Wednesday, February 24, 2010

Weather Update 11:48 PM

Spotty snow showers will be possible tonight and into very early tomorrow morning. Temperatures continue to hover above freezing, so most of the snow will melt on impact. We are expecting about an inch or less for most of central Virginia. Most of this will be on grassy surfaces and anything detached from the ground.

New Watches/Advisories Issued

A winter weather advisory is now in effect for north-central Virginia, and a winter storm watch is in effect for the counties in the Northern Neck. The Richmond Metro Area is currently seeing light rain, with a few communities west of I-95 reporting a few snowflakes mixing in. Snow is being generated in the cloud layer, but is melting in an above-freezing layer near the surface. This layer will become shallower as the afternoon and evening wears on, allowing snow to reach the surface. Accumulations will be limited to grassy surfaces, as surface temps will still be several degrees above freezing.

Snow Forecast Update


A Winter Storm Watch is in effect from late tonight through early Friday morning for the Northern Neck, where persistent snow showers are expected overnight through early Friday as a strong low pressure system spins offshore and gradually tracks northward. In the Watch area, 2" or more of accumulation is expected, with some spots potentially receiving near 5" of accumulation. In the rest of Central Virginia, 1"-2"of snow is expected, with some spots potentially receiving near 3", and areas into the Piedmont less than an inch.
Mid-day Wednesday, rain showers are expanding into Central Virginia, with snow in Southwest Virginia. A changeover to snow is expected in all of Central Virginia just after dark, with snow showers continuing through the Thursday morning commute. Surface temperatures will not fall to freezing until after Midnight tonight, which means most of the snow will primarily accumulate on grassy and elevated surfaces. The roads will remain wet tonight until pre-dawn Thursday. At that time, some light accumulation on the roads is possible, which could impact your morning commute.