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Posted at 10:50 AM ET, 01/ 6/2010

Forecast: Consistent cold continues... any snow?

By Dan Stillman

Minor snow accumulations possible tomorrow night

We apologize for the delay in this morning's forecast post, which was due to technical difficulties across blogs

* Top international weather of '09 | Snow Lover's Crystal Ball *
* Outside now? Temps, clouds & more: Weather Wall *

Today's Daily Digit
A somewhat subjective rating of the day's weather, on a scale of 0 to 10.
4Will the breeziness ever stop? Not today. At least we'll top the freezing mark.
Get tomorrow's 'Digit' on Twitter tonight


Today: Mostly to partly cloudy. Moderate breezes. Mid-to-upper 30s. | Tonight: Partly cloudy. Low-to-mid 20s. | Tomorrow: Increasing clouds. Mid-30s. Chance of snow late. | A Look Ahead | Get Express Forecast by E-mail


The cold weather hasn't been too extreme -- temperatures have yet to dip into the single digits this winter, even in the suburbs. But it has been remarkably consistent: Since Dec. 16, the high temperature at Reagan National Airport has been below normal on 17 of 21 days. The cold pattern is poised to continue right on through the start of next week -- getting even more frigid this weekend -- with a bout of light snow possible tomorrow night.

Temperatures: Current area temperatures. Powered by Weather Bonk. Map by Google. Hover over and click icons for more info. Click and hold on map to pan. Refresh page to update. See map bigger on our Weather Wall.

Today (Wednesday): Mostly cloudy morning skies -- with some flurries or snow showers around -- should give way to some afternoon sun. Highs in the mid-to-upper 30s are about the best we can manage. Winds continue to be a factor, with breezes around 15-20 mph from the west/northwest and occasional gusts to near 30 mph. Confidence: Medium-High

Tonight: A 10-15 mph breeze should mix up the atmosphere enough to keep temperatures from tumbling too far. Lows settle in the low-to-mid 20s under partly cloudy skies. Confidence: Medium-High

Keep reading for the forecast through the weekend....

Tomorrow (Thursday): Another cold day with highs probably only in the mid-30s. A welcome break from those stubborn breezes, though, with winds expected to be light -- around 10 mph or less. Skies likely transition from partly sunny to overcast during the day as our potential snow-maker approaches from the west. Toward evening, some flakes could start to fly. Confidence: Medium-High

Tomorrow Night: Some snow appears likely during the evening and overnight. Accumulation potential looks to be in the range of a dusting on the low end to around 3 inches on the high end. Anything that falls will almost certainly be in the form of snow with lows in the mid-20s and plenty of cold air in place at all levels of the atmosphere. See the Snow Lover's Crystal Ball for a more detailed look at the snow potential. Confidence: Low-Medium


Any snow should finish up Friday morning other than the chance of a few lingering flurries. Not much movement in those temperatures -- highs max out around the mid-30s again with partly to mostly cloudy skies. And as the day goes on, we'll be in line for increasing winds as our quickly departing storm intensifies off the coast. Confidence: Medium

Weekend temperatures go in the wrong direction with highs only in the upper 20s to low 30s even under partly sunny skies. Breezy conditions will add an all-too-familiar chill to the air. Nighttime lows head down to the teens to near 20. Confidence: Medium-High

By Dan Stillman  | January 6, 2010; 10:50 AM ET
Categories:  Forecasts  
Save & Share:  Send E-mail   Facebook   Twitter   Digg   Yahoo Buzz   StumbleUpon   Technorati   Google Buzz   Previous: PM Update: Mostly cloudy, more flurries possible
Next: Still cold, but not too cold for a little snow


Is this a once a day blog now?

We'll have a more detailed look at the snow potential in a Snow Lover's Crystal Ball later this morning....

Hawaiian time.....?

Posted by: gdennie | January 6, 2010 12:38 PM | Report abuse

Welcome back! Who had snow flurries this morning?

Posted by: CapitalWeatherGang | January 6, 2010 12:39 PM | Report abuse

eagerly awaiting the SLCB. any kind of accumulation map would be great...

