276
WWUS20 KWNS 180340
SEL1
SPC WW 180340
NDZ000-SDZ000-181100-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 431
NWS Storm Prediction Center Norman OK
1040 PM CDT Mon Jun 17 2024

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
  South-central and east-central North Dakota
  Central and northern South Dakota

* Effective this Monday night and Tuesday morning from 1040 PM
  until 600 AM CDT.

* Primary threats include...
  Scattered damaging winds and isolated significant gusts to 75
    mph possible
  Scattered large hail and isolated very large hail events to 2
    inches in diameter possible

SUMMARY...Increasingly organized thunderstorms are expected to grow
in coverage and move northeastward across the watch area over the
next several hours.  Though north of a warm front and nominally
elevated in character, this activity still may penetrate severe
gusts to the surface, as well as producing sporadic large hail.

The severe thunderstorm watch area is approximately along and 75
statute miles either side of a line from 70 miles west southwest of
Pierre SD to 5 miles north northeast of Jamestown ND. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU1).

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.

&&

AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
23035.

...Edwards