Archive for December 12, 2009

ANOTHER LOW PRESSURE SYSTEM FROM THE GULF OF MEXICO WILL BRING RAIN TO HAMPTON ROADS… AFTER A CHILLY START TO YOUR SATURDAY, MILDER AIR WILL BE MOVING IN

Saturday is starting out very cold here in Hampton Roads. My home thermometer read 28 degrees this morning.┬áMuch colder temperatures were recorded just west of Hampton Roads. High pressure right over the Mid-Atlantic states will keep us dry through Saturday evening. Due to the winds being on the light side, it really won’t feel that bad outdoors. However, clouds will begin to increase later Saturday as yet another low pressure system develops along the Gulf Coast. The track of this low should take it very close to Hampton Roads on Sunday. This means that warm air will be drawn northward due to the counter-clockwise wind flow around low pressure areas in the Northern Hemisphere. There could actually be quite a contrast in temperatures across the region on Sunday with the warmest readings right along the coast and to the south over NC. Rain will overspread the region later Saturday night and will last through part of Sunday. The precipitation could start out as sleet or even some wet snowflakes in our northern and western regions. As the warm air surges in and instability increases somewhat, thunder is even possible. I think that that is more likely well to our south where the heavier convection will most likely develop. At this time, forecasters are only predicting about a half inch of rain here locally, with higher amounts in some spots. Monday looks fair with seasonal temperatures. There really isn’t any bitter cold air following this low pressure area. The next chance for precipitation won’t be until later Tuesday, when a cold front will be approaching the area. Check back in on Sunday for an update.

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