Today’s weather: A dense fog advisory is in effect until 8 a.m. for Roanoke, Botetourt, Rockbridge, Franklin and Patrick counties eastward. After some fog and drizzle to start the day, courtesy of a wedge of cool, damp air that pushed southward and westward along the eastern slopes of the Appalachians on Sunday, we’ll see a mild, mostly cloudy day with highs in the 60s, before afternoon and evening chances of showers with an approaching cold front. Don’t expect a lot of rain — probably no more than 0.25 for most in Southwest Virginia, up to 0.50 for some. (At left is the 0Z North American Model depiction of how it projects radar to look about 7 p.m. this evening.) It will turn significantly colder for Tuesday behind the cold front, with highs not getting out of the 40s in most spots. A few snowflakes in higher elevations are possible.
Speaking of snowflakes, here is the weekly Weather Journal Snow Meter, reprinted from Monday’s edition of The Roanoke Times.
Snow Meter (12/10-12/16)
Roanoke (0 of 10 chance of seeing 1 inch of snow in next week): 0 snowflakes
Blacksburg (0 of 10 chance of seeing 1 inch of snow in next week) * 1 snowflake
Outlook: A strong cold front will push through late today or early Tuesday, but it will just bring us back to near-normal temperatures (mid 40s-low 50s highs, mid 20s-low 30s lows) for a couple or three days. The only hint of snow with this will be, possibly, some snow showers caused by northwesterly winds blowing over the Appalachians early Tuesday. That’s the only reason I’ve posted a single flake for Blacksburg. We will be well southeast of the following storm system next weekend, which will put us on the mild side of that one, too. I just don’t see any plausible snow scenarios for Roanoke this week, and only the distantly remote chance of a random snow squall early Tuesday at Blacksburg.
Season to date: It didn’t come close to snowing this past week, which began with a record high temperature of 73 at Roanoke a week ago today. My very low numbers, a single flake for Roanoke and two for Blacksburg, were actually generous. But I get wins for a week with fewer than five flakes on the snow meter that didn’t produce an inch of snow. Current records: 1-0 for Roanoke, 1-0 for Blacksburg.