902
AWCN16 CWHX 051715
WEATHER SUMMARY
FOR NEWFOUNDLAND
ISSUED BY ENVIRONMENT CANADA
AT 1:45 P.M. NST WEDNESDAY 5 NOVEMBER 2025.
DISCUSSION.
AN AREA OF LOW PRESSURE DEVELOPED OFF THE COAST OF CAPE HATTERAS ON
MONDAY AND RAPIDLY INTENSIFIED AS IT TRACKED SOUTH OF NOVA SCOTIA ON
TUESDAY. METEOROLOGICALLY, THE SYSTEM UNDERWENT 'EXPLOSIVE
CYCLOGENESIS', ALSO KNOWN AS 'BOMBOGENESIS', WITH ITS MINIMUM
CENTRAL PRESSURE DROPPING 60 MILLIBARS IN 24 HOURS - 2.5 TIMES
HIGHER THAN THE CRITERIA OF 24 MILLIBARS IN 24 HOURS.
THE LOWEST MEAN SEA LEVEL PRESSURE (MSLP) RECORDED ON LAND FROM THIS
SYSTEM WAS 944.7 MB AT MARTICOT ISLAND AS THE LOW CROSSED PLACENTIA
BAY. THIS PRELIMINARILY SETS A NEW RECORD FOR THE LOWEST MSLP IN
NEWFOUNDLAND AND LABRADOR DURING THE MONTH OF NOVEMBER, SURPASSING
THE PREVIOUS RECORD OF 950.7 MB SET IN NAIN ON NOVEMBER 7, 1987
(RECORDS SINCE 1984). AT ST. JOHN'S INTERNATIONAL AIRPORT, THE
LOWEST MSLP WAS MEASURED AT 950.5 MB, WHICH SHATTERS THE PREVIOUS
NOVEMBER RECORD OF 963.1 MB SET ON NOVEMBER 30, 2019 (RECORDS SINCE
1959).
THE STORM'S MAIN IMPACTS WERE ASSOCIATED WITH VERY STRONG WINDS AND
COASTAL FLOODING. LARGE WAVES BROKE OVER ROADWAYS AND DEPOSITED
DEBRIS, HIGH WATER LEVELS CAUSED FLOODING OF LOW-LYING AREAS AND
INFRASTRUCTURE NEAR THE COAST, AND NUMEROUS POWER AND COMMUNICATION
OUTAGES OCCURRED ISLAND-WIDE.
PRECIPITATION AMOUNTS WERE MODEST, CONSISTING OF PRIMARILY RAIN IN
THE EAST AND A MIXTURE OF RAIN AND WET SNOW THROUGH CENTRAL,
WESTERN, AND NORTHERN AREAS. SNOWFALL AMOUNTS DERIVED USING
SNOW-ON-GROUND SENSORS FROM AUTOMATED WEATHER STATIONS GENERALLY
RANGED FROM 2 TO 7 CM. DIFFICULT DRIVING CONDITIONS WERE REPORTED
DURING THE LATE AFTERNOON AND EARLY EVENING HOURS, PARTICULARLY IN
CENTRAL AND WESTERN NEWFOUNDLAND, DURING THE HEAVIEST SNOWFALL.
THE FOLLOWING IS A SUMMARY OF WEATHER EVENT INFORMATION RECEIVED BY
ENVIRONMENT AND CLIMATE CHANGE CANADA AS OF 1:00 P.M. NST.
1. MAXIMUM WIND GUSTS IN KILOMETRES PER HOUR.
CAPE ST. MARY'S: 172 *
TREPASSEY (POWLES HEAD): 171 *
CAPE RACE: 162 ^
CAPE PINE: 156 *
SAGONA ISLAND: 155
MUSGRAVE HARBOUR: 136 *
CALVERT: 135 *
SAINT-PIERRE AIRPORT (FRANCE): 126
FORT POINT (TRINITY BAY): 119 *
TWILLINGATE: 119
LAMALINE: 116 *
BONAVISTA: 112 ^
BURGEO: 112
ST. LAWRENCE: 110
ST. JOHN'S INT'L AIRPORT: 109
CAPLIN COVE: 108 *
POOL'S ISLAND: 106
ST. JOHN'S (ROBIN HOOD BAY): 105 *
BLACKHEAD (CONCEPTION BAY NORTH): 103 *
ST. JOHN'S (EAST WHITE HILLS): 103 *
MARTICOT ISLAND: 102
GRATES COVE: 100
PORT AUX BASQUES: 99
ARGENTIA: 97
ST. JOHN'S WEST: 91
GANDER INT'L AIRPORT: 90
* DENOTES DATA FROM UNOFFICIAL REPORTING STATIONS.
^ SUBJECT TO REVIEW BY QUALITY ASSURANCE.
IT SHOULD ALSO BE NOTED THAT SEVERAL STATIONS STOPPED REPORTING ON
TUESDAY EVENING AFTER REPORTING THEIR PEAK GUSTS, LIKELY DUE TO
POWER OR COMMUNICATION FAILURES.
2. RAINFALL IN MILLIMETRES.
BURIN BAY ARM: 57.0 *
LAMALINE: 54.5 *
WINTERLAND (BRANCH HILL): 51.4
ST. LAWRENCE: 44.3
* DENOTES DATA FROM UNOFFICIAL REPORTING STATIONS.
PLEASE NOTE THAT THIS SUMMARY MAY CONTAIN PRELIMINARY OR UNOFFICIAL
INFORMATION AND DOES NOT CONSTITUTE A COMPLETE OR FINAL REPORT.
END/NLWO
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