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A low pressure system moved eastward over the Mid-Atlantic on Thursday. This system ushered heavy rain and thunderstorms across a handful of states. Flash flood warnings were issued in south central Pennsylvania, while flash flood watches were issued across western and northern Virginia, West Virginia, Maryland, Pennsylvania and New Jersey.

Richmond, Virginia, reported a midday total of 1.39 inches of rain, while Warrenton, Virginia, reported a midday total of 1.32 inches of rain. An onshore flow from the Atlantic also triggered isolated thunderstorms across parts of the Southeast, while the central Gulf Coast stayed clear of wet weather.

Meanwhile, a cold frontal boundary extended from western Texas, across the middle Mississippi Valley and over the upper Midwest on Thursday. Numerous areas of showers and thunderstorms developed over the southern Plains, the middle Mississippi Valley and the upper Mississippi Valley, as flood advisories were issued in eastern Kansas and western Missouri. International Falls, Minnesota, reported a midday total of 2.59 inches of rain, while Kansas City, Missouri, reported a midday total of 1.39 inches of rain.

In the West, an onshore flow from the Pacific associated with an area of low pressure brought wet weather to eastern Washington and eastern Oregon. The remainder of the West Coast stayed clear of precipitation due to a ridge of high pressure over the eastern Pacific. The Desert Southwest continued to experience warm, dry conditions, as Thermal, California, recorded a midday high of 100 degrees on Thursday.

THURSDAY'S WEATHER EXTREMES:

HIGHEST TEMPERATURE (DEGREES F).........................103 Presidio Lely Intl, Presid, Texas

HIGHEST HEAT INDEX (DEGREES F)..........................107 Kingsville NAS, Texas

LOWEST TEMPERATURE (DEGREES F)..........................28 Stanley, Idaho

LOWEST WIND CHILL (DEGREES F)...........................19 Point Hope, Alaska

HIGHEST WIND GUST (MPH).................................64 Oklahoma City, Okla.

HIGHEST PRECIPITATION (INCHES)..........................2.59 International Falls, Minn.

ON THIS DATE....... On this date in 1969, record snowfall covered parts of the Northern Plains. Five inches of snow accumulated at Great Falls, Montana, while 10 inches fell on Deerfield, South Dakota. Snow fell as far south as Kimball, Nebraska, and Billings, Montana, tied a low temperature record with 32 degrees.

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