US National Weather Summary for October 20,2012

Here's the US National Weather Summary for Saturday,October 20,2012,as of 11PM,EDT/ 8PM,PDT, October 20,2012,from weatherunderground.com,enjoy:







Wet and snowy conditions spread through the Northwest, while scattered showers continued for the Great Lakes and Northeast. A trough of low pressure and an associated cold front continued to drop across the Pacific Northwest and advanced eastward into the Intermountain West and Northern Rockies. Moisture continued to pour in from the Pacific Ocean, while cooler air moved in from the north. This allowed for rain showers to spread across Oregon and Washington, with high elevation snow showers in the Cascades and Northern Rockies. Rainfall totals ranged from 0.50 to 1.00 inches at lower elevations, while the Cascades saw 2 to 8 inches of snow. Snow levels continued to drop throughout the day as cooler air moved in. Snowfall levels reached down to 3,000 feet in some parts of the northern Cascades. The leading edge of this system brought strong winds to the Northern and Central Rockies, with wind gusts from 40 to 50 mph. Thermopolis, Wyoming reported winds up to 56 mph.

Meanwhile in the East, a strong low pressure system lifted northeastward and into eastern Canada. The cold front associated with this system moved through the extreme Northeast before moving into the Atlantic Ocean. This front triggered heavy rain showers from Maine through Connecticut. Severe storms have not been reported, but scattered thunderstorms with strong winds and heavy rainfall have developed. Heaviest rainfall was reported in Groton, Connecticut with a mid-day total of 2.03 inches of rain. Behind this system, flow over the Great Lakes picked up moisture and spread a few more scattered showers across parts of the downwind shores of the Lower Great Lakes. Rainfall totals remained less than a half of an inch in these areas.