ZCZC SPCPWOSPC ALL
   WOUS40 KWNS 101102
   ARZ000-LAZ000-OKZ000-TXZ000-101900-
   
   PUBLIC SEVERE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0502 AM CST TUE FEB 10 2009
   
   ...SEVERE WEATHER OUTBREAK EXPECTED OVER THE ARKLATEX LATER THIS
   AFTERNOON AND TONIGHT...
   
   THE NWS STORM PREDICTION CENTER IN NORMAN OK IS FORECASTING THE
   DEVELOPMENT OF A FEW STRONG...LONG-TRACK TORNADOES AND WIDESPREAD
   DAMAGING WINDS OVER PARTS OF THE ARKLATEX LATER THIS AFTERNOON AND
   TONIGHT.
   
   THE AREAS MOST LIKELY TO EXPERIENCE THIS ACTIVITY INCLUDE
   
          WESTERN AND CENTRAL ARKANSAS
          NORTHWEST LOUISIANA
          EASTERN OKLAHOMA
          NORTH-CENTRAL AND NORTHEAST TEXAS
   
   ELSEWHERE...SEVERE STORMS ARE ALSO POSSIBLE FROM THE MID MISSISSIPPI
   VALLEY INTO CENTRAL AND SOUTHEAST TEXAS.
   
   A POWERFUL WINTER STORM SYSTEM OVER THE LOWER COLORADO VALLEY THIS
   MORNING WILL MOVE EAST THROUGH THE SOUTHERN ROCKIES INTO THE
   SOUTHERN PLAINS BY TONIGHT.  LOW-LEVEL MOISTURE WILL CONTINUE TO
   INCREASE TODAY OVER LOWER ELEVATIONS OF THE SOUTHERN PLAINS INTO
   LOWER MISSISSIPPI VALLEY AS SOUTHERLY WINDS STRENGTHEN IN ADVANCE OF
   THE UPPER-LEVEL STORM SYSTEM.  THIS MOISTURE WILL COMBINE WITH
   DAYTIME HEATING AND COOLING TEMPERATURES ALOFT TO CREATE A
   MODERATELY UNSTABLE AIR MASS BY AFTERNOON GENERALLY ALONG AND EAST
   OF THE I-35 CORRIDOR OF OKLAHOMA AND TEXAS.
   
   RAPID THUNDERSTORM DEVELOPMENT IS EXPECTED BY MID TO LATE AFTERNOON
   ALONG A DRYLINE FROM NEAR OR SOUTH OF OKLAHOMA CITY SOUTHWARD TO THE
   DALLAS-FORT WORTH METROPLEX AS THE APPROACHING UPPER-LEVEL SYSTEM
   BEGINS TO EXERT AN INFLUENCE ON THE DESTABILIZING AIR MASS.  THE
   COMBINATION OF STRONG VERTICAL SHEAR AND A MODERATELY UNSTABLE AND
   EXPANDING WARM SECTOR SUGGESTS THE LIKELIHOOD OF A FEW SUPERCELLS
   CAPABLE OF PRODUCING STRONG...POTENTIALLY LONG-TRACKED TORNADOES. 
   THIS TORNADO THREAT APPEARS TO BE GREATEST OVER SOUTHEAST
   OKLAHOMA...NORTHEAST TEXAS...WEST-CENTRAL AND SOUTHWEST ARKANSAS
   INTO NORTHWEST LOUISIANA LATE THIS AFTERNOON INTO TONIGHT.
   
   ADDITIONAL STORMS...LIKELY IN THE FORM OF A SQUALL LINE...ARE
   EXPECTED TO DEVELOP OVER PARTS OF EASTERN OKLAHOMA INTO EASTERN
   TEXAS TONIGHT AS A FAST-MOVING PACIFIC FRONT OVERTAKES THE DRYLINE. 
   WHILE A FEW TORNADOES AND SOME HAIL WILL BE POSSIBLE WITH THESE
   STORMS...IT APPEARS THAT DAMAGING WINDS WILL BE THE PRIMARY SEVERE
   WEATHER HAZARD.  THIS DAMAGING WIND THREAT WILL LIKELY CONTINUE
   EASTWARD INTO PARTS OF ARKANSAS AND LOUISIANA OVERNIGHT.
   
   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.
   
   ..MEAD.. 02/10/2009
   
   $$