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Weather across the nation: 2/18/13

5:00 PM, Feb 18, 2013   |    comments
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A storm system in the Northern Plains pushed eastward and headed into the Upper Midwest on Monday, while an associated front reached from the Upper Midwest through the Southern Plains later in the day.

Energy from this system and cold temperatures in the north supported more snow shower development and strong northwest winds in parts of the Northern Rockies and the Northern and Central Plains through the Upper Great Lakes as the system shifted eastward.

Northwest winds gusting to 45 mph allowed for periods of blowing snow and ultimately reduced visibilities through the morning and afternoon. Localized blizzard conditions were possible in northeastern North Dakota at times as strong winds produced near white out conditions. Snowfall accumulations of up to 7 inches were anticipated from the Dakotas into Minnesota on Monday.

Meanwhile, to the South, ample moisture from the Gulf of Mexico streamed northward across the western and central Gulf Coasts, allowing showers to develop ahead of the aforementioned front in eastern Texas and the Lower Mississippi Valley.

This activity was expected to spread northward through the Ohio Valley and into the lower tier of the Upper Great Lakes. Due to the fast moving nature of this storm, rainfall amounts across the area were only expected to reach up to an inch in most locations. In addition to showera, isolated thunderstorms were also possible in parts of southern Arkansas, Louisiana, and Texas.

Out West, a Pacific frontal system approached the Pacific Northwest and Northern California with rain showers and high elevation snow.

MONDAY'S WEATHER EXTREMES:

HIGHEST TEMPERATURE (DEGREES F).........................88 Edinburg, Texas

HIGHEST HEAT INDEX (DEGREES F)..........................88 Weslaco, Texas

LOWEST TEMPERATURE (DEGREES F)..........................-14 Mt. Washington, N.H.

LOWEST WIND CHILL (DEGREES F)...........................-70 Kuparuk, Alaska

HIGHEST WIND GUST (MPH).................................127 Mt. Washington, N.H.

HIGHEST PRECIPITATION (INCHES)..........................10.87 Langdon, N.D.

ON THIS DATE....... Today in 1997, a massive Andean mudslide buried two Peruvian villages, killing 300 people. The inhabitants of Ccocha and Pumaranra were actually evacuated from the villages prior to the mudslide, but their refuge higher up the mountain put them in the path of the slide.

The Associated Press

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