SEL7

   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 427
   NWS STORM PREDICTION CENTER NORMAN OK
   405 PM MDT SAT JUL 20 2013

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     NORTHEAST COLORADO
     WESTERN AND NORTHERN NEBRASKA
     WESTERN SOUTH DAKOTA
     EASTERN WYOMING

   * EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 405 PM UNTIL
     1100 PM MDT.

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

   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80
   STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES EAST
   NORTHEAST OF BUFFALO SOUTH DAKOTA TO 45 MILES SOUTH SOUTHWEST OF
   AKRON COLORADO.  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.

   &&

   OTHER WATCH INFORMATION...CONTINUE...WW 425...WW 426...

   DISCUSSION...SCATTERED THUNDERSTORMS ARE INCREASING IN COVERAGE OVER
   THE NORTHERN HIGH PLAINS THIS EVENING.  SUFFICIENT WINDS ALOFT
   COUPLED WITH MODERATE INSTABILITY WILL PROMOTE ORGANIZED/SUPERCELL
   THUNDERSTORMS CAPABLE OF LARGE HAIL AND DAMAGING WINDS THROUGH MUCH
   OF THE EVENING.

   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 29030.


   ...HART

   SEL7

   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 427
   NWS STORM PREDICTION CENTER NORMAN OK
   405 PM MDT SAT JUL 20 2013

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     NORTHEAST COLORADO
     WESTERN AND NORTHERN NEBRASKA
     WESTERN SOUTH DAKOTA
     EASTERN WYOMING

   * EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 405 PM UNTIL
     1100 PM MDT.

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

   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80
   STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES EAST
   NORTHEAST OF BUFFALO SOUTH DAKOTA TO 45 MILES SOUTH SOUTHWEST OF
   AKRON COLORADO.  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.

   &&

   OTHER WATCH INFORMATION...CONTINUE...WW 425...WW 426...

   DISCUSSION...SCATTERED THUNDERSTORMS ARE INCREASING IN COVERAGE OVER
   THE NORTHERN HIGH PLAINS THIS EVENING.  SUFFICIENT WINDS ALOFT
   COUPLED WITH MODERATE INSTABILITY WILL PROMOTE ORGANIZED/SUPERCELL
   THUNDERSTORMS CAPABLE OF LARGE HAIL AND DAMAGING WINDS THROUGH MUCH
   OF THE EVENING.

   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 29030.


   ...HART

   WOUS64 KWNS 202200
   WOU7

   BULLETIN - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 427
   NWS STORM PREDICTION CENTER NORMAN OK
   405 PM MDT SAT JUL 20 2013

   SEVERE THUNDERSTORM WATCH 427 IS IN EFFECT UNTIL 1100 PM MDT
   FOR THE FOLLOWING LOCATIONS

   COC001-005-075-087-095-115-121-123-210500-
   /O.NEW.KWNS.SV.A.0427.130720T2205Z-130721T0500Z/

   CO 
   .    COLORADO COUNTIES INCLUDED ARE

   ADAMS                ARAPAHOE            LOGAN               
   MORGAN               PHILLIPS            SEDGWICK            
   WASHINGTON           WELD                


   NEC005-007-013-031-033-045-049-069-075-091-105-123-157-161-165-
   210500-
   /O.NEW.KWNS.SV.A.0427.130720T2205Z-130721T0500Z/

   NE 
   .    NEBRASKA COUNTIES INCLUDED ARE

   ARTHUR               BANNER              BOX BUTTE           
   CHERRY               CHEYENNE            DAWES               
   DEUEL                GARDEN              GRANT               
   HOOKER               KIMBALL             MORRILL             
   SCOTTS BLUFF         SHERIDAN            SIOUX               


   SDC007-019-033-047-055-063-071-081-093-095-103-105-113-121-137-
   210500-
   /O.NEW.KWNS.SV.A.0427.130720T2205Z-130721T0500Z/

