WUCN11 CWTO 011226

SEVERE THUNDERSTORM WARNING

ISSUED BY ENVIRONMENT CANADA

AT 8:26 AM EDT THURSDAY 1 MAY 2003.

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SEVERE THUNDERSTORM WARNING FOR:

=NEW= ST CATHARINES - GRIMSBY - NORTHERN NIAGARA REGION.

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==DISCUSSION==

INTENSE THUNDERSTORM ACTIVITY IS MOVING EASTWARD THROUGH THE REGION.

RADAR INDICATES POTENTIAL 2 CENTIMETRE HAIL AND WIND GUSTS TO 90 KM/H

ASSOCIATED WITH THE STORMS.

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.

NOTE..A SUMMARY OF ALL WARNINGS AND WATCHES FOR SOUTHERN ONTARIO IS

AVAILABLE IN THE WWCN11 CWTO BULLETIN ISSUED IMMEDIATELY FOLLOWING

THIS BULLETIN.

END/TWN..