Wednesday, January 26, 2011

Updated Winter Weather Map: 12:30PM Wed

As of 12:30 p.m. Wednesday, this is the updated Winter Storm Warning and Winter Weather Advisory map for central Virginia:

North-central Virginia counties are now included in the Winter Storm Warning, including Spotsylvania and Stafford Counties. This warning lasts until 4 a.m. in northern Virginia for heavy accumulating snow. The expected accumulations remain about the same in our area:

The change over to snow is already occurring in western Virginia at Noon as the potent upper low pressure system approaches. I still expect bursts of heavy, wet snow to occur this afternoon and evening as this upper system passes overhead. The Richmond metro is still on track to see the change over from rain to snow in the 4-7 p.m. window. Here's a snapshot of the upper vorticity max directly over central Virginia this evening at 7 p.m., when nearly all of central Virginia will have seen the change from rain to snow:

Snow will end from west to east tonight, exiting the state shortly after midnight. The wet pavement in the area will freeze by Thursday morning as temperatures dip into the upper 20s. This will create slick and hazardous conditions on the roads Thursday morning.

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