SEL4

   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 484
   NWS STORM PREDICTION CENTER NORMAN OK
   505 PM MDT WED AUG 7 2013

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     FAR SOUTHEAST MONTANA
     NORTHWEST NEBRASKA
     PARTS OF WESTERN AND SOUTHERN SOUTH DAKOTA
     PARTS OF EASTERN WYOMING

   * EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 505 PM
     UNTIL 1100 PM MDT.

   * PRIMARY THREATS INCLUDE...
     SEVERAL LARGE HAIL EVENTS WITH A FEW VERY LARGE HAIL EVENTS TO 2
       INCHES IN DIAMETER POSSIBLE
     SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 30 MILES SOUTHWEST
   OF GILLETTE WYOMING TO 60 MILES NORTH OF MULLEN NEBRASKA.  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.

   &&

   OTHER WATCH INFORMATION...CONTINUE...WW 482...WW 483...

   DISCUSSION...THUNDERSTORMS CONTINUE DEVELOPING IN A NORTHWEST TO
   SOUTHEAST ZONE FROM SOUTHEAST MONTANA INTO SOUTH CENTRAL SOUTH
   DAKOTA AND ADJACENT NORTHERN NEBRASKA...AHEAD OF AN UPPER VORT MAX
   PROGRESSING NORTHEASTWARD ACROSS NORTHEAST COLORADO.  WITH 500 TO
   1000 J/KG MIXED-LAYER CAPE ACROSS THE REGION AND SOME INCREASE IN
   SHEAR EXPECTED OVER THE NEXT COUPLE OF HOURS AS MODEST DIURNAL
   STRENGTHENING OF SLY LOW-LEVEL WINDS OCCURS...EXPECT ISOLATED THREAT
   FOR HAIL AND LOCALLY DAMAGING WINDS OVER THE NEXT SEVERAL HOURS.

   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 500. MEAN STORM
   MOTION VECTOR 30030.


   ...GOSS

   SEL4

   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 484
   NWS STORM PREDICTION CENTER NORMAN OK
   505 PM MDT WED AUG 7 2013

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     FAR SOUTHEAST MONTANA
     NORTHWEST NEBRASKA
     PARTS OF WESTERN AND SOUTHERN SOUTH DAKOTA
     PARTS OF EASTERN WYOMING

   * EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 505 PM
     UNTIL 1100 PM MDT.

   * PRIMARY THREATS INCLUDE...
     SEVERAL LARGE HAIL EVENTS WITH A FEW VERY LARGE HAIL EVENTS TO 2
       INCHES IN DIAMETER POSSIBLE
     SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 30 MILES SOUTHWEST
   OF GILLETTE WYOMING TO 60 MILES NORTH OF MULLEN NEBRASKA.  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.

   &&

   OTHER WATCH INFORMATION...CONTINUE...WW 482...WW 483...

   DISCUSSION...THUNDERSTORMS CONTINUE DEVELOPING IN A NORTHWEST TO
   SOUTHEAST ZONE FROM SOUTHEAST MONTANA INTO SOUTH CENTRAL SOUTH
   DAKOTA AND ADJACENT NORTHERN NEBRASKA...AHEAD OF AN UPPER VORT MAX
   PROGRESSING NORTHEASTWARD ACROSS NORTHEAST COLORADO.  WITH 500 TO
   1000 J/KG MIXED-LAYER CAPE ACROSS THE REGION AND SOME INCREASE IN
   SHEAR EXPECTED OVER THE NEXT COUPLE OF HOURS AS MODEST DIURNAL
   STRENGTHENING OF SLY LOW-LEVEL WINDS OCCURS...EXPECT ISOLATED THREAT
   FOR HAIL AND LOCALLY DAMAGING WINDS OVER THE NEXT SEVERAL HOURS.

   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 500. MEAN STORM
   MOTION VECTOR 30030.


   ...GOSS

   WOUS64 KWNS 072259
   WOU4

   BULLETIN - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 484
   NWS STORM PREDICTION CENTER NORMAN OK
   505 PM MDT WED AUG 7 2013

   SEVERE THUNDERSTORM WATCH 484 IS IN EFFECT UNTIL 1100 PM MDT
   FOR THE FOLLOWING LOCATIONS

   MTC011-075-080500-
   /O.NEW.KWNS.SV.A.0484.130807T2305Z-130808T0500Z/

   MT 
   .    MONTANA COUNTIES INCLUDED ARE

   CARTER               POWDER RIVER        


   NEC013-031-045-161-165-080500-
   /O.NEW.KWNS.SV.A.0484.130807T2305Z-130808T0500Z/

   NE 
   .    NEBRASKA COUNTIES INCLUDED ARE

   BOX BUTTE            CHERRY              DAWES               
   SHERIDAN             SIOUX               


   SDC007-019-033-047-071-081-093-095-103-113-121-080500-
   /O.NEW.KWNS.SV.A.0484.130807T2305Z-130808T0500Z/

   SD 
   .    SOUTH DAKOTA COUNTIES INCLUDED ARE

   BENNETT              BUTTE               CUSTER              
   FALL RIVER           JACKSON             LAWRENCE            
   MEADE                MELLETTE            PENNINGTON          
   SHANNON              TODD                


