175
WWUS20 KWNS 170807
SEL7
SPC WW 170807
IAZ000-MNZ000-NEZ000-SDZ000-WIZ000-171500-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 427
NWS Storm Prediction Center Norman OK
310 AM CDT Mon Jun 17 2024

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
  Northern Iowa
  Southern Minnesota
  Far Northeast Nebraska
  Far Southeast South Dakota
  Western Wisconsin

* Effective this Monday morning from 310 AM until 1000 AM CDT.

* Primary threats include...
  Scattered damaging wind gusts to 70 mph possible
  Scattered large hail events to 1.5 inches in diameter possible
  A tornado or two possible

SUMMARY...Strong to severe thunderstorms are expected to develop
generally east-northeastward overnight across the region, with the
strongest storms capable of damaging winds and large hail.

The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 45 miles north of Sioux
City IA to 50 miles east northeast of La Crosse WI. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU7).

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 426...

AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
26035.

...Guyer