SEL7
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 437
   NWS STORM PREDICTION CENTER NORMAN OK
   715 PM EDT TUE JUN 16 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          CENTRAL SOUTH CAROLINA
   
   EFFECTIVE THIS TUESDAY EVENING FROM 715 PM UNTIL 1100 PM EDT.
   
   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 45
   STATUTE MILES EITHER SIDE OF A LINE FROM 45 MILES NORTHEAST OF
   COLUMBIA SOUTH CAROLINA TO 40 MILES WEST OF ORANGEBURG SOUTH
   CAROLINA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).
   
   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 433...WW 434...WW
   435...WW 436...
   
   DISCUSSION...ISOLATED STORMS...SOME WITH SUPERCELL STRUCTURE...WILL
   LIKELY CONTINUE TO SPREAD SSEWD ALONG THE IMMEDIATE COOL SIDE OF A
   N-S BOUNDARY ACROSS CENTRAL SC.  STRONG SURFACE HEATING EARLIER IN
   THE AFTERNOON WILL HELP MAINTAIN SUBSTANTIAL SURFACE-BASED
   INSTABILITY INTO THE EARLY OVERNIGHT HOURS...WHILE VERTICAL SHEAR IS
   SOMEWHAT ENHANCED ALONG THE WWD MOVING BOUNDARY.  LARGE HAIL AND
   ISOLATED DAMAGING WINDS SHOULD BE THE MAIN SEVERE THREATS.
   
   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 33015.
   
   
   ...THOMPSON

   SEL7
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 437
   NWS STORM PREDICTION CENTER NORMAN OK
   715 PM EDT TUE JUN 16 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          CENTRAL SOUTH CAROLINA
   
   EFFECTIVE THIS TUESDAY EVENING FROM 715 PM UNTIL 1100 PM EDT.
   
   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 45
   STATUTE MILES EITHER SIDE OF A LINE FROM 45 MILES NORTHEAST OF
   COLUMBIA SOUTH CAROLINA TO 40 MILES WEST OF ORANGEBURG SOUTH
   CAROLINA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).
   
   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 433...WW 434...WW
   435...WW 436...
   
   DISCUSSION...ISOLATED STORMS...SOME WITH SUPERCELL STRUCTURE...WILL
   LIKELY CONTINUE TO SPREAD SSEWD ALONG THE IMMEDIATE COOL SIDE OF A
   N-S BOUNDARY ACROSS CENTRAL SC.  STRONG SURFACE HEATING EARLIER IN
   THE AFTERNOON WILL HELP MAINTAIN SUBSTANTIAL SURFACE-BASED
   INSTABILITY INTO THE EARLY OVERNIGHT HOURS...WHILE VERTICAL SHEAR IS
   SOMEWHAT ENHANCED ALONG THE WWD MOVING BOUNDARY.  LARGE HAIL AND
   ISOLATED DAMAGING WINDS SHOULD BE THE MAIN SEVERE THREATS.
   
   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 33015.
   
   
   ...THOMPSON

   WOUS64 KWNS 162312
   WOU7
   
   BULLETIN - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 437
   NWS STORM PREDICTION CENTER NORMAN OK
   715 PM EDT TUE JUN 16 2009
   
   SEVERE THUNDERSTORM WATCH 437 IS IN EFFECT UNTIL 1100 PM EDT
   FOR THE FOLLOWING LOCATIONS
   
   SCC003-009-011-017-025-027-037-039-055-057-061-063-065-071-075-
   079-081-085-170300-
   /O.NEW.KWNS.SV.A.0437.090616T2315Z-090617T0300Z/
   
   SC 
   .    SOUTH CAROLINA COUNTIES INCLUDED ARE
   
   AIKEN                BAMBERG             BARNWELL            
   CALHOUN              CHESTERFIELD        CLARENDON           
   EDGEFIELD            FAIRFIELD           KERSHAW             
   LANCASTER            LEE                 LEXINGTON           
   MCCORMICK            NEWBERRY            ORANGEBURG          
   RICHLAND             SALUDA              SUMTER              
   
   
   ATTN...WFO...CAE...
   
   
   

   SAW7 
   WW 437 SEVERE TSTM SC 162315Z - 170300Z
   AXIS..45 STATUTE MILES EITHER SIDE OF LINE..
   45NE CAE/COLUMBIA SC/ - 40W OGB/ORANGEBURG SC/
   ..AVIATION COORDS.. 40NM EITHER SIDE /40NE CAE - 34ESE IRQ/
   HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
   MAX TOPS TO 500. MEAN STORM MOTION VECTOR 33015.
   
   LAT...LON 33937998 33008098 33908211 34848113
   
   THIS IS AN APPROXIMATION TO THE WATCH AREA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
   FOR WOU7.
   

Watch 437 Status Report Messages:

STATUS REPORT #2 ON WW 437

VALID 170225Z - 170300Z

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

WW 437 IS SCHEDULED TO EXPIRE AT 170300Z.

FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1166.

..GRAMS..06/17/09

ATTN...WFO...CAE...

&&

STATUS REPORT FOR WS 437 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

SCC003-009-011-017-025-027-037-039-055-057-061-063-065-071-075-
079-081-085-170300-

SC 
.    SOUTH CAROLINA COUNTIES INCLUDED ARE

AIKEN		     BAMBERG		 BARNWELL	     
CALHOUN 	     CHESTERFIELD	 CLARENDON	     
EDGEFIELD	     FAIRFIELD		 KERSHAW	     
LANCASTER	     LEE		 LEXINGTON	     
MCCORMICK	     NEWBERRY		 ORANGEBURG	     
RICHLAND	     SALUDA		 SUMTER 	     
$$


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 437

VALID 170035Z - 170140Z

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

..GRAMS..06/17/09

ATTN...WFO...CAE...

&&

STATUS REPORT FOR WS 437 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

SCC003-009-011-017-025-027-037-039-055-057-061-063-065-071-075-
079-081-085-170140-

SC 
.    SOUTH CAROLINA COUNTIES INCLUDED ARE

AIKEN		     BAMBERG		 BARNWELL	     
CALHOUN 	     CHESTERFIELD	 CLARENDON	     
EDGEFIELD	     FAIRFIELD		 KERSHAW	     
LANCASTER	     LEE		 LEXINGTON	     
MCCORMICK	     NEWBERRY		 ORANGEBURG	     
RICHLAND	     SALUDA		 SUMTER 	     
$$


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.