WUCN15 CWWG 120202

YELLOW WARNING - SEVERE THUNDERSTORM

FOR SOUTHERN ALBERTA

UPDATED BY ENVIRONMENT CANADA

AT 8:02 P.M. MDT TUESDAY 11 AUGUST 2026.

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YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:

=NEW= KNEEHILL CO. NEAR CARBON

=NEW= WHEATLAND CO. NEAR ROCKYFORD AND ROSEBUD

      MOUNTAIN VIEW CO. NEAR CARSTAIRS AND STIRLINGVILLE

      KNEEHILL CO. NEAR ACME AND LINDEN

      ROCKY VIEW CO. NEAR IRRICANA BEISEKER AND KATHYRN.



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IMPACT LEVEL: MODERATE

FORECAST CONFIDENCE: HIGH



==DISCUSSION==



UPDATED OR ENDED BY 9:00 P.M. MDT.



AT 8:01 P.M. MDT, A SEVERE THUNDERSTORM IS LOCATED NEAR LINDEN. THIS 

SEVERE THUNDERSTORM IS MOVING SOUTHEAST AT 35 KM/H. DAMAGING WIND 

GUSTS, LOONIE TO PING PONG BALL SIZE HAIL AND HEAVY RAIN ARE 

POSSIBLE. 



LOCATIONS AND NEARBY AREAS THAT COULD BE IMPACTED INCLUDE: LINDEN, 

ACME, BIRCHAM, CARBON



TAKE IMMEDIATE COVER IF A THUNDERSTORM APPROACHES. IF OUTSIDE, 

PROTECT YOURSELF FROM FLYING DEBRIS AND HAIL. 



SEVERE THUNDERSTORM WARNINGS ARE ISSUED WHEN IMMINENT OR OCCURRING 

THUNDERSTORMS ARE EXPECTED TO PRODUCE DAMAGING HAIL, WIND OR RAIN. 



DRIVING CONDITIONS WILL LIKELY BE DIFFICULT. LARGE HAIL MAY CAUSE 

SIGNIFICANT DAMAGE AND INJURY. 



SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES. 



WHEN THUNDER ROARS, GO INDOORS(EXCLAMATION MARK) LIGHTNING KILLS AND 

INJURES CANADIANS EVERY YEAR. IF YOU HEAR ROARING WIND, SEE A FUNNEL 

CLOUD, FLYING DEBRIS, OR ANY THREATENING WEATHER APPROACHING, TAKE 

SHELTER IMMEDIATELY. 



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 SOCIAL 

MEDIA USING (HASH)ABSTORM.



HTTP://WEATHER.GC.CA



END/PASPC



WUCN15 CWWG 120202

YELLOW WARNING - SEVERE THUNDERSTORM

FOR SOUTHERN ALBERTA

UPDATED BY ENVIRONMENT CANADA

AT 8:02 P.M. MDT TUESDAY 11 AUGUST 2026.

---------------------------------------------------------------------

YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:

      MOUNTAIN VIEW CO. NEAR CREMONA AND WATER VALLEY

      MOUNTAIN VIEW CO. NEAR CARSTAIRS AND STIRLINGVILLE

      ROCKY VIEW CO. NEAR AIRDRIE AND CROSSFIELD.



YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - ENDED FOR:

      ROCKY VIEW CO. NEAR BOTTREL AND MADDEN.



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IMPACT LEVEL: MODERATE

FORECAST CONFIDENCE: HIGH



==DISCUSSION==



UPDATED OR ENDED BY 8:51 P.M. MDT.



AT 8:02 P.M. MDT, A SEVERE THUNDERSTORM IS LOCATED NEAR 

CARSTAIRS. THIS SEVERE THUNDERSTORM IS MOVING EAST AT 30 

KM/H. STRONG WIND GUSTS, UP TO QUARTER SIZE HAIL AND HEAVY RAIN ARE 

POSSIBLE. 



LOCATIONS AND NEARBY AREAS THAT COULD BE IMPACTED INCLUDE: 

CARSTAIRS, CROSSFIELD



TAKE IMMEDIATE COVER IF A THUNDERSTORM APPROACHES. IF OUTSIDE, 

PROTECT YOURSELF FROM FLYING DEBRIS AND HAIL. 



SEVERE THUNDERSTORM WARNINGS ARE ISSUED WHEN IMMINENT OR OCCURRING 

THUNDERSTORMS ARE EXPECTED TO PRODUCE DAMAGING HAIL, WIND OR RAIN. 



LARGE HAIL MAY CAUSE SIGNIFICANT DAMAGE AND INJURY. HEAVY RAIN MAY 

CAUSE FLASH FLOODING AND SIGNIFICANT REDUCTIONS TO VISIBILITY. 

DRIVING CONDITIONS WILL LIKELY BE DIFFICULT. WHEN THUNDER ROARS, GO 

INDOORS(EXCLAMATION MARK) LIGHTNING KILLS AND INJURES CANADIANS 

EVERY YEAR. 



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 SOCIAL 

MEDIA USING (HASH)ABSTORM.



HTTP://WEATHER.GC.CA



END/PASPC