

000 

WGUS73 KLOT 240521

FFSLOT



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL

1211 AM CDT FRI AUG 24 2007



ILC031-037-043-063-089-091-093-099-103-105-141-197-INC089-127-240900-

/X.CON.KLOT.FF.W.0006.000000T0000Z-070824T0900Z/

/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

OGLE IL-COOK IL-KANE IL-DEKALB IL-DUPAGE IL-LEE IL-LIVINGSTON IL-

GRUNDY IL-KANKAKEE IL-KENDALL IL-WILL IL-LA SALLE IL-LAKE IN-

PORTER IN-

1221 AM CDT FRI AUG 24 2007



...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 AM CDT FOR

PORTER...LAKE...LA SALLE...WILL...KENDALL...KANKAKEE...GRUNDY...

NORTHERN LIVINGSTON...LEE...DUPAGE...DEKALB...KANE...COOK AND OGLE

COUNTIES...



AT 1221 AM CDT...RADAR CONTINUED TO INDICATE THUNDERSTORMS CAPABLE 

OF PRODUCING HEAVY RAINFALL ACROSS MUCH OF THE WARNING AREA. ONE 

AREA OF THUNDERSTORMS WAS FROM THE OTTAWA AND STREATOR AREAS OF 

NORTH CENTRAL ILLINOIS...EAST THROUGH THE WILMINGTON...MONEE AND 

CROWN POINT INDIANA AREAS. ANOTHER AREA OF THUNDERSTORMS WAS MOVING 

EAST ACROSS THE ASHTON...ROCHELLE AND DEKALB AREAS OF NORTHERN 

ILLINOIS. RADAR RAINFALL ESTIMATES INDICATE THAT THESE HEAVIER 

STORMS CONTINUE TO PRODUCE RAINFALL AMOUNTS BETWEEN AN INCH AND TWO 

INCHES PER HOUR. COMBINED WITH EARLIER RAINFALL SINCE THURSDAY 

AFTERNOON...THREE TO LOCALLY IN EXCESS OF SIX INCHES OF RAIN HAS 

FALLEN ACROSS THE WARNING AREA. 



RUN OFF FROM THIS HEAVY RAIN WILL CONTINUE TO PRODUCE FLASH 

FLOODING. ADDITIONAL THUNDERSTORMS ACROSS SOUTHEAST IOWA WILL LIKELY 

MOVE INTO NORTHERN ILLINOIS AFTER 3 AM...MAINTAINING THE THREAT OF 

ADDITIONAL FLASH FLOODING AS THESE STORMS MOVE ACROSS NORTHERN 

ILLINOIS AND NORTHWEST INDIANA EARLY THIS MORNING. SOME AREAS MAY 

SEE UP TO AN ADDITIONAL TWO TO THREE INCHES OF RAINFALL THROUGH 5 AM 

CDT. ANY ADDITIONAL HEAVY RAINFALL WILL IMMEDIATELY RUN OFF AND WILL 

LIKELY LEAD TO POTENTIALLY SIGNIFICANT FLASH FLOODING.



THIS IS A POTENTIALLY DANGEROUS SITUATION. FLASH FLOODING IS ONE OF 

NATURES NUMBER ONE KILLERS...ANYONE TRAVELING ACROSS NORTHERN 

ILLINOIS TONIGHT SHOULD USE EXTREME CAUTION. IF YOU ENCOUNTER A 

FLOODED ROADWAY...TURN AROUND...DONT DROWN





LAT...LON 4130 8714 4120 8734 4118 8753 4103 8753

      4102 8758 4093 8904 4110 8904 4113 8917

      4158 8915 4161 8959 4219 8968 4219 8918

      4215 8917 4215 8776 4178 8757 4163 8740

      4159 8730 4170 8694 4125 8694



$$



RATZER



000 

WGUS73 KLOT 240532 CCA

FFSLOT



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL

1211 AM CDT FRI AUG 24 2007



ILC031-037-043-063-089-091-093-099-103-105-141-197-INC089-127-240900-

/X.CON.KLOT.FF.W.0006.000000T0000Z-070824T0900Z/

/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

OGLE IL-COOK IL-KANE IL-DEKALB IL-DUPAGE IL-LEE IL-LIVINGSTON IL-

GRUNDY IL-KANKAKEE IL-KENDALL IL-WILL IL-LA SALLE IL-LAKE IN-

PORTER IN-

1211 AM CDT FRI AUG 24 2007



...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 AM CDT FOR

PORTER...LAKE...LA SALLE...WILL...KENDALL...KANKAKEE...GRUNDY...

NORTHERN LIVINGSTON...LEE...DUPAGE...DEKALB...KANE...COOK AND OGLE

COUNTIES...



AT 1211 AM CDT...RADAR CONTINUED TO INDICATE THUNDERSTORMS CAPABLE 

OF PRODUCING HEAVY RAINFALL ACROSS MUCH OF THE WARNING AREA. ONE 

AREA OF THUNDERSTORMS WAS FROM THE OTTAWA AND STREATOR AREAS OF 

NORTH CENTRAL ILLINOIS...EAST THROUGH THE WILMINGTON...MONEE AND 

CROWN POINT INDIANA AREAS. ANOTHER AREA OF THUNDERSTORMS WAS MOVING 

EAST ACROSS THE ASHTON...ROCHELLE AND DEKALB AREAS OF NORTHERN 

ILLINOIS. RADAR RAINFALL ESTIMATES INDICATE THAT THESE HEAVIER 

STORMS CONTINUE TO PRODUCE RAINFALL AMOUNTS BETWEEN AN INCH AND TWO 

INCHES PER HOUR. COMBINED WITH EARLIER RAINFALL SINCE THURSDAY 

AFTERNOON...THREE TO LOCALLY IN EXCESS OF SIX INCHES OF RAIN HAS 

FALLEN ACROSS THE WARNING AREA. 



