757
WUCN12 CWTO 200412
YELLOW WARNING - SEVERE THUNDERSTORM
FOR NORTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 12:12 A.M. EDT MONDAY 20 JULY 2026.
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YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:
CITY OF THUNDER BAY
CLOUD BAY - DORION.
ORANGE LEVEL WARNING - SEVERE THUNDERSTORM - ENDED FOR:
UPSALA - RAITH
KAKABEKA FALLS - WHITEFISH LAKE - ARROW LAKE.
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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH
==DISCUSSION==
UPDATED OR ENDED BY 1:11 A.M. EST (2:11 A.M. EDT).
AT 11:12 P.M. EST (12:12 A.M. EDT), ENVIRONMENT CANADA
METEOROLOGISTS ARE TRACKING AN AREA OF SEVERE THUNDERSTORMS CAPABLE
OF PRODUCING DAMAGING WIND GUSTS, UP TO QUARTER SIZE HAIL AND HEAVY
RAIN.
THUNDERSTORM LOCATION: OVER ONION LAKE
MOTION: MOVING SOUTHEAST 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:
LAPPE
ONION LAKE
GREENWICH LAKE
THUNDER BAY
SLEEPING GIANT PROVINCIAL PARK
DRIVING CONDITIONS WILL LIKELY BE DIFFICULT. 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
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