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Unsettled Weather in the Southeast and West; Unseasonably Hot in the North-Central U.S.; Coastal Impacts Along the East Coast

Thunderstorms and heavy rainfall may produce isolated flash flooding along the southeast Atlantic coast the next several days. Showers and thunderstorms persist across portions of the Great Basin, Pacific Northwest, and northern Rockies. Unseasonably hot temperatures continue for much of the Plains and Midwest. High surf, dangerous rip currents, and coastal flooding continue along the East Coast. 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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