057  
WOCN31 CWHX 190612  
TROPICAL CYCLONE INFORMATION STATEMENT  
FOR EASTERN CANADA  
UPDATED BY ENVIRONMENT CANADA  
AT 3:12 A.M. ADT MONDAY 19 AUGUST 2024.  
---------------------------------------------------------------------  
TROPICAL CYCLONE INFORMATION STATEMENT FOR:  
ST. JOHN'S AND VICINITY  
AVALON PENINSULA NORTH  
AVALON PENINSULA SOUTHEAST  
AVALON PENINSULA SOUTHWEST  
CLARENVILLE AND VICINITY  
BONAVISTA PENINSULA  
BURIN PENINSULA  
GEORGES BANK  
WEST SCOTIAN SLOPE  
SABLE  
EAST SCOTIAN SLOPE  
BANQUEREAU  
LAURENTIAN FAN  
SOUTHWEST COAST  
SOUTH COAST  
EAST COAST  
NORTHERN GRAND BANKS  
SOUTHEASTERN GRAND BANKS  
SOUTHWESTERN GRAND BANKS.  
 
---------------------------------------------------------------------  
==DISCUSSION==  
 
FOR HURRICANE ERNESTO.  
 
THE NEXT INFORMATION STATEMENT WILL BE ISSUED BY 9:00 A.M. ADT.  
 
ERNESTO IS SLOWLY HEADING TOWARD CANADIAN OFFSHORE WATERS, AND IS  
STILL EXPECTED TO TRACK WELL SOUTHEAST OF THE MARITIMES TODAY. THE  
ONLY CANADIAN IMPACTS EXPECTED ARE MODERATE TO HEAVY SURF ALONG THE  
ATLANTIC COAST OF NOVA SCOTIA, AND SOME RAIN AND MODERATE WINDS TO  
SOUTHEASTERNMOST NEWFOUNDLAND. LARGE WAVES CAN BE EXPECTED THERE  
LATER TODAY.  
 
1. SUMMARY OF BASIC INFORMATION AT 3:00 A.M. ADT.  
 
LOCATION: NEAR 39.4 NORTH 61.1 WEST.  
 
ABOUT 512 KILOMETRES SOUTH OF SABLE ISLAND.  
 
MAXIMUM SUSTAINED WINDS: 140 KM/H.  
 
PRESENT MOVEMENT: NORTH-NORTHEAST AT 43 KILOMETRES PER HOUR.  
 
MINIMUM CENTRAL PRESSURE: 975 MILLIBARS.  
 
2. PUBLIC WEATHER IMPACTS AND WARNINGS SUMMARY.  
 
THE ONLY EXPECTED IMPACTS FOR NOVA SCOTIA WILL BE MODERATE TO HEAVY  
SURF CONDITIONS WITH A RISK OF RIP CURRENTS ALONG THE ATLANTIC COAST  
OF THE PROVINCE TODAY. HEAVY DOWNPOURS FROM A VERY TROPICAL AIRMASS  
- BUT NOT DIRECTLY FROM ERNESTO - ARE LIKELY ACROSS THE PROVINCE  
TODAY.  
 
HURRICANE ERNESTO WILL BE TRANSITIONING INTO A POST-TROPICAL STORM  
AS IT PASSES SOUTH OF THE AVALON PENINSULA OF NEWFOUNDLAND LATER  
TODAY. IT MAY PASS CLOSE ENOUGH, HOWEVER, TO BRING SOME RAIN AND  
WIND TO PORTIONS OF THE AVALON PENINSULA, AND TO A LESSER EXTENT THE  
BONAVISTA AND BURIN PENINSULAS. THERE WILL BE LARGE BREAKING WAVES  
GIVING A RISK OF SOME COASTAL FLOODING FOR THE SOUTHERN AVALON AND  
PLACENTIA BAY. THERE COULD BE SOME MINOR DAMAGE TO DOCKS AND COASTAL  
STRUCTURES.  
 
DETAILS:  
 
A. WIND.  
 
LATER TODAY, ERNESTO IS EXPECTED TO TRACK CLOSE ENOUGH TO  
NEWFOUNDLAND TO BRING MODERATE WINDS WITH IT. HIGHEST WINDS  
OCCURRING SOUTH OF THE STORM TRACK ARE NOT LIKELY TO BE A CONCERN  
FOR THE ISLAND. IT IS IMPORTANT TO STAY UP TO DATE WITH FORECAST  
UPDATES IN CASE THE STORM TRACKS FARTHER NORTH. WIND GUSTS OF 60 TO  
80 KM/H ARE CURRENTLY FORECAST FOR THE SOUTHERN AVALON MONDAY  
EVENING.  
 
B. RAINFALL.  
 
AS ERNESTO PASSES SOUTH OR NEAR THE AVALON PENINSULA, A SHORT PERIOD  
OF HEAVY RAIN IS POSSIBLE OVER A 3 TO 6-HOUR WINDOW. RAINFALL TOTALS  
MAY REACH 45 TO 60 MM LOCALLY UNDER THE HEAVIEST RAIN BANDS THIS  
EVENING AND TONIGHT, PARTICULARLY OVER THE EXTREME SOUTHERN PORTIONS  
OF THE AVALON WHERE A RAINFALL WARNING IS NOW IN EFFECT.  
 
C. SURGE/WAVES.  
 
FOR SOUTHEASTERN NEWFOUNDLAND, LARGE WAVES WILL ARRIVE AND BUILD  
FROM THE SOUTHWEST TODAY, AND WILL DIMINISH ON TUESDAY. THESE  
BREAKING WAVES COULD BRING THE POSSIBILITY OF SOME COASTAL FLOODING,  
PARTICULARLY ALONG SOUTHWEST-FACING SHORELINES FROM BURIN EAST TO  
AVALON REGIONS. REPEAT: THERE COULD BE SOME MINOR DAMAGE TO DOCKS  
AND LOW-LYING COASTAL STRUCTURES.  
 
GIVEN THE LARGE SIZE OF THE STORM, LONG-PERIOD OCEAN SWELLS HAVE  
ALREADY REACHED THE ATLANTIC COAST OF NOVA SCOTIA. THESE SWELLS WILL  
CONTINUE TO BRING HAZARDOUS SURF AND POSSIBLE RIP CURRENTS, AND  
BEACHGOERS AND SIGHT-SEERS ARE ENCOURAGED TO EXERCISE CAUTION TODAY.  
 
3. MARINE WEATHER IMPACTS AND WARNINGS SUMMARY.  
 
HURRICANE FORCE WIND WARNINGS ARE IN EFFECT FOR THE CANADIAN  
OFFSHORE WATERS OF LAURENTIAN FAN AND THE SOUTHWESTERN GRAND BANKS  
FOR TODAY. THESE AREAS COULD ALSO SEE SIGNIFICANT WAVE HEIGHTS OF 10  
TO 14 METRES JUST SOUTH OF ERNESTO'S TRACK. PLEASE REFER TO OUR  
LOCAL MARINE FORECASTS FOR DETAILS ON WINDS AND EXPECTED WAVE  
CONDITIONS FOR OFFSHORE WATERS.  
 
FORECASTERS: MARCH/WHITE  
 
PLEASE CONTINUE TO MONITOR ALERTS ISSUED BY THE CANADIAN HURRICANE  
CENTRE AND FORECASTS ISSUED BY ENVIRONMENT CANADA.  
 
HTTP://WEATHER.GC.CA  
 
END/ASPC  
 
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