10:30 p.m. update: Temperatures have dropped into the upper 20s to near freezing (downtown) setting the stage for the snow moving in – probably around 3 or 4 a.m and exiting between 9 and 10 a.m. (note we’ve pushed back the timing slightly).

The latest modeling and radar trends gives us some confidence that our forecast – calling for 1 to 2 inches – is pretty much on track.  But most models this evening seem to be simulating closer to 1″ than 2″ which could signal a slightly elevated bust potential. On the other hand, the possibility remains of some heavier bands forming near or just west of I-95 corridor, pushing some localized accumulations over 2 inches.

This is just one of those events where we may not have a great idea how it’s going to play out into it’s already well underway. We’ll be back just after 5 a.m. with live coverage.

The RAP high resolution model simulates snow totals of 1-2″ along the I-95 corridor. (WeatherBell.com)

Radar & lightning: Latest regional radar shows movement of precipitation and lightning strikes over past two hours. Refresh page to update. Click here or on image to enlarge. Or see radar bigger on our Weather Wall.

March is quickly approaching but winter weather shows no signs of slowing down. After today’s 1-3 inches of snow, another area of snow scoots into the region late tonight and may produce similar amounts by mid-morning Wednesday. Temperatures remain well below normal.

Through Tonight: Skies may partially clear briefly this evening, before clouding over quickly after midnight.  Snow redevelops between 2 and 4 a.m., from southwest to northeast.  Lows range from the low-to-mid 20s in the colder suburbs to the mid-to-upper 20s downtown – cold enough for snow to stick on most surfaces. Light winds.

Tomorrow (Wednesday): Snow is likely at sunrise, but quickly tapers off from west to east between 8 and 10 a.m.  Accumulations are generally in the 1-2 inch range, but locally higher or lower amounts are certainly possible.

For additional details on our snow forecast and SchoolCast and FedCast, see this link: New round of snow may slow Wednesday morning commute

Capital Weather Gang snow accumulation map, issued 4 p.m. Tuesday.

Skies become partly to mostly sunny in the afternoon helping to melt the new snow.  But winds crank up out of the northwest at 10-20 mph, with some higher gusts.  Highs in the mid-30s or so feel like in the 20s to near 30.

See Matt Rogers’ forecast through the weekend. And if you haven’t already, join us on Facebook and follow us on Twitter . For related traffic news, check out Dr. Gridlock.

Snow in the morning, gone in the afternoon: Today’s snow at Reagan National Airport totaled 2.8 inches, the third biggest snow this winter. The seasonal total is now up to 18.3 inches, the fourth highest in the last 25 years. However, as quickly as it fell, it disappeared. Look at the scene in Cleveland Park (NW D.C.) late this morning and in the afternoon.

Snow late this morning (top) and mid-afternoon (bottom) in Cleveland Park (Ian Livingston)

The strong late February sun makes quick work of a fluffy snowfall.