569
WWUS20 KWNS 191854
SEL9
SPC WW 191854
COZ000-NEZ000-SDZ000-200200-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 259
NWS Storm Prediction Center Norman OK
1255 PM MDT Sun May 19 2024

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
  Northeast Colorado
  Western Nebraska
  Western and Central South Dakota

* Effective this Sunday afternoon and evening from 1255 PM until
  800 PM MDT.

* 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

SUMMARY...Thunderstorms are forming over parts of western South
Dakota and Nebraska.  These storms will spread eastward through the
afternoon and early evening, posing a risk of locally damaging winds
gusts and hail.

The severe thunderstorm watch area is approximately along and 65
statute miles east and west of a line from 20 miles northwest of
Mobridge SD to 40 miles southeast of Sidney NE. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU9).

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 258...

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
25030.

...Hart