Severe Storm Outlook Narrative (AC)
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ACUS11 KWNS 172355
SWOMCD
SPC MCD 172355
MTZ000-WYZ000-180130-
Mesoscale Discussion 1311
NWS Storm Prediction Center Norman OK
0655 PM CDT Mon Jun 17 2024
Areas affected...Northeast WY into southeast MT
Concerning...Severe Thunderstorm Watch 430...
Valid 172355Z - 180130Z
The severe weather threat for Severe Thunderstorm Watch 430
continues.
SUMMARY...Some threat for isolated hail and strong/severe gusts will
continue this evening.
DISCUSSION...An earlier supercell over southeast MT has weakened
upon moving into a cooler and less unstable environment. However, a
couple stronger cells are ongoing this evening from extreme
southeast MT into northeast WY, and additional storm development and
intensification remains possible as a vigorous mid/upper-level
shortwave trough approaches the region from the interior Northwest.
Weak to moderate buoyancy and effective shear of 50+ kt will
continue to support occasional supercell structures, with a threat
of isolated hail and strong/severe gusts. The eastern extent of the
short-term severe threat will continue to be limited by strong
MLCINH.
..Dean.. 06/17/2024
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...UNR...BYZ...RIW...
LAT...LON 43750633 45800549 46070475 45810438 45250431 44390447
43990476 43710515 43560596 43750633