La NOAA ha lanzado un tornado watch en la zona donde me encuentro (Jonesboro):
URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 267
   NWS STORM PREDICTION CENTER NORMAN OK
   305 PM CDT SUN APR 30 2006   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF    
          NORTHEAST ARKANSAS
          SOUTHERN ILLINOIS
          FAR WEST KENTUCKY
          SOUTHEAST MISSOURI
          FAR WEST TENNESSEE   
   EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 305 PM UNTIL 900
   PM 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 50 STATUTE
   MILES EAST AND WEST OF A LINE FROM 20 MILES NORTH NORTHWEST OF
   MOUNT VERNON ILLINOIS TO 25 MILES SOUTHEAST OF JONESBORO
   ARKANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).   
   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 266...   
   DISCUSSION...SEVERE THUNDERSTORMS CONTINUE TO DEVELOP ACROSS ERN MO
   INTO CENTRAL IL.  STORMS ARE MOVING EWD INTO REGION OF INCREASINGLY
   FAVORABLE SHEAR AND INSTABILITY FOR FORMATION OF SUPERCELLS.  THIS
   WILL ENHANCE POTENTIAL FOR TORNADOES AND LARGE HAIL.   
   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
   450. MEAN STORM MOTION VECTOR 24030.      
   ...HALES
Os dejo también la discusión sobre la mesoscala:

 MESOSCALE DISCUSSION 0703
   NWS STORM PREDICTION CENTER NORMAN OK
   0230 PM CDT SUN APR 30 2006   
   AREAS AFFECTED...PARTS OF NE AR...SE MO...WRN TN...WRN KY INTO SRN
   IL   
   CONCERNING...SEVERE THUNDERSTORM WATCH 266...   
   VALID 301930Z - 302130Z   
   CONVECTIVE TRENDS ARE BEING MONITORED FOR THE POSSIBILITY OF AN
   INCREASING TORNADO THREAT...MAINLY IN AND AROUND THE MISSOURI
   BOOTHEEL.   
   AS A MID-LEVEL COLD CORE/SPEED MAXIMA CONTINUE TO SHIFT EAST
   NORTHEAST OF THE OZARK PLATEAU LATE THIS AFTERNOON...STRONGEST
   LOW-LEVEL WARM ADVECTION IS PROGGED TO BECOME FOCUSED ACROSS THE
   MISSOURI BOOTHEEL AREA AND ADJACENT PORTIONS OF SURROUNDING STATES. 
   THIS WILL BECOME JUXTAPOSED WITH LINGERING NARROW LOW-LEVEL MOIST
   AXIS ALONG THE MISSISSIPPI RIVER...WHERE BOUNDARY LAYER WINDS SEEM
   LIKELY TO MAINTAIN A MORE BACKED/SOUTHERLY ORIENTATION BENEATH 30 KT
   SOUTHWESTERLY FLOW AROUND 850 MB.  GIVEN BETTER LOW-LEVEL
   THERMODYNAMIC ENVIRONMENT AND MORE FAVORABLE LOW-LEVEL
   HODOGRAPHS...POTENTIAL FOR TORNADOES MAY INCREASE AS STRONGER STORMS
   DEVELOP INTO AREA BOUNDED BY JONESBORO AR/POPLAR BLUFF MO/CARBONDALE
   IL/DYERS BURG TN THROUGH 22-23Z.   
   ..KERR.. 04/30/2006      
   ATTN...WFO...PAH...MEG...LSX...   
   36559084 37509039 37988956 37778877 37098863 35908922
   35659022 35899074 
Ahora mismo el cielo está tranquilito aunque se empiezan a ver cumulonimbos formándose hacia el oeste de donde me encuentro. El día está un poco bochornoso, así que creo que tormenta severa por lo menos tendremos. A ver como evolucionan las cosas.
Un saludo