779  
WOCN31 CWHX 190531  
TROPICAL CYCLONE INFORMATION STATEMENT  
FOR EASTERN CANADA  
UPDATED BY ENVIRONMENT CANADA  
AT 2:31 A.M. ADT SUNDAY 19 SEPTEMBER 2021.  
---------------------------------------------------------------------  
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.  
 
---------------------------------------------------------------------  
==DISCUSSION==  
 
FOR TROPICAL STORM ODETTE.  
 
THIS IS THE LAST STATEMENT ON POST-TROPICAL STORM ODETTE.  
 
POST-TROPICAL STORM ODETTE WILL SPREAD RAIN AND WIND OVER  
SOUTHEASTERN NEWFOUNDLAND THIS AFTERNOON INTO MONDAY.  
 
1. SUMMARY OF BASIC INFORMATION AT 3:30 A.M. NDT.  
 
LOCATION: 40.8 NORTH 61.5 WEST.  
 
ABOUT 200 KILOMETRES SOUTH-SOUTHWEST OF SABLE ISLAND.  
 
MAXIMUM SUSTAINED WINDS: 85 KILOMETRES PER HOUR.  
 
PRESENT MOVEMENT: NORTHEAST AT 32 KILOMETRES PER HOUR.  
 
MINIMUM CENTRAL PRESSURE: 999 MILLIBARS.  
 
2. PUBLIC WEATHER IMPACTS AND WARNINGS SUMMARY.  
 
DISCUSSION: THIS STORM WHICH IS LEAVING THE WARM WATERS OF THE GULF  
STREAM EXHIBITS THE CHARACTERISTICS OF A STRONG FALL STORM THAT  
PRODUCES STRONG NORTHERLY WINDS AND HEAVY RAIN. A SHARP COLD FRONT  
MOVING ACROSS NEWFOUNDLAND TODAY WILL INTERACT WITH THE MOISTURE  
FROM THE POST-TROPICAL STORM TO ENHANCE THE RAINFALL OVER  
SOUTHEASTERN PORTIONS OF THE ISLAND LATE THIS AFTERNOON AND INTO THE  
OVERNIGHT HOURS. RAINFALL AND WIND WARNINGS HAVE BEEN ISSUED FOR  
SOUTHEASTERN NEWFOUNDLAND. A RAINFALL WARNING IS ALSO IN EFFECT FOR  
BURGEO - RAMEA.  
 
THERE WILL BE SOME MINOR INFLUENCE IN NOVA SCOTIA'S WEATHER WITH  
GUSTY NORTHERLY WINDS TODAY - GUSTS UP TO 60 KM/H ARE EXPECTED IN  
EASTERN CAPE BRETON. SOME ENHANCED RAINFALL TOTALS OF AROUND 20 TO  
40 MM IS LIKELY OVER EASTERN NOVA SCOTIA.  
 
A. WIND.  
 
FOR NEWFOUNDLAND, STRONG NORTHERLY WINDS GUSTING BETWEEN 80 TO 100  
KM/H ARE LIKELY WITH COASTAL GUSTS TO 120 KM/H OVER THE SOUTHERN  
AVALON PENINSULA BEGINNING THIS EVENING. THESE SEVERE WINDS WILL  
BEGIN TO DIMINISH LATE OVERNIGHT AND EARLY MONDAY MORNING. THESE  
WINDS COULD HAVE SOME IMPACTS ON TREES, BUT ALSO ON WEAKENED  
INFRASTRUCTURES IN THE AFTERMATH OF HURRICANE LARRY. THIS COULD LEAD  
TO ADDITIONAL POWER INTERRUPTIONS.  
 
WIND WARNINGS ARE IN EFFECT FOR THE AVALON AND BURIN PENINSULAS.  
 
B. RAINFALL.  
 
AN AREA OF RAIN ASSOCIATED DIRECTLY WITH THE STORM IS FORECAST TO  
PRODUCE 40 TO 75 MM WITH THE POSSIBILITY OF 90 MM LATE THIS  
AFTERNOON THROUGH MONDAY MORNING OVER SOUTHEASTERN MOST PORTIONS OF  
NEWFOUNDLAND. IF THE HIGHER AMOUNTS MATERIALIZE, SOME LOCAL  
FLASH-TYPE FLOODING MAY OCCUR IN PRONE AREAS. A SECOND AREA OF HEAVY  
RAINFALL WITH PERSISTENT THUNDERSTORMS IS EXTENDING ALONG THE COLD  
FRONT FROM THE SOUTHWEST COAST INTO CENTRAL NEWFOUNDLAND THIS  
MORNING. RAINFALL AMOUNTS OF UP TO 60 MM ARE POSSIBLE IN THIS BAND.  
RAINFALL WARNINGS ARE IN EFFECT FOR THE AVALON PENINSULA AND BURGEO  
- RAMEA.  
 
C. SURGE/WAVES.  
 
ALONG THE ATLANTIC COAST OF NOVA SCOTIA, WAVES COULD REACH 2 TO 3  
METRES STARTING THIS MORNING. THESE WAVES ARE EXPECTED TO SUBSIDE  
OVERNIGHT TONIGHT.  
 
AS THE STORM ENTERS THE SOUTHERN GRAND BANKS, HEAVY WAVE ACTION  
ACCOMPANYING THE WINDS CAN BE EXPECTED ALONG NORTHEAST-FACING COASTS  
IN EASTERN NEWFOUNDLAND. WAVES OF 2 TO 3 METRES WILL REACH THE SOUTH  
COAST OF NEWFOUNDLAND SUNDAY EVENING, AND THEN INCREASE TO 3 TO 5  
METRES ALONG THE EAST COAST OF THE AVALON PENINSULA OVERNIGHT SUNDAY  
INTO MONDAY. THESE WAVES ARE EXPECTED TO GRADUALLY SUBSIDE MONDAY  
NIGHT.  
STORM SURGE IS NOT EXPECTED TO BE SEVERE.  
 
3. MARINE WEATHER IMPACTS AND WARNINGS SUMMARY.  
 
GALE TO STORM-FORCE WINDS ARE EXPECTED OVER MANY OFFSHORE MARINE  
AREAS INCLUDING THE GRAND BANKS, SCOTIAN SLOPE WATERS, AND THE SOUTH  
COAST AND EAST COAST MARINE REGIONS OF NEWFOUNDLAND. WAVES OF 6 TO 8  
METRES ARE FORECAST TO DEVELOP IN LAURENTIAN FAN TONIGHT AND SUBSIDE  
ON MONDAY. WAVES WILL BUILD TO 6 TO 8 METRES OVERNIGHT IN THE  
SOUTHERN GRAND BANKS AND BUILD FURTHER TO 8 TO 10 METRES ON MONDAY.  
THESE WAVES WILL BEGIN TO SUBSIDE ON MONDAY NIGHT AND TUESDAY  
MORNING AS THE REMNANTS OF ODETTE PUSH OFF TO THE SOUTHEAST.  
 
FOR UP TO DATE INFORMATION ON THE IMPACTS OF ODETTE, PLEASE MONITOR  
YOUR LOCAL FORECASTS AND ALERTS PROVIDED BY THE NEWFOUNDLAND AND  
LABRADOR WEATHER OFFICE.  
FORECASTER(S): CLEMENTS  
 
PLEASE CONTINUE TO MONITOR ALERTS ISSUED BY THE CANADIAN HURRICANE  
CENTRE AND FORECASTS ISSUED BY ENVIRONMENT CANADA.  
 
HTTP://WEATHER.GC.CA  
 
END/ASPC  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab CANADA Page Main Text Page