Feb 3: Coastal Snowfall Detected!

Jonathan Carr
By Jonathan Carr February 3, 2016 20:02

Feb 3: Coastal Snowfall Detected!

expected accumulations for february 5-6, 2016 for the coastal snow event

 

After the rain pushes through tonight, the cold front will stall just off our coast. A weak area of low pressure will then travel northward along the stationary front and throw in some moisture off the Atlantic Ocean into air just cold enough to produce snow at the mid-to-upper levels. The surface could be pesky temperature-wise which could affect final snowfall accumulations. It might be the case where accumulations are higher on natural surfaces and reduced on paved surfaces. For this reason I think plenty of snow will fall however final accumulations should be knocked down by the warmer surface temperature profile.

KaboomWinterHats

This baby snow event however has two things that could work in favor of seeing the higher end of the accumulation range. 1) It’s happening during overnight hours (no solar surface heating to fight it) and 2) Precipitation rates could overpower the surface with colder mid-level air. For this stated uncertainty, surface temperatures will have to be now-casted. Daytime temperatures tomorrow will still be pretty mild (for snow). This events magnitude will all depend on how quickly the surface cools to 32 or just below heading into overnight tomorrow night/early Friday AM hours.

We’re looking at a very sharp cutoff to the W regarding snow vs. no snow. That cut-off could realistically range between Lancaster, PA and just E of Philly.  I believe my snow map above expresses all of these ideas and concerns. Have a great night and be safe! JC

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Jonathan Carr
By Jonathan Carr February 3, 2016 20:02

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