WUCN16 CWWG 190441

YELLOW WARNING - SEVERE THUNDERSTORM

FOR NORTHERN ALBERTA

UPDATED BY ENVIRONMENT CANADA

AT 10:41 P.M. MDT SATURDAY 18 JULY 2026.

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YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:

=NEW= ATHABASCA CO. NEAR ROCHESTER COLINTON AND MEANOOK

=NEW= ATHABASCA CO. NEAR GRASSLAND AND ATMORE

=NEW= ATHABASCA CO. NEAR BOYLE AND CASLAN

      ATHABASCA CO. NEAR ATHABASCA AND ISLAND LAKE.



YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - ENDED FOR:

      M.D. OF OPPORTUNITY NEAR CALLING AND ROCK ISLAND LAKES.



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IMPACT LEVEL: MODERATE

FORECAST CONFIDENCE: HIGH



==DISCUSSION==



UPDATED OR ENDED BY 12:39 A.M. MDT.



AT 10:40 P.M. MDT, ENVIRONMENT CANADA METEOROLOGISTS ARE TRACKING AN 

AREA OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WIND 

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



THIS AREA OF SEVERE THUNDERSTORMS IS LOCATED FROM ATHABASCA TO SOUTH 

OF CALLING LAKE AND IS MOVING EAST AT 20 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