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January 12-13th Cold Smoke Obs and Nowcast


Bob Chill
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Winter Storm Warning

URGENT - WINTER WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
100 PM EST Sat Jan 12 2019

DCZ001-MDZ013-016-504-VAZ036>040-050>057-501-502-505-506-130200-
/O.EXT.KLWX.WS.W.0002.190112T2100Z-190113T2300Z/
District of Columbia-Prince Georges-Charles-
Central and Southeast Montgomery-Nelson-Albemarle-Greene-Madison-
Rappahannock-Orange-Culpeper-
Prince William/Manassas/Manassas Park-Fairfax-
Arlington/Falls Church/Alexandria-Stafford-Spotsylvania-
King George-Northern Fauquier-Southern Fauquier-Western Loudoun-
Eastern Loudoun-
100 PM EST Sat Jan 12 2019

...WINTER STORM WARNING NOW IN EFFECT FROM 4 PM THIS AFTERNOON TO
6 PM EST SUNDAY...

* WHAT...Significant snow expected. Total snow accumulations of
  5 to 10 inches expected.

* WHERE...Portions of northern and central Virginia as well as
  southern Maryland.

* WHEN...From 4 PM this afternoon to 6 PM EST Sunday.

* ADDITIONAL DETAILS...Travel could be very difficult due to
  snow covered and slippery roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency.

When venturing outside, watch your first few steps taken on
steps, sidewalks, and driveways, which could be icy and slippery,
increasing your risk of a fall.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&
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Just now, nj2va said:

Catch up mode means we’re about to get slammed.  

8C6EF1EB-3E37-4691-8A94-4DD6324656A3.png

This storm is a great reminder that it's very hard for models to nail intricate energy transfers. The waa piece is easy. The upper level and surface low progression is complicated. Sometimes it cuts the other way where models at short range lose (or move) the extra lift/precip idea. Appears this one is maxing out. Good luck indeed 

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