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Weather across the nation: 11/30/12

5:17 PM, Nov 30, 2012   |    comments
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A major winter storm slammed into the West Coast on Friday, bringing widespread heavy rain, high elevation snow, and strong winds.

A tremendous amount of moisture from the Pacific Ocean spread from northern California into the central part of the state, allowing sustained precipitation to follow.

Rainfall amounts up to 10 inches were reported in the hills north of the San Francisco Bay Area, while strong overnight winds up to 50 mph were reported in San Francisco itself. While this storm was relatively warm, high elevation snow did fall in the Sierra Nevadas above 6,000 feet. The snow became so intense near Lake Tahoe that chains were required for vehicles traveling on Interstate 80.

This rainfall gradually made its way southward down California, spreading heavy rain through the Central Valley into the afternoon. More rain is likely through the evening hours as the main cold front makes its way into the Golden State.

Some streams in northern California have reached flood stage, with minor flooding possible. More flooding is possible over the weekend as another powerful storm slams the same area.

Meanwhile, more rain and high elevation snow fell in the Northwest and Northern Rockies. Several inches of snow fell in the hills of Idaho and Montana.

Elsewhere, a stationary front stretching through the Ohio Valley allowed some snow showers to fall from Ohio through southern New York.

The Northeast rose into the 20s, 30s, and 40s, while the Southeast saw temperatures in the 60s and 70s. The Northern Plains rose into the 20s and 30s, while the Northwest saw temperatures in the 40s and 50s.

FRIDAY'S WEATHER EXTREMES:

HIGHEST TEMPERATURE (DEGREES F).........................91 Marathon, Fla.

HIGHEST HEAT INDEX (DEGREES F)..........................94 Marathon, Fla.

LOWEST TEMPERATURE (DEGREES F)..........................-9 Mt. Washington, N.H.

LOWEST WIND CHILL (DEGREES F)...........................-57 Eagle, Alaska

HIGHEST WIND GUST (MPH).................................70 Mt. Washington, N.H.

HIGHEST PRECIPITATION (INCHES)..........................4.19 Blue Canyon, Calif.

ON THIS DATE....... Today is St. Andrew's Eve. This is significant because folklore says that if you fill a glass to the brim with water and let it stand on your grass all night, you can predict what the coming winter will hold. If any water spills during the night, expect a wet winter. Otherwise, a drought may be coming your way.

The Associated Press

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