SPC Issues Moderate Risk for Tornadoes

[PurdueWx80]

I don't recall ever seeing the SPC issue a moderate risk for a tropical storm. While we have yet to see a major supercell outbreak, a little more heating will allow things to explode momentarily. Tornadoes look to be a HUGE problem in the SE again today.

SOUTHEAST...
REFERENCE WW/S 828...829...830 AND LATEST SWOMCD PRODUCTS FOR
FURTHER DETAILS. CENTER OF IVAN APPEARS TO BE OVER DALLAS COUNTY AL
AT 16Z MOVING NWD AT 15-20 KT. LARGE AREA OF ENHANCED SHEAR EXTENDS
EAST OF CIRCULATION CENTER ACROSS MUCH OF ERN AL INTO GA WHERE LOW
LEVEL HELICITIES IN EXCESS OF 250 M2/S2 WILL BE COMMON. LATEST
SURFACE ANALYSES INDICATES WELL DEFINED E-W ORIENTED SURFACE FRONT
EXTENDS FROM SERN NC WSWWD INTO CENTRAL GA...SOUTH OF WHICH AN AXIS
OF 80+F TEMPERATURES IS ENHANCING INSTABILITY. EXPECT A
CONCENTRATED ZONE OF SHORT-LIVED SUPERCELL TORNADOES INTO CENTRAL GA
AND E-CENTRAL AL ALONG AND SOUTH OF THIS FRONT WHERE GREATEST
COMBINATION OF LOW LEVEL SHEAR AND INSTABILITY WILL BE COLLOCATED.
OUTSIDE OF THIS AXIS...ISOLATED TORNADOES CAN BE EXPECTED WITH
STRONGER CELLS ROTATING AROUND IVAN AS IT LIFTS NNEWD INTO THE SRN
APPALACHIANS TONIGHT.

http://www.spc.noaa.gov