[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 100330
SWOMCD
SPC MCD 100330
TNZ000-KYZ000-MOZ000-ARZ000-OKZ000-100500-

Mesoscale Discussion 0282
NWS Storm Prediction Center Norman OK
0930 PM CST Thu Mar 09 2017

Areas affected...Eastern OK...Northern AR...Western TN

Concerning...Severe Thunderstorm Watch 71...73...

Valid 100330Z - 100500Z

The severe weather threat for Severe Thunderstorm Watch 71, 73
continues.

SUMMARY...Threat for hail and damaging wind gusts will persist
across the region for the next several hours.

DISCUSSION...Structure of the regional radar data suggests the
linear transition of the previously cellular convection is complete
with an unbroken line of thunderstorms now extending from eastern OK
across northern AR and into western TN. Most progressive part of the
line is across western TN where the more orthogonal orientation of
the convection promotes more downwind propagation.  Farther west,
the line is still moderately progressive, aided by the northwesterly
flow aloft and the southeastward progressing cold front. As such,
some wind threat will persist for the next few hours, although the
increasingly stable low-level airmass suggests the primary severe
threat will remain large hail. This hail threat supported primarily
by steep mid-level lapse rates (as sampled by the 00Z LZK sounding)
and strong bulk shear.

..Mosier.. 03/10/2017

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

ATTN...WFO...OHX...PAH...MEG...LZK...TSA...OUN...

LAT...LON   35079339 35039625 35449691 36089499 36449156 36448925
            36558774 35288825 35079339

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