Weather Underground midday recap for Thursday,August 15,2013.
Multiple areas of active weather developed across the nation on
Thursday. In the South, heavy rainfall developed along a cold front that
stalled over the Southeast. Abundant moisture from the Gulf of Mexico
fed energy into this system, which allowed for heavy rainfall and strong
thunderstorms to develop from the northern Gulf coast through the
Carolinas. Heaviest rainfall was reported at Mount Pleasant, South
Carolina with a midday total of 2.17 inches of rain. Severe
thunderstorms have not yet developed with this system.
Behind this activity in the Plains, a trough of low pressure over the
northern High Plains slid southeastward toward the Mississippi River
valley. This brought heavy rainfall and strong storms to the central and
southern Plains. These areas were under a slight risk of severe
thunderstorm activity with strong winds and large hail, but severe
storms have not yet developed. Heaviest rainfall across the Plains
reached up to 2.17 inches at Garrison, North Dakota.
Out West, weak monsoonal moisture over Arizona and New Mexico triggered
scattered afternoon thunderstorms. Heavy rainfall has not developed in
these areas. To the north, a low pressure system off the coast of the
Pacific Northwest pushed a cold front eastward, which kicked up a few
scattered showers over Washington and Oregon.
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