Severe Storm Outlook Narrative (AC)
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201
ACUS11 KWNS 161309
SWOMCD
SPC MCD 161309
TXZ000-161615-

Mesoscale Discussion 0028
NWS Storm Prediction Center Norman OK
0709 AM CST Tue Jan 16 2018

Areas affected...south central into a portion of southeast Texas

Concerning...Freezing rain

Valid 161309Z - 161615Z

SUMMARY...Light freezing rain with rates up to .02 inches per hour
mixed with some sleet at times will likely persist next few hours
from south central into a portion of southeast Texas. The corridor
of freezing rain should slowly shift southeast with time.

DISCUSSION...Early this morning an arctic front has pushed into deep
south TX with temperatures falling into the upper 20s F farther
north across south-central TX. RUC sounding and VWP data indicate
this front is less than 1 km deep with a pronounced warm nose around
850 mb. A shallow convective layer is also evident between 850 and
700 mb. Frontogenetic forcing in the 900-700 mb layer with weak
isentropic ascent will continue to promote the development of patchy
showers this morning with freezing rain being the primary concern.
Some of the freezing rain may mix with sleet and change to snow
before ending from the west as the deeper cold air spreads southward
with time.

..Dial.. 01/16/2018

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

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

LAT...LON   30079786 30039684 30189552 29689506 28899667 28649875
            29120047 30119995 30079786




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