Clipper Threat Dec 29-31.11

[Derecho]

Two minor Alberta Clippers are forecast to move across southern ON through the 31st.

The first clipper should arrive tomorrow afternoon or evening with general accumulations of 5cm for many areas especially between London and Muskoka Region.

The second clipper looks to arrive on the 30th in southwestern Ontario. This event looks to drop light snow and rain accumulations south of a line from about Kincardine to Newmarket. Possibly in the range of 1-3mm and 1-3cm.

Post your observations etc. It's great to finally have a couple rounds of snow, albeit generally light, after a lackluster and miserable December. The pattern isn't looking too great in the long term just yet, so take what you can get now!

[Derecho]

A hearty 5cm in Waterloo from yesterdays clipper.

[Derecho]

Round two on it's way...the second clipper

SEVERE WEATHER BULLETIN
ISSUED BY ENVIRONMENT CANADA
AT 1:00 PM EST FRIDAY 30 DECEMBER 2011.
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WATCHES/WARNINGS IN EFFECT FOR SOUTHERN ONTARIO...

FREEZING RAIN WARNING FOR:
=NEW= CITY OF TORONTO
=NEW= HALTON HILLS - MILTON
=NEW= MISSISSAUGA - BRAMPTON
=NEW= CALEDON
=NEW= YORK - DURHAM
=NEW= WATERLOO - WELLINGTON
=NEW= DUFFERIN - INNISFIL
=NEW= HANOVER - DUNDALK - SOUTHERN GREY COUNTY
=NEW= BARRIE - ORILLIA - MIDLAND
=NEW= BELLEVILLE - QUINTE - NORTHUMBERLAND
=NEW= KINGSTON - PRINCE EDWARD
=NEW= PETERBOROUGH - KAWARTHA LAKES
=NEW= STIRLING - TWEED - SOUTH FRONTENAC
=NEW= KALADAR - BANNOCKBURN - BON ECHO PARK
=NEW= BROCKVILLE - LEEDS AND GRENVILLE.

     OCCASIONAL FREEZING RAIN ON THE WAY.


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==DISCUSSION==

AN AREA OF RAIN OVER LOWER MICHIGAN IS MOVING TOWARD SOUTHERN
ONTARIO.  AS TEMPERATURES ARE EXPECTED TO BE AT OR BELOW THE
FREEZING MARK OVER THE REGIONS, PERIODS OF FREEZING RAIN WILL OCCUR.

THE FREEZING RAIN WILL BEGIN IN THE KITCHENER WATERLOO AREA
LATE THIS AFTERNOON, THE GREATER TORONTO AREA NEAR THE SUPPER
HOUR,
AND THEN SPREAD NORTHEASTWARD TO REACH EASTERN ONTARIO BY LATE
EVENING.

AMOUNTS WILL BE GENERALLY IN THE 3 TO 6 MM RANGE.

THE BOUNDARY BETWEEN THE FREEZING RAIN AND PLAIN RAIN IS EXPECTED TO
LIE FROM THE WATERLOO WELLINGTON AREA THROUGH HALTON PEEL
AND TORONTO.

THE FREEZING RAIN WILL TAPER TO PATCHY DRIZZLE OR FREEZING
DRIZZLE EARLY SATURDAY.

ICY CONDITIONS ARE EXPECTED ON UNTREATED SURFACES.


REFER TO YOUR LOCAL PUBLIC FORECAST FOR FURTHER DETAILS.

END/OSPC