South Nation

A Flood Outlook Statement is being issued for areas along the St. Lawrence River shoreline in the South Nation Conservation (SNC) jurisdiction. According to the International Lake Ontario – St. Lawrence River Board, Lake Ontario’s water levels are above average for this time of year and are likely tocontinue increasing as a result of significant rainfall received this past week.

Environmental Conditions:

Weather Forecast: Environment Canada is forecasting rain amounts from 30 to 50 mm across the jurisdiction starting Saturday and continuing into next week. Thunderstorms may produce additional precipitation locally.

Environmental Conditions: Precipitation will increase water levels and flows in rivers at a time when levels are already elevated due to the spring freshet.

This FLOOD WARNING statement is an update to the Flood Watch issued for areas along the Lower Ottawa River (Arnprior to Hawkesbury) on
April 14^th, 2023.

Water levels are expected to continue rising within the Ottawa River Basin due to increased snowmelt associated with above normal snowpack and high temperatures over the weekend. 

This FLOOD WATCH statement is an update to the Flood Outlook Statement issued for areas along the Lower Ottawa River (Arnprior to Hawkesbury) on April 7^th, 2023.

Due to significant snow melt and forecasted rainfall anticipated on Sunday and Monday, water levels are expected to continue rising within the Ottawa River Basin.

This statement is an update to the Flood Watch Statement issued April 6^th, 2023.

Weather Forecast: No additional precipitation is forecasted in the next 3 days and temperatures are forecasted to remain high, with overnight temperatures above zero.

Environmental Conditions: Water levels and flows are highacross the jurisdiction due to significant precipitation received last week, combined with snow and ice melt associated with the spring freshet.

A Flood Outlook Statement is being issued for areas along the Lower Ottawa River (Arnprior to Hawkesbury).

Based on forecasted higher temperatures and anticipated snow melt, levels and flows along the Ottawa River are expected to increase over the next few days, marking the beginning of the spring freshet in the Ottawa River basin.

Snow cover varies significantly across the 146,300 km² Ottawa River basin, with several areas experiencing above average snow water content.

This statement is an update to the Flood Outlook Statement issued April 4^th, 2023.

Weather Forecast: No additional precipitation is forecasted in the next 3 days. Daytime temperatures will be above zero, with nighttime temperatures dropping below zero on Saturday and Sunday.