   WYC005-009-011-027-045-080500-
   /O.NEW.KWNS.SV.A.0484.130807T2305Z-130808T0500Z/

   WY 
   .    WYOMING COUNTIES INCLUDED ARE

   CAMPBELL             CONVERSE            CROOK               
   NIOBRARA             WESTON              


   ATTN...WFO...BYZ...UNR...CYS...LBF...

   SAW4 
   WW 484 SEVERE TSTM MT NE SD WY 072305Z - 080500Z
   AXIS..75 STATUTE MILES NORTH AND SOUTH OF LINE..
   30SW GCC/GILLETTE WY/ - 60N MHN/MULLEN NE/
   ..AVIATION COORDS.. 65NM N/S /21E CZI - 52WNW ANW/
   HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
   MAX TOPS TO 500. MEAN STORM MOTION VECTOR 30030.

   LAT...LON 45130595 44000106 41830106 42950595

   THIS IS AN APPROXIMATION TO THE WATCH AREA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
   FOR WOU4.

Watch 484 Status Report Messages:

STATUS REPORT #3 ON WW 484

VALID 080245Z - 080340Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 NNW TOR
TO 30 SW GCC.

..MOSIER..08/08/13

ATTN...WFO...BYZ...CYS...LBF...UNR...

&&

STATUS REPORT FOR WS 484 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

MTC011-075-080340-

MT 
.    MONTANA COUNTIES INCLUDED ARE

CARTER		     POWDER RIVER	 
$$


NEC013-031-045-161-165-080340-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

BOX BUTTE	     CHERRY		 DAWES		     
SHERIDAN	     SIOUX		 
$$


SDC007-019-033-047-071-081-093-095-103-113-121-123-080340-

SD 
.    SOUTH DAKOTA COUNTIES INCLUDED ARE

BENNETT 	     BUTTE		 CUSTER 	     
FALL RIVER	     JACKSON		 LAWRENCE	     
MEADE		     MELLETTE		 PENNINGTON	     
SHANNON 	     TODD		 TRIPP		     
$$


WYC005-011-027-045-080340-

WY 
.    WYOMING COUNTIES INCLUDED ARE

CAMPBELL	     CROOK		 NIOBRARA	     
WESTON		     
$$


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 484

VALID 080145Z - 080240Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 E DGW TO
50 NNE CPR.

..MOSIER..08/08/13

ATTN...WFO...BYZ...CYS...LBF...UNR...

&&

STATUS REPORT FOR WS 484 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

MTC011-075-080240-

MT 
.    MONTANA COUNTIES INCLUDED ARE

CARTER		     POWDER RIVER	 
$$


NEC013-031-045-161-165-080240-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

BOX BUTTE	     CHERRY		 DAWES		     
SHERIDAN	     SIOUX		 
$$


SDC007-019-033-047-071-081-093-095-103-113-121-123-080240-

SD 
.    SOUTH DAKOTA COUNTIES INCLUDED ARE

BENNETT 	     BUTTE		 CUSTER 	     
FALL RIVER	     JACKSON		 LAWRENCE	     
MEADE		     MELLETTE		 PENNINGTON	     
SHANNON 	     TODD		 TRIPP		     
$$


WYC005-011-027-045-080240-

WY 
.    WYOMING COUNTIES INCLUDED ARE

CAMPBELL	     CROOK		 NIOBRARA	     
WESTON		     
$$


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 484

VALID 080040Z - 080140Z

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

..MOSIER..08/08/13

ATTN...WFO...BYZ...CYS...LBF...UNR...

&&

STATUS REPORT FOR WS 484 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

MTC011-075-080140-

MT 
.    MONTANA COUNTIES INCLUDED ARE

CARTER		     POWDER RIVER	 
$$


NEC013-031-045-161-165-080140-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

BOX BUTTE	     CHERRY		 DAWES		     
SHERIDAN	     SIOUX		 
$$


SDC007-019-033-047-071-081-093-095-103-113-121-080140-

SD 
.    SOUTH DAKOTA COUNTIES INCLUDED ARE

BENNETT 	     BUTTE		 CUSTER 	     
FALL RIVER	     JACKSON		 LAWRENCE	     
MEADE		     MELLETTE		 PENNINGTON	     
SHANNON 	     TODD		 
$$


WYC005-009-011-027-045-080140-

WY 
.    WYOMING COUNTIES INCLUDED ARE

CAMPBELL	     CONVERSE		 CROOK		     
NIOBRARA	     WESTON		 
$$


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% (F2-F5 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.