Henry Margusity

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Maybe Some More Snow. Severe Weather Returns Too!

April 24, 2012; 8:28 AM ET


1. The stormy weather pattern will continue the rest of the week as a huge contrast in temps develops from the Plains to the Carolinas. Temperatures south of the front will be in the 80s/90s and north of the front, temps will be in the 50s/40s. That contrast will be the focus point for some wild weather, including the potential for more snow and certainly severe weather.

2. My initial concern is for Wednesday afternoon and evening in the Midwest and Tennessee Valleys. High dew point air and very warm temps will undercut northwesterly flow, creating a shear environment that will be conducive for severe weather development. While the main impacts will be large hail and damaging winds, I am concerned for another outbreak of tornadoes. The model soundings look more conducive for damaging wind gusts with any storm that develops. The EHI values off the NAM model differ and say that the shear is there for tornadoes. We have 24 hours to take a look at it and try to hone in on the type of weather and who might get hit.

3. The discharge of cold air out of eastern Canada later this week could set the stage for another round of snow in the area shown in the map in the East. The wave of low pressure that moves across the Ohio Valley and mid-Atlantic could tap that cold air and produce a band of 1-4 inches of snow across the higher elevations from Pennsylvania into New England.

The views expressed are those of the author and not necessarily those of AccuWeather, Inc. or AccuWeather.com


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About This Blog

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