SEL2
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 212
   NWS STORM PREDICTION CENTER NORMAN OK
   900 PM CDT MON APR 21 2008
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          CENTRAL AND SOUTHERN OKLAHOMA
   
   EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 900 PM UNTIL
   200 AM CDT.
   
   TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND
   GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
   AREAS.
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 45 STATUTE
   MILES EAST AND WEST OF A LINE FROM 45 MILES NORTH OF CHANDLER
   OKLAHOMA TO 10 MILES SOUTH OF ARDMORE OKLAHOMA.  FOR A COMPLETE
   DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
   (WOUS64 KWNS WOU2).
   
   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.
   
   OTHER WATCH INFORMATION...CONTINUE...WW 211...
   
   DISCUSSION...ISOLATED TSTM IN SW OK THAT FORMED EARLIER THIS EVENING
   ALONG MERGING PREFRONTAL BOUNDARIES APPEARS TO HAVE BECOME A
   SUSTAINED SUPERCELL.  GIVEN INCREASINGLY MOIST LOW-LEVEL
   ENVIRONMENT... POTENTIAL FOR A SLIGHT NOCTURNAL INCREASE IN THE SLY
   LLJ...AND GRAZING INFLUENCE OF ERN CO/WRN KS UPR TROUGH...THREAT
   WILL EXIST FOR A TORNADO OR TWO IN ADDITION TO VERY LARGE HAIL AND
   LOCALLY DMGG WIND.
   
   AVIATION...TORNADOES AND 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 26020.
   
   
   ...CORFIDI

   SEL2
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 212
   NWS STORM PREDICTION CENTER NORMAN OK
   900 PM CDT MON APR 21 2008
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          CENTRAL AND SOUTHERN OKLAHOMA
   
   EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 900 PM UNTIL
   200 AM CDT.
   
   TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND
   GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
   AREAS.
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 45 STATUTE
   MILES EAST AND WEST OF A LINE FROM 45 MILES NORTH OF CHANDLER
   OKLAHOMA TO 10 MILES SOUTH OF ARDMORE OKLAHOMA.  FOR A COMPLETE
   DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
   (WOUS64 KWNS WOU2).
   
   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.
   
   OTHER WATCH INFORMATION...CONTINUE...WW 211...
   
   DISCUSSION...ISOLATED TSTM IN SW OK THAT FORMED EARLIER THIS EVENING
   ALONG MERGING PREFRONTAL BOUNDARIES APPEARS TO HAVE BECOME A
   SUSTAINED SUPERCELL.  GIVEN INCREASINGLY MOIST LOW-LEVEL
   ENVIRONMENT... POTENTIAL FOR A SLIGHT NOCTURNAL INCREASE IN THE SLY
   LLJ...AND GRAZING INFLUENCE OF ERN CO/WRN KS UPR TROUGH...THREAT
   WILL EXIST FOR A TORNADO OR TWO IN ADDITION TO VERY LARGE HAIL AND
   LOCALLY DMGG WIND.
   
   AVIATION...TORNADOES AND 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 26020.
   
   
   ...CORFIDI

   WOUS64 KWNS 220153
   WOU2
   
   BULLETIN - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH OUTLINE UPDATE FOR WT 212
   NWS STORM PREDICTION CENTER NORMAN OK
   900 PM CDT MON APR 21 2008
   
   TORNADO WATCH 212 IS IN EFFECT UNTIL 200 AM CDT FOR THE
    FOLLOWING LOCATIONS
   
   OKC019-027-029-037-049-063-069-081-083-087-099-107-109-119-123-
   125-133-220700-
   /O.NEW.KWNS.TO.A.0212.080422T0200Z-080422T0700Z/
   
   OK 
   .    OKLAHOMA COUNTIES INCLUDED ARE
   
   CARTER               CLEVELAND           COAL                
   CREEK                GARVIN              HUGHES              
   JOHNSTON             LINCOLN             LOGAN               
   MCCLAIN              MURRAY              OKFUSKEE            
   OKLAHOMA             PAYNE               PONTOTOC            
   POTTAWATOMIE         SEMINOLE            
   
   
   ATTN...WFO...OUN...TSA...
   
