SPC Severe Thunderstorm Watch 649



WW 649 SEVERE TSTM OK 121955Z – 130300Z

WW 0649 Image

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 649
NWS Storm Prediction Center Norman OK
255 PM CDT Thu Sep 12 2019

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Northern Oklahoma

* Effective this Thursday afternoon and evening from 255 PM until
  1000 PM CDT.

* Primary threats include...
  Scattered damaging wind gusts to 70 mph possible
  Isolated large hail events to 1 inch in diameter possible

SUMMARY...Thunderstorms are forming along a cold front extending
across northern Oklahoma.  Hot/humid conditions along and south of
the front will result in strong to damaging wind gusts in the most
intense cells.

The severe thunderstorm watch area is approximately along and 50
statute miles north and south of a line from 55 miles northwest of
Clinton OK to 45 miles east northeast of Tulsa OK. 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 648...

AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector
28025.

...Hart

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