285
WWCN18 CWVR 201141
SEVERE THUNDERSTORM WATCH
FOR THE B.C. TRAVELLERS ROUTES
ISSUED BY ENVIRONMENT CANADA
AT 4:41 A.M. PDT FRIDAY 20 JUNE 2025.
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SEVERE THUNDERSTORM WATCH FOR:
=NEW= COQUIHALLA HIGHWAY - MERRITT TO KAMLOOPS.
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==DISCUSSION==
CONDITIONS ARE FAVOURABLE FOR THE DEVELOPMENT OF SEVERE
THUNDERSTORMS THAT MAY BE CAPABLE OF PRODUCING HEAVY RAIN.
ADDITIONAL INFORMATION: AN UPPER DISTURBANCE WILL SETTLE OVER
SOUTHERN BRITISH COLUMBIA WHERE WIDESPREAD SHOWERS AND STRONG
THUNDERSTORMS ARE EXPECTED TO PRODUCE HEAVY PRECIPITATION THIS
AFTERNOON AND EVENING.
BECAUSE OF THE CONVECTIVE NATURE OF THE SYSTEM, SHOWERS WILL BE
WIDESPREAD, AND AREAS WHERE THUNDERSTORMS DEVELOP WILL ONLY FURTHER
ENHANCE PRECIPITATION RATES. ONCE THE THUNDERSTORM THREAT DIMINISHES
THIS EVENING, MODERATE RAINFALL WILL PERSIST TONIGHT AND INTO
SATURDAY, WITH LOCAL AMOUNTS UP TO 25 MM.
SUDDEN HEAVY DOWNPOURS AND HEAVY RAINFALL RATES MAY CAUSE LOCALIZED
FLOODING/WATER POOLING, AND LANDSLIDES OR DEBRIS FLOWS FROM
VULNERABLE LANDSCAPES (E.G. BURN SCARS).
WHEN THUNDER ROARS, GO INDOORS(EXCLAMATION MARK) LIGHTNING KILLS AND
INJURES CANADIANS EVERY YEAR. DON'T DRIVE THROUGH FLOODED ROADWAYS.
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.
WEATHER IN THE MOUNTAINS CAN CHANGE SUDDENLY RESULTING IN HAZARDOUS
DRIVING CONDITIONS.
ROAD CONDITIONS ARE AVAILABLE AT HTTPS://WWW.DRIVEBC.CA/.
PLEASE CONTINUE TO MONITOR ALERTS AND FORECASTS ISSUED BY
ENVIRONMENT CANADA. TO REPORT SEVERE WEATHER, SEND AN EMAIL TO
BCSTORM(AT)EC.GC.CA OR POST REPORTS ON X USING (HASH)BCSTORM.
HTTP://WEATHER.GC.CA
END/PSPC
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