Tornado threat continues for at least another 2 or 3 hours. Watch out Jasper and Cullman for big storm now entering Walker County. Other storms moving in from MS. Storms may be organizing in parts of southern Tuscaloosa and Jefferson counties, don’t know yet.
MESOSCALE DISCUSSION 0175
NWS STORM PREDICTION CENTER NORMAN OK
0241 AM CST WED FEB 06 2008
AREAS AFFECTED…PORTIONS SRN/ERN MS…WRN/CENTRAL/NRN
AL…MIDDLE-ERN TN.
CONCERNING…TORNADO WATCH 41…43…
ADDITIONAL WW ISSUANCES ARE PROBABLE BEFORE THESE WOULD EXPIRE AT 11Z. TORNADO THREAT PERSISTS ACROSS WW AREAS AND SHOULD FOR AT LEAST ANOTHER 2-3 HOURS…WITH GREATEST POTENTIAL FOR LONG-LIVED/DAMAGING
TORNADOES ACCOMPANYING DISCRETE SUPERCELLS DEVELOPING AHEAD OF PRIMARY CONVECTIVE BAND. SHORTER-LIVED/WEAKER TORNADOES ALSO ARE POSSIBLE WITH PRIMARY TSTM LINE…FROM WHICH DAMAGING GUSTS WILL BE PRIMARY THREAT.
MODIFIED RAOBS AND RUC SOUNDINGS INDICATE EFFECTIVE INFLOW PARCELS REMAIN ROOTED NEAR GROUND FOR SFC THETAE VALUES CORRESPONDING TO TEMPS AROUND 65 F AND DEW POINTS AOA ABOUT 63 F. SFC MESOANALYSIS SHOWS THIS AIR MASS ALREADY COVERING LARGE PART OF AL. KINEMATIC PROFILES WILL REMAIN VERY STRONG…WITH ELONGATED HODOGRAPHS YIELDING 0-1 KM SRH EXCEEDING 300 J/KG IN MANY AREAS…AND EFFECTIVE SHEAR 50-60 KT.
..EDWARDS.. 02/06/2008
