WWCN11 CWTO 161334
YELLOW WARNING - RAINFALL
FOR SOUTHERN ONTARIO
ISSUED BY ENVIRONMENT CANADA
AT 9:34 A.M. EDT THURSDAY 16 APRIL 2026.
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YELLOW LEVEL WARNING - RAINFALL - FOR:
=NEW= SARNIA - LAMBTON
=NEW= LONDON - MIDDLESEX
=NEW= WOODSTOCK - TILLSONBURG - OXFORD COUNTY
=NEW= GODERICH - BLUEWATER - SOUTHERN HURON COUNTY
=NEW= STRATFORD - MITCHELL - SOUTHERN PERTH COUNTY.

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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH

==DISCUSSION==

RAIN, AT TIMES HEAVY, CONTINUES. THE GROUND, ALREADY NEAR
SATURATION, HAS LITTLE ABILITY TO ABSORB FURTHER RAINFALL.

WHAT:
ADDITIONAL RAINFALL AMOUNTS OF 20 TO 40 MM.

WHEN:
ENDING THIS EVENING.

ADDITIONAL INFORMATION:
SEVERAL ROUNDS OF SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY.
PORTIONS OF THE REGION HAVE RECEIVED SIGNIFICANT RAINFALL AMOUNTS
OVER THE LAST FEW DAYS. AS A RESULT, FURTHER RAINFALL COULD HAVE
SIGNIFICANT IMPACTS.

WATER WILL LIKELY POOL ON ROADS AND IN LOW-LYING AREAS. DON'T DRIVE
THROUGH FLOODED ROADWAYS. AVOID LOW-LYING AREAS.

FOR INFORMATION CONCERNING FLOODING, PLEASE CONSULT YOUR LOCAL
CONSERVATION AUTHORITY OR ONTARIO MINISTRY OF NATURAL RESOURCES
OFFICE. VISIT HTTPS://WWW.ONTARIO.CA/PAGE/FLOODS FOR THE LATEST
DETAILS.

PLEASE CONTINUE TO MONITOR ALERTS AND FORECASTS ISSUED BY
ENVIRONMENT CANADA.

TO REPORT SEVERE WEATHER IN ONTARIO, SEND AN EMAIL TO
ONSTORM(AT)EC.GC.CA OR POST REPORTS ON X USING (HASH)ONSTORM.

HTTP://WEATHER.GC.CA

END/OSPC