Thursday, August 29, 2013

National Weather Summary for August 29,2013,from weatherunderground.com

Weather Underground midday recap for Thursday,August 29,2013.

Hot temperatures continued for the Midwest, showers and thunderstorms developed across the Southwest, and rain showers moved into the Pacific Northwest on Thursday. A low pressure system over the Dakotas slowly advanced eastward toward the Great Lakes. Flow around this system created a warm front that pushed showers and thunderstorms into northern Minnesota. Some of these storms turned severe with strong winds that blew down thick tree branches near Oslo, Minnesota. Hibbing, Minnesota saw the heaviest precipitation with these storms with a midday total up to 0.95 inches of rain. South of these storms, the warm front ensured near-record breaking high temperatures across the Dakotas, Minnesota and Iowa. High temperatures varied in the 90s, about 10 to 15 degrees above normal with heat index values up to 105 degrees. Heat advisories have remained in effect for these areas.

In the West, moisture lingering over the Southwest allowed for more showers and thunderstorms to develop from southern California and northern Baja California through Arizona and New Mexico. Meanwhile to the north, a low pressure system dropped southeastward from the Gulf of Alaska and pushed a cold front into the Pacific Northwest. This triggered scattered rain showers that spread across western Washington and Oregon throughout the day.

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