798
WWUS20 KWNS 061717
SEL8
SPC WW 061717
MTZ000-NDZ000-SDZ000-070100-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 188
NWS Storm Prediction Center Norman OK
1215 PM CDT Mon May 6 2024

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
  Southeast Montana
  Southwest North Dakota
  Central and Western South Dakota

* Effective this Monday afternoon and evening from 1215 PM until
  800 PM CDT.

* Primary threats include...
  Scattered large hail and isolated very large hail events to 2
    inches in diameter possible
  Scattered damaging wind gusts to 70 mph possible
  A tornado or two possible

SUMMARY...An arcing band of strong to severe thunderstorms is
forecast to develop this afternoon across the Watch area.
Small-scale bands and a few supercells are possible and will pose a
risk for mainly severe gusts and large hail.  A tornado or two is
possible, especially where more persistent and stronger
thunderstorms encounter stronger low-level shear.

The severe thunderstorm watch area is approximately along and 120
statute miles east and west of a line from 40 miles east northeast
of Baker MT to 55 miles south southwest of Chamberlain SD. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU8).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 187...

AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
19035.

...Smith