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A ridge of high pressure brought sunny conditions to eastern third of the country on Thursday, while a cold frontal boundary stretched from the Intermountain West to the upper Midwest.

Light showers pushed across parts of the West Coast on Thursday, while winter storm watches were issued across the Cascades and northern Rockies. The coasts of northern California, Oregon and Washington experienced light showers during Thursday morning, while showers began to pick up in the early afternoon.

Temperatures ranged between the 40s and 50s in Washington and Oregon, while temperatures ranged between the 50s and 60s in northern California and Nevada. Southern California and Arizona experienced much warmer temperatures as offshore winds allowed temperatures to spike into the 80s and 90s. Camp Pendleton, Calif., recorded a midday high of 90 degrees, while Tucson, Ariz., recorded a midday high of 87 degrees.

A cold front extended from Colorado to Minnesota on Thursday, which provided a mixture of rain and snow to the upper Midwest. Northern Iowa and southern Minnesota experienced light showers, while light snow showers pushed across Wisconsin and northeastern Minnesota. Gusty winds accompanied this frontal boundary, as Greeley, Colo., reported wind speeds of 45 mph.

A ridge of high pressure kept the eastern third of the country sunny on Thursday. Temperatures ranged between the 30s and 40s in the Northeast, while temperatures ranged between the 60s and 70s in the Southeast.

THURSDAY'S WEATHER EXTREMES:

HIGHEST TEMPERATURE (DEGREES F).........................90 Camp Pendleton, Calif.

HIGHEST HEAT INDEX (DEGREES F)..........................90 Tucson, Ariz.

LOWEST TEMPERATURE (DEGREES F)..........................10 Mt. Washington, N.H.

LOWEST WIND CHILL (DEGREES F)...........................-18 Arctic Village, Alaska

HIGHEST WIND GUST (MPH).................................82 Mt. Washington, N.H.

HIGHEST PRECIPITATION (INCHES)..........................2.30 Fairbanks Eiels, Alaska

ON THIS DATE....... A powerful storm hit Northern California on this date in 1988 and produced heavy snow and gusty winds in the Sierra Nevadas. Donner Summit was blanketed with 23 inches of snow and Blue Canyon reported 3.19 inches of precipitation.

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