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December Discobs 2019


George BM
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URGENT - WINTER WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
151 PM EST Thu Dec 12 2019

VAZ027>031-039-040-501-507-WVZ050-055-501-502-130300-
/O.NEW.KLWX.WW.Y.0032.191213T1200Z-191213T2000Z/
Shenandoah-Frederick VA-Page-Warren-Clarke-Madison-Rappahannock-
Northern Fauquier-Northern Virginia Blue Ridge-Hampshire-Hardy-
Western Grant-Eastern Grant-
151 PM EST Thu Dec 12 2019

...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM TO 3 PM EST
FRIDAY...

* WHAT...Freezing rain expected. Total ice accumulations of up
  to one tenth of an inch.

* WHERE...The northern Shenandoah Valley of Virginia, the northern
  Virginia Blue Ridge Mountains, and portions of eastern West
  Virginia.

* WHEN...From 7 AM to 3 PM EST Friday.

* IMPACTS...Very slippery sidewalks, roads and bridges are
  possible. The hazardous conditions could impact the morning
  commute.

* ADDITIONAL DETAILS...Freezing rain during the morning will
  gradually change to rain throughout the afternoon.
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URGENT - WINTER WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
151 PM EST Thu Dec 12 2019

VAZ025-026-036>038-503-504-508-WVZ505-506-130300-
/O.NEW.KLWX.WW.Y.0032.191213T0900Z-191213T2000Z/
Augusta-Rockingham-Nelson-Albemarle-Greene-Western Highland-
Eastern Highland-Central Virginia Blue Ridge-Western Pendleton-
Eastern Pendleton-
151 PM EST Thu Dec 12 2019

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 3 PM EST
FRIDAY...

* WHAT...Freezing rain expected. Total ice accumulations of up
  to one tenth of an inch.

* WHERE...Portions of the Potomac Highlands in West Virginia and
  Virginia, and the central Shenandoah Valley of Virginia.

* WHEN...From 4 AM to 3 PM EST Friday.

* IMPACTS...Very slippery sidewalks, roads and bridges are
  possible. The hazardous conditions could impact the morning
  commute.

* ADDITIONAL DETAILS...Freezing rain during the morning will
  gradually change to rain throughout the afternoon.
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SPS for the i95 corridor still

Special Weather Statement
National Weather Service Baltimore MD/Washington DC
155 PM EST Thu Dec 12 2019

MDZ005-503>506-VAZ052-053-055-056-502-506-130100-
Carroll-Northwest Montgomery-Central and Southeast Montgomery-
Northwest Howard-Central and Southeast Howard-
Prince William/Manassas/Manassas Park-Fairfax-Stafford-
Spotsylvania-Southern Fauquier-Eastern Loudoun-
Including the cities of Eldersburg, Westminster, Germantown,
Damascus, Bethesda, Rockville, Gaithersburg, Silver Spring,
Lisbon, Columbia, Ellicott City, Dale City, Manassas, Woodbridge,
Lake Ridge, Montclair, Reston, Herndon, Annandale, Centreville,
Chantilly, McLean, Franconia, Falmouth, Fredericksburg, Turnbull,
Leesburg, Ashburn, and Sterling
155 PM EST Thu Dec 12 2019

...POTENTIAL WINTER COMMUTING HAZARD FOR THE BALTIMORE /
WASHINGTON METRO AREAS FRIDAY MORNING...

There is a potential for hazardous commuting conditions for the
Friday morning commute. A period of freezing rain is POSSIBLE (a
30 percent chance in Carroll County increasing to 50 percent in
Fauquier and Spotsylvania Counties) Friday morning across the
northern and western portions of the Baltimore / Washington metro
areas, which would result in an icy accumulation on area roads.

If this threat does materialize during the Friday morning rush-
hour, many roads could quickly turn icy. This could lead to
dangerous traveling conditions, multiple accidents, and extensive
delays.

If commuting Friday morning, be aware of the POSSIBILITY of
significant travel disruptions. Plan ahead by allowing for extra
travel time, and consider using public transportation and telework
options.

Stay tuned for updates on this potential winter weather episode.
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Forecast update from LWX:

(snip)

NEAR TERM /THROUGH SATURDAY/...
Radar imagery shows leading edge of rain pushing northeastward
through central portions of Bath, Rockbridge, and Amherst
Counties in southwestern Virginia. We have slowed down this
forward progress of rainfall by an hour or two. This leading
edge should enter our CWA counties of Highland, Augusta, and
Nelson Counties around 430am. Temperatures in this region of 28
to 32 degrees would support freezing rain for a few hours after
onset. As this rain moves farther northeast just before and
during daybreak today, temperatures across the metro areas,
eastern and northeast Virginia, and parts of central Maryland
will rise a few degrees to just above freezing. Thus, the
expectation of freezing rain is these areas are minimal to none
through this morning. Areas of greater concern for freezing rain
and ice accumulations are along and west of US 15 from
Frederick County, Maryland, southwest into western Loudoun and
northern Fauquier Counties in Virginia, and all other areas to
the southwest and west. A Winter Weather Advisory remains in
effect for the aforementioned areas through midday or into this
afternoon. Parts of western Maryland and northern West Virginia
could see an ongoing threat for ice accumulations through late
this afternoon. Elevations below 1500 feet would be more
susceptible.

