It has been stressed over and over that this is a very stormy time of year,so what we are experiencing now is not unusual. A bit crazy maybe, butdefinitely not unusual. The stormy pattern is in response to the growing warmthacross the South and the residual cold that still exists across the north. Thisforces larger temperature gradients, which are reflected in larger differencesin air pressure. The pressure gradient causes the air to move, and this is howstorms get born.The latest in a series of big storms will track right across the heart ofthe nation this weekend, causing blizzard conditions from eastern Wyoming intoNebraska and southern South Dakota. Next week, this same storm will have a hugebearing on the weather in the Eastern part of the country.

Story by AccuWeather.com Expert Senior Meteorologist John Kocet.