Addendum: Freezing rain warnings continue for:

UPDATE – 5:10 AM EST 2012-01-13

Brockville – Leeds and Grenville
SmithsFalls – Lanrk -Sharbot Lake
City of Ottawa
Prescott and Russell
Cornwall- Morrisburg

Patchy freezing rain continues this morning.

Periods of freezing rain will continue over Eastern Ontario as a low pressure area tracks east across the district and becomes absorbed in a new low pressure system forecast to track northeast across New York state into Southeastern Quebec later today. Hence the freezing rain, freezing drizzle and ice pellets will change over to all snow by this afternoon with a general snowfall of 5-10 cm expected, except in the St Lawrence Valley where snowfall amounts of 10 to possibly 15 cm are expected by this evening.

The snow will end tonight as the low pressure system moves away to the northeast.

Ice will continue to accumulate on untreated surfaces. Travellers are advised to exercise extreme caution as due to hazardous travelling conditions from icy and slippery surfaces, which may also become snow covered this afternoon.

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Special weather statement
Updated by Environment Canada
At 6:26 AM EST Friday 13 January 2012.
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Special weather statement for:
=new= City of Toronto
=new= Windsor – Essex – Chatham-Kent
=new= Sarnia – Lambton
=new= Elgin
=new= Oxford – Brant
=new= City of Hamilton
=new= Halton – Peel
=new= York – Durham
=new= Waterloo – Wellington
=new= Dufferin – Innisfil
=new= Belleville – Quinte – Northumberland
=new= Kingston – Prince Edward
London – Middlesex
Simcoe – Delhi – Norfolk
Dunnville – Caledonia – Haldimand
Niagara
Huron – Perth
Grey – Bruce
Barrie – Orillia – Midland.

A sudden return to winter.

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==discussion==
Much colder Arctic air blasting into the regions in the wake of a low pressure area moving into Southeastern Quebec will generate lake effect flurries today and tonight. A very strong southwesterly flow is bringing flurries heavy at times off of Lake Erie into the Niagara Peninsula and into regions near the shore of Lake Erie as far west as
the Long Point area. A quick 2 to 5 cm of snow is expected by this afternoon with locally higher amounts of 5 to 10 cm especially in the Fort Erie area. As the winds become more westerly this afternoon the lake effect snow will drift southeast of the area.

Meanwhile as winds become more northwesterly off of Lake Huron and Southern Georgian Bay this afternoon, flurries will become heavy at times and will persist for most of tonight. Snowfall amounts will likely be in the 5 cm range but locally higher amounts of 10 to 15 cm
are possible across Huron, Perth, Oxford and Middlesex counties by Saturday morning. There is a risk of brief snow squalls forming tonight and snow squall watches or warnings may be issued if necessary.

Further inland, snowfall amounts will be limited to 1-3 cm for most areas today. However with the strong and gusty winds and Temperatures which are several degrees below freezing, motorists should be prepared for difficult winter driving conditions. The strong and gusty winds will whip up the freshly fallen snow resulting in reduced visibility from blowing snow in exposed Areas. Motorists should be prepared for locally hazardous winter driving conditions from blowing snow and accumulating snow on untreated roads.

The lake effect snow will diminish Saturday as the strong winds subside thanks to a high pressure ridge moving in from the west.

Please monitor the latest forecasts and warnings from Environment Canada at WWW.WEATHEROFFICE.GC.CA.

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