Late April 2009 Heat
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Late April 2009 Heat
An expansive and unusually strong ridge of high pressure will build over the Eastern Seaboard through Saturday. The high pressure will be both at the surface and aloft, and allow for abundant sunshine and abnormally warm temperatures. This surface high (ridge) will be much like the mid-summer high pressure areas that commonly build over the Eastern Seaboard and Western Atlantic known as "Bermuda Highs." The southerly winds over the region will bring a noticeable increase in moisture as well as very warm temperatures.

These very warm conditions will last from Friday into at least Tuesday. So, late April will feel more like July. Daily temperatures will run 15 to 20 degrees above normal during this stretch, with afternoon highs in the 70s and 80s.
North American Ensemble Forecast System (NAEFS)<br>Mean Surface Pressure Saturday Evening (25April2009).
North American Ensemble Forecast System (NAEFS)
Mean Surface Pressure Saturday Evening (25April2009).

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Page Last Modified: 23 April 2009 09:43:12 UTC
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