Weather across the nation on October 20, 2016

A cold frontal boundary extended southwestward from the eastern Great Lakes to the southern Plains.

Moderate rain and embedded thunderstorms developed along and near this frontal boundary across New England, the Midwest, the Tennessee Valley, the Mississippi Valley, the western Gulf Coast and the southern Plains.

Locally heavy rain developed in the Midwest as a wave of low pressure deepened along the frontal boundary. Flash flood watches were issued in eastern Ohio, northern West Virginia, western Pennsylvania and western New York. Youngstown, Ohio, reported a midday total of 3.72 inches of rain.

Belleville, Illinois, reported a midday total of 3.71 inches of rain. A cold air mass trailed this frontal system. Temperatures dropped 5 to 10 degrees below normal from the southern Plains to the Midwest. Frost advisories were issued in southern Wisconsin and northern Illinois.

Meanwhile, a cold frontal boundary approached the West Coast. Moderate rain and high elevation snow developed ahead of this frontal boundary in western Oregon, Washington, northern Idaho and northwest Montana.

Stampede Pass, Washington, reported a midday total of 2.0 inches of rain. Shelton, Washington, reported a midday total of 1.81 inches of rain. High pressure brought warm and dry weather to most of the Southwest. Offshore winds elevated fire danger in Southern California.

Camp Pendleton, California, recorded a midday high of 96 degrees. Los Angeles, recorded a midday high of 91 degrees.

THURSDAY'S WEATHER EXTREMES:

HIGHEST TEMPERATURE (DEGREES F).........................97 Edinburg, Texas

HIGHEST HEAT INDEX (DEGREES F)..........................100 Kingsville NAS, Texas

LOWEST TEMPERATURE (DEGREES F)..........................10 Big Piney, Wyo.

LOWEST WIND CHILL (DEGREES F)...........................-8 Barter Island, Alaska

HIGHEST WIND GUST (MPH).................................56 Guadalupe Pass, Texas

HIGHEST PRECIPITATION (INCHES)..........................3.72 Youngstown, Ohio

© 2017 Associated Press


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