>>> IT WAS A BEAUTIFUL DAY FOR BASEBALL'S RETURN, BUT TOMORROW FORECASTERS ARE PREDICTING A DIFFERENT OUTLOOK.

THE WEATHER SERVICE THAT STARTING AROUND 3:00 P.M.

THE CHICAGO AREA WILL SEE DESTRUCTIVE WINDS AND THE POSSIBILITY OF SEVERAL TORNADOES .

BUCKLE UP, THEY ARE WARNING YOU TO BE PREPARED.

HERE TO EXPLAIN WHAT THIS MEANS TO YOU AND HOW TO BE PREPARED IS SCOTT, HAD THE SENSING DEPARTMENT IN THE ENVIRONMENTAL SCIENCE DIVISION.

SCOTT, THAT IS A JOB I WENT FOR THEN I GOT THIS JOB AND YOU GOT THAT JOB.

TELL US WHAT IS IN STORE FOR US TOMORROW.

>> THERE IS SOME HEAVY WEATHER.

THE STORMS WILL INITIATE ON THE ILLINOIS, IOWA BORDER AND THEY CAN START INDIVIDUAL STORM SYSTEMS IS THE ROLE ACROSS THROUGH FORMING A LINEAR CONNECTIVE SYSTEM.

THIS WILL MOVE ABOUT 50 MILES PER HOUR.

IT WILL BE HARD TO PREDICT THE EXACT TIMING.

IF YOU HAVE PLANS TOMORROW AFTERNOON BETWEEN 4:00 AND 7:00 P.M. TIME FRAME YOU MIGHT WANT TO RECONSIDER THEM.

>> ESPECIALLY, BE PREPARED TO NOT BE ON THE ROAD AT THAT TIME.

BUT KIND OF WIND GUSTS ARE YOU EXPECTING?

>> THEY WILL HAVE ABOUT 5% CHANCE OF TORNADOES WITH A 25 MILE-PER-HOUR CIRCLE.

THE WIND GUSTS WILL BE GREATER THAN 50 MILES PER HOUR AND EVEN STRONGER IN SOME OF THOSE STORMS.

WE WILL ACTUALLY GET DESTRUCTIVE WINDS, 75 MILES PER HOUR IF YOU ARE CAUGHT IN THE WORST PART OF THOSE STORMS.

>> DO WE KNOW , AT THIS POINT CAN WE PINPOINT WHERE THE GREATEST RISK OF THOSE HIGH WIND GUSTS WOULD BE?

>> AT THE MOMENT, THE GREATEST RISK IS TOWARD THE WEST AS THEY ROLLED THROUGH THE DeKALB AREA.

IT WILL BE A RACE AGAINST SUNSET.

THE FASTER THAT STORM SYSTEM MOVES THE MORE HEAT WILL GO INTO THE STORMS AND THE GREATER RISK THERE WILL BE TO THE CHICAGO AREA.

>> WE ARE GOING TO HAVE SOME HEAT IN THE MORNING AND DURING THE EARLY PART OF THE DAY, TOMORROW.

>> WE GOING TO GET INTO THE 60s TOMORROW.

>> BUT, DON'T GET USED TO IT.

YOU DO HAVE SOME TIPS.

GIVE US A RUNDOWN OF HOW PEOPLE SHOULD PREPARE FOR STORMS LIKE THIS, IN GENERAL.

>> IT IS IMPORTANT TO HAVE A PLAN AND KNOW WHAT YOU ARE GOING TO DO.

MAKE THE GRAB KIT, IN KIT WITH PRESCRIPTION MEDICINES , FIRST-AID KITS , CLOTHING, FOOD AND HAVE A WAY TO GET AWAY FROM THE WARNINGS AT THE NATIONAL WEATHER SERVICE.

>> PART OF THAT IS HAVING AN OLD-FASHIONED RADIO THAT IS NOT CONNECTED TO THE INTERNET.

>> RIGHT.

IF YOU DON'T HAVE THAT YOU MIGHT BE WAITING FOR THE ALL CLEAR.

A WEATHER RADIO IS THE BEST THING TO HAVE.

>> IS THIS NORMAL AS WINTER TURNS INTO SPRING THIS TIME OF YEAR?

>> IT IS THAT TIME OF YEAR WHEN THE WEATHER AT THE SURFACE WHERE WE LIVE IS MORE SPRINGLIKE AND WE STILL HAVE THE COLD AIR ABOVE US FROM WINTER.

THAT IS COLD MOIST AIR BELOW AND COLD AIR UP MAKES THE ATMOSPHERE UNSTABLE.