MD 1311 CONCERNING SEVERE THUNDERSTORM WATCH 430… FOR NORTHEAST WY INTO SOUTHEAST MT
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
