WW 449 SEVERE TSTM MN WI LS 210415Z – 211200Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 449
NWS Storm Prediction Center Norman OK
1115 PM CDT Fri Jun 20 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northern Minnesota
Northern Wisconsin
Lake Superior
* Effective this Friday night and Saturday morning from 1115 PM
until 700 AM CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 80
mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
A tornado or two possible
SUMMARY...Scattered severe thunderstorms are forecast to develop and
move east across the Watch tonight. A mix of supercells, clusters
of storms, and a bow echo are forecast to move into the Watch, and
pose a risk for severe gusts (60-80 mph), large to very large hail,
and perhaps a tornado.
The severe thunderstorm watch area is approximately along and 75
statute miles north and south of a line from 40 miles northwest of
Bemidji MN to 45 miles northeast of Kennedy WI. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU9).
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 448...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 70 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
25035.
...Smith