522
WUCN11 CWWG 210601
SEVERE THUNDERSTORM WARNING
FOR SOUTHERN MANITOBA
UPDATED BY ENVIRONMENT CANADA
AT 1:01 A.M. CDT THURSDAY 21 AUGUST 2025.
---------------------------------------------------------------------
SEVERE THUNDERSTORM WARNING FOR:
CITY OF WINNIPEG
R.M. OF RITCHOT INCL. ST. ADOLPHE AND STE. AGATHE
R.M. OF DE SALABERRY INCL. ST-PIERRE-JOLYS AND ST. MALO
R.M. OF ROSSER INCL. MEADOWS
PORTAGE LA PRAIRIE - HEADINGLEY - BRUNKILD - CARMAN
R.M. OF MORRIS INCL. ROSENORT AND AUBIGNY
MUN. OF NORTH NORFOLK INCL. MACGREGOR SIDNEY AND AUSTIN.
---------------------------------------------------------------------
==DISCUSSION==
UPDATED OR ENDED BY 2:59 A.M. CDT.
AT 1:00 A.M. CDT, ENVIRONMENT CANADA METEOROLOGISTS ARE TRACKING A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING VERY STRONG WIND GUSTS,
NICKEL TO PING PONG BALL SIZE HAIL AND HEAVY RAIN.
THIS QUASI-STATIONARY LINE OF SEVERE THUNDERSTORMS IS LOCATED FROM
SOUTHERN LAKE MANITOBA TO MORRIS. STORMS ARE MOVING SLOWLY RESULTING
IN WIDESPREAD HEAVY RAINFALL OVER PORTIONS OF THE WESTERN RED RIVER
VALLEY. THIS WILL CONTINUE FOR AT LEAST THE NEXT FEW HOURS WITH
FURTHER THUNDERSTORM DEVELOPMENT POSSIBLE BEFORE MORNING.
HAZARDS:
HEAVY RAIN (50 MM TO 75 MM).
QUARTER SIZE HAIL, WIND GUSTS OF 90 KM/H IN EMBEDDED STRONGER CELLS.
LOCATIONS IN THE PATH:
WESTERN RED RIVER VALLEY.
HEAVY RAIN MAY CAUSE FLASH FLOODING AND SIGNIFICANT REDUCTIONS TO
VISIBILITY. LARGE HAIL MAY CAUSE SIGNIFICANT DAMAGE AND INJURY. TAKE
IMMEDIATE COVER IF A THUNDERSTORM APPROACHES. IF OUTSIDE, PROTECT
YOURSELF FROM FLYING DEBRIS AND HAIL. DON'T DRIVE THROUGH FLOODED
ROADWAYS.
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES.
SEVERE THUNDERSTORM WARNINGS ARE ISSUED WHEN IMMINENT OR OCCURRING
THUNDERSTORMS ARE EXPECTED TO PRODUCE DAMAGING HAIL, WIND OR RAIN.
PLEASE CONTINUE TO MONITOR ALERTS AND FORECASTS ISSUED BY
ENVIRONMENT CANADA. TO REPORT SEVERE WEATHER, SEND AN EMAIL TO
MBSTORM(AT)EC.GC.CA, CALL 1-800-239-0484 OR POST REPORTS ON X USING
(HASH)MBSTORM.
HTTP://WEATHER.GC.CA
END/PASPC
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page