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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 >

Overview

An early season (pre-Halloween) Snow event occurred on October 24th and 25th giving Central Pennsylvania its first taste of winter. The event started out as as rain when moisture associated with the remnants of Hurricane Wilma and Tropical Storm Alpha streamed up along the East Coast. This tropical moisture was also tapped by a developing East Coast low pressure center that developed in response to an upper level disturbance moving over the region. As colder air moved into Pennsylvania behind the low on Oct 25th much of the rain mixed with and changed to wet snow across Northern and Central Pennsylvania, especially at higher elevations above 1500 feet.

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Pre-Halloween Snowfall and Heavy Rain Event
Associated with Tropical Moisture from Hurricane Wilma
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Snowfall Reports  48 Hour COOP Rainfall
7:00 am Oct 24 through 7:00 am Oct 26
24 Hour COOP Snowfall
Ending 7:00 am Oct 26
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