SEL7

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 337
   NWS Storm Prediction Center Norman OK
   600 PM CDT Wed Aug 15 2018

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     A small part of central and southwest Nebraska

   * Effective this Wednesday evening from 600 PM until 1000 PM CDT.

   * Primary threats include...
     Scattered large hail and isolated very large hail events to 2
       inches in diameter possible
     Isolated damaging wind gusts to 70 mph possible

   SUMMARY...A cluster of supercells along an outflow boundary should
   persist through late evening while moving southeastward.  The storm
   environment will be sufficient to maintain the supercells with an
   attendant threat for large hail and damaging winds.

   The severe thunderstorm watch area is approximately along and 35
   statute miles north and south of a line from 70 miles west of North
   Platte NE to 25 miles east southeast of North Platte NE. For a
   complete depiction of the watch see the associated watch outline
   update (WOUS64 KWNS WOU7).

   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 inches. Extreme turbulence and surface wind gusts to 60 knots. A
   few cumulonimbi with maximum tops to 450. Mean storm motion vector
   32020.

   ...Thompson

   SEL7

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 337
   NWS Storm Prediction Center Norman OK
   600 PM CDT Wed Aug 15 2018

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     A small part of central and southwest Nebraska

   * Effective this Wednesday evening from 600 PM until 1000 PM CDT.

   * Primary threats include...
     Scattered large hail and isolated very large hail events to 2
       inches in diameter possible
     Isolated damaging wind gusts to 70 mph possible

   SUMMARY...A cluster of supercells along an outflow boundary should
   persist through late evening while moving southeastward.  The storm
   environment will be sufficient to maintain the supercells with an
   attendant threat for large hail and damaging winds.

   The severe thunderstorm watch area is approximately along and 35
   statute miles north and south of a line from 70 miles west of North
   Platte NE to 25 miles east southeast of North Platte NE. For a
   complete depiction of the watch see the associated watch outline
   update (WOUS64 KWNS WOU7).

   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 inches. Extreme turbulence and surface wind gusts to 60 knots. A
   few cumulonimbi with maximum tops to 450. Mean storm motion vector
   32020.

   ...Thompson

   WOUS64 KWNS 152257
   WOU7

   BULLETIN - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 337
   NWS STORM PREDICTION CENTER NORMAN OK
   600 PM CDT WED AUG 15 2018

   SEVERE THUNDERSTORM WATCH 337 IS IN EFFECT UNTIL 1000 PM CDT
   FOR THE FOLLOWING LOCATIONS

   NEC029-063-085-101-111-135-160300-
   /O.NEW.KWNS.SV.A.0337.180815T2300Z-180816T0300Z/

   NE 
   .    NEBRASKA COUNTIES INCLUDED ARE

   CHASE                FRONTIER            HAYES               
   KEITH                LINCOLN             PERKINS             


   ATTN...WFO...LBF...

   SAW7 
   WW 337 SEVERE TSTM NE 152300Z - 160300Z
   AXIS..35 STATUTE MILES NORTH AND SOUTH OF LINE..
   70W LBF/NORTH PLATTE NE/ - 25ESE LBF/NORTH PLATTE NE/
   ..AVIATION COORDS.. 30NM N/S /43E SNY - 23ESE LBF/
   HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
   MAX TOPS TO 450. MEAN STORM MOTION VECTOR 32020.

   LAT...LON 41630201 41500023 40470023 40610201

   THIS IS AN APPROXIMATION TO THE WATCH AREA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
   FOR WOU7.

Watch 337 Status Report Messages:

STATUS REPORT #3 ON WW 337

VALID 160225Z - 160300Z

WW 337 COULD BE CANCELLED EARLY, OR OTHERWISE MAY BE ALLOWED TO
EXPIRE AT 16/03Z.

..KERR..08/16/18

ATTN...WFO...LBF...

&&

STATUS REPORT FOR WS 337 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

NEC029-063-085-101-111-135-160300-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

CHASE		     FRONTIER		 HAYES		     
KEITH		     LINCOLN		 PERKINS	     
$$


THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY.  PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$

STATUS REPORT #2 ON WW 337

VALID 160125Z - 160240Z

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

..KERR..08/16/18

ATTN...WFO...LBF...

&&

STATUS REPORT FOR WS 337 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

NEC029-063-085-101-111-135-160240-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

CHASE		     FRONTIER		 HAYES		     
KEITH		     LINCOLN		 PERKINS	     
$$


THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY.  PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$

STATUS REPORT #1 ON WW 337

VALID 160025Z - 160140Z

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

..KERR..08/16/18

ATTN...WFO...LBF...

&&

STATUS REPORT FOR WS 337 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

NEC029-063-085-101-111-135-160140-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

CHASE		     FRONTIER		 HAYES		     
KEITH		     LINCOLN		 PERKINS	     
$$


THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY.  PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$

Please visit the National Weather Service Interactive Weather Information Network (IWIN) for more information on the warnings.

For each watch, probabilities for particular events inside the watch (listed above in each table) are determined by the issuing forecaster. The "Low" category contains probability values ranging from less than 2% to 20% (EF2-EF5 tornadoes), less than 5% to 20% (all other probabilities), "Moderate" from 30% to 60%, and "High" from 70% to greater than 95%. High values are bolded and lighter in color to provide awareness of an increased threat for a particular event.