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Powerful Storm in the Western U.S.; Heavy Rain and Flooding Threat Across the Central Gulf Coast

A powerful storm system will continue to bring heavy mountain snow, rain, and high winds to the Pacific Northwest and northern California through midweek. Heavy rain and flash flooding potential exists across the central Gulf Coast over the next few days, including the Florida Panhandle. A Slight Risk (level 2 of 4) of excessive rainfall is in effect Tuesday. Read More >

Dramatic Temperature Rise May 15, 2013
A dramatic temperature rise occurred over Central Pennsylvania during the late morning and afternoon hours of May 15, 2013. The temperature graphs below record large temperature changes as a warm front moved across the area. For example, in 4 hours, State College rose from 55 to 81. That's almost 7 degrees per hour.

 

Altoona temp trace

Du Bois temp trace

Clearfield temp trace

Johnstown temp trace

Harrisburg Temp Trace

State College temp trace

max temperature 5/15

COOP Max Temperature for May 15, 2013

Surface Map 1700 UTC

Surface Map 1700 UTC May 15, 2013