SEL2

   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 172
   NWS STORM PREDICTION CENTER NORMAN OK
   100 PM MDT FRI MAY 15 2015

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * TORNADO WATCH FOR PORTIONS OF 
     NORTHEAST COLORADO
     WESTERN NEBRASKA
     SOUTHEAST WYOMING

   * EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 100 PM UNTIL
     800 PM MDT.

   * PRIMARY THREATS INCLUDE...
     A COUPLE TORNADOES POSSIBLE
     ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE
     ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

   SUMMARY...THUNDERSTORM DEVELOPMENT IS EXPECTED EARLY THIS AFTERNOON
   ACROSS NE CO...WITH STORMS SPREADING INTO SE WY AND WRN NEB THROUGH
   THE AFTERNOON.  THE ENVIRONMENT WILL FAVOR SUPERCELLS CAPABLE OF
   PRODUCING A COUPLE OF TORNADOES...LARGE HAIL...AND DAMAGING WINDS
   THROUGH THIS EVENING.

   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE
   MILES NORTH AND SOUTH OF A LINE FROM 50 MILES SOUTH SOUTHWEST OF
   TORRINGTON WYOMING TO 35 MILES SOUTH SOUTHEAST OF MULLEN
   NEBRASKA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).

   PRECAUTIONARY/PREPAREDNESS ACTIONS...

   REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
   TORNADOES AND 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.

   &&

   AVIATION...TORNADOES AND 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 21025.


   ...THOMPSON

   SEL2

   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 172
   NWS STORM PREDICTION CENTER NORMAN OK
   100 PM MDT FRI MAY 15 2015

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * TORNADO WATCH FOR PORTIONS OF 
     NORTHEAST COLORADO
     WESTERN NEBRASKA
     SOUTHEAST WYOMING

   * EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 100 PM UNTIL
     800 PM MDT.

   * PRIMARY THREATS INCLUDE...
     A COUPLE TORNADOES POSSIBLE
     ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE
     ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

   SUMMARY...THUNDERSTORM DEVELOPMENT IS EXPECTED EARLY THIS AFTERNOON
   ACROSS NE CO...WITH STORMS SPREADING INTO SE WY AND WRN NEB THROUGH
   THE AFTERNOON.  THE ENVIRONMENT WILL FAVOR SUPERCELLS CAPABLE OF
   PRODUCING A COUPLE OF TORNADOES...LARGE HAIL...AND DAMAGING WINDS
   THROUGH THIS EVENING.

   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE
   MILES NORTH AND SOUTH OF A LINE FROM 50 MILES SOUTH SOUTHWEST OF
   TORRINGTON WYOMING TO 35 MILES SOUTH SOUTHEAST OF MULLEN
   NEBRASKA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).

   PRECAUTIONARY/PREPAREDNESS ACTIONS...

   REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
   TORNADOES AND 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.

   &&

   AVIATION...TORNADOES AND 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 21025.


   ...THOMPSON

   WOUS64 KWNS 151856
   WOU2

   BULLETIN - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH OUTLINE UPDATE FOR WT 172
   NWS STORM PREDICTION CENTER NORMAN OK
   100 PM MDT FRI MAY 15 2015

   TORNADO WATCH 172 IS IN EFFECT UNTIL 800 PM MDT FOR THE
    FOLLOWING LOCATIONS

   COC075-087-095-115-121-123-125-160200-
   /O.NEW.KWNS.TO.A.0172.150515T1900Z-150516T0200Z/

   CO 
   .    COLORADO COUNTIES INCLUDED ARE

   LOGAN                MORGAN              PHILLIPS            
   SEDGWICK             WASHINGTON          WELD                
   YUMA                 


   NEC005-007-013-029-031-033-045-049-057-069-075-091-101-105-111-
   113-117-123-135-157-161-165-171-160200-
   /O.NEW.KWNS.TO.A.0172.150515T1900Z-150516T0200Z/

   NE 
   .    NEBRASKA COUNTIES INCLUDED ARE

   ARTHUR               BANNER              BOX BUTTE           
   CHASE                CHERRY              CHEYENNE            
   DAWES                DEUEL               DUNDY               
   GARDEN               GRANT               HOOKER              
   KEITH                KIMBALL             LINCOLN             
   LOGAN                MCPHERSON           MORRILL             
   PERKINS              SCOTTS BLUFF        SHERIDAN            
   SIOUX                THOMAS              


   WYC015-021-160200-
   /O.NEW.KWNS.TO.A.0172.150515T1900Z-150516T0200Z/

   WY 
   .    WYOMING COUNTIES INCLUDED ARE

   GOSHEN               LARAMIE             


   ATTN...WFO...BOU...CYS...LBF...GLD...

   SAW2 
   WW 172 TORNADO CO NE WY 151900Z - 160200Z
   AXIS..80 STATUTE MILES NORTH AND SOUTH OF LINE..
   50SSW TOR/TORRINGTON WY/ - 35SSE MHN/MULLEN NE/
   ..AVIATION COORDS.. 70NM N/S /16NE CYS - 27N LBF/
   HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
   MAX TOPS TO 500. MEAN STORM MOTION VECTOR 21025.

   LAT...LON 42540451 42740080 40410080 40220451

   THIS IS AN APPROXIMATION TO THE WATCH AREA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
   FOR WOU2.

Watch 172 Status Report Messages:

STATUS REPORT #5 ON WW 172

VALID 160135Z - 160240Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 NNW GLD
TO 25 ESE SNY TO 20 N SNY TO 20 N CDR.

..GLEASON..05/16/15

ATTN...WFO...BOU...GLD...LBF...CYS...