RUN OFF FROM THIS HEAVY RAIN WILL CONTINUE TO PRODUCE FLASH 

FLOODING. ADDITIONAL THUNDERSTORMS ACROSS SOUTHEAST IOWA WILL LIKELY 

MOVE INTO NORTHERN ILLINOIS AFTER 3 AM...MAINTAINING THE THREAT OF 

ADDITIONAL FLASH FLOODING AS THESE STORMS MOVE ACROSS NORTHERN 

ILLINOIS AND NORTHWEST INDIANA EARLY THIS MORNING. SOME AREAS MAY 

SEE UP TO AN ADDITIONAL TWO TO THREE INCHES OF RAINFALL THROUGH 5 AM 

CDT. ANY ADDITIONAL HEAVY RAINFALL WILL IMMEDIATELY RUN OFF AND WILL 

LIKELY LEAD TO POTENTIALLY SIGNIFICANT FLASH FLOODING.



THIS IS A POTENTIALLY DANGEROUS SITUATION. FLASH FLOODING IS ONE OF 

NATURES NUMBER ONE KILLERS...ANYONE TRAVELING ACROSS NORTHERN 

ILLINOIS TONIGHT SHOULD USE EXTREME CAUTION. IF YOU ENCOUNTER A 

FLOODED ROADWAY...TURN AROUND...DONT DROWN





LAT...LON 4130 8714 4120 8734 4118 8753 4103 8753

      4102 8758 4093 8904 4110 8904 4113 8917

      4158 8915 4161 8959 4219 8968 4219 8918

      4215 8917 4215 8776 4178 8757 4163 8740

      4159 8730 4170 8694 4125 8694



$$



RATZER



000 

WGUS73 KLOT 240532 CCA

FFSLOT



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL

1211 AM CDT FRI AUG 24 2007



ILC031-037-043-063-089-091-093-099-103-105-141-197-INC089-127-240900-

/X.CON.KLOT.FF.W.0006.000000T0000Z-070824T0900Z/

/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

OGLE IL-COOK IL-KANE IL-DEKALB IL-DUPAGE IL-LEE IL-LIVINGSTON IL-

GRUNDY IL-KANKAKEE IL-KENDALL IL-WILL IL-LA SALLE IL-LAKE IN-

PORTER IN-

1211 AM CDT FRI AUG 24 2007



...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 AM CDT FOR

PORTER...LAKE...LA SALLE...WILL...KENDALL...KANKAKEE...GRUNDY...

NORTHERN LIVINGSTON...LEE...DUPAGE...DEKALB...KANE...COOK AND OGLE

COUNTIES...



AT 1211 AM CDT...RADAR CONTINUED TO INDICATE THUNDERSTORMS CAPABLE 

OF PRODUCING HEAVY RAINFALL ACROSS MUCH OF THE WARNING AREA. ONE 

AREA OF THUNDERSTORMS WAS FROM THE OTTAWA AND STREATOR AREAS OF 

NORTH CENTRAL ILLINOIS...EAST THROUGH THE WILMINGTON...MONEE AND 

CROWN POINT INDIANA AREAS. ANOTHER AREA OF THUNDERSTORMS WAS MOVING 

EAST ACROSS THE ASHTON...ROCHELLE AND DEKALB AREAS OF NORTHERN 

ILLINOIS. RADAR RAINFALL ESTIMATES INDICATE THAT THESE HEAVIER 

STORMS CONTINUE TO PRODUCE RAINFALL AMOUNTS BETWEEN AN INCH AND TWO 

INCHES PER HOUR. COMBINED WITH EARLIER RAINFALL SINCE THURSDAY 

AFTERNOON...THREE TO LOCALLY IN EXCESS OF SIX INCHES OF RAIN HAS 

FALLEN ACROSS THE WARNING AREA. 



RUN OFF FROM THIS HEAVY RAIN WILL CONTINUE TO PRODUCE FLASH 

FLOODING. ADDITIONAL THUNDERSTORMS ACROSS SOUTHEAST IOWA WILL LIKELY 

MOVE INTO NORTHERN ILLINOIS AFTER 3 AM...MAINTAINING THE THREAT OF 

ADDITIONAL FLASH FLOODING AS THESE STORMS MOVE ACROSS NORTHERN 

ILLINOIS AND NORTHWEST INDIANA EARLY THIS MORNING. SOME AREAS MAY 

SEE UP TO AN ADDITIONAL TWO TO THREE INCHES OF RAINFALL THROUGH 5 AM 

CDT. ANY ADDITIONAL HEAVY RAINFALL WILL IMMEDIATELY RUN OFF AND WILL 

LIKELY LEAD TO POTENTIALLY SIGNIFICANT FLASH FLOODING.



THIS IS A POTENTIALLY DANGEROUS SITUATION. FLASH FLOODING IS ONE OF 

NATURES NUMBER ONE KILLERS...ANYONE TRAVELING ACROSS NORTHERN 

ILLINOIS TONIGHT SHOULD USE EXTREME CAUTION. IF YOU ENCOUNTER A 

FLOODED ROADWAY...TURN AROUND...DONT DROWN





LAT...LON 4130 8714 4120 8734 4118 8753 4103 8753

      4102 8758 4093 8904 4110 8904 4113 8917

      4158 8915 4161 8959 4219 8968 4219 8918

      4215 8917 4215 8776 4178 8757 4163 8740

      4159 8730 4170 8694 4125 8694



$$



RATZER

