204  
WWCN15 CWWG 230119  
SEVERE THUNDERSTORM WATCH  
FOR SOUTHERN ALBERTA  
UPDATED BY ENVIRONMENT CANADA  
AT 7:19 P.M. MDT FRIDAY 22 JUNE 2018.  
---------------------------------------------------------------------  
SEVERE THUNDERSTORM WATCH FOR:  
AIRDRIE - COCHRANE - OLDS - SUNDRE  
DRUMHELLER - THREE HILLS  
RED DEER - PONOKA - INNISFAIL - STETTLER  
HANNA - CORONATION - OYEN  
MEDICINE HAT - BOW ISLAND - SUFFIELD.  
 
SEVERE THUNDERSTORM WATCH ENDED FOR:  
CITY OF CALGARY  
OKOTOKS - HIGH RIVER - CLARESHOLM  
BROOKS - STRATHMORE - VULCAN.  
 
---------------------------------------------------------------------  
==DISCUSSION==  
 
CONDITIONS ARE FAVOURABLE FOR THE DEVELOPMENT OF DANGEROUS  
THUNDERSTORMS THAT MAY BE CAPABLE OF PRODUCING STRONG WIND GUSTS,  
LARGE HAIL AND TORRENTIAL RAIN.  
 
THUNDERSTORMS CONTINUE OVER NORTHERN, CENTRAL AND SOUTHERN ALBERTA  
THIS AFTERNOON AND WILL CONTINUE INTO THE EVENING HOURS. THESE  
THUNDERSTORMS WILL BE SLOW MOVING WITH THE MAIN THREAT BEING  
LOCALIZED ACCUMULATIONS OF 50 MM OF RAIN IN ONE HOUR OR LESS.  
MARGINALLY SEVERE HAIL AND STRONG WIND GUSTS ARE ALSO POSSIBLE WITH  
THESE STORMS.  
 
FAST-MOVING WATER ACROSS A ROAD CAN SWEEP A VEHICLE AWAY. STRONG  
WIND GUSTS CAN TOSS LOOSE OBJECTS, DAMAGE WEAK BUILDINGS, BREAK  
BRANCHES OFF TREES AND OVERTURN LARGE VEHICLES. REMEMBER, SEVERE  
THUNDERSTORMS CAN PRODUCE TORNADOES. HEAVY DOWNPOURS CAN CAUSE FLASH  
FLOODS AND WATER POOLING ON ROADS. LIGHTNING KILLS AND INJURES  
CANADIANS EVERY YEAR. REMEMBER, WHEN THUNDER ROARS, GO  
INDOORS(EXCLAMATION MARK)  
 
SEVERE THUNDERSTORM WATCHES ARE ISSUED WHEN ATMOSPHERIC CONDITIONS  
ARE FAVOURABLE FOR THE DEVELOPMENT OF THUNDERSTORMS THAT COULD  
PRODUCE ONE OR MORE OF THE FOLLOWING: LARGE HAIL, DAMAGING WINDS,  
TORRENTIAL RAINFALL.  
 
PLEASE CONTINUE TO MONITOR ALERTS AND FORECASTS ISSUED BY  
ENVIRONMENT CANADA. TO REPORT SEVERE WEATHER, SEND AN EMAIL TO  
ABSTORM(AT)CANADA.CA OR TWEET REPORTS USING (HASH)ABSTORM.  
 
HTTP://WEATHER.GC.CA  
 
END/PASPC  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab CANADA Page Main Text Page