From the ABC 7 Weather team

D.C. Forecast: A thaw this weekend before an Arctic blast arrives

January 4, 2014 - 11:52 AM
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Today will be sunny and not quite as frigid with most temperatures just above freezing.  For Sunday, some freezing rain should change to all rain with highs around 40. 

This Afternoon:
Sunny & Not as Frigid
Highs: 30-35
Wind: S 10-15 mph
Tonight:
Increasing Clouds, Freezing Drizzle Poss.
Lows: 18-27
Precipitation: Freezing Drizzle
Sunday:
Freezing Drizzle Changes to Rain
Highs: 38-43
Precipitation: 70% Chance

Winds are lighter today, but the consequent lessening of wind chill does not alter the fact that it is still icily cold out there!  Readings in the twenties are making for the coldest numbers this season.  Still, even with the snow pack working to hold temperatures down, a southerly wind today and abundant sunshine might be enough for many areas to rise to just above the freezing point.  With no wind gusts like the peak 46 mph gust at Reagan National yesterday to whip the snow around and depress the apparent temperatures, today will feel just a bit milder than Friday. 

As high pressure moves away this afternoon, clouds will increase and a system to our southwest could bring some freezing drizzle to the area just before dawn on Sunday.  Temperatures are expected to rise throughout the day tomorrow, changing any frozen precipitation to all rain.  Highs on Sunday could approach 40.  A mix of rain and snow is likely early on Monday when highs should reach 40 at midday before plummeting throughout the afternoon.  A large pool of very cold air from the North Pole, a so-called "polar vortex," will arrive with brutal effect Monday night.  Temperatures will drop to the single digits and wind chill values to as low as -10 degrees.  Tuesday will likely be the coldest day since back in January, 1994 as the "highs" will be in the mid teens.  Wednesday will be milder and Thursday and Friday will see highs in the low 40s with showers possible.  So after two relatively mild and nearly snow-less winters, it seems this coldest of seasons is making up for lost time!  Stay warm and well.   

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