Update: Temperatures Rising Above Freezing
A Winter Weather Advisory remains in effect until noon N & W of DC. However, all observing stations south and east of western Loudoun county and Frederick county indicate temperatures are above freezing. At 9am, the only official observing stations in the area still at or below freezing were Winchester, VA and Frederick and Hagerstown, MD. Initial reports from the National Weather Service indicate a light glaze of ice has accumulated mostly north and west of Fairfax and Montgomery counties (although spotty reports of ice occurred within these counties).
Outlying areas that are below freezing now will rise above freezing in the next several hours. Closer in, rain will continue, heavy at times, through the afternoon.
For the full forecast, see Camden's post below.
By
Jason Samenow
| February 1, 2008; 9:06 AM ET
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Posted by: Uncle Dak | February 1, 2008 9:32 AM | Report abuse
Just heard rumble of thunder in Germantown.
Posted by: Rob-Rockville | February 1, 2008 9:52 AM | Report abuse
Thunder in Gaithersburg @ 0951 EST
Posted by: Mot | February 1, 2008 9:55 AM | Report abuse
No ice at all Accotink Lake/Mixing Bowl/West Springfield.
But a very wet wait for the bus!
Posted by: Bikerjohn | February 1, 2008 9:56 AM | Report abuse
At 9:40, the NWS is reporting "Heavy Snow" at Leesburg. Can anyone confirm this? (I am in DC right now).
Posted by: brownlab | February 1, 2008 10:02 AM | Report abuse
At 9:40, the NWS is reporting "Heavy Snow" at Leesburg. Can anyone confirm this?
Posted by: Brownlab | February 1, 2008 10:03 AM | Report abuse
heavy rain this morning in capitol hill...
Posted by: madison | February 1, 2008 10:06 AM | Report abuse
Brownlab, I'm just east of Leesburg and it's nothing but rain here, and 32F.
Posted by: Donna | February 1, 2008 10:08 AM | Report abuse
I'm trying to get to West Virginia today (Skiing), and am worrying about ice up in the mountains. Should I just wait till much later in the day, or even tomorrow?
Posted by: Traveler | February 1, 2008 10:09 AM | Report abuse
1" in the rain gauge already here in Mount Vernon.
Posted by: Etta | February 1, 2008 10:12 AM | Report abuse
Live from the LoCo Bootheel, its 33 with .71 of liquid...and .10 ice on my car and closer to .20 on the vegetation. The sidewalks and roads seem ok. Rain is heavy and just had a burst of sleet. I would call today "Groadie". Baby ARC gives it three dirty diapers. Picked a good day to work at home.
Posted by: Dulles ARC | February 1, 2008 10:13 AM | Report abuse
Traveler: I wouldn't either bother going skiing this weekend if it has rained up in dim dar hills of West Virginny. The conditions would be bullet proof ice.
Brownlab: That's what we get when the weather service removes human observations and installed the ASOS automated system, sometimes the sensor can't tell if it is rain, sleet, snow or bird poo!
Posted by: Nader | February 1, 2008 10:26 AM | Report abuse
Interesting. Thanks.........
Posted by: Brownlab | February 1, 2008 10:38 AM | Report abuse
That Maryland thunder could be from cloud/cloud strikes. No cloud/ground strikes north of the SC--FL area appear on Canadian, HazardPredictor or StrikeStar.
Is there any lightning detection site for cloud/cloud lightning? All the sites I can access appear to limit themselves to cloud/ground. I've never had it confirmed that thunder from cloud/cloud is audible on ground but my guess is that it should be. Would appear delayed in time from visible flash (if visible is observed); you would use time-honored distance count (5 sec./mile distant) to gauge your distance from the strike. Possibly the only detection tool for cloud/cloud is AM band "sferics". This method cannot distinguish cloud/cloud from cloud/ground strikes, however.
Posted by: El Bombo | February 1, 2008 10:38 AM | Report abuse
Here in the Valley at 10:30, I have 31 degrees with freezing rain continuing. highways are 50% ice and 50% clear. Trees, power lines, lawns etc. have .25-.40" of ice. Snowboarding on ice may be popular by some in this area this morning!
Posted by: Augusta Jim | February 1, 2008 10:42 AM | Report abuse
My guess is that cloud to cloud can be detected, but is not important enough so it isn't done i.e. serves no public safety role etc.
Posted by: Nader | February 1, 2008 10:42 AM | Report abuse
Traveler: I think you can go to WV today. Most of the icy weather should end by early this afternoon. While there could be some snow showers in mountains this evening, not a huge deal.
Posted by: Jason, Capital Weather Gang | February 1, 2008 11:22 AM | Report abuse
A rumble of thunder in NW Montgomery about 10:30. Precip so far is 1.01 and the temp is 33.4
Posted by: JT | February 1, 2008 11:37 AM | Report abuse
At noon I have 32 degrees with freezing rain continuing. Tree damage is beginning to occur!!
Posted by: Augusta Jim | February 1, 2008 12:12 PM | Report abuse
Thanks for the update Jim, leaving DC about 45 minutes....not sure what I'll find going up the mountain! Advisories gone as of noon.
Posted by: Mike from the Blue Ridge | February 1, 2008 12:14 PM | Report abuse
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