&&

STATUS REPORT FOR WT 172 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

COC095-115-160240-

CO 
.    COLORADO COUNTIES INCLUDED ARE

PHILLIPS	     SEDGWICK		 
$$


NEC005-013-029-031-045-049-057-069-075-091-101-111-113-117-123-
135-161-171-160240-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

ARTHUR		     BOX BUTTE		 CHASE		     
CHERRY		     DAWES		 DEUEL		     
DUNDY		     GARDEN		 GRANT		     
HOOKER		     KEITH		 LINCOLN	     
LOGAN		     MCPHERSON		 MORRILL	     
PERKINS 	     SHERIDAN		 THOMAS 	     
$$


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 #4 ON WW 172

VALID 160050Z - 160140Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 ENE DEN
TO 30 WNW SNY TO 30 NNE BFF TO 35 WNW CDR.

..GLEASON..05/16/15

ATTN...WFO...BOU...GLD...LBF...CYS...

&&

STATUS REPORT FOR WT 172 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

COC075-087-095-115-121-123-125-160140-

CO 
.    COLORADO COUNTIES INCLUDED ARE

LOGAN		     MORGAN		 PHILLIPS	     
SEDGWICK	     WASHINGTON 	 WELD		     
YUMA		     
$$


NEC005-007-013-029-031-033-045-049-057-069-075-091-101-105-111-
113-117-123-135-157-161-165-171-160140-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

ARTHUR		     BANNER		 BOX BUTTE	     
CHASE		     CHERRY		 CHEYENNE	     
DAWES		     DEUEL		 DUNDY		     
GARDEN		     GRANT		 HOOKER 	     
KEITH		     KIMBALL		 LINCOLN	     
LOGAN		     MCPHERSON		 MORRILL	     
PERKINS 	     SCOTTS BLUFF	 SHERIDAN	     
SIOUX		     THOMAS		 
$$


WYC015-021-160140-

WY 
.    WYOMING COUNTIES INCLUDED ARE

GOSHEN		     LARAMIE		 
$$


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 172

VALID 152340Z - 160040Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 NE DEN TO
45 E CYS TO 15 S TOR TO 30 W TOR.

FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 651

..GLEASON..05/15/15

ATTN...WFO...BOU...GLD...LBF...CYS...

&&

STATUS REPORT FOR WT 172 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

COC075-087-095-115-121-123-125-160040-

CO 
.    COLORADO COUNTIES INCLUDED ARE

LOGAN		     MORGAN		 PHILLIPS	     
SEDGWICK	     WASHINGTON 	 WELD		     
YUMA		     
$$


NEC005-007-013-029-031-033-045-049-057-069-075-091-101-105-111-
113-117-123-135-157-161-165-171-160040-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

ARTHUR		     BANNER		 BOX BUTTE	     
CHASE		     CHERRY		 CHEYENNE	     
DAWES		     DEUEL		 DUNDY		     
GARDEN		     GRANT		 HOOKER 	     
KEITH		     KIMBALL		 LINCOLN	     
LOGAN		     MCPHERSON		 MORRILL	     
PERKINS 	     SCOTTS BLUFF	 SHERIDAN	     
SIOUX		     THOMAS		 
$$


WYC015-021-160040-

WY 
.    WYOMING COUNTIES INCLUDED ARE

GOSHEN		     LARAMIE		 
$$


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 172

VALID 152300Z - 160040Z

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

..GLEASON..05/15/15

ATTN...WFO...BOU...GLD...LBF...CYS...

&&

STATUS REPORT FOR WT 172 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

COC075-087-095-115-121-123-125-160040-

CO 
.    COLORADO COUNTIES INCLUDED ARE

LOGAN		     MORGAN		 PHILLIPS	     
SEDGWICK	     WASHINGTON 	 WELD		     
YUMA		     
$$


NEC005-007-013-029-031-033-045-049-057-069-075-091-101-105-111-
113-117-123-135-157-161-165-171-160040-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

ARTHUR		     BANNER		 BOX BUTTE	     
CHASE		     CHERRY		 CHEYENNE	     
DAWES		     DEUEL		 DUNDY		     
GARDEN		     GRANT		 HOOKER 	     
KEITH		     KIMBALL		 LINCOLN	     
LOGAN		     MCPHERSON		 MORRILL	     
PERKINS 	     SCOTTS BLUFF	 SHERIDAN	     
SIOUX		     THOMAS		 
$$


WYC015-021-160040-

WY 
.    WYOMING COUNTIES INCLUDED ARE

GOSHEN		     LARAMIE		 
$$


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 172

VALID 152145Z - 152240Z

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

..GLEASON..05/15/15

ATTN...WFO...BOU...GLD...LBF...CYS...

&&

STATUS REPORT FOR WT 172 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

COC075-087-095-115-121-123-125-152240-

CO 
.    COLORADO COUNTIES INCLUDED ARE

LOGAN		     MORGAN		 PHILLIPS	     
SEDGWICK	     WASHINGTON 	 WELD		     
YUMA		     
$$


NEC005-007-013-029-031-033-045-049-057-069-075-091-101-105-111-
113-117-123-135-157-161-165-171-152240-

NE 
.    NEBRASKA COUNTIES INCLUDED ARE

ARTHUR		     BANNER		 BOX BUTTE	     
CHASE		     CHERRY		 CHEYENNE	     
DAWES		     DEUEL		 DUNDY		     
GARDEN		     GRANT		 HOOKER 	     
KEITH		     KIMBALL		 LINCOLN	     
LOGAN		     MCPHERSON		 MORRILL	     
PERKINS 	     SCOTTS BLUFF	 SHERIDAN	     
SIOUX		     THOMAS		 
$$


WYC015-021-152240-

WY 
.    WYOMING COUNTIES INCLUDED ARE

GOSHEN		     LARAMIE		 
$$


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.