253
WOCN12 CWTO 210934
YELLOW ADVISORY - FROST
FOR NORTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 5:34 A.M. EDT MONDAY 21 SEPTEMBER 2026.
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YELLOW LEVEL ADVISORY - FROST - FOR:
CITY OF THUNDER BAY
ATIKOKAN - UPSALA - QUETICO
SUPERIOR WEST
SIOUX LOOKOUT - SAVANT LAKE
NIPIGON - MARATHON - SUPERIOR NORTH
WAWA - WHITE RIVER - PUKASKWA
AGAWA - LAKE SUPERIOR PARK
KIRKLAND LAKE - TEMISKAMING SHORES - TEMAGAMI.
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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH
==DISCUSSION==
PATCHY FROST IS EXPECTED EARLY THIS MORNING AS TEMPERATURES FALL TO
NEAR THE FREEZING MARK.
THE FROST ADVISORY SEASON FOR THIS REGION WILL COME TO AN END TODAY,
BUT FROST MAY BE POSSIBLE AGAIN LATE TONIGHT INTO TUESDAY MORNING.
DAMAGE TO PLANTS, TREES, AND CROPS IS POSSIBLE. TAKE PREVENTATIVE
MEASURES TO PROTECT COLD-SENSITIVE PLANTS, TREES, AND CROPS.
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 SOCIAL MEDIA USING
(HASH)ONSTORM.
HTTP://WEATHER.GC.CA
END/OSPC
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