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169 

WWUS20 KWNS 301009

SEL5

SPC WW 301009

MNZ000-WIZ000-LSZ000-301800-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 465

NWS Storm Prediction Center Norman OK

510 AM CDT Sun Jun 30 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Eastern Minnesota

  Western Wisconsin

  Lake Superior



* Effective this Sunday morning and afternoon from 510 AM until

  100 PM CDT.



* Primary threats include...

  Scattered damaging winds and isolated significant gusts to 75

    mph possible

  Isolated large hail events to 1.5 inches in diameter possible



SUMMARY...A complex of strong/isolated severe thunderstorms has

turned south-southeastward along an eastward-moving instability

gradient in northeastern Minnesota.  This poses an increased threat

for damaging wind as these storms (and possible later development on

their west side) encounter moist and unstable air through midday

over the watch area.  See SPC mesoscale discussion 1311 for initial

meteorological reasoning.



The severe thunderstorm watch area is approximately along and 70

statute miles east and west of a line from 70 miles northeast of

Saint Cloud MN to 30 miles southwest of La Crosse WI. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU5).



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 65 knots. A

few cumulonimbi with maximum tops to 550. Mean storm motion vector

33035.



...Edwards

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