FLUS43 KLOT 110958
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
458 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-
458 AM CDT SUN MAY 11 2014 /558 AM EDT SUN MAY 11 2014/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...TODAY 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 1 PM AND 4
PM WITH THE HIGHEST CHANCES BEING SOUTH OF INTERSTATES 88 AND
290. THE SEVERE THUNDERSTORM THREAT APPEARS HIGHEST BETWEEN 3 PM
AND 8 PM...WITH A CHANCE OF MAINLY NON-SEVERE THUNDERSTORMS
LINGERING THROUGH TONIGHT.
DISCUSSION:
A WARM FRONT WILL LIFT NORTH INTO NORTHERN ILLINOIS TODAY WITH
THE ATMOSPHERE FORECAST TO BECOME QUITE UNSTABLE IN ADVANCE OF
THE WARM FRONT. SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP
BY EARLY TO MID AFTERNOON AND CONTINUE INTO THE EARLY EVENING
HOURS. WINDS ALOFT ARE FORECAST TO BECOME INCREASINGLY FAVORABLE
FOR SEVERE THUNDERSTORMS THIS AFTERNOON...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 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
TONIGHT...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 THIS AFTERNOON AND EARLY THIS
EVENING.
&&
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