FLUS43 KLOT 111544
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1044 AM CDT SUN MAY 11 2014
WINNEBAGO-BOONE-MCHENRY-LAKE ILLINOIS-OGLE-LEE-DE KALB-KANE-
DUPAGE-COOK-LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-
IROQUOIS-FORD-LAKE INDIANA-PORTER-NEWTON-JASPER-BENTON-
1044 AM CDT SUN MAY 11 2014 /1144 AM EDT SUN MAY 11 2014/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...THIS AFTERNOON AND TONIGHT.
WEATHER HAZARDS EXPECTED:
SCATTERED THUNDERSTORMS...SOME COULD BE SEVERE WITH:
HAIL UP TO THE SIZE OF GOLF BALLS.
DAMAGING WINDS OVER 60 MPH.
TORRENTIAL DOWNPOURS.
FREQUENT LIGHTNING.
ALONG WITH SOME TORNADO POTENTIAL.
AREAS AFFECTED AND TIMING:
SCATTERED THUNDERSTORMS WILL LIKELY DEVELOP BETWEEN 2 PM AND 5
PM WITH THE HIGHEST CHANCES FOR INITIAL DEVELOPMENT BEING SOUTH
OF INTERSTATES 88 AND 290. STORMS WILL LIKELY MOVE NORTHEAST
OR EAST. THE SEVERE THUNDERSTORM THREAT APPEARS HIGHEST BETWEEN
3 PM AND 9 PM...WITH A CHANCE OF MAINLY NON-SEVERE THUNDERSTORMS
LINGERING THROUGH TONIGHT.
DISCUSSION:
A WARM FRONT WILL LIFT NORTH INTO NORTHERN ILLINOIS EARLY THIS
AFTERNOON WITH THE ATMOSPHERE BECOMING QUITE UNSTABLE IN ADVANCE
OF AND NEAR THIS WARM FRONT. SCATTERED THUNDERSTORMS ARE
EXPECTED TO DEVELOP BY MID AFTERNOON AND CONTINUE INTO THE MID
EVENING HOURS. WINDS ALOFT ARE FORECAST TO BECOME INCREASINGLY
FAVORABLE FOR SEVERE THUNDERSTORMS...SO THAT ANY STORMS THAT DO
DEVELOP COULD EASILY BECOME SEVERE LATE THIS AFTERNOON INTO VERY
EARLY THIS EVENING. THE PRIMARY HAZARD APPEARS TO BE LARGE
HAIL...POSSIBLY UP TO THE SIZE OF GOLF BALLS OR PERHAPS A BIT
LARGER IN SPOTS. THERE ARE INDICATIONS THAT THERE COULD BE A
WINDOW OF OPPORTUNITY FOR THUNDERSTORMS TO POTENTIALLY BECOME
TORNADIC...ESPECIALLY BETWEEN 4 PM AND 8 PM THIS EVENING.
WHILE SOME LINGERING CHANCE OF STORMS WILL CONTINUE
LATE THIS EVENING AND OVERNIGHT...THE GREATEST FOCUS FOR
THUNDERSTORM DEVELOPMENT WILL LIKELY SHIFT NORTH INTO WISCONSIN.
.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.
THERE IS A CHANCE OF THUNDERSTORMS MONDAY WITH THE THREAT
INCREASING MONDAY NIGHT. THERE DOES APPEAR TO BE SOME LIMITED
THREAT OF ISOLATED SEVERE THUNDERSTORMS MONDAY NIGHT...MAINLY
WEST TOWARD THE INTERSTATE 39 CORRIDOR. THERE IS A SLIGHT CHANCE
THAT THUNDERSTORMS COULD LINGER INTO TUESDAY MORNING...ESPECIALLY
OVER NORTHWEST INDIANA.
.SPOTTER INFORMATION STATEMENT...
SPOTTERS ACTIVATION MAY BE NEEDED FROM MID AFTERNOON THROUGH MID
EVENING.
&&
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