137
AWCN15 CWWG 210516
WEATHER SUMMARY
FOR ALBERTA
ISSUED BY ENVIRONMENT CANADA
AT 11:16 P.M. MDT WEDNESDAY 20 AUGUST 2025.
DISCUSSION.
EARLY WEDNESDAY EVENING, A FAST-MOVING SUPERCELL TRACKED ACROSS
SOUTHERN ALBERTA BRINGING SIGNIFICANT, DAMAGING WIND GUSTS AND
LOONIE TO GOLF BALL SIZED HAIL.
THE WIND AND HAIL CAUSED DAMAGE TO PROPERTY AND TREES. THERE WERE
MULTIPLE POWER OUTAGES IN NEWELL AND VULCAN COUNTIES, AS PER FORTIS
ALBERTA. ACCORDING TO ALBERTA 511, HIGHWAY 1 WAS CLOSED BETWEEN
BROOKS AND BASSANO DUE TO MULTIPLE COLLISIONS AND DOWNED POWER
LINES. METAL POWER LINES FLATTENED, TREES AND POWER POLES SNAPPED
AND DAMAGE TO IRRIGATION PIVOTS WAS REPORTED NEAR BROOKS. THERE HAVE
BEEN NO TORNADO REPORTS FROM THIS SEVERE THUNDERSTORM AT THIS TIME.
BASED ON WIND DAMAGE REPORTS RECEIVED FROM THE PUBLIC, THE PEAK WIND
SPEED CAN BE RATED ON THE ENHANCED FUJITA SCALE. THIS WILL BE DONE
ONCE NORTHERN TORNADOES PROJECT (NTP)/NORTHERN HAIL PROJECT (NHP)
INVESTIGATES THIS EVENT.
SUMMARY OF PEAK WIND GUST MEASUREMENTS, IN KILOMETRES PER HOUR, AS
OF 10 P.M. MDT AUGUST 20:
ATLEE: 149
LATHOM: 127
BUFFALO: 121
BROOKS: 113
PATRICIA: 113
SOCIAL PLAINS: 99
TIDE LAKE: 92
ENVIRONMENT CANADA AND CLIMATE CHANGE METEOROLOGISTS ARE ACTIVELY
SEEKING PICTURES/REPORTS OF ANY DAMAGE THIS THUNDERSTORM MAY HAVE
CAUSED. SHOULD YOU HAVE ANY INFORMATION REGARDING THIS EVENT, OR TO
REPORT SEVERE WEATHER AT ANY TIME, PLEASE CALL 1-800-239-0484, EMAIL
STORM@EC.GC.CA, OR POST TO #ABSTORM
PLEASE NOTE THAT THIS SUMMARY MAY CONTAIN PRELIMINARY OR UNOFFICIAL
INFORMATION AND DOES NOT CONSTITUTE A COMPLETE OR FINAL REPORT.
END/PASPC
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