[HWOLOT] HWOLOT

[HWOLOT at goshenarc.org]

FLUS43 KLOT 051703 CCA
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO IL
1145 AM CDT MON JUL 5 2004

ILZ003>006-008-010>014-019>022-023-032-033-039-INZ001-002-010-011-019
-061100-
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DU PAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
LAKE IN-PORTER-NEWTON-JASPER-BENTON-
1145 AM CDT MON JUL 5 2004

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PORTIONS OF 
NORTHERN ILLINOIS AND MOST OF NORTHWEST INDIANA FOR TONIGHT. THE 
SLIGHT RISK AREA IS GENERALLY ALONG AND SOUTH OF INTERSTATE 80. 

A DEEPENING LOW PRESSURE CENTER OVER WESTERN IOWA WILL MOVE 
NORTHEAST INTO CENTRAL WISCONSIN TONIGHT. THE CIRCULATION AROUND 
THIS SYSTEM WILL ENHANCE A PUSH OF WARM...MOIST AIR OVER A 
RETREATING FRONTAL BOUNDARY WHICH LIES ACROSS NORTHERN ILLINOIS AND 
INDIANA.  

SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER IOWA THIS 
AFTERNOON AND THEN PROPAGATE EASTWARD ACROSS NORTHERN 
ILLINOIS...REACHING NORTHWEST INDIANA BY MIDNIGHT. 

THE MAIN THREAT FROM THESE THUNDERSTORMS WILL BE LOCALLY HEAVY 
RAINFALL.  AS MID LEVEL WINDS INCREASE THIS AFTERNOON AND EVENING..A 
FEW SUPERCELL STRUCTURES MAY DEVELOP..ESPECIALLY THIS EVENING ALONG 
AND JUST NORTH OF THE RETREATING SURFACE FRONT. 

INITIAL THUNDERSTORM DEVELOPMENT IS EXPECTED THIS AFTERNOON OVER 
EASTERN IOWA...WITH ACTIVITY SPREADING EASTWARD INTO ILLINOIS THIS 
EVENING. 

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THERE IS AN ONGOING CHANCE OF SHOWERS AND THUNDERSTORMS TUESDAY.
SOME SEVERE STORMS MAY BE ONGOING OVER EASTERN PORTIONS OF THE 
OUTLOOK AREA...GENERALLY EAST OF A CHICAGO TO PONTIAC LINE. 

THUNDERSTORMS ARE ALSO POSSIBLE AGAIN ON SATURDAY. 
 
.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NECESSARY THIS EVENING...PROBABLY AFTER 
600 PM.  

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE
NWS CHICAGO WEBPAGE: WWW.CRH.NOAA.GOV/LOT (LOWER CASE)

$$

LMZ740>746-766-051100-
WINTHROP HARBOR IL TO NEW BUFFALO MI-
LAKE MICHIGAN-
1145 AM CDT MON JUL 5 2004

THIS PORTION OF THE HAZARDOUS WEATHER OUTLOOK IS FOR THE ILLINOIS 
AND INDIANA WATERS OF LAKE MICHIGAN.

.DAY ONE...THIS AFTERNOON AND TONIGHT 

THUNDERSTORMS ARE EXPECTED TO MOVE ACROSS SOUTHERN LAKE MICHIGAN 
TONIGHT. 

A DEEPENING LOW PRESSURE CENTER OVER WESTERN IOWA WILL MOVE 
NORTHEAST INTO CENTRAL WISCONSIN TONIGHT. THE CIRCULATION AROUND 
THIS SYSTEM WILL ENHANCE A PUSH OF WARM...MOIST AIR OVER A 
RETREATING FRONTAL BOUNDARY WHICH LIES ACROSS NORTHERN ILLINOIS AND 
INDIANA.  

SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER IOWA THIS 
AFTERNOON AND THEN PROPAGATE EASTWARD ACROSS NORTHERN 
ILLINOIS...REACHING LAKE MICHIGAN BY MIDNIGHT. 

THE MAIN THREAT FROM THESE THUNDERSTORMS WILL BE HEAVY DOWNPOURS AND 
FREQUENT LIGHTNING.  STRONGER STORMS MAY PRODUCE WIND GUSTS IN 
EXCESS OF 35 KNOTS. 

DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY 

THUNDERSTORMS MAY BE ONGOING TUESDAY MORNING.  

THUNDERSTORMS ARE POSSIBLE AGAIN ABOUT SATURDAY. 

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE
NWS CHICAGO WEBPAGE: WWW.CRH.NOAA.GOV/LOT (LOWER CASE)

$$

MERZLOCK