WW 446 SEVERE TSTM MN ND SD 200210Z – 200900Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 446
NWS Storm Prediction Center Norman OK
910 PM CDT Thu Jun 19 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western into Central Minnesota
Southeast North Dakota
Northern into Northeast South Dakota
* Effective this Thursday night and Friday morning from 910 PM
until 400 AM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2.5
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
SUMMARY...Isolated severe thunderstorms this evening will pose a
risk for large to very large hail and severe gusts. Thunderstorms
are forecast to increase in coverage late this evening into the
overnight. The risks for hail and wind will likely continue as the
expected thunderstorm activity gradually shifts from west to east
across the Watch area.
The severe thunderstorm watch area is approximately along and 100
statute miles north and south of a line from 55 miles southwest of
Jamestown ND to 65 miles east southeast of Alexandria MN. 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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 443...WW 444...WW 445...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
30025.
...Smith