Monday, December 20, 2004

12/20 DC/MD/VA Weather Outlook

No one has any doubts about it. It is cold! As cold or colder than it gets most of the season for us! And tomorrow is really the first day of Winter on the shortest day of the year! Still interested in peopleƂ’s experiences yesterday as the snow came through. Thundersnows occurred, and some areas did see a few inches of snow, especially east of the I-95 Corridor, even down in NC where 3 inch amounts were reported!! One Day of frigid temps and then changes start occur. A few things this week are different than what was showing last week. First off, we have a very significant rainstorm that looks like it will hit us Thursday. Would not be surprised if many areas see as much as 2 inches of rain. Much cooler air will arrive Friday into Saturday, and then snow still looks to be a concern, especially Virginia, and especially the southeastern 2/3rds of Virginia (Could snow all the way down to SC/NC and be very heavy!!) Snow could occur area wide, but the northern and western extent will be hard to come by due to a very frigid and dry airmass to the north. Many details between now and then, so do not get over concerned.

 

Summary:

A very arctic shot was pulled in by the storm yesterday. It is a short lived cold pool as temps begin to rebound quickly in a very progressive pattern. Progressive is a key in this week! Temps will moderate to normal levels tomorrow, above normal Wednesday and Thursday, and normal to just below for the weekend. A front will be moving towards us and stall along the spine of the Appalachians at which time a strong Gulf of Mexico low will ride up the front and bring very warm air and a lot of rain to the area! Some upslope mountain areas could easily see greater than 2 inches of rain. Once the front crosses the area, there is a growing threat that another storm will form along it over the Gulf of Mexico and ride up the Southeastern US coastline. With the colder air arriving, it is very possible this could be a significant, Christmas Day, Snow for areas especially east of I-95 from about Fredericksburg all the way down to South Carolina! YES.. South Carolina! But, there are many details between now and then that need to be considered!

 

Today: SW: 20-25 SE: 20-25 N: 18-24

Very cold and windy! Wind chills sub zero mountains, single digits to teens east of the mountains

 

Tuesday: SW: 45-55 SE: 45-55 N: 40-50

Increasing clouds and much warmer! Seasonal temperatures expected!

 

Wednesday: SW: 45-55 SE: 45-55 N: 45-55

Cloudy skies. Rain now looks to hold off until Thursday! Above Normal Temperatures!

 

Thursday: SW: 50-60 SE: 50-60 N: 45-55

Rain! Some Thunder possible, and rain could be heavy at times!

 

Friday: SW: 40-50  SE: 40-50 N: 35 -45

Cloudy. Snow showers possible in the North. Temps much colder.

 

Long Term:

Christmas weekend looks very cold and there is a possibility of a significant snow storm, as mentioned above, especially Southern/Southeastern VA! Many details need to be worked out!

  

All for now!

 



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