MD 1972 CONCERNING SEVERE THUNDERSTORM WATCH 643… FOR EASTERN MONTANA/WESTERN NORTH DAKOTA
Mesoscale Discussion 1972
NWS Storm Prediction Center Norman OK
1113 PM CDT Wed Aug 21 2024
Areas affected…eastern Montana/western North Dakota
Concerning…Severe Thunderstorm Watch 643…
Valid 220413Z – 220545Z
The severe weather threat for Severe Thunderstorm Watch 643
continues.
SUMMARY…Severe threat continues to gradually diminish across
eastern Montana/WW 643.
DISCUSSION…Over the last couple of hours, a noted/gradual decrease
in convective coverage — and particularly intensity — has
occurred, as the low-level airmass gradually stabilizes. While
convection will likely linger over the next couple of hours,
including a stronger storm or two at times capable of producing
marginally severe hail and/or wind, new WW issuance is not
anticipated. As storms move eastward into North Dakota with time,
WW 643 will likely be able to be cancelled prior to its scheduled
22/07Z expiration.
..Goss.. 08/22/2024
…Please see www.spc.noaa.gov for graphic product…
ATTN…WFO…BIS…UNR…BYZ…GGW…
LAT…LON 49000430 48990278 47380222 46400279 45890399 46060468
48000518 49000430
