More Rain

The region has been running at a precipitation deficit since late 2007 and we have finally caught up, at least for the period since January 1, 2008.

Over the past three days, BWI-Marshall Airport has received almost 2.50 inches of rain. Friday’s 1.85 inches of rain was a record for the date. A few areas to the south and east were hit with 3 to 4 inches from the storm and some areas to the north and west received only an inch or less. BWI’s May rainfall totals 2.48 inches as of Saturday, May 10 and is now running 1.30 inches above the 30 year average. For all of 2008, the total is 14.74 inches, a mere .14 inches above the 30 year average.

Yet another storm is brewing and will be moving in late Sunday. Most computer models indicate that some heavy rain is possible. The core of the storm will be passing to the south and the threat of severe weather is diminished around Baltimore. A Flood Watch will go into effect for most of Maryland west of the Bay on Sunday evening. An exceptional outbreak of severe storms over the southeast states could interfere with moisture transport this far north and possibly reduce the amount of rain. We will have to wait and see how all of this plays out Sunday night and Monday morning. Keep the umbrella handy.

John Collins

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