News

MNR issues Flood Warning for South River & Mattawa River watersheds

Tuesday, April 15, 2014   by: Kate Adams

MNR News Release

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The Ministry of Natural Resources - North Bay District is advising area residents that a Watershed Conditions Statement - Flood Outlook is in effect for North Bay District.

Residents in North Bay District should keep a close watch on conditions, regularly check for updated messages and stay away from fast-moving rivers and streams.

A Flood Warning has been issued for the South River, Pickerel River and Mattawa River Watersheds.

MNR is closely monitoring the weather and developing watershed conditions. Further updates will be issued as appropriate.

TECHNICAL INFORMATION

Description of Weather System

Widespread precipitation is currently predicted for today with 20-30mm forecast in a large swath across south-central, central and the south end of the northeastern Ontario.

The system is forecast to move out by Tuesday bringing clear skies and cooler temperatures with daytime highs around -5°C to 0°C in south-central Ontario.

A total two day accumulation of 50-75mm is possible for the forecast area described above.

Precipitation will primarily fall as rain but southern sections of the northeast may receive a mix of rain, freezing rain and snow.

Description of Current Conditions

The depth of the snowpack in the more northerly section of the district continues to be above normal for this time of year with above average water content.

Forecasted temperatures and rainfall will continue to melt the snow pack but flooding is not expected at this time.

It is expected that the intact snow pack will have retained much of the recent rainfall and coupled with falling temperatures will moderate the amount of snow melt and runoff into local water bodies over the next few days, however levels on local lakes, streams and watercourses are expected to rise.

With more seasonal daytime and nighttime temperatures forecasted to return by the weekend, it is expected that the snowpack will continue to melt at a moderate rate therefore reducing the potential for flooding.
 

Levels of Statements and Watches:

WATERSHED CONDITIONS STATEMENT - FLOOD OUTLOOK: gives early notice of the potential for flooding based on weather forecasts calling for heavy rain, snow melt, high winds or other conditions
 

WATERSHED CONDITIONS STATEMENT – WATER SAFETY: indicates that high flows, melting ice or other factors could be dangerous for such users as boaters, anglers and swimmers but flooding is not expected.
 

FLOOD WATCH: potential for flooding exists within specific watercourses and municipalities
 

FLOOD WARNING: flooding is imminent or occurring within specific watercourses and municipalities.
Contact Information

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