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Weather across the nation: 12/13/12

6:43 PM, Dec 13, 2012   |    comments
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The active weather pattern in the southeastern corner of the nation will wind down throughout the day, while wet weather continues to spread across the West.

In the East, light moderate showers, with periods of heavy rain and thunderstorms will taper off from west to east in the Southeast as the cold front and waves of low pressure impacting the region pushes off the Florida coast by tonight.

Showery weather in southeastern Florida will be the last area to clear out as the tail of this disturbance drops slowly through the region. As this disturbance departs and moves offshore into the western Atlantic Ocean, high pressure in the Eastern Valleys will spread into the Mid-Atlantic, allowing drier and warmer weather conditions to prevail across much of the East.

Behind this activity, light scattered showers will continue across portions of the Northern Plains and the Upper Mississippi Valley as a nearly stationary front lingers over the region.

The frontal boundary will merge with a Pacific frontal system dropping across the West, allowing for more vigorous weather activity to develop across portions of the Intermountain West, Southwest, and southern California.

Rain showers and and high elevation snow showers in California and the Intermountain West will become more focused over Arizona and Utah through the day with isolated thunderstorms expected in the afternoon.

Elsewhere in the West, another Pacific frontal system will approach the Pacific Northwest beginning tonight with another round of showers.

WEDNESDAY'S WEATHER EXTREMES:

HIGHEST TEMPERATURE (DEGREES F).........................84 Miami, Fla.

HIGHEST HEAT INDEX (DEGREES F)..........................89 Marathon, Fla.

LOWEST TEMPERATURE (DEGREES F)..........................-16 Alamosa, Colo.

LOWEST WIND CHILL (DEGREES F)...........................-58 Nuiqsut, Alaska.

HIGHEST WIND GUST (MPH).................................61 Tin City, Alaska.

HIGHEST PRECIPITATION (INCHES)..........................1.57 Cocoa Beach, Fla.

ON THIS DATE:

The coldest December weather to date of the 20th century hit the South on this date in 1962. Jacksonville, Fla. recorded a low of 12 degrees, while Tampa, Fla. bottomed out at 35 degrees (both records). Blairsville, Ga. set a state record low for the month of December with 9 degrees.

The Associated Press

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