Another
week and another storm…but this is déjà vu for forecasters, as this closely
resembles the same situation that occurred with the storm in early March. A low pressure system will push from west to
east to the south of our region.
However, cold, dry air from the north will flow into our region and set
up a sharp gradient between those who see snow and who don't.
Timing
Precipitation
should enter the region Sunday night and last until Monday afternoon. After that, scattered flurries/snow showers
could linger throughout the Mid-Atlantic.
The further south you are, the more likely it is that you see a longer
duration in snowfall.
Snowfall
The dry air being ushered
into our region has the chance to keep all accumulating snow south of
Philadelphia. Therefore, in the snow map
that follows, I have first labeled an area, within the dashed lines, as ‘Area
of highest uncertainty’. I believe that
the line between accumulating snow and non-accumulating snow showers/flurries
will setup. Then, the light blue swath
is ‘T-2’, which represents an area where I believe that anything from flurries
to 2” of snow may fall. Finally, the ‘2-5’
swath is where I think the heaviest axis of snow will fall. Also, warmer surface temperatures will likely
affect how much snow actually sticks, but that is one of the challenges with
forecasting in March. In summary, the
further south you go the better of a chance you have at accumulating snowfall.
Snowfall Map
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