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Weather across the nation: 12/28/12

4:26 PM, Dec 28, 2012   |    comments
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A trough of low pressure over the Mississippi River Valley created active weather for the Eastern Valleys on Friday.

The system to the south pulled abundant moisture in from the Gulf of Mexico, which allowed for showers and thunderstorms to develop from eastern Texas through the Tennessee Valley. Some of these storms turned severe with heavy rainfall and strong winds.

Rainfall totals surpassed 2 inches in parts of Louisiana, while wind gusts ranged from 30 to 40 mph. Heaviest rainfall was reported in Oakdale, La., with a midday total of 2.43 inches of rain. The northern side of this system remained cooler and allowed for snow and freezing rain showers to spread from Oklahoma through Missouri. This created dangerous roads and travel conditions for the region.

Farther north, a trough of low pressure moved from the Upper Midwest and over the Great Lakes. This brought snow showers to the region and allowed for lake effect snow showers to develop along downwind shores of the Great Lakes. Snow showers were reported from Wisconsin through western New York states. Snowfall totals range from 2 to 4 inches in these areas.

Meanwhile in the West, a low pressure system dropped southward down the West Coast, and pushed a cold front slightly onshore. This produced scattered rain showers from northern California through British Colombia.

FRIDAY'S WEATHER EXTREMES:

HIGHEST TEMPERATURE (DEGREES F).........................82 Marathon, Fla.

HIGHEST HEAT INDEX (DEGREES F)..........................86 Marathon, Fla.

LOWEST TEMPERATURE (DEGREES F)..........................-16 Pine Ridge, S.D.

LOWEST WIND CHILL (DEGREES F)...........................-47 Point Lay, Alaska

HIGHEST WIND GUST (MPH).................................75 Mt. Washington, N.H.

HIGHEST PRECIPITATION (INCHES)..........................2.43 Oakdale, La.

ON THIS DATE....... Two notable 24-hour snowfall records occurred on this date in history. First, in 1955 Anchorage, Alaska reported 17.7 inches in 24 hours, establishing a record for the city. Next, in 1958 Albuquerque, N.M. received 14.2 inches to establish its 24-hour record.

The Associated Press

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