Sunday, May 3, 2009

Wet Start to the Month of May

The month of April for Salisbury ended up with above average rainfall and we are already off to a wet start for May. Overall, we are still over eight inches below-average of precipitation for the year. The upcoming forecast will certainly help as showers remain in the forecast.

A cold front, which came through Delmarva on Saturday has stalled out across the tidewater of Virginia. Waves of low pressure will continue to ride along the boundary and provide rounds of showers and possible thunderstorms. The front will wobble north and south over the next several days and the exact position of the front will determine our temperatures and precipitation amounts and chances. Currently the front is well enough to the south to keep most locations on Delmarva on the cooler side in the 50s. The exception is the southern Virginia portion where temperatures are in the low 70s. If there front lifts any further north, the temperature spread will increase from south to north.

The heavy rain and thunderstorm activity remains along and to the south of the front where the atmosphere is most unstable. Right now, most of the thunderstorm chances will remain across southern Delmarva unless the front moves northward. The chance for showers will continue through Tuesday before we catch a break from the rain on Wednesday. More rain chances will then arrive later in the week as the front impacts us again.

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