541  
WWCN15 CWWG 181646  
SEVERE THUNDERSTORM WATCH  
FOR SOUTHERN ALBERTA  
ISSUED BY ENVIRONMENT CANADA  
AT 10:46 A.M. MDT FRIDAY 18 JULY 2025.  
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SEVERE THUNDERSTORM WATCH FOR:  
=NEW= OKOTOKS - HIGH RIVER - CLARESHOLM  
=NEW= BROOKS - STRATHMORE - VULCAN  
=NEW= LETHBRIDGE - TABER - MILK RIVER  
=NEW= CARDSTON - FORT MACLEOD - MAGRATH  
=NEW= CROWSNEST PASS - PINCHER CREEK - WATERTON LAKES NAT. PARK.  
 
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==DISCUSSION==  
 
THUNDERSTORMS ARE FORECAST TO DEVELOP LATE THIS AFTERNOON OR  
EVENING. THESE THUNDERSTORMS HAVE THE POTENTIAL TO BECOME SEVERE  
BRINGING LARGE HAIL, STRONG WINDS AND HEAVY RAIN.  
 
REMEMBER SOME SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES.  
 
BE PREPARED FOR SEVERE WEATHER. IF THREATENING WEATHER APPROACHES,  
TAKE COVER IN A BASEMENT OR INTERIOR ROOM. IF OUTSIDE, PROTECT  
YOURSELF FROM FLYING DEBRIS AND HAIL. WHEN THUNDER ROARS, GO  
INDOORS(EXCLAMATION MARK) LIGHTNING KILLS AND INJURES CANADIANS  
EVERY YEAR.  
 
LARGE HAIL CAN CAUSE SIGNIFICANT DAMAGE AND INJURY.  
 
SEVERE THUNDERSTORM WATCHES ARE ISSUED WHEN CONDITIONS ARE  
FAVOURABLE FOR THE DEVELOPMENT OF THUNDERSTORMS CAPABLE OF PRODUCING  
DAMAGING HAIL, WIND OR RAIN.  
 
PLEASE CONTINUE TO MONITOR ALERTS AND FORECASTS ISSUED BY  
ENVIRONMENT CANADA. TO REPORT SEVERE WEATHER, SEND AN EMAIL TO  
ABSTORM(AT)EC.GC.CA, CALL 1-800-239-0484 OR POST REPORTS ON X USING  
(HASH)ABSTORM.  
 
HTTP://WEATHER.GC.CA  
 
END/PASPC  
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