WW 448 TORNADO MN ND SD 210050Z – 210800Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 448
NWS Storm Prediction Center Norman OK
750 PM CDT Fri Jun 20 2025
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Northwest into West-Central Minnesota
Central and Eastern North Dakota
Northern South Dakota
* Effective this Friday night and Saturday morning from 750 PM
until 300 AM CDT.
* Primary threats include...
A couple tornadoes possible
Widespread damaging winds expected with isolated significant
gusts to 105 mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
SUMMARY...An intense squall line is forecast to rapidly move east
across the Watch area this evening into the overnight period. A
potential supercell tornado risk may develop with any storms that
develop ahead of the squall line. A tornado risk may accompany the
stronger and more persistent embedded circulations within the line.
Widespread severe gusts (60-80 mph) are expected. Swaths of 80-105
mph gusts are possible with the more intense portions of the
convective line.
The tornado watch area is approximately along and 105 statute miles
north and south of a line from 15 miles north northwest of Bismarck
ND to 30 miles north northeast of Detroit Lakes MN. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU8).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and 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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 447...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2 inches. Extreme turbulence and surface wind
gusts to 90 knots. A few cumulonimbi with maximum tops to 550. Mean
storm motion vector 26045.
...Smith