Elliot Abrams

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Warm Then Wet Then Colder

April 14, 2014; 5:41 AM

Monday morning

This video shows how weather systems should progress this week.

The cold front approaching the East shows up quite well in this pressure analysis. Several temperatures are plotted to give you a sense for how much the temperature changes behind the cold front. At Chicago, it went from 60 at 4 a.m. to 39 at 5:19, a 21-degree drop in little more than an hour.

There were tens of thousands of lightning strikes yesterday and last night, as shown on this map:

Last month, we looked at how the polar vortex high in the stratosphere had weakened then reversed to become a high pressure area. In midwinter, that change can signal colder, stormier weather for the Middle and North Atlantic states. This map shows the same high was in place on Sunday evening. This kind of occurrence in spring may not mean as much as it does in midwinter.

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

Elliot Abrams
Elliot Abrams from AccuWeather.com offers this Northeast Weather Blog for the U.S. with regular updates on NE weather from a leading forecaster and meteorologist.