SEL3
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 543
   NWS STORM PREDICTION CENTER NORMAN OK
   1255 PM MDT THU JUN 23 2011
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          LARGE PART OF WESTERN MONTANA
   
   EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 1255 PM UNTIL
   800 PM MDT.
   
   HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 135
   STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES EAST
   NORTHEAST OF CUT BANK MONTANA TO 40 MILES SOUTH SOUTHEAST OF
   HELENA MONTANA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).
   
   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 541...WW 542...
   
   DISCUSSION...THUNDERSTORMS ARE DEVELOPING OVER THE HIGHER TERRAIN
   AHEAD OF THE COLD FRONT AND APPROACHING UPPER TROUGH.  WITH MLCAPES
   AOA 1000 J/KG... VERY STEEP LAPSE RATES AND 40-50KT OF DEEP LAYER
   SHEAR...DAMAGING WINDS WILL DEVELOP WITH THE STORMS AS THEY FORM
   CLUSTERS AND BOWING SEGMENTS.  IN ADDITION LARGE HAIL IS LIKELY
   GIVEN THE STEEP LAPSE RATES AND SHEAR PROFILES.
   
   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 24035.
   
   
   ...HALES

   SEL3
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 543
   NWS STORM PREDICTION CENTER NORMAN OK
   1255 PM MDT THU JUN 23 2011
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          LARGE PART OF WESTERN MONTANA
   
   EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 1255 PM UNTIL
   800 PM MDT.
   
   SCATTERED DAMAGING WINDS
   ISOLATED WIND GUSTS TO 70 MPH POSSIBLE
   SCATTERED LARGE HAIL TO 2.0 INCHES IN DIAMETER
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 135
   STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES EAST
   NORTHEAST OF CUT BANK MONTANA TO 40 MILES SOUTH SOUTHEAST OF
   HELENA MONTANA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).
   
   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 541...WW 542...
   
   DISCUSSION...THUNDERSTORMS ARE DEVELOPING OVER THE HIGHER TERRAIN
   AHEAD OF THE COLD FRONT AND APPROACHING UPPER TROUGH.  WITH MLCAPES
   AOA 1000 J/KG... VERY STEEP LAPSE RATES AND 40-50KT OF DEEP LAYER
   SHEAR...DAMAGING WINDS WILL DEVELOP WITH THE STORMS AS THEY FORM
   CLUSTERS AND BOWING SEGMENTS.  IN ADDITION LARGE HAIL IS LIKELY
   GIVEN THE STEEP LAPSE RATES AND SHEAR PROFILES.
   
   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 24035.
   
   
   ...HALES

   SEL3
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 543
   NWS STORM PREDICTION CENTER NORMAN OK
   1255 PM MDT THU JUN 23 2011
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          LARGE PART OF WESTERN MONTANA
   
   EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 1255 PM UNTIL
   800 PM MDT.
   
   HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 135
   STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES EAST
   NORTHEAST OF CUT BANK MONTANA TO 40 MILES SOUTH SOUTHEAST OF
   HELENA MONTANA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).
   
   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 541...WW 542...
   
   DISCUSSION...THUNDERSTORMS ARE DEVELOPING OVER THE HIGHER TERRAIN
   AHEAD OF THE COLD FRONT AND APPROACHING UPPER TROUGH.  WITH MLCAPES
   AOA 1000 J/KG... VERY STEEP LAPSE RATES AND 40-50KT OF DEEP LAYER
   SHEAR...DAMAGING WINDS WILL DEVELOP WITH THE STORMS AS THEY FORM
   CLUSTERS AND BOWING SEGMENTS.  IN ADDITION LARGE HAIL IS LIKELY
   GIVEN THE STEEP LAPSE RATES AND SHEAR PROFILES.
   
   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 24035.
   
