Tuesday, January 27, 2009

Some Wintry Weather Today...


Precipitation will arrive across the region this morning as a mixture of snow, sleet, freezing rain and rain. The Metro Richmond area is likely to see some snow and sleet through midday, before a change to rain by the afternoon. From the Tri-Cities south, mainly rain is expected and north and west of town, wintry weather will persist into the afternoon.

The model data remains consistent with critical values in the various levels of the atmosphere, which would indicate a mainly liquid event during the afternoon from the metro south. The initial batch of precipitation will help to cool the column of air, causing the snow and sleet at the start. As milder air gradually advances in from the south, everyone will eventually go over to rain, but it may take until at least Wednesday morning up in the higher elevations well north and west.

Here are my expectations for potential accumulation:

Metro Richmond: a light coating of snow and sleet possible with some icy/slick spots, but no "significant" accumulation is expected (although freezing rain could be a threat for a couple of hours)

North & West Suburbs (from Ashland/Goochland N & W): An inch or two of snow and sleet, with some additional ice accumulation

Charlottesville over to Fredericksburg: 1-3 inches of snow and sleet with additional ice accumulation

Harrisonburg/Staunton: 2-5 inches

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