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000
ACUS11 KWNS 080207
SWOMCD
SPC MCD 080207
TXZ000-080400-

Mesoscale Discussion 1784
NWS Storm Prediction Center Norman OK
0807 PM CST Thu Dec 07 2017

Areas affected...South-central TX

Concerning...Heavy snow

Valid 080207Z - 080400Z

SUMMARY...Narrow band of moderate snow with rates near 1"/hr that
has affected areas from Austin to College Station should gradually
shift east and weaken by midnight.

DISCUSSION...Ongoing 10-20 mile wide band of moderate snow has
yielded snowfall accumulations of 1-2" from Austin to College
Station over the past 90-120 minutes. Latest RAP and HRRR guidance
suggest that substantial drying in the 850-700 mb layer, sampled
well by the 00Z Fort Worth sounding, should lead to the demise of
this band over the next 2-3 hours. Until that occurs, snowfall rates
of 0.5-1.0"/hr will probably be maintained for another tier of
counties east of the ongoing band, roughly from Gonzales to
Washington/Grimes counties.

..Grams.. 12/08/2017

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

ATTN...WFO...HGX...EWX...

LAT...LON   29609827 29949766 30449684 30799623 30889587 30669574
            30519589 30129644 29629725 29449765 29319791 29349816
            29399834 29609827



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