Saturday, September 28, 2013

National Weather Summary for September 28,2013,from weatherunderground.com

Weather Underground midday recap for Saturday,September 28,2013.

A cold front continued to trek through the central part of the U.S. on Saturday, while a ridge of high pressure brought pleasant conditions to the majority of the East Coast.

A slow moving cold front inched into the Pacific Northwest earlier today, which triggered moderate to heavy rainfall over Washington, Oregon, and parts of Idaho. As a precautionary measure, flood watches were issued due to how slow this system was moving. A strong pressure gradient field associated with this cold front produced strong winds in the region, especially over the Cascades and part of the Rockies. Meanwhile to the south, a high pressure system continued to sit over the four corners states, which ushered warm, dry air into the Great Basin and Southwest.

Just to the east of the Great Basin, a cold front extended from Texas to Minnesota. This cold front drove plenty of showers and thunderstorms through the Midwest, as well as parts of the northern Plains. The strongest thunderstorms associated with this system affected Texas, Oklahoma, and Missouri earlier today.

Most of the Eastern Seaboard experienced pleasant weather on Saturday due to a ridge of high pressure over the Northeast. This system drew a cool, dry air mass in from Canada, which kept humidity levels low and mid day temperatures in the 60s and 70s. Florida continued to experience spotty showers and thunderstorms due to an onshore flow from the Atlantic. .

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