731
WOCN31 CWHX 311817
TROPICAL CYCLONE INFORMATION STATEMENT
FOR EASTERN CANADA
UPDATED BY ENVIRONMENT CANADA
AT 3:17 P.M. ADT FRIDAY 31 OCTOBER 2025.
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TROPICAL CYCLONE INFORMATION STATEMENT FOR:
AVALON PENINSULA SOUTHEAST
AVALON PENINSULA SOUTHWEST
LAURENTIAN FAN
SOUTH COAST - CAPE ST. MARY'S AND EAST
EAST COAST - CAPE ST. FRANCIS AND SOUTH
NORTHERN GRAND BANKS
SOUTHEASTERN GRAND BANKS
SOUTHWESTERN GRAND BANKS.
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==DISCUSSION==
THE NEXT (INTERMEDIATE) INFORMATION STATEMENT WILL BE ISSUED BY 6:30
P.M. NDT FOLLOWED BY THE NEXT FULL STATEMENT BY 9:30 P.M. NDT.
NOW (HURRICANE-STRENGTH) POST-TROPICAL STORM MELISSA CONTINUES
MOVING NORTHEASTWARD TOWARD THE MARITIMES MARINE DISTRICT. MELISSA
IS EXPECTED TO REACH LAURENTIAN FAN BY LATE AFTERNOON, THEN CONTINUE
NORTHEASTWARD INTO NEWFOUNDLAND WATERS PASSING CLOSE TO THE
SOUTHEASTERN AVALON PENINSULA LATE TONIGHT INTO EARLY SATURDAY. A
PERIOD OF HEAVY RAIN, STRONG WINDS ALONG WITH HEAVY SURF IS
EXPECTED.
1. SUMMARY OF BASIC INFORMATION AT 3:30 P.M. NDT.
LOCATION: 40.4 NORTH 59.5 WEST.
ABOUT 860 KILOMETRES SOUTHWEST OF CAPE RACE.
MAXIMUM SUSTAINED WINDS: 130 KILOMETRES PER HOUR.
PRESENT MOVEMENT: NORTHEAST AT 75 KILOMETRES PER HOUR.
MINIMUM CENTRAL PRESSURE: 974 MILLIBARS.
2. PUBLIC WEATHER IMPACTS AND WARNINGS SUMMARY.
MELISSA HAS NOW BEEN DECLARED POST-TROPICAL ALTHOUGH THERE ARE STILL
SOME TROPICAL CHARACTERISTICS. THE STORM WILL BE PASSING NEAR OR
SOUTH OF THE AVALON PENINSULA OF NEWFOUNDLAND EARLY ON SATURDAY. IF
IT ENDS UP TRACKING FURTHER NORTHWEST, HEAVY RAIN AND STRONGER WINDS
MAY BE FELT FOR PARTS OF THE AVALON. THERE WILL BE LARGE WAVES AND
HEAVY SURF FOR THE SOUTHERN COAST OF NEWFOUNDLAND BEGINNING LATE
THIS EVENING AND CONTINUING ON SATURDAY, PRIMARILY FROM THE LARGE
NON-TROPICAL LOW AND TO A LESSER EXTENT, FROM MELISSA.
A. WIND.
THERE IS A CHANCE THAT PARTS OF THE AVALON COULD BE WITHIN THE STORM
CIRCULATION FOR A BRIEF PERIOD AND THEREFORE WOULD SEE SOME HIGH
WIND GUSTS DURING THAT TIME. IF THE CENTRE OF THE STORM PASSES SOUTH
AND EAST OF LAND (WHICH IS THE OFFICIAL FORECAST), THE HIGHEST WINDS
WOULD REMAIN OFFSHORE. REGARDLESS, GUSTS REACHING 90 KM/H ARE
POSSIBLE FOR PARTS OF THE SOUTHERN AND EASTERN COASTLINE OF THE
AVALON PENINSULA OVERNIGHT TONIGHT. STRONG SOUTHWEST WINDS WILL ALSO
PERSIST ACROSS THE REGION ON SATURDAY.
B. RAINFALL.
WITH MELISSA EXPECTED TO TRACK NEAR OR JUST OFFSHORE OF THE AVALON
PENINSULA, A SHORT PERIOD OF HEAVY RAIN IS POSSIBLE OVER A 3 TO 6
HOUR WINDOW TONIGHT. AT THE LARGER SCALE, THERE WILL BE SOME
ENHANCEMENT OF MOISTURE ASSOCIATED WITH THE NON-TROPICAL LOW
PRESSURE SYSTEM (WHOSE CENTRE WILL TRACK UP THE ST. LAWRENCE RIVER
VALLEY) GIVING A PERIOD OF HEAVY RAIN FROM SOUTHEASTERN ONTARIO
TOWARDS NEWFOUNDLAND AND LABRADOR.
C. SURGE/WAVES.
FOR SOUTHEASTERN NEWFOUNDLAND, LARGE WAVES WILL ARRIVE AND BUILD
FROM THE SOUTHWEST LATE THIS EVENING, PEAKING EARLY SATURDAY WITH
BREAKING SIGNIFICANT WAVE HEIGHTS OF 5 TO 7 METRES FORECAST. THESE
WAVES COMBINED WITH THE POSSIBILITY OF STORM SURGE MAY CAUSE HIGHER
THAN NORMAL WATER LEVELS PARTICULARLY ALONG SOUTHWEST-FACING
SHORELINES IN THE BURIN AND AVALON PENINSULAS BEGINNING LATE
OVERNIGHT TONIGHT AND CONTINUING INTO SUNDAY MORNING.
3. MARINE WEATHER IMPACTS AND WARNINGS SUMMARY.
HURRICANE FORCE WIND WARNINGS ARE NOW IN EFFECT FOR THE SOUTHEASTERN
HALF OF LAURENTIAN FAN AND THE GRAND BANKS. STORM FORCE WIND
WARNINGS ARE IN EFFECT FOR EASTERN BANQUEREAU, NORTHWESTERN
LAURENTIAN FAN, EAST COAST - CAPE ST. FRANCIS AND SOUTH, AND FUNK
ISLAND BANK. OFFSHORE WATERS COULD SEE SIGNIFICANT WAVE HEIGHTS
REACH 10 METRES SOUTH OF MELISSA'S TRACK.
FORECASTER: FOGARTY
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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