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Severe Weather Watches Overview

Watch data currently updates every 15 minutes.

Severe Thunderstorm Watch #0257 for Western Upper Michigan, Minnesota Arrowhead, Central and Northern Wisconsin, Lake Superior

Scattered damaging wind gusts to 70 mph possible
Scattered large hail events to 1.5 inches in diameter possible

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Severe Thunderstorm Watch #0257

Locations Affected

Western Upper Michigan

Minnesota Arrowhead

Central and Northern Wisconsin

Lake Superior

Severe Thunderstorm Watch Summary

Thunderstorms are developing along a cold front over western Wisconsin and northeast Minnesota. These storms will track eastward through the early evening, posing a risk of hail and damaging winds.

Severe Weather Threats

Scattered damaging wind gusts to 70 mph possible

Scattered large hail events to 1.5 inches in diameter possible

Severe Thunderstorm Watch Details

SEL7

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 257
NWS Storm Prediction Center Norman OK
330 PM CDT Sat May 18 2024

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Western Upper Michigan
  Minnesota Arrowhead
  Central and Northern Wisconsin
  Lake Superior

* Effective this Saturday afternoon and evening from 330 PM until
  1000 PM CDT.

* Primary threats include...
  Scattered damaging wind gusts to 70 mph possible
  Scattered large hail events to 1.5 inches in diameter possible

SUMMARY...Thunderstorms are developing along a cold front over
western Wisconsin and northeast Minnesota.  These storms will track
eastward through the early evening, posing a risk of hail and
damaging winds.

The severe thunderstorm watch area is approximately along and 50
statute miles east and west of a line from 30 miles north northeast
of Grand Marais MN to 35 miles south of Mosinee WI. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU7).

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
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
26030.

...Hart

National Risk Overview

Saturday, May 18: TORNADO: 2%; HAIL: 15%; WIND: 15%
Sunday, May 19: TORNADO: 5%; HAIL: 15%; WIND: 30%
Monday, May 20: ANY SEVERE: 15%
Tuesday, May 21: ANY SEVERE: 30%
Wednesday, May 22: ANY SEVERE: low / uncertain
Thursday, May 23: ANY SEVERE: 15%
Friday, May 24: ANY SEVERE: low / uncertain
Saturday, May 25: ANY SEVERE: low / uncertain

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