7:00 AM | **Significant storm to affect the Mid-Atlantic from late tonight through tomorrow night**

6-Day Forecast

Today

Sun early, clouds late, cold, highs in the low-to-mid 40’s

Tonight

Becoming cloudy, cold, chance for rain, snow or a mix late, lows in the low 30’s

Wednesday

Cloudy, periods of wet snow, possibly mixed with rain at times, becoming windy, cold, upper 30’s

Wednesday Night

Cloudy, windy, cold, more snow likely, total accumulations on the order of 3-6 inches, lows near 30

Thursday

Becoming partly sunny, windy, lingering morning snow showers possible, mid 40’s

Friday

Partly sunny, breezy, chilly, maybe a few snow showers, mid 40’s

Saturday

Mostly sunny, not as chilly, near 50

Sunday

Partly sunny, mild, near 50

Discussion

A major storm is headed towards the Mid-Atlantic region for late tonight and Wednesday and it should bring significant snow to much of West Virginia, Virginia, Maryland and the DC metro region, and the chances for significant snow continue in southeastern Pennsylvania as well. Low pressure will drop southeastward today across the Ohio Valley reaching southern West Virginia by tonight. From there, the storm should move to the southeastern Virginia coast by around mid-day tomorrow and then intensify as it pulls slowly to the northeast. Precipitation should begin in SE PA late tonight in the form of rain or a mix of rain and snow before changing to snow on Wednesday. The heaviest precipitation amounts from this storm continue to seem destined for the region between eastern West Virginia and the Delmarva Peninsula; however, there has been quite a battle going on between the US models (GFS, NAM) and the foreign models (Euro UKMET) with respect to how much precipitation makes it northward into Pennsylvania and New Jersey. The US models have been farther north with their precipitation fields while models like the Euro have suppressed the heaviest precipitation amounts to just south of Philly. This discrepancy continues, but there is certainly enough information that leads me to believe that the Philly region is still in the game for some significant snow accumulations on Wednesday. Preliminary snowfall estimates for the Philly area are 3-6 inches primarily coming during Wednesday afternoon and evening, and estimates for the DC region are 6-12 inches with the higher amounts in the western suburbs of the District.

Video

httpv://youtu.be/OlHcalCbYbI