SEL8
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 558
   NWS STORM PREDICTION CENTER NORMAN OK
   725 PM MDT MON JUL 6 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTHEASTERN MONTANA
   
   EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 725 PM UNTIL
   100 AM MDT.
   
   HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 95
   STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES NORTH
   NORTHEAST OF GLASGOW MONTANA TO 60 MILES WEST SOUTHWEST OF
   GLENDIVE MONTANA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).
   
   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 553...WW 554...WW
   555...WW 556...WW 557...
   
   DISCUSSION...STRONG UPPER TROUGH WILL PUSH A LINE OF THUNDERSTORMS
   EASTWARD  ACROSS NORTHEASTERN MT OVERNIGHT. ALTHOUGH THIS AREA IS
   LOCATED NORTH OF WARM FRONT IN SERN MT...STRONG ELY BOUNDARY LAYER
   WINDS AND MODERATE INSTABILITY ARE LIKELY TO ENHANCE THE FORWARD
   SPEED OF THE SYSTEM AND POTENTIAL FOR DAMAGING WINDS.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
   MOTION VECTOR 23030.
   
   
   ...IMY

   SEL8
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 558
   NWS STORM PREDICTION CENTER NORMAN OK
   725 PM MDT MON JUL 6 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTHEASTERN MONTANA
   
   EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 725 PM UNTIL
   100 AM MDT.
   
   SCATTERED DAMAGING WINDS
   ISOLATED WIND GUSTS TO 80 MPH POSSIBLE
   WIDELY SCATTERED LARGE HAIL TO 1.5 INCHES IN DIAMETER
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 95
   STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES NORTH
   NORTHEAST OF GLASGOW MONTANA TO 60 MILES WEST SOUTHWEST OF
   GLENDIVE MONTANA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).
   
   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 553...WW 554...WW
   555...WW 556...WW 557...
   
   DISCUSSION...STRONG UPPER TROUGH WILL PUSH A LINE OF THUNDERSTORMS
   EASTWARD  ACROSS NORTHEASTERN MT OVERNIGHT. ALTHOUGH THIS AREA IS
   LOCATED NORTH OF WARM FRONT IN SERN MT...STRONG ELY BOUNDARY LAYER
   WINDS AND MODERATE INSTABILITY ARE LIKELY TO ENHANCE THE FORWARD
   SPEED OF THE SYSTEM AND POTENTIAL FOR DAMAGING WINDS.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
   MOTION VECTOR 23030.
   
   
   ...IMY

   SEL8
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 558
   NWS STORM PREDICTION CENTER NORMAN OK
   725 PM MDT MON JUL 6 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTHEASTERN MONTANA
   
   EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 725 PM UNTIL
   100 AM MDT.
   
   HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 95
   STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES NORTH
   NORTHEAST OF GLASGOW MONTANA TO 60 MILES WEST SOUTHWEST OF
   GLENDIVE MONTANA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).
   
   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 553...WW 554...WW
   555...WW 556...WW 557...
   
   DISCUSSION...STRONG UPPER TROUGH WILL PUSH A LINE OF THUNDERSTORMS
   EASTWARD  ACROSS NORTHEASTERN MT OVERNIGHT. ALTHOUGH THIS AREA IS
   LOCATED NORTH OF WARM FRONT IN SERN MT...STRONG ELY BOUNDARY LAYER
   WINDS AND MODERATE INSTABILITY ARE LIKELY TO ENHANCE THE FORWARD
   SPEED OF THE SYSTEM AND POTENTIAL FOR DAMAGING WINDS.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
   MOTION VECTOR 23030.
   
   
   ...IMY

   WOUS64 KWNS 070120
   WOU8
   
   BULLETIN - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 558
   NWS STORM PREDICTION CENTER NORMAN OK
   725 PM MDT MON JUL 6 2009
   
   SEVERE THUNDERSTORM WATCH 558 IS IN EFFECT UNTIL 100 AM MDT
   FOR THE FOLLOWING LOCATIONS
   
   MTC019-021-033-055-071-079-083-085-091-105-109-070700-
   /O.NEW.KWNS.SV.A.0558.090707T0125Z-090707T0700Z/
   
   MT 
   .    MONTANA COUNTIES INCLUDED ARE
   
   DANIELS              DAWSON              GARFIELD            
   MCCONE               PHILLIPS            PRAIRIE             
   RICHLAND             ROOSEVELT           SHERIDAN            
   VALLEY               WIBAUX              
   
   
   ATTN...WFO...GGW...
   
   
   

   SAW8 
   WW 558 SEVERE TSTM MT 070125Z - 070700Z
   AXIS..95 STATUTE MILES EAST AND WEST OF LINE..
   50NNE GGW/GLASGOW MT/ - 60WSW GDV/GLENDIVE MT/
   ..AVIATION COORDS.. 80NM E/W /44NNE GGW - 25N MLS/
   HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..70 KNOTS.
   MAX TOPS TO 450. MEAN STORM MOTION VECTOR 23030.
   
   LAT...LON 48860411 46770395 46770798 48860829
   
   THIS IS AN APPROXIMATION TO THE WATCH AREA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
   FOR WOU8.
   

Watch 558 Status Report Messages:

STATUS REPORT #4 ON WW 558

VALID 070555Z - 070640Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 N MLS TO
20 W GDV TO 30 W SDY TO 30 ENE OLF TO 40 N OLF TO 45 NNW OLF TO
65 N OLF.

FOR ADDITIONAL INFORMATION SEE SPC MESOSCALE DISCUSSION 1470.

..EDWARDS..07/07/09

ATTN...WFO...GGW...

&&

STATUS REPORT FOR WS 558 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

MTC019-021-079-083-085-091-109-070640-

MT 
.    MONTANA COUNTIES INCLUDED ARE

DANIELS 	     DAWSON		 PRAIRIE	     
RICHLAND	     ROOSEVELT		 SHERIDAN	     
WIBAUX		     
$$


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 558

VALID 070435Z - 070540Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NNW MLS
TO 35 SW OLF TO 50 NNW GGW.

FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1470.

..PETERS..07/07/09

ATTN...WFO...GGW...

&&

STATUS REPORT FOR WS 558 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

MTC019-021-055-079-083-085-091-105-109-070540-

MT 
.    MONTANA COUNTIES INCLUDED ARE

DANIELS 	     DAWSON		 MCCONE 	     
PRAIRIE 	     RICHLAND		 ROOSEVELT	     
SHERIDAN	     VALLEY		 WIBAUX 	     
$$


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 558

VALID 070350Z - 070440Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 NW MLS TO
20 SW GGW TO 60 NNW GGW.

..IMY..07/07/09

ATTN...WFO...GGW...

&&

STATUS REPORT FOR WS 558 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

MTC019-021-055-079-083-085-091-105-109-070440-

MT 
.    MONTANA COUNTIES INCLUDED ARE

DANIELS 	     DAWSON		 MCCONE 	     
PRAIRIE 	     RICHLAND		 ROOSEVELT	     
SHERIDAN	     VALLEY		 WIBAUX 	     
$$


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 558

VALID 070240Z - 070340Z

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

..PETERS..07/07/09

ATTN...WFO...GGW...

&&

STATUS REPORT FOR WS 558 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

MTC019-021-033-055-071-079-083-085-091-105-109-070340-

MT 
.    MONTANA COUNTIES INCLUDED ARE

DANIELS 	     DAWSON		 GARFIELD	     
MCCONE		     PHILLIPS		 PRAIRIE	     
RICHLAND	     ROOSEVELT		 SHERIDAN	     
VALLEY		     WIBAUX		 
$$


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.