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URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 556

NWS Storm Prediction Center Norman OK

250 PM CDT Tue Aug 6 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  central and southern North Dakota

  northern South Dakota



* Effective this Tuesday afternoon and evening from 250 PM until

  1100 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 possible

  A tornado or two possible



SUMMARY...Severe storms are expected to increase in coverage this

afternoon and continue into the evening. Initial primary threat will

be supercells with large to very large hail and downburst winds,

though a brief tornado cannot be ruled out. Threat will transition

to damaging wind as storms develop southeast into South Dakota this

evening.



The severe thunderstorm watch area is approximately along and 85

statute miles east and west of a line from 15 miles east northeast

of Garrison ND to 75 miles south southwest of Aberdeen SD. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU6).



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 555...



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

31035.



...Dial

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