Forecast for May 17, 2011

Today:
The United States is locked into a blocking pattern this week. A blocking pattern is a formation of systems that keeps them from moving. Right now we are in an omega block and an upper level low will be keeping us with showers and storms for the next couple of days before the Omega Block finally breaks down. Highs will be in the low 70s with light east winds.

Tonight:
Periods of showers will continue across the entire Eastern Seaboard. Lows will only drop to near 60 due to the thick clouds and high levels of moisture that will be across DC.

Wednesday through Saturday:
Periods of Showers and Thunderstorms will continue on Wednesday before chances slowly diminish on Thursday. By Friday morning the rain should all be over but we'll have cloudy skies. Temperatures through the period will gradually warm back into the upper 70s. The sunshine looks to finally return by Saturday afternoon.

Flier:
 

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