

688 

WWUS20 KWNS 290352

SEL9

SPC WW 290352

MNZ000-NDZ000-SDZ000-291300-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 239

NWS Storm Prediction Center Norman OK

1050 PM CDT Thu Jun 28 2018



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northwestern Minnesota

  North Dakota

  Extreme north-central South Dakota



* Effective this Thursday night and Friday morning from 1050 PM

  until 800 AM CDT.



* Primary threats include...

  Widespread damaging wind gusts to 70 mph likely

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible

  A tornado or two possible



SUMMARY...A big complex of severe thunderstorms is expected to get

better-organized and race across the watch area through the

remainder of the pre-dawn hours, on either side of a frontal zone,

absorbing supercells and multicells initially ahead of it, and

offering severe wind as the dominant threat.  The system also may

yield a tornado or two, along with sporadic hail.



The severe thunderstorm watch area is approximately along and 105

statute miles north and south of a line from 40 miles north of

Dickinson ND to 15 miles north northeast of Bemidji MN. 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 234...WW 235...WW

236...WW 237...WW 238...



AVIATION...A few severe thunderstorms with hail surface and aloft to

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

few cumulonimbi with maximum tops to 650. Mean storm motion vector

25045.



...Edwards



688 

WWUS20 KWNS 290352

SEL9

SPC WW 290352

MNZ000-NDZ000-SDZ000-291300-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 239

NWS Storm Prediction Center Norman OK

1050 PM CDT Thu Jun 28 2018



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northwestern Minnesota

  North Dakota

  Extreme north-central South Dakota



* Effective this Thursday night and Friday morning from 1050 PM

  until 800 AM CDT.



* Primary threats include...

  Widespread damaging wind gusts to 70 mph likely

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible

  A tornado or two possible



SUMMARY...A big complex of severe thunderstorms is expected to get

better-organized and race across the watch area through the

remainder of the pre-dawn hours, on either side of a frontal zone,

absorbing supercells and multicells initially ahead of it, and

offering severe wind as the dominant threat.  The system also may

yield a tornado or two, along with sporadic hail.



The severe thunderstorm watch area is approximately along and 105

statute miles north and south of a line from 40 miles north of

Dickinson ND to 15 miles north northeast of Bemidji MN. 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 234...WW 235...WW

236...WW 237...WW 238...



AVIATION...A few severe thunderstorms with hail surface and aloft to

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

few cumulonimbi with maximum tops to 650. Mean storm motion vector

25045.



...Edwards

