MD 1452 CONCERNING SEVERE THUNDERSTORM WATCH 456… FOR PORTIONS OF WESTERN NEBRASKA
Mesoscale Discussion 1452
NWS Storm Prediction Center Norman OK
0329 AM CDT Fri Jul 07 2023
Areas affected...portions of western Nebraska
Concerning...Severe Thunderstorm Watch 456...
Valid 070829Z - 070930Z
The severe weather threat for Severe Thunderstorm Watch 456
continues.
SUMMARY...Locally strong gusts may persist another or so before the
severe threat diminishes with eastward extent.
DISCUSSION...An organized, likely elevated, line of convection is
expected to continue developing eastward through early morning.
Locally strong gusts may accompany this convection in the short term
as storms traverse an environment characterized by modest
instability and moderate vertical shear. A 30-40 kt southerly
low-level jet and sufficient instability will likely maintain
convection through early morning. However, low-level inhibition and
weakening instability with eastward extent should limit severe
potential beyond 09-10z. As a result, a downstream watch is not
expected once WW 456 expires at 09z.
..Leitman.. 07/07/2023
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...LBF...
LAT...LON 42570110 42489995 41929976 41559997 41420052 41420134
41530194 41830200 42500137 42570110
