What a nice day today across Delmarva with sunshine and highs ranging from 55-60 degrees. Today would have been a good day to wash your car and get rid of the salt residue from Thursday morning. However, some changes are taking place right now, at least with the temperatures. Right now we have a weak and dry cold front sliding across the mid-Atlantic. It is moving very slowly tonight but will push off the coast early Saturday morning. Current temperatures right now on the shore are in the 40's but West of the Appalachians, temps are in the 20's. By tomorrow, cold air will work its way to the coast with highs only in the 30's and 40's. High pressure will dominate the mid-Atlantic tomorrow keeping us dry and sunny.
On Sunday a large storm system will develop over the South Central U.S. and track into the Ohio valley. There may be some sunshine through early afternoon on Sunday, then clouds will increase through the night. Highs on Sunday will rise into the 50's later in the day. Right now it looks like the rain showers will begin late Sunday night and continue through Monday afternoon. As with most of the big storms this Winter season, strong southerly winds will develop and mild air will move into Delmarva as the storm approaches. Highs on Presidents' Day will be in the 50's and even some 60's are possible if the low level Southerly flow is strong enough. Right now models are not in agreement on rainfall amounts. The GFS model is showing around .40 inches of rain while the WRF model is showing anywhere from .50 - 1.50 inches across Delmarva. I'm sure these amounts will change a bit in the next few model runs but the WRF model did a better job on rain amounts with last Wednesday's rain amounts. Have a great Holiday Weekend!
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