Friday, February 06, 2015

The Washington Post has caught the essence of the danger. It is abrupt and rapid change.

February 20, 2015
By Angela Fritz

Friday (click here) arrived with an icy slap as Arctic air surged into the eastern United States. The cold snap caused long-standing records to tumble across the Midwest and Eastern Seaboard.
A new, all-time record low for any month was set in Lynchburg, Va., on Friday morning, when the city dropped to minus 11 degrees. The previous all-time low was minus 10, set in 1985 and 1996.

Flint, Mich., has tied its all-time record low for any month when the temperature dropped to a brutal minus 25 degrees on Friday morning. The last time it was so cold in Flint was on Jan. 18, 1976.

Cleveland broke its all-time record low for the month of February when the thermometer bottomed out at 17 degrees below zero on Friday morning. The new record surpassed the previous by one degree, set more than a century ago on Feb. 10, 1899....

When temperatures change this rapidly and severly don't be caught unaware.

February 22, 2015
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The Weather Channel 24 temperature change map

In the eastern USA temperatures rose positively while they dropped in the midwest. However, the rising temperatures would not necessarily relieve the cold. It is rather amazing to realize southwest Pennsylvania rose 22 degrees in 24 hours only to achieve a temperature of 33 degrees F.

February 22, 2015
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The Weather Channel current temperature map.