Eye to the sky late tonight. Tornado watches out to our far west, however, that storm system is expected to come through the area late tonight. Stay tuned, read outlook below.

.DAY ONE...TONIGHT.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS...THE STRONGEST MAY PRODUCE...

HAIL TO THE SIZE OF QUARTERS...
DAMAGING WINDS IN EXCESS OF 60 MPH...
ISOLATED TORNADOES...
HEAVY RAIN...WHICH MAY PRODUCE LOCALIZED FLOODING.

AREAS AFFECTED AND TIMING:

SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS EVENING
AND CONTINUE INTO THE OVERNIGHT HOURS...MOVING EAST OF THE AREA
BY MORNING.

DISCUSSION:

LOW PRESSURE OVER EASTERN NEBRASKA WILL MOVE EAST ACROSS IOWA
THIS EVENING...REACHING NORTHERN ILLINOIS BY WEDNESDAY MORNING.
THIS LOW WILL PROVIDE THE FOCUS FOR THUNDERSTORM DEVELOPMENT
THIS EVENING. A WARM FRONT EXTENDING EAST FROM THIS LOW IS
EXPECTED TO LIFT ACROSS AREAS SOUTH OF INTERSTATE 80 THIS
EVENING. THE MAIN SEVERE WEATHER THREAT FROM THESE THUNDERSTORMS
IS EXPECTED TO BE LARGE HAIL. HOWEVER...THUNDERSTORMS THAT
DEVELOP NEAR OR SOUTH OF THE WARM FRONT WILL HAVE THE POTENTIAL
TO PRODUCE DAMAGING WIND GUSTS AND THE POTENTIAL FOR AN ISOLATED
TORNADO.

HEAVY RAINFALL IS EXPECTED WITH THE STRONGEST THUNDERSTORMS.
RAINFALL AMOUNTS MAY EXCEED ONE INCH IN SOME AREAS. THE GROUND IS
ALREADY SATURATED IN MANY AREAS ACROSS NORTHERN ILLINOIS AND THIS
ADDITIONAL HEAVY RAIN MAY CAUSE FURTHER RISES ON RIVERS AS WELL AS
LOCALIZED FLOODING.

RIVER LEVELS WILL CONTINUE TO RISE ALONG THE DES PLAINES...
ROCK... FOX AND PECATONICA RIVERS TODAY AND TONIGHT.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

SCATTERED THUNDERSTORMS ARE POSSIBLE AGAIN WEDNESDAY AFTERNOON...
WITH THE POTENTIAL FOR SOME OF THE STORMS TO PRODUCE SMALL HAIL.

RIVER LEVELS ARE EXPECTED TO REMAIN NEAR OR ABOVE FLOOD STAGE
ALONG THE DES PLAINES... ROCK... FOX AND PECATONICA RIVERS.