   SD 
   .    SOUTH DAKOTA COUNTIES INCLUDED ARE

   BENNETT              BUTTE               CUSTER              
   FALL RIVER           HAAKON              HARDING             
   JACKSON              LAWRENCE            MEADE               
   MELLETTE             PENNINGTON          PERKINS             
   SHANNON              TODD                ZIEBACH             


   WYC011-015-045-210500-
   /O.NEW.KWNS.SV.A.0427.130720T2205Z-130721T0500Z/

   WY 
   .    WYOMING COUNTIES INCLUDED ARE

   CROOK                GOSHEN              WESTON              


   ATTN...WFO...BOU...UNR...CYS...LBF...

   SAW7 
   WW 427 SEVERE TSTM CO NE SD WY 202205Z - 210500Z
   AXIS..80 STATUTE MILES EAST AND WEST OF LINE..
   60ENE 2WX/BUFFALO SD/ - 45SSW AKO/AKRON CO/
   ..AVIATION COORDS.. 70NM E/W /56NNW DPR - 39SSW AKO/
   HAIL SURFACE AND ALOFT..2.5 INCHES. WIND GUSTS..60 KNOTS.
   MAX TOPS TO 500. MEAN STORM MOTION VECTOR 29030.

   LAT...LON 45880069 39560204 39560505 45880402

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

Watch 427 Status Report Messages:

STATUS REPORT #4 ON WW 427

VALID 210235Z - 210340Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 SSW DEN
TO 25 WSW AKO TO 30 WNW IML TO 55 N IML TO 45 SW PHP TO 5 ESE PHP
TO 20 W PIR.

FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1455

..DEAN..07/21/13

ATTN...WFO...BOU...LBF...CYS...UNR...

&&

STATUS REPORT FOR WS 427 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

COC001-005-121-210340-

CO 
.    COLORADO COUNTIES INCLUDED ARE

ADAMS		     ARAPAHOE		 WASHINGTON	     
$$


NEC005-009-017-031-075-091-103-113-117-149-171-210340-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

ARTHUR		     BLAINE		 BROWN		     
CHERRY		     GRANT		 HOOKER 	     
KEYA PAHA	     LOGAN		 MCPHERSON	     
ROCK		     THOMAS		 
$$


SDC007-071-095-121-123-210340-

SD 
.    SOUTH DAKOTA COUNTIES INCLUDED ARE

BENNETT 	     JACKSON		 MELLETTE	     
TODD		     TRIPP		 
$$


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 #3 ON WW 427

VALID 210135Z - 210240Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 NE DGW TO
60 NW CDR TO 35 W RAP TO 45 NW RAP TO 30 SSW 2WX TO 10 W 2WX TO
35 S BHK.

FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1455

..DEAN..07/21/13

ATTN...WFO...BOU...LBF...CYS...UNR...

&&

STATUS REPORT FOR WS 427 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

COC001-005-075-087-095-115-121-123-210240-

CO 
.    COLORADO COUNTIES INCLUDED ARE

ADAMS		     ARAPAHOE		 LOGAN		     
MORGAN		     PHILLIPS		 SEDGWICK	     
WASHINGTON	     WELD		 
$$


NEC005-007-009-013-017-031-033-045-049-069-075-091-103-105-113-
117-123-149-157-161-165-171-210240-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

ARTHUR		     BANNER		 BLAINE 	     
BOX BUTTE	     BROWN		 CHERRY 	     
CHEYENNE	     DAWES		 DEUEL		     
GARDEN		     GRANT		 HOOKER 	     
KEYA PAHA	     KIMBALL		 LOGAN		     
MCPHERSON	     MORRILL		 ROCK		     
SCOTTS BLUFF	     SHERIDAN		 SIOUX		     
THOMAS		     
$$


