For your reading pleasure…
MESOSCALE DISCUSSION 0876
NWS STORM PREDICTION CENTER NORMAN OK
1132 PM CDT SAT MAY 10 2008
AREAS AFFECTED…SRN MIDDLE TN…NRN AL…NWRN GA
CONCERNING…TORNADO WATCH 300…302…
VALID 110432Z – 110630Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 300…302…CONTINUES.
04Z MESOANALYSIS PLACES A WARM FRONT ACROSS NERN AL INTO NWRN GA WITH A BOUNDARY LAYER CHARACTERIZED BY MID-UPR 60S DEW POINTS ALONG/S OF THE FRONT. THIS WILL CONTRIBUTE TO SUFFICIENT INSTABILITY TO SUPPORT TSTM DEVELOPMENT/MAINTENANCE DOWNSTREAM ACROSS NRN AL/NWRN GA THROUGH 08Z.
SUPERCELLS HAVE EVOLVED INTO BOW ECHOES AND WERE MOVING 290/40.
CURRENT EXTRAPOLATION HAS THE STORMS ARRIVING HUNTSVILLE AND CULLMAN BY 0530Z AND NEAR/N OF BIRMINGHAM/ONEONTA BETWEEN 06-0615Z.
PARTICULARLY DMGG WIND GUSTS ABOVE 65 KTS AND BOW HEAD TORNADOES/EMBEDDED SUPERCELL STRUCTURES WILL CONTINUE TO BE A THREAT AS THE ACTIVITY MOVES ACROSS NRN AL. STORMS COULD REACH NWRN/WCNTRL GA BY 0730-08Z.
OTHERWISE…ALONG/N OF THE WARM FRONT…TSTMS WILL LIKELY CONTINUE TO EVOLVE DOWNSTREAM INTO PARTS OF ERN TN. THERE APPEARS TO BE AN MCV FORMING OVER MIDDLE TN. THIS MAY AUGMENT LOW-LEVEL TURNING AND ISOLD TORNADOES WILL BE POSSIBLE. MAIN THREAT OVER MIDDLE/ERN TN WILL BE DMGG WIND GUSTS AND HAIL.
