Tomorrow is forecast to be Much Warmer than today.
Nowcast as of 5:32 PM EST on December 8, 2009
Now
Patchy light snow will be possible across south central Pennsylvania by mid evening. Most of the snow will be south of an Ebensburg...Mount Union...Harrisburg...Lancaster line through 9 PM. The leading edge of the snow is moving northward at 15 mph. Persons traveling this evening should be prepared for such changes in conditions and slow down in areas of snow.
Forecast for Somerset
Updated: 4:23 PM EST on December 8, 2009
Winter Storm Warning in effect from 7 PM this evening to 11 am EST Wednesday...
High wind watch in effect from Wednesday afternoon through late Wednesday night...
Tonight
Snow developing this evening...changing to a wintry mix of sleet and freezing rain overnight. Snow and sleet accumulation of 1 to 3 inches. Ice accumulation of up to one half of an inch. Lows in the upper 20s. Southeast winds 15 to 20 mph with gusts up to 35 mph. Chance of precipitation near 100 percent.
Wednesday
Freezing rain changing to rain in the morning. Then rain showers along with a slight chance of a thunderstorm in the afternoon changing to snow showers late. Little or no additional snow accumulation. Ice accumulation of up to a tenth of an inch. Blustery with highs in the lower 40s. Temperature falling into the mid 30s in the afternoon. South winds 15 to 20 mph with gusts up to 35 mph... becoming southwest 15 to 25 mph with gusts up to 50 mph. Chance of precipitation near 100 percent.
Cloudy with a 50 percent chance of snow showers. Windy with lows around 20. West winds 25 to 30 mph with gusts up to 50 mph.
Thursday
Cloudy with a 50 percent chance of snow showers. Blustery and much colder with highs in the lower 20s. West winds 20 to 25 mph with gusts up to 45 mph.
... Winter Storm Warning in effect from 7 PM this evening to 11 am EST Wednesday...
The National Weather Service in State College has issued a Winter Storm Warning for significant ice accumulation preceded by a few inches of snow... which is in effect from 7 PM this evening to 11 am EST Wednesday. The Winter Storm Watch is no longer in effect.
Developing low pressure over the Southern Plains will track northeast into the Great Lakes tonight and Wednesday. This system will spread snow into the area this evening... followed by a quick change to a wintry mix then freezing rain later tonight.
1 to 3 inches of snow will likely accumulate early tonight before the changeover. However... the potential exists for a significant coating of ice later tonight... before precipitation changes to plain rain and tapers off to drizzle by late Wednesday morning.
The areas most at risk for a significant accumulation of ice are the higher terrain over 2000 feet above sea level.
Precautionary/preparedness actions...
A Winter Storm Warning means significant amounts of snow... sleet... or ice are expected or occurring. Those with travel plans in the warned area are advised to take an alternative Route... or should use extreme caution if travel is unavoidable. Carry extra supplies... including blankets... food and a cellular phone in case your car becomes stranded. Stay tuned to NOAA Weather Radio or your favorite source of weather information for the latest updates. Additional details can also be found at... weather.Gov/statecollege.
High Wind Watch
Statement as of 1:57 PM EST on December 08, 2009
... High wind watch in effect from late Wednesday afternoon through daybreak Thursday...
The National Weather Service in State College has issued a high wind watch... which is in effect from Wednesday afternoon through late Wednesday night.
A strong cold front will push east from the Ohio Valley Wednesday... crossing the western mountains of Pennsylvania late in the day Wednesday. Strong westerly winds will develop in the wake of this front as much colder air surges into the region.
Sustained... west winds will average 25 to 30 mph... with potential gusts between 50 and 60 mph. The possibility of a thin coating of ice remaining on trees and power lines from our upcoming winter storm could lead to wind damage and power outages from lesser wind gusts.
Precautionary/preparedness actions...
A high wind watch means there is the potential for a hazardous high wind event. Sustained winds of at least 40 mph... or gusts of 58 mph or stronger may occur. Continue to monitor the latest forecasts.