Hazardous Weather Outlook

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
820 PM CDT SUN MAY 19 2013

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
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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-
820 PM CDT SUN MAY 19 2013 /920 PM EDT SUN MAY 19 2013/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

  WEATHER HAZARDS EXPECTED:

  SCATTERED THUNDERSTORMS WHICH MAY PRODUCE...
   WIND GUSTS TO 65 MPH.
   ISOLATED TORNADOES.
   HAIL TO ONE INCH IN DIAMETER.
   LOCALLY HEAVY RAIN.
   CLOUD TO GROUND LIGHTNING.

  AREAS AFFECTED AND TIMING:

  AREAS OF THUNDERSTORMS WILL BE SEEN ACROSS NORTH CENTRAL
  ILLINOIS DURING THE MID TO LATE EVENING AND EARLY OVERNIGHT
  WHICH WILL HAVE SEVERE WEATHER POTENTIAL. WIND WILL BE THE
  PRIMARY THREAT...BUT ISOLATED TORNADOES ARE POSSIBLE IN SOME
  STORMS...ALONG WITH LARGE HAIL. THERE THEN WILL BE A CHANCE FOR
  THUNDERSTORMS IN THE OVERNIGHT HOURS...FIRST ACROSS NORTH
  CENTRAL ILLINOIS AND THEN SPREADING EAST ACROSS THE REST OF THE
  AREA TOWARD DAYBREAK.

  DISCUSSION:

  THUNDERSTORMS OVER NORTHWEST ILLINOIS WILL MOVE NORTHEAST INTO
  NORTH CENTRAL ILLINOIS THROUGH THE EVENING. THESE STORMS HAVE
  HAD A HISTORY OF SOME SEVERE WEATHER AND WILL MAINTAIN THAT
  THREAT THROUGH EARLY OVERNIGHT. MORE STORMS OVER THE PLAINS WILL
  MOVE NORTHEAST OVERNIGHT. WHILE THESE THUNDERSTORMS ARE EXPECTED
  TO BE IN A DISSIPATING STAGE...THERE WILL REMAIN A CHANCE OF
  SEVERE WEATHER...GENERALLY ALONG AND WEST OF A WOODSTOCK TO
  PONTIAC LINE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

SCATTERED THUNDERSTORMS WILL BE POSSIBLE MONDAY THROUGH WEDNESDAY
NIGHT WITH THE POTENTIAL FOR SEVERE WEATHER DURING THIS SAME TIME
PERIOD ACROSS THE ENTIRE AREA. THE MAIN SEVERE WEATHER THREATS
WILL BE DAMAGING WIND GUSTS AND LARGE HAIL.

HEAVY RAIN WILL ALSO BE POSSIBLE FROM ANY OF THE THUNDERSTORMS
THAT FORM ALONG WITH PERIODS OF HEAVY RAIN ESPECIALLY MONDAY
NIGHT INTO TUESDAY MORNING AND AGAIN TUESDAY NIGHT INTO WEDNESDAY
MORNING. STORM TOTAL RAINFALL AMOUNTS COULD REACH 3 INCHES IN
SOME AREAS. THESE RAINFALL AMOUNTS COULD CAUSE LOCALIZED
FLOODING...ESPECIALLY IN LOW LYING AND POOR DRAINAGE AREAS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS REQUESTED WITHIN THE TORNADO WATCH AREA
THROUGH AT LEAST LATE THIS EVENING.

&&

$$