Severe Storm Outlook Narrative (AC)
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000
ACUS11 KWNS 160320
SWOMCD
SPC MCD 160319
NCZ000-VAZ000-160445-

Mesoscale Discussion 0276
NWS Storm Prediction Center Norman OK
1019 PM CDT Sun Apr 15 2018

Areas affected...Central/Southeast VA...Eastern NC

Concerning...Tornado Watch 54...55...

Valid 160319Z - 160445Z

The severe weather threat for Tornado Watch 54, 55 continues.

SUMMARY...The tornado threat continues across Tornado Watches 54 and
55.

DISCUSSION...Long-lived convective line continues to progress
eastward/northeastward across central VA and eastern NC. Damaging
wind gusts have been reported as this line moves across central NC.
Several supercells also developed ahead of this line across central
VA. Strong wind fields (i.e. 60 kt near 1 km) have been sampled by
the MHX and AKQ VADs, contributing to strong low-level helicity and
shear. Additionally, the airmass remains unstable enough for
continue storm development. As such, the potential for damaging wind
gusts and tornadoes continues along and ahead of the line. Any cells
that develop ahead of the line are particularly favored for updraft
rotation capable of producing a tornado (evidenced by the supercells
across central VA).

..Mosier.. 04/16/2018

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

ATTN...WFO...AKQ...MHX...LWX...RAH...ILM...RNK...

LAT...LON   37677887 38247839 38057723 36767605 34177629 34467827
            36387870 37677887




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