August 21st,
2003 - Largest storm so far this season
Click thumbnails below for radar and
satellite photos :
Below are radar and satellite loops showing
the storm exploding as it hits the S.Ontario humid airmass :
WWCN11 CWTO 220512
SEVERE WEATHER BULLETIN
ISSUED BY ENVIRONMENT CANADA
AT 1:12 AM EDT FRIDAY 22 AUGUST 2003.
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WATCHES/WARNINGS IN EFFECT FOR SOUTHERN ONTARIO...
SEVERE THUNDERSTORM WARNING FOR:
=NEW= NIAGARA FALLS - WELLAND - SOUTHERN NIAGARA
REGION
=NEW= ST CATHARINES - GRIMSBY - NORTHERN NIAGARA
REGION.
AT 1:00 AM EDT INTENSE LARGE HAIL WAS
REPORTED IN NIAGARA
REGION. THE THUNDERSTORMS WHICH PRODUCE THAT
HAIL ARE STILL IN
THE AREA AND WILL MOVE SOUTH OF THE CANADIAN
BORDER BY 1:30 AM.
THIS IS A WARNING THAT SEVERE THUNDERSTORMS
ARE IMMINENT OR
OCCURRING IN THESE REGIONS. REMEMBER SOME
SEVERE THUNDERSTORMS
PRODUCE TORNADOES..LISTEN FOR UPDATED
WARNINGS. EMERGENCY
MEASURES ONTARIO RECOMMENDS TAKING COVER
IMMEDIATELY WHEN
THREATENING WEATHER APPROACHES.
SEVERE THUNDERSTORM WATCH FOR:
NIAGARA.
RISK OF A SEVERE THUNDERSTORM FOR THE NEXT
TWO HOURS.
THIS IS AN ALERT TO THE POTENTIAL
DEVELOPMENT OF SEVERE
THUNDERSTORMS WITH LARGE HAIL AND DAMAGING
WINDS.
MONITOR WEATHER CONDITIONS..LISTEN FOR
UPDATED STATEMENTS.
IF THREATENING WEATHER APPROACHES TAKE
IMMEDIATE SAFETY
PRECAUTIONS.
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==DISCUSSION==
THUNDERSTORMS HAVE DEVELOPED AHEAD OF A COLD FRONT
TRACKING SOUTHERN
ONTARIO. ALTHOUGH THE THUNDERSTORMS ARE
WEAKENING. THERE IS STILL A
RISK OF SEVERE THUNDERSTORM OVER THE NIAGARA
REGION FOR THE NEXT TWO
HOURS.
PLEASE REFER TO THE LATEST PUBLIC FORECASTS FOR
FURTHER DETAILS.
END/ER/LEE
