WW 146 SEVERE TSTM IA MN 192050Z – 200400Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 146
NWS Storm Prediction Center Norman OK
350 PM CDT Wed Apr 19 2023
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northwest to north-central Iowa
Far southwest Minnesota
* Effective this Wednesday afternoon and evening from 350 PM
until 1100 PM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Isolated damaging wind gusts to 60 mph possible
A tornado or two possible
SUMMARY...A supercell cluster should develop northeast from the
Mid-Missouri Valley and pose a primary threat of large hail north of
the surface warm front.
The severe thunderstorm watch area is approximately along and 45
statute miles north and south of a line from 50 miles west southwest
of Worthington MN to 30 miles northeast of Fort Dodge IA. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU6).
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 50 knots. A
few cumulonimbi with maximum tops to 450. Mean storm motion vector
23030.
...Grams
