From the ABC 7 Weather team

Archive for January 2013

Timelapse of watches and warnings across the U.S. in 2012 (Video)

January 3, 2013 - 03:00 PM
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The Storm Prediction Center shared a cool animation on their facebook page today showing all of the storm based Tornado and Severe Thunderstorm Warnings from 2012. All of the Tornado Warnings are shaded in red and the Severe Thunderstorm Warnings are shaded in blue. I thought it was interesting to see just how quiet the D.C. area was even through the months of April and May before some of the bigger systems came through during the summer months (ahem, derecho).

Here's the animation:

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2012 Warmest on Record for Washington D.C.

January 2, 2013 - 08:31 AM
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Reagan National Airport recorded its warmest year on record in 2012 with an average temperature of 61.5 degrees. This was an exceptional 3.3 degrees above average for the year compared to the 1981-2010 climate normals. Reagan was not alone either as Dulles Airport recorded its warmest year on record and BWI Thurgood Marshall recorded its third warmest year on record. The average temperature would be comparable to the normal annual temperature in Atlanta, Oklahoma City and San Jose.

*A huge thank you to the team over at the National Weather Service in Sterling, VA for putting all of this information together. You can find the original public information statement here. They always do a fantastic job at getting this climate information together in a timely matter so we can forward it along to the public.

The area had its warmest spring on record with temperatures 5.7 degrees above normal for the period which included the warmest March on record with a temperature departure of 10 degrees above normal! Below is a look at each month in 2012, its average temperature, temperature departure from normal, and the ranking of each month (e.g. 1 for March means it was the warmest March on record).

2012 temperatures by month at Reagan National Airport

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Happy New Year! What January 2013 Weather in D.C. Will Bring

January 1, 2013 - 05:00 AM
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I can't believe a New Year is upon us!  2012 was a year of many weather records, especially in D.C.  As we open the new calendars, this first day of  January '13, what does the weather for the month bring?  Well, it's hard enough forecasting a week in advance, let alone a full month, but climatologically, this is what January brings:

The average high temperature for the month is about 43°, but this first week is going to be colder than average!  Highs will barely reach the 40 degree mark!   Even though the month will start off cooler than average, there are signs that milder air may build in for the middle and end of the month.  The Climate Prediction Center's January temperature outlook is milder than average across much of the country. 

Climate Prediction Center

Are you a snow lover wishing for snow to start off the New Year?  Well, there's no sign of any major weather systems that could bring snow within the next week, but climatalogically speaking, January picks up a little over 5 and a half inches of snow (I know I'm hoping we are near or above average!).   According to the Climate Prediction Center's precipitation outlook for January, the odds are not in my favor for a very snowy (or wet) January.

Climate Prediction Center

There are many variables that go into long range forecasting, so it's very hard to determine so early in the month what the rest of January will hold.  These forecasts and climate statistics are good to look at, but hold no definite to what will actually occur. 

Hopefully, regardless of the weather, the New Year brings you health, happiness, and prosperity!

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