SEVERE WEATHER ON TAP TODAY

Yesterday's dynamic storms produced severe weather over the nations breadbasket states and south has continued to produce severe weather all night. Severe weather is in IL now and will be here mid to late morning.

This is a powerful system!

From the Indianapolis NWS Office

...DANGEROUS SEVERE WEATHER EXPECTED THIS EVENING...


FORECAST FOCUS IS ON CHCS OF SVR WX TODAY AND TONIGHT.

THUNDERSTORMS WILL BE ONGOING ACRS THE FA AT THE START OF THE PD.
SPC HAS CONCERNS ABOUT ONGOING SVR THREAT WITH THESE STORMS. TIMING
AND LACK OF SFC INSTABILITY WOULD ARGUE AGAINST THIS BUT WITH A
STRONG LL JET OF AROUND 60 KTS AND AN EXCEPTIONAL AMOUNT OF SHEAR
COULD STILL SEE A FEW SVR STORMS EARLY THIS MORNING. THESE STORMS
SHUD MOVE OUT OF THE AREA BY LATE MORNING. LAYER RH VALUES SHOW A
DRY SLOT MOVING INTO THE FA AT THIS TIME AND THIS MATCHES NICELY
WITH THE DRY SLOT CURRENTLY SEEN IN WATER VAPOR LOOP BEHIND THE
STORMS. THUS EXPECT CLOUD CVR TO DECREASE BY EARLY AFTERNOON. THIS
DECREASE IN CLD CVR WILL ALLOW INSTABILITY TO INCREASE AND GFS/NAM
HAVE SFC BASED CAPES OF AROUND 1000 OR MORE ACRS THE AREA BY 0Z. JET
MAX OF OVR 100 KTS WILL HAVE ROUNDED THE BASE OF THE TROF AND BE
SWINGING UP THRU INDIANA FROM 0Z-12Z FRI. LL JET STILL LOOKS LIKE
ABOUT 50KTS OUT OF THE SW DURING THIS TIME AHEAD OF THE COLD FNT.
0-6 KM BULK SHEAR IS 70-80 KTS. 0-3KM SRH IS OVR 300 UNTIL AFTER 6Z.
SPC SREFS GIVE A GREATER THAN 90 PERCENT PROBABILITY OF 0-1KM
HELICITY OF 150 AT 0Z. LCLS AND LFCS ARE LOW. SIG TOR PARAMETER IS
OVER 4 ACRS THE AREA FOR THIS TIME AS WELL. ALL SIGNS ARE POINTING
TO TORNADO POTENTIAL FOR THIS EVENING. BOW ECHOES WITH SIGNIFICANT
DAMAGING STRAIGHT LINE WINDS ARE ALSO FAVORED. IF MODEL TIMING IS
CORRECT BEST CHCS WILL BE FROM 0-6Z...BUT WILL EXTEND LIKELY POPS
BACK TO 21Z IN CASE THINGS GET STARTED A LITTLE EARLY.