ZCZC SPCPWOSPC ALL
   WOUS40 KWNS 091639
   OKZ000-TXZ000-100045-
   
   PUBLIC SEVERE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1139 AM CDT WED APR 09 2008
   
   ...SEVERE THUNDERSTORMS EXPECTED OVER PARTS OF THE SOUTHERN PLAINS
   LATER TODAY THROUGH THURSDAY MORNING...
   
   THE NWS STORM PREDICTION CENTER IN NORMAN OK IS FORECASTING THE
   DEVELOPMENT OF A FEW STRONG TORNADOES ALONG WITH VERY LARGE HAIL AND
   DAMAGING WINDS OVER PARTS OF THE SOUTHERN PLAINS LATER TODAY THROUGH
   THURSDAY MORNING.
   
   THE AREAS MOST LIKELY TO EXPERIENCE THIS ACTIVITY INCLUDE
   
          SOUTHERN OKLAHOMA
          A LARGE PART OF CENTRAL AND NORTHERN TEXAS
   
   SURROUNDING THE HIGHEST RISK AREA...THERE IS A SLIGHT RISK OF SEVERE
   THUNDERSTORMS FROM SOUTH TEXAS NORTH AND EAST INTO PARTS OF
   KANSAS...SOUTHWEST MISSOURI...ARKANSAS AND LOUISIANA
   
   A VERY STRONG HIGH-LEVEL STORM SYSTEM NOW OVER ARIZONA AND
   NEVADA...WITH 120 MPH JET STREAM WINDS...WILL SWEEP EAST INTO FAR
   WEST TEXAS AND EASTERN NEW MEXICO EARLY THURSDAY.  AS THIS
   OCCURS...A SURFACE LOW THAT WILL FORM THIS AFTERNOON OVER EASTERN
   NEW MEXICO AND MOVE NORTHEAST INTO SOUTHERN OKLAHOMA THURSDAY
   MORNING.
   
   SOUTHEASTERLY SURFACE WINDS ARE ALREADY SPREADING VERY WARM AND
   HUMID AIR NORTHWARD ACROSS CENTRAL INTO NORTHERN TEXAS.  THESE WINDS
   WILL INCREASE IN STRENGTH AND BREADTH THROUGH EARLY THURSDAY AS THE
   NEW MEXICO LOW HEADS EASTWARD.
   
   THE COMBINATION OF INCREASINGLY WARM AND HUMID AIR NEAR THE
   SURFACE...WITH THE FAST JET STREAM FLOW ALOFT...WILL CREATE A
   FAVORABLE ENVIRONMENT FOR SUSTAINED ROTATING THUNDERSTORMS CALLED
   SUPERCELLS FROM CENTRAL TEXAS INTO SOUTHERN OKLAHOMA.
   
   SCATTERED STORMS WITH HAIL MAY OCCUR THROUGHOUT THE DAY TODAY ACROSS
   WESTERN AND NORTHERN TEXAS AND SOUTHERN OKLAHOMA.  MORE SIGNIFICANT
   STORMS...HOWEVER...LIKELY WILL DEVELOP LATER THIS AFTERNOON AND
   TONIGHT FROM WEST CENTRAL TEXAS NORTH AND EAST ACROSS THE RED RIVER
   VALLEY INTO SOUTHERN OKLAHOMA.  ESPECIALLY IN CENTRAL AND NORTH
   TEXAS...THESE STORMS MAY PRODUCE STRONG TORNADOES...IN ADDITION TO
   VERY LARGE HAIL AND DAMAGING WINDS.
   
   THE THREAT FOR TORNADOES...HAIL AND DAMAGING WINDS LIKELY WILL
   CONTINUE OVER PARTS OF TEXAS AND OKLAHOMA THROUGH THURSDAY MORNING. 
   THIS THREAT WILL ALSO EXPAND NORTH AND EAST ACROSS THE OZARKS INTO A
   LARGE PART OF THE MISSISSIPPI AND LOWER TENNESSEE VALLEYS LATER
   THURSDAY AND THURSDAY NIGHT.
   
   THIS IS POTENTIALLY A VERY DANGEROUS SITUATION. THOSE IN THE
   THREATENED AREA ARE URGED TO REVIEW SEVERE WEATHER SAFETY RULES AND
   TO LISTEN TO RADIO...TELEVISION...AND NOAA WEATHER RADIO FOR
   POSSIBLE WATCHES...WARNINGS...AND STATEMENTS LATER TODAY.
   
   ..HALES.. 04/09/2008
   
   $$