Henry Margusity

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Latest on the Big Daddy Blizzard and Severe Weather

February 20, 2014; 9:48 AM ET


I see they put out the moderate risk for severe weather today which I think is warranted given the parameters. The storm will deepen heading into the Great Lakes, and the trough will take on a negative tilt. We are already seeing high winds and blowing dust across parts of Oklahoma which is a good indication of a deepening store and strong jet. Storms will continue to develop new the low center, and we should see severe weather all the way into the Great Lakes near the notch of the storm. The main round of storms will develop around 19z or 1 p.m. CST across parts of Arkansas, Louisiana and eastern Texas. During the initial phase of the storms is when the tornado threat will be the highest. Once the storms form a squall line, the severe threat becomes more wind damage with embedded rotation centers that can spin-up quick-hitting tornadoes.

On the northwest side of the storm, blizzard conditions will develop near Omaha and head into Iowa and Wisconsin later today and tonight. Winds will be gusting over 40 mph with heavy snow creating huge drifts and very dangerous weather. I put the AccuWeather snow map below to give you an indication of snow amounts, but with the wind it will be hard to measure the snow.

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Henry Margusity
AccuWeather.com severe weather expert, Henry Margusity, offers the Meteorological Madness blog including detailed analysis of severe weather across the US.