WUCN16 CWWG 181758

YELLOW WARNING - SEVERE THUNDERSTORM

FOR NORTHERN ALBERTA

UPDATED BY ENVIRONMENT CANADA

AT 11:58 A.M. MDT SATURDAY 18 JULY 2026.

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YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:

=NEW= LAC LA BICHE CO. NEAR WIAU WINEFRED AND GRIST LAKES

      LAC LA BICHE CO. NEAR HEART LAKE.



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IMPACT LEVEL: MODERATE

FORECAST CONFIDENCE: HIGH



==DISCUSSION==



UPDATED OR ENDED BY 1:56 P.M. MDT.



AT 11:57 A.M. MDT, ENVIRONMENT CANADA METEOROLOGISTS ARE TRACKING A 

LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING STRONG WIND GUSTS, 

UP TO QUARTER SIZE HAIL AND HEAVY RAIN.



THIS SEVERE THUNDERSTORM IS LOCATED NEAR WIAU LAKE AND IS MOVING 

TOWARDS THE NORTHEAST AT 30 KM/H.



HEAVY RAIN MAY CAUSE FLASH FLOODING AND SIGNIFICANT REDUCTIONS TO 

VISIBILITY. LARGE HAIL MAY CAUSE SIGNIFICANT DAMAGE AND INJURY. TAKE 

IMMEDIATE COVER IF A THUNDERSTORM APPROACHES. IF OUTSIDE, PROTECT 

YOURSELF FROM FLYING DEBRIS AND HAIL. WHEN THUNDER ROARS, GO 

INDOORS(EXCLAMATION MARK) LIGHTNING KILLS AND INJURES CANADIANS 

EVERY YEAR. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES. SEVERE 

THUNDERSTORM WARNINGS ARE ISSUED WHEN IMMINENT OR OCCURRING 

THUNDERSTORMS ARE EXPECTED TO PRODUCE 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