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  1. 0.1" in Arlington, sidewalks starting to be covered, The Hill of Doom still wet.
  2. Special Weather Statement National Weather Service Baltimore MD/Washington DC 248 AM EST Sun Feb 21 2021 District of Columbia-Frederick MD-Carroll-Northern Baltimore- Cecil-Southern Baltimore-Prince Georges-Anne Arundel-Charles- Northwest Montgomery-Central and Southeast Montgomery- Northwest Howard-Central and Southeast Howard-Northwest Harford- Southeast Harford-Prince William/Manassas/Manassas Park-Fairfax- Arlington/Falls Church/Alexandria-Stafford-Spotsylvania- Northern Fauquier-Southern Fauquier-Western Loudoun- Eastern Loudoun- ...POTENTIAL WINTER COMMUTING HAZARD FOR THE BALTIMORE / WASHINGTON METRO AREAS MONDAY MORNING... There is a potential for hazardous commuting conditions for the Monday morning commute. A period of snow is POSSIBLE (a 40 percent chance) before the Monday morning rush hour ends across the Baltimore / Washington metro areas with up to an inch accumulation on area roads. The area with the highest risk of snow arriving before rush hour ends is northwest of Interstate 95. (snip)
  3. The winds in Arlington are toppling trash carts and sending stuff up The Hill of Doom.
  4. And it still may not this weekend: LWX hourly charts estimate lows of about 23-24 before reheating.
  5. If one believes LWX, it's currently calling for 0.3 of decorator snow at DCA, to then be warmed and washed away by rain.
  6. And now there have been two salt trucks, and a third just spread sand too. I guess they are worried that vehicles will slide helplessly downhill and try to take out the I-395 wall.
  7. The Hill of Doom in Arlington had two plow trucks going uphill, plowing in my side of the street. I wondered what pull some neighbors on the other side have with the county. But then a third truck went down the hill and plowed them in...
  8. I measured 0.9" of sleet on my cartop in Arlington VA.
  9. Just measured 0.3" of pure sleet in Arlington VA.
  10. Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 920 AM EST Thu Feb 18 2021 (snip) .NEAR TERM /THROUGH TONIGHT/... 9:15 AM UPDATE: Significant changes to the snowfall forecast since the previous update. Warm air aloft has moved into the region very quickly, albeit a very small layer that can be seen in the 12z IAD RAOB. The warm layer is between 850-775mb, with a max temp of around 1.5 C. Unfortunately for snow lovers, that is all it really takes to change snow to sleet. This has drastically reduced snow totals, as the heavier rates have yet to overcome that small warm layer, which is somewhat surprising. Very sharp gradient, with highest snow totals along/north of I-70 and along/west of I-81. Have even seen some freezing rain creep into the forecast area much earlier than anticipated, which is rather concerning. The general synoptic setup is no different than previously described, with high pressure to our northeast, and low pressure sliding by to our south. The warm advection aloft just won out today, resulting in the lower totals thus far, as sleet just doesn`t accumulate at the same rate as snow. That being said, the impacts are the same, with sleet/freezing rain leading to hazardous travel conditions across the region. So, just because snow totals haven`t panned out in some places this morning, still exercise caution when going out and about today.
  11. Just before 5 PM, I measured about 0.2" of icy accumulation in Arlington, of which half was sleet and half frozen rain , all frozen together in a sheet on my car. I didn't dare go further out to measure my driveway, too icy. My bushes have ICICLES!
  12. URGENT - WINTER WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 156 PM EST Sat Feb 13 2021 District of Columbia-Prince Georges-Anne Arundel- Northwest Montgomery-Central and Southeast Montgomery-Madison- Rappahannock-Culpeper-Prince William/Manassas/Manassas Park- Fairfax-Arlington/Falls Church/Alexandria-Northern Fauquier- Southern Fauquier-Eastern Loudoun- 156 PM EST Sat Feb 13 2021 ...ICE STORM WARNING IN EFFECT UNTIL 7 AM EST SUNDAY... * WHAT...Two to three tenths of an inch of sleet and freezing rain causing significant icing impacts. * WHERE...The District of Columbia, and portions of central Maryland and northern Virginia. * WHEN...Until 7 AM EST Sunday. * IMPACTS...Difficult travel conditions. * ADDITIONAL DETAILS...Roadways are becoming very icy and dangerous. Avoid all unnecessary travel.
  13. NWS radio just issued ISW for DC and surroundings until 7 am.
  14. In Arlington, looks like a dusting of snow (or is it sleet??)) has fallen atop the ice and sleet, turning my driveway white. Sidewalks starting to go too, but the salted street is wet.
  15. Arlington just re-salted The Hill of Doom. I just put out the last easy-to-use snowmelt on the sidewalk leading up to my door. A trace of ice on cartops, pavement still wet. And a few bits of sleet bouncing.