..DANGEROUS HEAT EXPECTED ON TUESDAY INTO WEDNESDAY...

AN UNSEASONABLY WARM AND MOIST ATMOSPHERE WILL CONTINUE TO TAKE A
FIRM GRIP OF THE AREA ON TUESDAY AND WEDNESDAY. TEMPERATURES WILL
LIKELY CLIMB INTO THE MIDDLE TO UPPER 90S ACROSS NORTHERN ILLINOIS
AND NORTHWESTERN INDIANA ON TUESDAY. THESE TEMPERATURES...COMBINED
WITH DEW POINTS IN THE MIDDLE TO UPPER 60S WILL RESULT IN HEAT
INDICES CLIMBING ABOVE 100 DURING THE AFTERNOON HOURS. BECAUSE OF
THE SOUTHWESTERLY WIND COMPONENT...THIS DANGEROUS HEAT WILL ALSO
IMPACT AREAS NEAR THE LAKE. LITTLE RELIEF IS EXPECTED AT
NIGHT...ESPECIALLY IN URBAN AREAS...AS TEMPERATURES WILL LIKELY
REMAIN IN THE UPPER 70S TO NEAR 80 FOR OVERNIGHT LOWS. THIS
DANGEROUS HEAT WILL CONTINUE ON WEDNESDAY AS HEAT INDICES AGAIN
CLIMB TO 100 TO 105. COOLER CONDITIONS ARE EXPECTED BY WEDNESDAY
NIGHT AND THURSDAY AS A COLD FRONT MOVES ACROSS THE AREA.

THE COMBINATION OF HIGH TEMPERATURES AND HUMIDITY WILL CREATE A
SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF
FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE
SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.

CHILDREN AND PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES
UNDER ANY CIRCUMSTANCES. THIS IS ESPECIALLY TRUE DURING HOT
WEATHER WHEN THE CAR INTERIOR CAN REACH DANGEROUSLY HIGH
TEMPERATURES IN A MATTER OF MINUTES!