ZCZC SPCSWOMCD ALL
ACUS11 KWNS 160059 
SPC MCD 160059 
NEZ000-160230-

Mesoscale Discussion 1300
NWS Storm Prediction Center Norman OK
0759 PM CDT Wed Aug 15 2018

Areas affected...Southwestern Nebraska

Concerning...Severe Thunderstorm Watch 337...

Valid 160059Z - 160230Z

The severe weather threat for Severe Thunderstorm Watch 337
continues.

SUMMARY...Severe hail and locally strong wind gusts may remain
possible another hour or two with isolated storms approaching the
Kansas border, west through southwest of Kearney NE.  Another severe
weather watch is not anticipated.

DISCUSSION...An isolated but sustained supercell continues to track
southeast of the North Platte area, generally along and to the cool
side of a thermal gradient generated by stronger differential
surface heating and convective outflow.  Activity has been
undergoing fluctuations in intensity, but seems likely to finally
weaken as it approaches the Kansas border area (southwest of
Kearney), where the surface boundary will become increasingly
diffuse with the loss of daytime heating.

Otherwise, additional thunderstorm development might not be out of
the question back to the west/northwest of the ongoing storms, in
response to forcing associated with strengthening warm advection
associated with a weak to modest nocturnal low-level jet.  However,
it currently appears that any such activity may remain isolated with
severe hail/wind potential limited enough that another watch is not
anticipated.

..Kerr.. 08/16/2018

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

ATTN...WFO...GID...LBF...GLD...

LAT...LON   40949989 40709926 40339898 40079975 40200099 41180219
            41750239 42080147 41939999 41350005 40949989 

NNNN