[HWOLOT] HWOLOT

[HWOLOT at goshenarc.org]

FLUS43 KLOT 131128
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
630 AM CDT MON JUN 13 2005

ILZ003>006-008-010>014-019>022-023-032-033-039-INZ001-002-010-011-
019-141100-
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-
630 AM CDT MON JUN 13 2005

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

.DAY ONE...TODAY AND TONIGHT

A MODERATE RISK OF SEVERE THUNDERSTORMS EXISTS THIS AFTERNOON AND 
TONIGHT ACROSS MUCH OF ILLINOIS AS WELL AS ADJACENT PORTIONS OF 
WISCONSIN AND IOWA.  THE MODERATE RISK AREA INCLUDES VIRTUALLY ALL 
OF NORTHERN ILLINOIS.  

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS NORTHWEST 
INDIANA. 

AN INTENSIFYING LOW PRESSURE CENTER OVER THE CENTRAL PLAINS IS 
FORECAST TO MOVE TO SOUTHERN MINNESOTA TODAY...CAUSING WINDS ALOFT 
TO BECOME INCREASINGLY FAVORABLE FOR SUPPORTING AN OUTBREAK OF 
SEVERE THUNDERSTORMS AND TORNADOES ACROSS THE UPPER MISSISSIPPI 
VALLEY AND MIDWEST.  SATELLITE IMAGERY INDICATES THAT AN AREA OF 
THUNDERSTORMS OVER MISSOURI IS DISSIPATING AND CLOUD COVER FROM THIS 
AREA WILL NOT INHIBIT DAYTIME HEATING FURTHER NORTH AND EAST.  THIS 
WILL ALLOW THE ATMOSPHERE TO BECOME VERY UNSTABLE THIS AFTERNOON IN 
ADDITION TO THE INCREASING WIND PROFILES. 

SEVERE THUNDERSTORMS ARE EXPECTED TO INITIATE BY EARLY AFTERNOON 
OVER IOWA AND SOUTHEAST MINNESOTA...WITH THIS LINE THEN DEVELOPING 
SOUTHWARD ALONG THE MISSISSIPPI VALLEY.  STORMS WILL THEN TRACK 
NORTHEAST ACROSS THE RISK AREA DURING THE LATE AFTERNOON.  
DEVELOPMENT WILL FAVOR TORNADIC SUPERCELLS...WITH A POTENTIAL FOR 
ISOLATED STRONG TORNADOES.    

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THERE IS A CONTINUED CHANCE OF THUNDERSTORMS TUESDAY MORNING. 
A FRONTAL PASSAGE ON TUESDAY WILL BRING AN END TO THE THUNDERSTORM 
THREAT FOR THE REMAINDER OF THE WEEK. 

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ACTIVATION IS LIKELY THIS AFTERNOON AND TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE
NWS CHICAGO WEBPAGE: WEATHER.GOV/CHICAGO (LOWER CASE)

$$

LMZ740>745-766-131130-
WINTHROP HARBOR IL TO MICHIGAN CITY IN-
LAKE MICHIGAN-
630 AM CDT MON JUN 13 2005

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

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS ARE EXPECTED TO DEVELOP OR MOVE ONTO SOUTHERN LAKE 
MICHIGAN THIS AFTERNOON AND TONIGHT.  SOME OF THESE STORMS MAY 
BE SEVERE LATE THIS AFTERNOON AND TONIGHT WITH WIND GUSTS IN EXCESS 
OF 50 KNOTS.  MARINERS VENTURING OUT ON THE LAKE TODAY AND TONIGHT 
SHOULD MONITOR WEATHER CONDITIONS AND BE PREPARED TO REACH SAFE 
HARBOR IF THREATENING WEATHER APPROACHES. 

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THERE IS A CONTINUED CHANCE OF THUNDERSTORMS TUESDAY MORNING. 
A FRONTAL PASSAGE ON TUESDAY WILL BRING AN END TO THE THUNDERSTORM 
THREAT FOR THE REMAINDER OF THE WEEK. 

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE
NWS CHICAGO WEBPAGE: WEATHER.GOV/CHICAGO (LOWER CASE)

$$

MERZLOCK