  
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER  
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.  
 

 
 

 
 
LHZ442-443-190930-  
/O.NEW.KDTX.SC.Y.0007.190119T0200Z-190121T1200Z/  
/O.NEW.KDTX.UP.W.0002.190120T0000Z-190121T0600Z/  
HARBOR BEACH TO PORT SANILAC MI-PORT SANILAC TO PORT HURON MI-  
356 PM EST FRI JAN 18 2019  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 7 AM  
EST MONDAY...  
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 7 PM SATURDAY TO  
1 AM EST MONDAY...  
 
THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A  
HEAVY FREEZING SPRAY WARNING WHICH IS IN EFFECT FROM 7 PM  
SATURDAY TO 1 AM EST MONDAY. A SMALL CRAFT ADVISORY HAS ALSO BEEN  
ISSUED. THIS SMALL CRAFT ADVISORY IS IN EFFECT FROM 9 PM THIS  
EVENING TO 7 AM EST MONDAY.  
 
* EXPECT HEAVY FREEZING SPRAY TO OCCUR FROM 7 PM SATURDAY TO 1  
AM EST MONDAY.  
 
* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY, EXPECT  
SUSTAINED WINDS UP TO 25 KNOTS FROM THE NORTH WITH GUSTS UP TO  
32 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 8  
FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 11 FEET.  
 
* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 2 AM EST SUNDAY  
WITH THE LARGEST WAVES EXPECTED AROUND 7 AM EST SUNDAY.  
 
REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A HEAVY FREEZING SPRAY WARNING MEANS HEAVY FREEZING SPRAY IS  
EXPECTED TO RAPIDLY ACCUMULATE ON VESSELS. THESE CONDITIONS CAN  
BE EXTREMELY HAZARDOUS TO NAVIGATION. IT IS RECOMMENDED THAT  
MARINERS NOT TRAINED TO OPERATE IN THESE CONDITIONS OR VESSELS  
NOT PROPERLY EQUIPPED TO DO SO...REMAIN IN PORT OR AVOID THE  
WARING AREA.  
 
A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS  
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.  
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER  
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.  
 

 
 

 
 
LHZ362-363-462-190930-  
/O.NEW.KDTX.UP.W.0002.190119T0000Z-190121T0600Z/  
LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND  
5NM OFF SHORE-  
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF  
SHORE-  
LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM OFF SHORE-  
356 PM EST FRI JAN 18 2019  
 
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 7 PM THIS EVENING  
TO 1 AM EST MONDAY...  
 
THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A  
HEAVY FREEZING SPRAY WARNING WHICH IS IN EFFECT FROM 7 PM THIS  
EVENING TO 1 AM EST MONDAY.  
 
* EXPECT HEAVY FREEZING SPRAY TO OCCUR FROM 7 PM THIS EVENING TO  
1 AM EST MONDAY.  
 
REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A HEAVY FREEZING SPRAY WARNING MEANS HEAVY FREEZING SPRAY IS  
EXPECTED TO RAPIDLY ACCUMULATE ON VESSELS. THESE CONDITIONS CAN  
BE EXTREMELY HAZARDOUS TO NAVIGATION. IT IS RECOMMENDED THAT  
MARINERS NOT TRAINED TO OPERATE IN THESE CONDITIONS OR VESSELS  
NOT PROPERLY EQUIPPED TO DO SO...REMAIN IN PORT OR AVOID THE  
WARING AREA.  
 

 
 

 
 
LHZ463-464-190930-  
/O.NEW.KDTX.UP.W.0002.190120T0000Z-190121T0600Z/  
LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND 5NM OFF SHORE-  
LAKE HURON FROM PORT SANILAC TO PORT HURON BEYOND 5NM OFF SHORE-  
356 PM EST FRI JAN 18 2019  
 
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 7 PM SATURDAY TO  
1 AM EST MONDAY...  
 
THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A  
HEAVY FREEZING SPRAY WARNING WHICH IS IN EFFECT FROM 7 PM  
SATURDAY TO 1 AM EST MONDAY.  
 
* EXPECT HEAVY FREEZING SPRAY TO OCCUR FROM 7 PM SATURDAY TO 1  
AM EST MONDAY.  
 
REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A HEAVY FREEZING SPRAY WARNING MEANS HEAVY FREEZING SPRAY IS  
EXPECTED TO RAPIDLY ACCUMULATE ON VESSELS. THESE CONDITIONS CAN  
BE EXTREMELY HAZARDOUS TO NAVIGATION. IT IS RECOMMENDED THAT  
MARINERS NOT TRAINED TO OPERATE IN THESE CONDITIONS OR VESSELS  
NOT PROPERLY EQUIPPED TO DO SO...REMAIN IN PORT OR AVOID THE  
WARING AREA.  
 

 
 

 
 
LEZ444-190930-  
/O.NEW.KDTX.SC.Y.0007.190119T1200Z-190120T1500Z/  
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-  
356 PM EST FRI JAN 18 2019  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM SATURDAY TO 10 AM EST  
SUNDAY...  
 
THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A  
SMALL CRAFT ADVISORY WHICH IS IN EFFECT FROM 7 AM SATURDAY TO  
10 AM EST SUNDAY.  
 
* WIND AND WAVES: DURING THE SMALL CRAFT ADVISORY, EXPECT  
SUSTAINED WINDS UP TO 23 KNOTS FROM THE NORTHEAST WITH GUSTS  
UP TO 30 KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL  
BE 5 FEET WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 7 FEET.  
 
* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 6 PM EST  
SATURDAY WITH THE LARGEST WAVES EXPECTED AROUND 4 PM EST  
SATURDAY.  
 
REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS  
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.  
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER  
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.  
 

 
 

 
 
MR  
 
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