SEVERE THUNDERSTORMS POSSIBLE TOMORROW IN NORTHERN ILLINOIS

THIS IMAGE IS A SKEW-T AT 15z-9amCDT-SUNDAY. 

SWEAT=374.8=POSSIBLE SEVERE T-STORMS

K INDEX=25.4=ISOLATED T-STORMS 20-40% CHANCE OF T-STORMS

TOTAL TOTALS INDEX=55.2=HEAVY T-STORMS,TORNADOES POSSIBLE TO LIKELY

CROSS TOTALS INDEX=25.27=ISOLATED/FEW T-STORMS

VERTICAL TOTALS INDEX=29.77=SCATTERED,MORE NUMEROUS T-STORMS

THOMPSON INDEX=31.4=T-STORMS

STORM RELATIVE HELICITY=52.8=NOTHING

ENERGY HELICITY INDEX=.9=SUPERCELLS/TORNADOES UNLIKELY

SHOWALTER INDEX=-3.60= SEVERE T-STORMS

SKEW-T AT 18z-12pmCDT-SUNDAY

SWEAT=396=SEVERE T-STORMS POSSIBLE TORNADOES

K INDEX=33=NUMEROUS T-STORMS 60-80% CHANCE OF T-STOTMS

LIFTED INDEX=-6.6=EXTREMELY UNSTABLE, SUPPORTS WIDESPREAD SEVERE WEATHER

TTI=57.4=HEAVY T-STORMS WITH TORNADOES LIKELY 
CTI=26.45=SCATTERED/NUMEROUS STRONG T-STORMS

VTI=30.77=NUMEROUS STRONG T-STORMS

THOMPSON I=39.5=T-STORMS VERY CLOSE TO SEVERE

SRH=108.8=NOTHING

EHI=1.6=SUPERCELLS/TORNADOES POSSIBLE

SHOWALTER I=-5.15=SEVERE THUNDERSTORMS

SKEW-T AT 21z-3pmCDT-SUNDAY

SWEAT=332.6=POSSIBLE SEVERE T-STORMS

KI=34.2=NUMEROUS T-STORMS 60-80% CHANCE

LI=-5.1=VERY UNSTABLE, SUPPORTS SEVERE T-STORMS

TTI=54.4=USUALLY HEAVY T-STORMS, TORNADO POSSIBLE

CTI=24.49=ISOLATED/FEW T-STORMS

VTI=29.71=NUMEROUS STRONG T-STORMS

THOMPSON I=39.3=T-STORMS VERY CLOSE TO SEVERE

SRH=39.4=NOTHING

EHI=.2=SUPERCELLS/TORNADOES VERY UNLIKELY 

SHOWALTER I=-3.07=SEVERE THUNDERSTORMS

THE CAPE VALUES FOR THESE SKEW-T'S ARE GOING TO RANGE FROM 2534.6-2856.9 j/kg. CINH RANGING FROM -16.3-0.0 j/kg(VERY WEAK CAP). THE THUNDERSTORMS WILL GENERALLY BE COMING FROM THE SOUTHWEST(230 degrees) AT AROUND 38 MPH(33 knots). LOOK FOR STORMS TO DEVELOP ARORND 2-4pm I NORTH CENTAL ILLINOIS. SINCE THERE IS A COLD FRONT AND THERE ARE QUITE A BOAT LOAD OF INGREDIENTS FOR SEVERE THUNDERSTORMS, KEEP YOUR EYES ON THE SKY, HAVE YOUR WEATHER RADIO ON AND LISTEN FOR UPDATES ON SEVERE WEATHER, ALSO LISTEN TO THE TV AND/OR RADIO FOR SEVERE WEATHER WARNINGS. 

EVERYONE STAY SAFE AND HAVE A GOOD NIGHT AND A VERY GOOD SUNDAY.  

THESE SKEW-T IMAGES ARE FROM, http://www.wxcaster.com/etaskewts.htm .