Tuesday, February 19, 2008

Friday snow event, Tuesday major ice/snow

The models have trended further away from phasing the two shortwaves. The southern system in this senario will likely rob a lot of the moisture from the northern storm. The northern storm will be first to arrive, with some light snow showers possible through Friday afternoon. The new NAM forecast (NCEP upgraded the NAM this past week) leaves us high and dry with the southern storm, sending it out into the Atlantic once it exits the Carolina coast. Considering these trends, it would appear to be likely that we get nothing at all. However, most models have a tendency to trend to the NW late in the game, so will keep a light accumulation in the forecast.

Snow accumulation forecast: 1" to 3"

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Coastal storm potential exists next Tuesday (2/26) with large water equivalent possible. There will be ptype issues with this storm. Significant snow and ice accumulations are possible granted no changes. Considering the uncertainty centered around Friday and this weekend, no changes for Tuesday cannot be guarenteed.

Preliminary snowfall forecast: 3" to 6"

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