   
   

   SAW2 
   WW 212 TORNADO OK 220200Z - 220700Z
   AXIS..45 STATUTE MILES EAST AND WEST OF LINE..
   45N CQB/CHANDLER OK/ - 10S ADM/ARDMORE OK/
   ..AVIATION COORDS.. 40NM E/W /51WNW TUL - 8ESE ADM/
   HAIL SURFACE AND ALOFT..2.5 INCHES. WIND GUSTS..60 KNOTS.
   MAX TOPS TO 500. MEAN STORM MOTION VECTOR 26020.
   
   LAT...LON 36369601 34139623 34139780 36369762
   
   THIS IS AN APPROXIMATION TO THE WATCH AREA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
   FOR WOU2.
   

Watch 212 Status Report Messages:

STATUS REPORT #4 ON WW 212

VALID 220545Z - 220640Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 WSW MLC
TO 20 SE CHK TO 20 SE END TO 30 NNE CQB TO 25 SSE CQB TO 35 NNW
MLC.

..MEAD..04/22/08

ATTN...WFO...OUN...TSA...

&&

STATUS REPORT FOR WT 212 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

OKC027-063-081-083-087-109-119-125-133-220640-

OK 
.    OKLAHOMA COUNTIES INCLUDED ARE

CLEVELAND	     HUGHES		 LINCOLN	     
LOGAN		     MCCLAIN		 OKLAHOMA	     
PAYNE		     POTTAWATOMIE	 SEMINOLE	     
$$


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 212

VALID 220435Z - 220540Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NW MLC TO
40 N ADM TO 20 SSE CHK.

FOR ADDITIONAL INFORMATION SEE SPC MESOSCALE DISCUSSION 680.

..EDWARDS..04/22/08

ATTN...WFO...OUN...TSA...

&&

STATUS REPORT FOR WT 212 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

OKC027-037-063-081-083-087-107-109-119-125-133-220540-

OK 
.    OKLAHOMA COUNTIES INCLUDED ARE

CLEVELAND	     CREEK		 HUGHES 	     
LINCOLN 	     LOGAN		 MCCLAIN	     
OKFUSKEE	     OKLAHOMA		 PAYNE		     
POTTAWATOMIE	     SEMINOLE		 
$$


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 212

VALID 220340Z - 220440Z

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

FOR ADDITIONAL INFORMATION SEE SPC MESOSCALE DISCUSSION 680.

..EDWARDS..04/22/08

ATTN...WFO...OUN...TSA...

&&

STATUS REPORT FOR WT 212 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

OKC027-037-063-081-083-087-107-109-119-125-133-220440-

OK 
.    OKLAHOMA COUNTIES INCLUDED ARE

CLEVELAND	     CREEK		 HUGHES 	     
LINCOLN 	     LOGAN		 MCCLAIN	     
OKFUSKEE	     OKLAHOMA		 PAYNE		     
POTTAWATOMIE	     SEMINOLE		 
$$


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 212

VALID 220235Z - 220340Z

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

..EDWARDS..04/22/08

ATTN...WFO...OUN...TSA...

&&

STATUS REPORT FOR WT 212 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

OKC019-027-029-037-049-063-069-081-083-087-099-107-109-119-123-
125-133-220340-

OK 
.    OKLAHOMA COUNTIES INCLUDED ARE

CARTER		     CLEVELAND		 COAL		     
CREEK		     GARVIN		 HUGHES 	     
JOHNSTON	     LINCOLN		 LOGAN		     
MCCLAIN 	     MURRAY		 OKFUSKEE	     
OKLAHOMA	     PAYNE		 PONTOTOC	     
POTTAWATOMIE	     SEMINOLE		 
$$


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.