WW 140 SEVERE TSTM IA MN NE WI 172045Z – 180300Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 140
NWS Storm Prediction Center Norman OK
345 PM CDT Thu Apr 17 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northwest and Northern Iowa
Southern and Southeast Minnesota
Far Northeast Nebraska
West-Central Wisconsin
* Effective this Thursday afternoon and evening from 345 PM until
1000 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
SUMMARY...Scattered thunderstorms are forecast to develop and
intensify through the early evening across the Watch area. The
stronger storms will be capable of a threat for large to very large
hail (1 to 2 inches in diameter) and damaging gusts. Upscale growth
into a linear cluster is possible this evening across southern
Minnesota as this activity moves east towards the Mississippi River.
The severe thunderstorm watch area is approximately along and 65
statute miles east and west of a line from 25 miles northeast of
Minneapolis MN to 30 miles south southwest of Storm Lake IA. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU0).
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 60 knots. A
few cumulonimbi with maximum tops to 450. Mean storm motion vector
25030.
...Smith