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Reposted from WattsUpWithThat.
Arctic blast coming to Eastern US – likely to be the coldest opening to calendar spring in at least 50 years
Another massive cold wave headed for Eastern US next week to put temperature 20 degrees below normal
Senior WeatherBell Meteorologist Joe Bastardi commented:
I am 58.. never seen anything close to this for late March.
and
[The] pattern next week has as much extreme potential for the time of the year as I can find. Coldest opening to calender spring in 50 yrs at least.
Weather forecast models such as the ECMWF and NCEP, both of which have had good track records this year in identifying polar vortex outbreaks in advance, are now forecasting a massive cold blast for the beginning of spring. See maps:
Dr. Ryan Maue commented on this forecast from ECMWF:
ECMWF 12z (WMO-Essential) 850-hPa temperature + wind streams. Final 10-day outcome after 2nd Arctic blast. Brutal.
He added:
Canadian ensemble system looks like other guidance at 7-days as well. This cake is baked. Arctic blast to end March
…
If Lake Michigan can open up a bit, then this cold could drop enormous amounts of Lake Effect snow on Lower Peninsula of Michigan.
4:49 AM EDT Tuesday 11 March 2014
(click on live map to go to EC site to click on specific zone info)
Winter storm warning in effect for:
Niagara Falls – Welland – Southern Niagara Region
St. Catharines – Grimsby – Northern Niagara Region
Simcoe – Delhi – Norfolk
Chatham-Kent – Rondeau Park
Windsor – Leamington – Essex County
All ofthe north shore of Lake Ontario east of Prince Edward County and the St. Lawerence Valley
Heavy snow and blowing snow Wednesday.
An intensifying low pressure from Kansas is forecast to track south of the Lower Great Lakes on Wednesday. Precipitation in the form of rain or wet snow and slight risk of freezing rain are expected over the Niagara region overnight and change to snow on Wednesday. The snow will quickly become heavy at times and continues east into the Kingston to Cornwall region through Wednesday with a total snowfall amounts of 15 to 25 cm expected by Wednesday night.
In addition, brisk northeasterly winds will also cause low visibilities at times in blowing snow.
Watches in effect for most Lake Erie and Lake Ontario shoreline areas.
For the GTA:
5:09 AM EDT Tuesday 11 March 2014
SPECIAL WEATHER STATEMENT
Snow and blowing snow Wednesday.
An area of low pressure from Kansas is forecast to track south of the Lower Great Lakes on Wednesday. This system is expected to generate snow and local blowing snow for Wednesday for regions just north of Lake Erie and across the Niagara region. Although snowfall accumulations will depend on the exact track of this system current information suggests total snowfall amounts in the range 5 to 15 cm are possible.
Motorists will be advised to exercise caution when travelling or commuting due to poor visibilities in snow and blowing snow.
Please monitor the latest forecasts and warnings from Environment Canada at http://www.weatheroffice.gc.ca.
The public is advised to monitor future forecasts and warnings as warnings may be required or extended.
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Additional real-time weather radar in Southern Ontario is available 24/7 From Ephemerata Weather Radar
EWR Wx ALERT 