Isaac spawning T-Storms and Tornados In This Area Labor Day Weekend

September 1, 2012
By
At 5.19 A today the National Weather Service issued the following Hazardous Weather Outlook for Northeast Illinois including the Northcenter area: WEATHER HAZARDS EXPECTED: SHOWERS WITH EMBEDDED THUNDERSTORMS SOME OF WHICH MAY PRODUCE: VERY HEAVY RAINFALL A BRIEF TORNADO AREAS AFFECTED AND TIMING:
SHOWERS WITH EMBEDDED THUNDERSTORMS WILL LIFT NORTHWARD ACROSS EAST CENTRAL ILLINOIS...PORTIONS OF NORTHERN ILLINOIS AND NORTHWESTERN INDIANA TODAY. THE HEAVIEST RAINFALL THREAT WILL PRIMARILY BE SOUTH OF INTERSTATE 80...WHERE RAINFALL TODAY AND TONIGHT COULD AMOUNT TO 2 TO 4 INCHES IN SOME AREAS. DISCUSSION: THE REMNANTS OF ISAAC WILL MOVE EAST ACROSS CENTRAL ILLINOIS LATE TONIGHT THROUGH SUNDAY. SHOWERS...WITH EMBEDDED THUNDERSTORMS WILL GRADUALLY DEVELOP NORTHWARD ACROSS CENTRAL AND PORTIONS OF NORTHERN ILLINOIS AND NORTHWEST INDIANA THIS MORNING AND WILL CONTINUE THIS AFTERNOON AND TONIGHT. DUE TO THE HIGH AMOUNT OF MOISTURE ASSOCIATED WITH ISAAC...PERIODS OF HEAVY RAINFALL ARE EXPECTED ACROSS AREAS MAINLY SOUTH OF INTERSTATE 80. THIS COULD LEAD TO SOME MINOR FLOODING. HOWEVER...WATER LEVELS ON AREA RIVERS AND SMALL STREAMS ACROSS THE AREA REMAIN LOW DUE TO THE ONGOING DROUGHT CONDITIONS ACROSS THE AREA. THEREFORE...THE POTENTIAL FOR ANY SIGNIFICANT FLOODING ISSUES LOOKS TO REMAIN LOW. THERE IS ALSO A VERY SMALL CHANCE THAT A BRIEF TORNADO OR TWO COULD DEVELOP TODAY...MAINLY SOUTH OF THE ILLINOIS AND KANKAKEE RIVER VALLEYS WHERE A SURFACE FRONTAL BOUNDARY WILL BECOME DRAPED WHICH WILL ALLOW FOR SOME MODEST LOW LEVEL WIND SHEAR TO DEVELOP. THE POTENTIAL FOR RIP CURRENTS WILL BE ENHANCED TODAY ALONG THE LAKE MICHIGAN SHORE NORTH OF CHICAGO. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. SHOWERS WITH EMBEDDED THUNDERSTORMS...CAPABLE OF PRODUCING VERY HEAVY RAINFALL WILL CONTINUE ON SUNDAY AND INTO MONDAY...GENERALLY SOUTH OF THE INTERSTATE 80 CORRIDOR.