SPC MD 1899

MD 1899 CONCERNING SEVERE THUNDERSTORM WATCH 519… FOR PARTS OF EASTERN TN…NORTHERN AL…AND FAR NORTHWEST GA

Mesoscale Discussion 1899
NWS Storm Prediction Center Norman OK
0324 AM CST Sun Dec 18 2016

Areas affected...Parts of eastern TN...northern AL...and far
northwest GA

Concerning...Severe Thunderstorm Watch 519...

Valid 180924Z - 181030Z

The severe weather threat for Severe Thunderstorm Watch 519
continues.

SUMMARY...WW may be canceled early (prior to 11Z) across eastern TN,
northern AL, and far northwest GA as low-topped convection undergoes
further weakening.

DISCUSSION...Trends in infrared satellite imagery showed warming
cloud tops from middle TN to central MS.  This combined with a great
reduction in lightning and recent wind gusts with the low-topped
convection being sub-severe suggests the overall severe-weather
threat should continue to wane, such WW 519 may be canceled prior to
11Z.

..Peters.. 12/18/2016

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...MRX...JKL...FFC...OHX...BMX...HUN...

LAT...LON   33558764 34908614 36208465 36598414 36588331 35898373
            35278446 34568511 34118591 33748655 33508721 33558764 

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from SPC Mesoscale Discussions http://bit.ly/2hI1HR8