As temperatures modify throughout the day today into tonight, there
will be a transition to plain rain with rain amounts averaging one
half to one inch. The low pressure system responsible for this
wintry weather and soaking rainfall will depart to the northeast
later tonight and Saturday morning. Rainfall will end from south to
north during this period. High pressure will build into the region
Saturday. A shift of wind direction to more of a west-northwest flow
will promote some upslope snowfall later Saturday into Saturday
night. A couple of inches of snow could occur at elevations above
2500 feet.

&&

.SHORT TERM /SATURDAY NIGHT THROUGH SUNDAY NIGHT/...
Upslope snow will continue Saturday night before tapering and ending
Sunday. Cold high pressure will become the flavor Sunday into Sunday
night. Temperatures will be below average. A developing warm front
to our southwest will propagate northward later Sunday night. This
warm front could bring a wave of light snow or perhaps a mix of
snow, sleet or rain to our western and west-central zones.
(snip)
 

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Partially snow covered roofs still quite common in Bowie on the drive to work.

There's a small church that has significant snow on their main roof, as if they were in a different storm than all the neighbors. Finally occurred to me that the nave isn't heated during the week. Probably be gone before Sunday anyway. (Praise the Lord and melt the roof.)

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1 hour ago, GramaxRefugee said:

Partially snow covered roofs still quite common in Bowie on the drive to work.

There's a small church that has significant snow on their main roof, as if they were in a different storm than all the neighbors. Finally occurred to me that the nave isn't heated during the week. Probably be gone before Sunday anyway. (Praise the Lord and melt the roof.)

I was surprised how much staying power my .25" had.  There was still some on the deck last night.

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2 minutes ago, WxWatcher007 said:

You ok bud? Your posts have seemed...down. You know where to find me if you ever need my services :) 

I'm good, I just got fat after surgery so I'm hoping if I post more and eat less I can lose the excess 200lbs I've gained

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URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
459 PM EST Fri Dec 13 2019

DCZ001-MDZ003>006-011-013-014-503>508-VAZ025>031-036>040-050>054-
501-502-505>508-WVZ051>053-140500-
/O.NEW.KLWX.FG.Y.0010.191213T2159Z-191214T0500Z/
District of Columbia-Washington-Frederick MD-Carroll-
Northern Baltimore-Southern Baltimore-Prince Georges-Anne Arundel-
Northwest Montgomery-Central and Southeast Montgomery-
Northwest Howard-Central and Southeast Howard-Northwest Harford-
Southeast Harford-Augusta-Rockingham-Shenandoah-Frederick VA-Page-
Warren-Clarke-Nelson-Albemarle-Greene-Madison-Rappahannock-Orange-
Culpeper-Prince William/Manassas/Manassas Park-Fairfax-
Arlington/Falls Church/Alexandria-Northern Fauquier-
Southern Fauquier-Western Loudoun-Eastern Loudoun-
Northern Virginia Blue Ridge-Central Virginia Blue Ridge-Morgan-
Berkeley-Jefferson-
Including the cities of Washington, Hagerstown, Frederick,
Ballenger Creek, Eldersburg, Westminster, Reisterstown,
Cockeysville, Baltimore, Bowie, Suitland-Silver Hill, Clinton,
College Park, Greenbelt, Laurel, Camp Springs, Glen Burnie,
Annapolis, Severn, South Gate, Severna Park, Arnold, Odenton,
Germantown, Damascus, Bethesda, Rockville, Gaithersburg,
Silver Spring, Lisbon, Columbia, Ellicott City, Jarrettsville,
Aberdeen, Staunton, Waynesboro, Stuarts Draft, Harrisonburg,
Strasburg, Woodstock, Mount Jackson, New Market, Winchester,
Luray, Shenandoah, Stanley, Front Royal, Berryville, Lovingston,
Charlottesville, Stanardsville, Madison, Orange, Gordonsville,
Culpeper, Dale City, Manassas, Woodbridge, Lake Ridge, Montclair,
Reston, Herndon, Annandale, Centreville, Chantilly, McLean,
Franconia, Arlington, Alexandria, Falls Church, Warrenton,
Turnbull, Purcellville, Leesburg, Ashburn, Sterling, Big Meadows,
Wintergreen, Paw Paw, Martinsburg, Charles Town,
and Shepherdstown
459 PM EST Fri Dec 13 2019

...DENSE FOG ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

* WHAT...Areas of dense fog with visibility around one-quarter
  mile.

* WHERE...The Washington and Baltimore Metropolitan areas, central
  Maryland, northern Virginia, portions of central Virginia and
  eastern West Virginia.

* WHEN...Until midnight EST tonight.

* IMPACTS...Hazardous driving conditions due to low visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.

&&

$$
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