Mesoscale Discussion 1178
NWS Storm Prediction Center Norman OK
0700 PM CDT Fri Jul 10 2020
Areas affected...southern nebraska and northern kansas
Concerning...Severe Thunderstorm Watch 353...
Valid 110000Z - 110100Z
The severe weather threat for Severe Thunderstorm Watch 353
continues.
SUMMARY...The ongoing small cluster of severe storms across southern
portions of WW353 will likely exit the watch within the next 60
minutes. Additional local extensions may be needed given the
possibility for severe wind gusts for the next few hours.
DISCUSSION...The small cluster of storms over southern Nebraska has
produced several reports of wind damage and severe wind gusts over
the last several hours. Most recently, a Nebraska mesonet station
near Kearney recorded a gust to 61 mph at 2320 UTC. These storms are
ongoing in an environment characterized by 2000-3000 J/kg of MUCAPE
and 40-50 kt of effective shear which will likely continue to
support updraft development and organization. Downstream of the
ongoing storms, buoyancy is weaker from earlier convection, which
suggests some uncertainty on storm longevity later this evening.
However, it appears likely that these storms will continue to pose a
threat for severe wind gusts for at least a few more hours as they
move into portions of north/central Kansas. Additional local
extensions, and or a downstream watch maybe needed depending on
convective trends.
..Lyons/Hart.. 07/11/2020
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...TOP...ICT...GID...GLD...
LAT...LON 40019791 40009968 39509933 39139871 39219796 39429738
39949746 40019791
Read morefrom SPC Forecast Products http://www.spc.noaa.gov/products/md/md1178.html
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