Mr. Ected
Footballguy
From Virginia Weather Network...
ETA:FIRST GUESS: SNOW ACCUMULATION (FRIDAY - SATURDAY)
This first guess accumulation map is based off of a blend of the recent and consistent ensembles, and the 0Z European from last night and its ensembles. While the European has had a trend of pushing the highest totals South and East, today's run may have been "too bullish" -- however, most operational models have continued to trend toward the ensemble models to a "colder" storm for the Richmond Metro area.
Snow will begin late Thursday Night across far Southwestern Virginia, and into Southern and Central Virginia between daybreak and mid-morning Friday, with snow developing elsewhere by late morning into early afternoon. The snow will be heavy at times, especially Richmond and points North and West. The precipitation will end West/Southwest to East/Northeast Saturday afternoon.
The big question still remains on the exact position of the developing coastal low and if it stays near the coast or a bit off the coast. With high pressure east of the Great Lakes and into Eastern Canada, this will help to provide Cold Air Damming, funneling in colder air, along with developing low pressure with warmer than normal water temperatures in the Atlantic. With the storm deepening, and all the ingredients combined, this should keep the storm on the colder side from Metro Richmond and points North and West.
There is still some concern that milder air from the Atlantic will get pushed inland later Friday into Friday Night, before going back over to snow, as the Low moves to the North, providing wrap-around moisture. The east side of Richmond, Tri-Cities, and Southern Virginia could mix quite a bit with sleet. Rain could change to snow and sleet in Hampton Roads, before going back to a prolonged period of rain, then ending as snow. The "mainly rain" area at this time appears to be east of a Suffolk - Hampton - Eastern Shore line, including Norfolk and Virginia Beach.
There is some concern with trends on the European model that the heaviest snow totals could shift a bit more South and East. This would mean a colder storm for most everyone, and Hampton Roads could get in on at least light to moderate snow accumulations.
WIND AND COASTAL FLOODING will be a major concern. Winds along the coastline could gust anywhere from 25 to 40 MPH or higher.
From I-95 and points East, this will likely be a very wet snow that accumulates. Therefore, power outages are possible.
We will have another update on the snow accumulation map Wednesday evening or Thursday morning. Right now, this is a preliminary guess with a wide range, but will tighten the range as we get closer to the event.
Also, how to read the map: A/B borderline would be 4", B/C borderline would be 8" D/C borderline would be 14". SOUTH and EAST of the *YELLOW LINE* is where there will be sleet and rain mixing issues. It's just a wide range right now since it's a guess (or preliminary) -- but the guidance data supports this map.
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Winds could be really bad. Jersey shore with possible gusts to 70mph.