   
   ...HALES

   WOUS64 KWNS 231851
   WOU3
   
   BULLETIN - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 543
   NWS STORM PREDICTION CENTER NORMAN OK
   1255 PM MDT THU JUN 23 2011
   
   SEVERE THUNDERSTORM WATCH 543 IS IN EFFECT UNTIL 800 PM MDT
   FOR THE FOLLOWING LOCATIONS
   
   MTC005-007-013-015-023-027-029-035-039-041-043-045-047-049-051-
   059-063-073-077-081-099-101-240200-
   /O.NEW.KWNS.SV.A.0543.110623T1855Z-110624T0200Z/
   
   MT 
   .    MONTANA COUNTIES INCLUDED ARE
   
   BLAINE               BROADWATER          CASCADE             
   CHOUTEAU             DEER LODGE          FERGUS              
   FLATHEAD             GLACIER             GRANITE             
   HILL                 JEFFERSON           JUDITH BASIN        
   LAKE                 LEWIS AND CLARK     LIBERTY             
   MEAGHER              MISSOULA            PONDERA             
   POWELL               RAVALLI             TETON               
   TOOLE                
   
   
   ATTN...WFO...TFX...MSO...
   
   
   

   SAW3 
   WW 543 SEVERE TSTM MT 231855Z - 240200Z
   AXIS..135 STATUTE MILES EAST AND WEST OF LINE..
   50ENE CTB/CUT BANK MT/ - 40SSE HLN/HELENA MT/
   ..AVIATION COORDS.. 115NM E/W /67WNW HVR - 35SSE HLN/
   HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
   MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24035.
   
   LAT...LON 48840838 46020887 46021450 48841433
   
   THIS IS AN APPROXIMATION TO THE WATCH AREA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
   FOR WOU3.
   

Watch 543 Status Report Messages:

STATUS REPORT #4 ON WW 543

VALID 240140Z - 240200Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NW BIL TO
35 ENE LWT TO 45 ESE HVR TO 35 NNE HVR.

WW 543 WILL BE ALLOWED TO EXPIRE AT 240200Z.

..GUYER..06/24/11

ATTN...WFO...TFX...MSO...

&&

STATUS REPORT FOR WS 543 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

MTC005-027-041-240200-

MT 
.    MONTANA COUNTIES INCLUDED ARE

BLAINE		     FERGUS		 HILL		     
$$


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 543

VALID 240040Z - 240140Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 SSE 3HT
TO 20 N LWT TO 30 SSW HVR TO 50 NW HVR.

..GUYER..06/24/11

ATTN...WFO...TFX...MSO...

&&

STATUS REPORT FOR WS 543 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

MTC005-027-041-240140-

MT 
.    MONTANA COUNTIES INCLUDED ARE

BLAINE		     FERGUS		 HILL		     
$$


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 543

VALID 232135Z - 232240Z

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

..GUYER..06/23/11

ATTN...WFO...TFX...MSO...

&&

STATUS REPORT FOR WS 543 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

MTC005-007-013-015-023-027-029-035-039-041-043-045-047-049-051-
059-063-073-077-081-099-101-232240-

MT 
.    MONTANA COUNTIES INCLUDED ARE

BLAINE		     BROADWATER 	 CASCADE	     
CHOUTEAU	     DEER LODGE 	 FERGUS 	     
FLATHEAD	     GLACIER		 GRANITE	     
HILL		     JEFFERSON		 JUDITH BASIN	     
LAKE		     LEWIS AND CLARK	 LIBERTY	     
MEAGHER 	     MISSOULA		 PONDERA	     
POWELL		     RAVALLI		 TETON		     
TOOLE		     
$$


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 543

VALID 232025Z - 232140Z

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

..HURLBUT..06/23/11

ATTN...WFO...TFX...MSO...

&&

STATUS REPORT FOR WS 543 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

MTC005-007-013-015-023-027-029-035-039-041-043-045-047-049-051-
059-063-073-077-081-099-101-232140-

MT 
.    MONTANA COUNTIES INCLUDED ARE

BLAINE		     BROADWATER 	 CASCADE	     
CHOUTEAU	     DEER LODGE 	 FERGUS 	     
FLATHEAD	     GLACIER		 GRANITE	     
HILL		     JEFFERSON		 JUDITH BASIN	     
LAKE		     LEWIS AND CLARK	 LIBERTY	     
MEAGHER 	     MISSOULA		 PONDERA	     
POWELL		     RAVALLI		 TETON		     
TOOLE		     
$$


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.