Rainfall And Flood Warnings For Our Listening Area

Rainfall warning in effect for areas including:

Guelph – Erin – Southern Wellington County

Kitchener – Cambridge – Region of Waterloo

Mount Forest – Arthur – Northern Wellington County

Woodstock – Tillsonburg – Oxford County

 

Rain, heavy at times continues. The frozen ground has a reduced ability to absorb this rainfall.

Major rainfall event continues until Wednesday morning.

Several rounds of rain will continue today and tonight. Total rainfall amounts from Monday night through Wednesday will be in the 50 to 75 mm range.

This wet, record mild spell is attributed to a series of low pressure systems moving along a warm front draped across the lower Great Lakes. A cold front will arrive Wednesday, bringing an end to the rain.

Localized flooding in low-lying areas is possible. If visibility is reduced while driving, slow down, watch for tail lights ahead and be prepared to stop.

Rainfall warnings are issued when significant rainfall is expected.

Special weather statement in effect for:

  • City of Hamilton

Significant rainfall into Wednesday.

Several rounds of rain will continue today and tonight. Rainfall amounts of 5 to 10 mm are possible today and again Wednesday.

This is below Environment Canada’s criterion for rainfall warning of 25 mm in 24 hours when the ground is frozen.

However, this rainfall along with snowmelt due to very mild temperatures is resulting in ponding of water in poorly drained areas.

This wet, record mild spell is attributed to a series of low pressure systems moving along a warm front draped across the lower Great Lakes. A final band of rain is likely along a cold front Wednesday, bringing the rain to an end. However, multi-day rainfall totals in the 20 to 30 mm range are likely.

Source Environment Canada

Flood Warnings for a good part of the Jewel listening area.

February 20, 2018 @ 1:30 p.m.

Release on receipt

 

Flood Message #3 – Flood Warning updated for entire Grand River watershed

A warm front accompanied by heavy rainfall moved into the Grand River watershed on Monday evening, and will persist through Wednesday. Temperatures associated with this weather system are forecast to reach 13 degrees late Tuesday afternoon and remain elevated overnight before declining rapidly through the day Wednesday. Rainfall totals of 20-30 mm have been received across the watershed over the last 24 hours, with an additional 20-25 mm forecast for the next 24 hours. The combination of warm temperatures and rainfall is beginning to trigger significant runoff into the river system.

 

These current weather conditions are melting the remaining snowpack across the watershed and resulting in very high flows in rivers and streams across the watershed. This will result in flows similar to those experienced during normal spring flooding.  Ice jams currently in place in the Grand River through the City of Cambridge, City of Brantford and community of Cayuga have a high potential of causing additional flooding. A small ice jam is also in place downstream of the community of Plattsville on the Nith River. Ice jams in these areas have begun to show signs of erosion and it is anticipated that they will release during this event. Ice jams can form and release without warning and extreme caution should be used in areas where they are occurring.

Source GRCA

Weather Alert graphic Environment Canada

Posted in All Stories, Annoucer Blogs, Dave Creelman, News & Sports Tagged with: , , , ,

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