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View Full Version : Jun.23, 2010 - SPECIAL WEATHER STATEMENT


DarkSky
06-23-2010, 12:40 PM
162
WOCN11 CWTO 231458
SPECIAL WEATHER STATEMENT
ISSUED BY ENVIRONMENT CANADA ONTARIO REGION. 10:58 AM EDT WEDNESDAY
23 JUNE 2010.

SPECIAL WEATHER STATEMENT ISSUED FOR..
CITY OF TORONTO
WINDSOR - ESSEX - CHATHAM-KENT
SARNIA - LAMBTON
ELGIN
LONDON - MIDDLESEX
SIMCOE - DELHI - NORFOLK
DUNNVILLE - CALEDONIA - HALDIMAND
OXFORD - BRANT
NIAGARA
CITY OF HAMILTON
HALTON - PEEL
YORK - DURHAM
HURON - PERTH
WATERLOO - WELLINGTON
DUFFERIN - INNISFIL
GREY - BRUCE
BARRIE - ORILLIA - MIDLAND
PARRY SOUND - MUSKOKA
HALIBURTON
RENFREW - PEMBROKE - BARRY'S BAY
ALGONQUIN
BURK'S FALLS - BAYFIELD INLET.

..SEVERE THUNDERSTORMS POSSIBLE IN SOUTHWESTERN ONTARIO BEGINNING
THIS AFTERNOON..

A COMBINATION OF A WARM..HUMID..AND VERY UNSTABLE AIRMASS AND A
DISTURBANCE APPROACHING SOUTHERN ONTARIO MAY RESULT IN STRONG TO
SEVERE THUNDERSTORMS ACROSS A LARGE PART OF SOUTHWESTERN ONTARIO
LATER THIS AFTERNOON INTO THIS EVENING. A SEVERE THUNDERSTORM WATCH
HAS ALREADY BEEN ISSUED FOR EXTREME SOUTHWESTERN ONTARIO INCLUDING
WINDSOR AND SARNIA. THE MAIN SEVERE THREATS WILL BE DAMAGING WINDS
AND HEAVY RAINFALL AMOUNTS IN EXCESS OF 50 MM.

..HEAVY RAIN MOVING IN TONIGHT FOR REGIONS FROM EAST OF GEORGIAN BAY
TO THE UPPER OTTAWA VALLEY..

THE VERY MOIST AIRMASS COUPLED WITH AN INTENSIFYING LOW PRESSURE
SYSTEM WILL PRODUCE LOCALLY HEAVY RAINFALL AMOUNTS OVER REGIONS FROM
FROM EAST OF GEORGIAN BAY TO THE UPPER OTTAWA VALLEY. THE HEAVY RAIN
WILL BEGIN NEAR GEORGIAN BAY EARLY THIS EVENING AND SPREAD EASTWARD
THEREAFTER. FOR MANY LOCATIONS 20 TO 30 MM OF RAIN ARE LIKELY WITH
LOCAL AMOUNTS UP TO 50 MM POSSIBLE WHERE ISOLATED THUNDERSTORMS
AUGMENT THE RAINFALL TOTALS.

..HUMIDEX VALUES APPROACHING UPPER THIRTIES THIS AFTERNOON..

A WARM AND HUMID AIRMASS WILL PRODUCE HUMIDEX VALUES IN THE 35 TO 39
DEGREE RANGE ACROSS MANY PORTIONS OF SOUTHERN ONTARIO TODAY. HOWEVER
THESE HUMIDEX VALUES REMAIN JUST BELOW THE ADVISORY THRESHOLD OF 40.
COOLER AND DRIER AIR RETURNS FOR THURSDAY.

END/OSPC

Derecho
06-23-2010, 12:43 PM
Not as exciting as this mornings SWS about the potential for tornadoes today. They removed tornado and replaced it with heavy rains in the updated statement.

Ay-yaye-yaye.