Posted by: walter-in-fallschurch | January 6, 2010 12:41 PM | Report abuse


Per the comment at the top of the post, all of our publishing got delayed due to a system outage this morning. The Crystal Ball will go up this afternoon.

Posted by: CapitalWeatherGang | January 6, 2010 12:41 PM | Report abuse

"technical difficulties across blogs":

WaPo's crack online IT team continues its 16-year tradition of failure.

Posted by: CapitalClimate | January 6, 2010 12:42 PM | Report abuse

So, what's causing the persistent windy conditions - and how rare is it that we have so many windy days in a row? It's 5 or 6 by my rough count.


Posted by: bodypolitic | January 6, 2010 12:44 PM | Report abuse

Here in Lake Ridge, we had about an hour or so of consistent light snow showers/flurry activity early this morning. Sunny and breezy now.

Posted by: ZmanVA | January 6, 2010 12:55 PM | Report abuse

What do you all think about the clipper? I don't see any negative tilt, so that should mean about an inch of snow, give or take, tomorrow night. Although, the storms have been over-achieving this winter, so perhaps two inches in places.

Flurries this morning at home in Darnestown and at work in Columbia. Nice eye candy.

Posted by: curtmccormick | January 6, 2010 12:59 PM | Report abuse


The wind has been caused by the pressure difference between strong low pressure sitting and spinning in the North Atlantic and high pressure to our west. We have an unusually strong large-scale blocking pattern in the atmosphere which is holding these pressure systems in place -- persistently driving cold air and wind southward.

Posted by: CapitalWeatherGang | January 6, 2010 1:01 PM | Report abuse


Our thinking is similar to yours. Our Snow Lover's Crystal Ball will be up around 2 p.m. where we give our assessment.

Posted by: CapitalWeatherGang | January 6, 2010 1:02 PM | Report abuse

It has been in the single digits in some of our suburbs. Manassas was down to 8 degrees a couple of weeks ago.

Posted by: dcawx | January 6, 2010 1:04 PM | Report abuse

Finally saw a few flakes this morning...after the flurries bypassed my area yesterday.

Was wondering why I only had yesterday's "PM Update" at 11:45 AM today. This has been one of the LONGEST spells of freezing weather and strong northwesterly wind I can recall. I don't think it was this bad for an extended period even during last year's frequent La Nina Arctic we had a lot more flurries last winter.

Posted by: Bombo47jea | January 6, 2010 1:19 PM | Report abuse

Low temps and high winds make for interesting skating on the C & O canal near Carderock! Hoping for snow.

Posted by: rivergirl1 | January 6, 2010 1:23 PM | Report abuse

Wind blowing day after has kept me from striper fishing at 301 Bridge, now it looks like ice is going 2 b the problem.
2-3" of snow would b nice.

Posted by: VaTechBob | January 6, 2010 1:41 PM | Report abuse

Snow covered decks, roofs and streets this a.m. and snowing hard about 8:30 by the Potomac in So MD. The sun came out about 9:30 and that was the end of that!

Posted by: waterfrontproperty | January 6, 2010 2:05 PM | Report abuse

Drove through snow about 8AM heading west on I-66 between 50 and Manassas. More than a flurry, some was sticking to the road.

Seems we've gotten more snow this winter than my Dad, in Cedar city Utah, who usually has to shovel feet of it off of his driveway.

Posted by: wiredog | January 6, 2010 2:10 PM | Report abuse

Is it just me or does it look like (12z run) the low pressure soon to form in south is trending to pull more moisture from gulf & sliding up & off carolina...maybe a snowier trend for us?

Posted by: StormChaserMan | January 6, 2010 2:17 PM | Report abuse

With this Clipper coming across and 1000-500mb thickenss around 520 you are looking at 20:1 snow ratios with this system. Just a little bit of liquid will put down a few inches of snow.

Posted by: pseaby | January 6, 2010 2:50 PM | Report abuse

In my 35 years in DC I can remember the Potomac completely freezing over maybe 3-4 times - how many more days like we've been having would it take to happen again? if it doesn't warm up until the end of next week will that be enough?

Posted by: hohandy1 | January 6, 2010 2:51 PM | Report abuse

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