SDC007-019-033-047-055-063-071-081-093-095-103-105-113-121-137-
210240-

SD 
.    SOUTH DAKOTA COUNTIES INCLUDED ARE

BENNETT 	     BUTTE		 CUSTER 	     
FALL RIVER	     HAAKON		 HARDING	     
JACKSON 	     LAWRENCE		 MEADE		     
MELLETTE	     PENNINGTON 	 PERKINS	     
SHANNON 	     TODD		 ZIEBACH	     
$$


WYC015-210240-

WY 
.    WYOMING COUNTIES INCLUDED ARE

GOSHEN		     
$$


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 427

VALID 210055Z - 210140Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 NE DGW TO
65 NW CDR TO 40 W RAP TO 60 SSW 2WX TO 25 WSW 2WX TO 40 WNW 2WX.

..DEAN..07/21/13

ATTN...WFO...BOU...LBF...CYS...UNR...

&&

STATUS REPORT FOR WS 427 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

COC001-005-075-087-095-115-121-123-210140-

CO 
.    COLORADO COUNTIES INCLUDED ARE

ADAMS		     ARAPAHOE		 LOGAN		     
MORGAN		     PHILLIPS		 SEDGWICK	     
WASHINGTON	     WELD		 
$$


NEC005-007-009-013-017-031-033-045-049-069-075-091-103-105-113-
117-123-149-157-161-165-171-210140-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

ARTHUR		     BANNER		 BLAINE 	     
BOX BUTTE	     BROWN		 CHERRY 	     
CHEYENNE	     DAWES		 DEUEL		     
GARDEN		     GRANT		 HOOKER 	     
KEYA PAHA	     KIMBALL		 LOGAN		     
MCPHERSON	     MORRILL		 ROCK		     
SCOTTS BLUFF	     SHERIDAN		 SIOUX		     
THOMAS		     
$$


SDC007-019-033-047-055-063-071-081-093-095-103-105-113-121-137-
210140-

SD 
.    SOUTH DAKOTA COUNTIES INCLUDED ARE

BENNETT 	     BUTTE		 CUSTER 	     
FALL RIVER	     HAAKON		 HARDING	     
JACKSON 	     LAWRENCE		 MEADE		     
MELLETTE	     PENNINGTON 	 PERKINS	     
SHANNON 	     TODD		 ZIEBACH	     
$$


WYC015-210140-

WY 
.    WYOMING COUNTIES INCLUDED ARE

GOSHEN		     
$$


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 427

VALID 202325Z - 210040Z

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

..DEAN..07/20/13

ATTN...WFO...BOU...LBF...CYS...UNR...

&&

STATUS REPORT FOR WS 427 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

COC001-005-075-087-095-115-121-123-210040-

CO 
.    COLORADO COUNTIES INCLUDED ARE

ADAMS		     ARAPAHOE		 LOGAN		     
MORGAN		     PHILLIPS		 SEDGWICK	     
WASHINGTON	     WELD		 
$$


NEC005-007-013-031-033-045-049-069-075-091-105-123-157-161-165-
210040-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

ARTHUR		     BANNER		 BOX BUTTE	     
CHERRY		     CHEYENNE		 DAWES		     
DEUEL		     GARDEN		 GRANT		     
HOOKER		     KIMBALL		 MORRILL	     
SCOTTS BLUFF	     SHERIDAN		 SIOUX		     
$$


SDC007-019-033-047-055-063-071-081-093-095-103-105-113-121-137-
210040-

SD 
.    SOUTH DAKOTA COUNTIES INCLUDED ARE

BENNETT 	     BUTTE		 CUSTER 	     
FALL RIVER	     HAAKON		 HARDING	     
JACKSON 	     LAWRENCE		 MEADE		     
MELLETTE	     PENNINGTON 	 PERKINS	     
SHANNON 	     TODD		 ZIEBACH	     
$$


WYC011-015-045-210040-

WY 
.    WYOMING COUNTIES INCLUDED ARE

CROOK		     GOSHEN		 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.