WW 494 SEVERE TSTM IA NE SD 232200Z – 240300Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 494
NWS Storm Prediction Center Norman OK
500 PM CDT Sat Jul 23 2022
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northwest Iowa
South central into northeast Nebraska
Extreme southeast South Dakota
* Effective this Saturday afternoon and evening from 500 PM until
1000 PM 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...A mix of multicell clusters and supercells are expected to
develop northeastward from south central into northeast Nebraska,
and adjacent areas of northwest Iowa and extreme southeast South
Dakota through late evening. The strongest storms will be capable
of producing damaging outflow winds up to 75 mph, and large hail up
to 2 inches in diameter.
The severe thunderstorm watch area is approximately along and 35
statute miles north and south of a line from 15 miles west southwest
of Kearney NE to 30 miles east of Sioux City IA. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU4).
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 491...WW 492...WW 493...
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 600. Mean storm motion vector
25025.
...Thompson
