WWCN11 CWTO 292003
YELLOW WARNING - RAINFALL
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 4:03 P.M. EDT WEDNESDAY 29 APRIL 2026.
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YELLOW LEVEL WARNING - RAINFALL - FOR:
      KINGSTON - PRINCE EDWARD
      TAMWORTH - SYDENHAM - SOUTH FRONTENAC
      BROCKVILLE - LEEDS AND GRENVILLE
      CITY OF OTTAWA
      PRESCOTT AND RUSSELL
      CORNWALL - MORRISBURG
      SMITHS FALLS - LANARK - SHARBOT LAKE.

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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH

==DISCUSSION==

HEAVY RAIN IS EXPECTED TONIGHT. THE GROUND, WHICH IS ALREADY NEARLY 
SATURATED, WILL HAVE A REDUCED ABILITY TO ABSORB MORE RAIN. 

WHAT: 
RAINFALL TOTALS OF 20 TO 40 MM AND LOCALLY UP TO 50 MM. 

WHEN: 
TONIGHT. 

ADDITIONAL INFORMATION: 
A LOW PRESSURE SYSTEM WILL BRING WIDESPREAD HEAVY RAIN OVER THE NEXT 
FEW HOURS.

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