601
WUCN12 CWTO 200845
YELLOW WARNING - SEVERE THUNDERSTORM
FOR NORTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 4:45 A.M. EDT MONDAY 20 JULY 2026.
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YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:
=NEW= ATIKOKAN - UPSALA - QUETICO
IGNACE - ENGLISH RIVER
SEINE RIVER VILLAGE - MINE CENTRE.
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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH
==DISCUSSION==
UPDATED OR ENDED BY 5:44 A.M. CDT (5:44 A.M. EST, 6:44 A.M. EDT).
AT 3:45 A.M. CDT (3:45 A.M. EST, 4:45 A.M. EDT), ENVIRONMENT CANADA
METEOROLOGISTS ARE TRACKING A LINE OF SEVERE THUNDERSTORMS CAPABLE
OF PRODUCING DAMAGING WIND GUSTS, UP TO QUARTER SIZE HAIL AND HEAVY
RAIN.
THUNDERSTORM LOCATION: EXTENDING FROM MATTAWA LAKE TO DOVETAIL LAKE
MOTION: MOVING EAST AT 50 KM/H
HAZARDS:
WIND: DAMAGING (90 - 110 KM/H)
HAIL: UP TO QUARTER SIZE (UP TO 2.5 CM)
RAIN: HEAVY (15 - 50 MM)
LOCATIONS IN THE PATH:
DOVETAIL LAKE
GULLIVER LAKE
SELWYN LAKE
BISHOP LAKE
SCOTCH LAKE
STEEP ROCK LAKE
MARMION LAKE
WAWANG LAKE
WEAVER LAKE
PAKASHKAN LAKE
DAMAGE TO ROOFS, FENCES, SOFT SHELTERS OR TREES IS LIKELY. HEAVY
RAIN MAY CAUSE FLASH FLOODING AND SIGNIFICANT REDUCTIONS TO
VISIBILITY. THERE IS A RISK OF 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
THUNDERSTORM WARNINGS ARE ISSUED WHEN IMMINENT OR OCCURRING
THUNDERSTORMS ARE EXPECTED TO PRODUCE DAMAGING HAIL, WIND OR RAIN.
EMERGENCY MANAGEMENT ONTARIO RECOMMENDS THAT YOU TAKE COVER
IMMEDIATELY IF THREATENING WEATHER APPROACHES.
PLEASE CONTINUE TO MONITOR ALERTS AND FORECASTS ISSUED BY
ENVIRONMENT CANADA. TO REPORT SEVERE WEATHER, SEND AN EMAIL TO
ONSTORM(AT)EC.GC.CA OR POST REPORTS ON X USING (HASH)ONSTORM.
FOR MORE INFORMATION:
HTTPS://WWW.ONTARIO.CA/PAGE/BE-PREPARED-EMERGENCY.
HTTP://WEATHER.GC.CA
END/OSPC
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