429  
WOCN31 CWHX 181751  
TROPICAL CYCLONE INFORMATION STATEMENT  
FOR EASTERN CANADA  
UPDATED BY ENVIRONMENT CANADA  
AT 2:51 P.M. ADT SATURDAY 18 SEPTEMBER 2021.  
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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.  
 
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==DISCUSSION==  
 
FOR TROPICAL STORM ODETTE.  
 
THE NEXT INFORMATION STATEMENT WILL BE ISSUED BY 9:30 P.M. NDT.  
 
TROPICAL STORM ODETTE WILL SPREAD RAIN AND WIND OVER SOUTHEASTERN  
NEWFOUNDLAND SUNDAY INTO MONDAY.  
 
1. SUMMARY OF BASIC INFORMATION AT 3:30 P.M. NDT.  
 
LOCATION: 39.1.3 NORTH 66.3 WEST.  
 
ABOUT 750350 KILOMETRES SOUTHWEST OF SABLE ISLAND.  
 
MAXIMUM SUSTAINED WINDS: 75 KILOMETRES PER HOUR.  
 
PRESENT MOVEMENT: NORTHEAST AT 30 KILOMETRES PER HOUR.  
 
MINIMUM CENTRAL PRESSURE: 1002 MILLIBARS.  
 
2. PUBLIC WEATHER IMPACTS AND WARNINGS SUMMARY.  
 
DISCUSSION: THIS STORM WHICH IS TRAVELLING OVER THE WARM WATERS OF  
THE GULF STREAM CONTINUES TO EXHIBIT THE CHARACTERISTICS OF A STRONG  
FALL STORM THAT PRODUCES STRONG NORTHERLY WINDS AND HEAVY RAIN. A  
SHARP COLD FRONT APPROACHING THE REGION WILL REACH NEWFOUNDLAND ON  
SUNDAY AND WILL INTERACT WITH ODETTE'S MOISTURE TO ENHANCE THE  
RAINFALL OVER SOUTHEASTERN NEWFOUNDLAND LATE IN THE DAY SUNDAY AND  
SUNDAY NIGHT. RAINFALL AND WIND WARNINGS WILL BE ISSUED FOR  
SOUTHEASTERN NEWFOUNDLAND .  
 
THERE WILL BE SOME MINOR INFLUENCE IN NOVA SCOTIA'S WEATHER WITH  
GUSTY NORTHERLY WINDS ON SUNDAY - GUSTS COULD BE UP TO 70 KM/H IN  
CAPE BRETON. SOME ENHANCED RAINFALL OF AROUND 25 MM IS LIKELY OVER  
EASTERN NOVA SCOTIA SUNDAY MORNING AS ODETTE INTERACTS WITH THE COLD  
FRONT.  
 
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. THIS COULD HAVE SOME IMPACTS ON TREES, BUT ALSO  
WEAKENED INFRASTRUCTURES IN THE AFTERMATH OF HURRICANE LARRY. THIS  
COULD LEAD TO ADDITIONAL POWER INTERRUPTIONS.  
WIND WARNINGS FOR THE AVALON AND BURIN PENINSULA.  
 
B. RAINFALL.  
 
AN AREA OF RAIN ASSOCIATED DIRECTLY WITH THE STORM SHOULD PRODUCE 50  
TO 80 MM WITH THE POSSIBILITY OF 100 MM DURING THE SECOND HALF OF  
SUNDAY THROUGH MONDAY MORNING. IF THE HIGHER AMOUNTS MATERIALIZE,  
SOME LOCAL FLASH-TYPE FLOODING MAY OCCUR IN PRONE AREAS. FORECAST  
GUIDANCE IS ALSO SUGGESTING A SECOND AREA OF MAXIMUM RAINFALL WHICH  
WOULD EXTEND ALONG THE COLD FRONT FROM THE SOUTH COAST TO CENTRAL  
NEWFOUNDLAND. AT THIS TIME, AMOUNTS IN THOSE REGIONS ARE NOT  
ANTICIPATED TO EXCEED 50 MM.  
RAINFALL WARNINGS FOR THE AVALON PENINSULA.  
 
C. SURGE/WAVES.  
 
ALONG THE ATLANTIC COAST OF NOVA SCOTIA, WAVES COULD REACH 2 TO 3  
METRES STARTING SUNDAY MORNING. THESE WAVES ARE EXPECTED TO SUBSIDE  
SUNDAY NIGHT.  
 
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 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 WITH ODETTE.  
 
3. MARINE WEATHER IMPACTS AND WARNINGS SUMMARY.  
 
GALE TO STORM-FORCE WINDS ARE EXPECTED OVER MANY OFFSHORE MARINE  
AREAS INCLUDING THE GRAND BANKS AND THE SCOTIAN SLOPE WATERS.  
 
FORECASTER(S): COUTURIER  
 
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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