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Wednesday September 24, 2008 at 5:29 pm
Strong system heads our way
posted by Alex Liggitt: Producer/Meteorologist


We have had over 2 weeks of quiet weather now but things are going to change rapidly over the next 24 hours.  A strong area of low pressure has developed off the coast of North Carolina and is expected to move into our region tomorrow.  So far, a High Wind Watch has been placed in effect for tomorrow morning through tomorrow evening, and I would imagine either a High Wind Watch or a Wind Advisory will take its place.  Wind speeds of up to 40 mph gusting to 60 mph can be expected to our west where the watch is in place.  Further east towards the immediate DC area, wind speeds will likely be sustained around 20 mph gusting to near 40 mph at times.

Taking a look at the image above, you can see the area shaded in red spanning from New York City down through Maryland and southwest through Virginia and into North Carolina.  This graphic displays wind speeds in knots at 850mb, or nearly 5,000 ft.  With the peaks of the Blue Ridge mountains at or near this level in the atmosphere, you can see why a High Wind Watch was placed in effect for areas to our west!  Even locally however, winds at 925mb (not shown) show a low level jet around 50 knots as well, so some very gusty winds may be possible over the entire region through the day tomorrow.

Here is a graphic from the HPC (Hydrometeorological Prediction Center) which shows the total rainfall from this morning through Monday morning.  The maximum of 5.5 inches is located towards Long Island, CT, RI, and MA where they may have two shots of moisture.  The first being from this system and the next possibly from the remnants of the system that was causing the massive flooding over Hispaniola.  Our region looks to be spared but will still see considerable rainfall with the chance to get over 2 inches through Saturday morning. 

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WHY ISN'T CULPEPER COUNTY IN THE WIND ADVISORY? THE COUNTYS AROUND US ARE BUT NOT US WHY/

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