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Posted at 3:15 PM ET, 01/19/2010

PM Update: Mild air to trend cooler

By Ian Livingston

Still watching wintry threat late Wed. thru Fri.

* Making sense of the late-January thaw | CWG Turns 2! Comments? *
* Outside now? Temps, winds & more: Weather Wall *

The area has been treated to another fairly beautiful and quite mild mid-winter day as highs rise to the mid-and-upper 50s most spots. While the weather looks to remain tranquil through tomorrow, temperatures will be back on the downswing, though still milder than normal for now. Then things potentially get interesting.

Webcam: Latest view of D.C. from the Netherlands Carillon at Arlington National Cemetery. Courtesy National Park Service. Refresh page to update. See this image bigger on our Weather Wall.

Through Tonight: Partly cloudy skies early trend clearer overnight. Temperatures will fall to lows in the low-and-mid 30s. Winds are light from the northwest.

Tomorrow (Wednesday): Another calm day is coming up on Wednesday, but it will be a bit cooler than the past few. Look for mostly sunny skies with temperatures rising into the mid-and-upper 40s. Light northwest winds continue, though they may be a bit gusty here and there during the afternoon.

See Matt Rogers' full forecast through the week. And if you haven't already, join us on Facebook and follow us on Twitter.

Haiti weather: The Miami Office of the United States National Weather Service has created a weather support page to provide weather conditions and forecasts for Haiti and the surrounding Caribbean in the wake of the recent earthquake. According to the WMO Office for North America, Central America and the Caribbean, based in Costa Rica, meteorological operations in the Port-au-Prince International Airport by the national meteorological services are reported to be down. The airport is closed for commercial flights and the U.S. Army is provisionally preparing the METAR and TAF messages for humanitarian flights. METAR and TAF are concise textual formats used for transmitting weather reports and forecasts for aviation purposes. This meteorological information is essential for flight safety.

By Ian Livingston  | January 19, 2010; 3:15 PM ET
Categories:  Forecasts  
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Next: Forecast: Wintry pattern makes a comeback


Just posted this in the a.m. thread, but temps really shot up today. Leesburg at 62 @ 3pm.

With the past 5 days being relatively warm, won't this have an impact on a storm that appears to be bringing marginal temps and light precip for wintry accumulations? I would think roads may be unaffected by this event.

Posted by: ThinkSpring | January 19, 2010 3:20 PM | Report abuse

I was prepared for 50 degrees today; I wasn't prepared for 60 . Feels hot outside! Really don't like it when it's below freezing in the morning so you have to wear a coat and gloves, but then by the afternoon you're sweating, have to carry your outerwear around with you and roll up your sleeves.

Posted by: HenryFPotter | January 19, 2010 4:18 PM | Report abuse

ThinkSpring, a countering factor to consider is the recent rains washing the salt off the roads.

Posted by: spgass1 | January 19, 2010 4:44 PM | Report abuse

18Z NAM calls for 3-6 inches of snow on Friday. 18Z GFS also calls for snow, but probably less than an inch.

Posted by: bdeco | January 19, 2010 5:44 PM | Report abuse

NWS "at a glance" update:

fang cloud for thursday! 80% chance of lollipops for friday...

Posted by: walter-in-fallschurch | January 19, 2010 6:02 PM | Report abuse

@ walter-in-fallschurch, the NWS icons crack me up. I love the fang clouds. Your observation of lollipops made me laugh as well.

Posted by: Snowlover2 | January 19, 2010 7:22 PM | Report abuse

Even if it snows Thur nite - Fri, mild temps on the weekend will quickly melt away any accum. Jan is now averaging -.9 degrees. Still looks like the mon. will finish about -.5 to average.

Posted by: VaTechBob | January 19, 2010 10:49 PM | Report abuse

I believe I heard some very light drizzle outside east of Front Royal. Current temp=37.2

Concerning the rest of the week, I watched the NAM animation and it keeps the freezing rain and sleet to the SW. But per NWS, NAM is not the preferred model for this event. Personally, I would much rather see snow than freezing rain. Anxious for tomorrow's CWG forecast.

Posted by: spgass1 | January 19, 2010 11:27 PM | Report abuse

0z is showing a colder solution but almost an entire miss to south and east. Looks like pretty much a non event now.

Posted by: snowlover | January 20, 2010 2:37 AM | Report abuse

We've had a bit of drizzle here in Gaithersburg for the last half hour or so.

Posted by: hawknt | January 20, 2010 3:28 AM | Report abuse

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