947
WWCN15 CWWG 182255
SEVERE THUNDERSTORM WATCH
FOR SOUTHERN ALBERTA
UPDATED BY ENVIRONMENT CANADA
AT 4:55 P.M. MDT FRIDAY 18 JULY 2025.
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SEVERE THUNDERSTORM WATCH FOR:
CITY OF CALGARY
AIRDRIE - COCHRANE - OLDS - SUNDRE
DRUMHELLER - THREE HILLS
KANANASKIS - CANMORE
NORDEGG - FORESTRY TRUNK ROAD HIGHWAY 734
ROCKY MOUNTAIN HOUSE - CAROLINE.
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==DISCUSSION==
THUNDERSTORMS HAVE DEVELOPED ALONG THE FOOTHILLS. SOME OF THESE
THUNDERSTORMS HAVE THE POTENTIAL TO BE SEVERE BRINGING LARGE HAIL,
HEAVY RAIN AND STRONG WIND GUSTS.
FAST-MOVING AND RAPIDLY RISING WATER CAN SWEEP VEHICLES AWAY AND
DAMAGE INFRASTRUCTURE. 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.
HEAVY RAIN CAN CAUSE FLASH FLOODING AND SIGNIFICANT REDUCTIONS TO
VISIBILITY.
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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