WWCN11 CWTO 180742
YELLOW WARNING - RAINFALL
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 3:42 A.M. EDT SATURDAY 18 APRIL 2026.
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YELLOW LEVEL WARNING - RAINFALL - FOR:
      PARRY SOUND - MUSKOKA
      HALIBURTON
      ALGONQUIN
      BURK'S FALLS - BAYFIELD INLET.

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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH

==DISCUSSION==

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

WHAT: 
RAINFALL AMOUNTS OF 20 TO 30 MM. 

WHEN: 
THIS MORNING THROUGH THIS AFTERNOON. 

ADDITIONAL INFORMATION: 
A COLD FRONT WILL SWEEP THROUGH THE REGION TODAY, BRINGING SHOWERS 
AND THE RISK OF A THUNDERSTORM. PORTIONS OF THE REGION HAVE RECEIVED 
SIGNIFICANT RAINFALL AMOUNTS OVER THE LAST FEW DAYS. AS A RESULT, 
FURTHER RAINFALL COULD HAVE SIGNIFICANT IMPACTS. 

LOCALIZED FLOODING IS LIKELY. SOME ROADS MAY BECOME IMPASSABLE.

DON'T DRIVE THROUGH FLOODED ROADWAYS. AVOID LOW-LYING AREAS. WATCH 
FOR WASHOUTS NEAR RIVERS, CREEKS AND CULVERTS. 

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