

332 

WWUS20 KWNS 201847

SEL4

SPC WW 201847

NDZ000-SDZ000-210300-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 654

NWS Storm Prediction Center Norman OK

150 PM CDT Fri Sep 20 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Central North Dakota

  North-Central South Dakota



* Effective this Friday afternoon and evening from 150 PM until

  1000 PM CDT.



* Primary threats include...

  Scattered large hail likely with isolated very large hail events

    to 2.5 inches in diameter possible

  Scattered damaging wind gusts to 70 mph likely

  A tornado or two possible



SUMMARY...Thunderstorms will intensify this afternoon over parts of

the central Dakotas, with a few storms becoming severe.  Large hail

is the primary threat, with an increasing risk of damaging winds by

early evening.  An isolated tornado or two is also possible.



The severe thunderstorm watch area is approximately along and 75

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

Minot ND to 25 miles south of Mobridge SD. For a complete depiction

of the watch see the associated watch outline update (WOUS64 KWNS

WOU4).



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

2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A

few cumulonimbi with maximum tops to 500. Mean storm motion vector

25030.



...Hart

