Flash Flood Warning 40, NWS Chicago, IL

000 
WGUS73 KLOT 281011
FFSLOT
ILC031-043-063-093-197-281045-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
459 AM CDT SAT AUG 28 2004

...A FLASH FLOOD WARNING CONTINUES FOR...WILL...SOUTHERN 
COOK...KENDALL...AND GRUNDY COUNTIES UNTIL 545 AM CDT...

ALTHOUGH THE HEAVY RAINS HAVE ENDED ACROSS THE AREA...NATIONAL 
WEATHER SERVICE DOPPLER RADAR INDICATED THE RAINFALL AMOUNTS OF 2 TO 
4 INCHES HAVE FALLEN ACROSS THE WARNED AREA. THIS EXCESSIVE RAINFALL 
WILL CONTINUE TO PRODUCE SOME FLOODING PROBLEMS EARLY THIS MORNING.

REPORTS OF STANDING WATER OF 6 INCH DEPTH OR GREATER HAVE BEEN 
RECEIVED ACROSS PORTIONS OF THE ROMEOVILLE AND MORRIS AREAS WITH THE 
EARLIER THUNDERSTORMS.

MOST DEATHS IN FLOODING OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR
VEHICLE INTO AREAS IN WHICH WATER COVERS THE ROADWAY. IT ONLY TAKES
TWO FEET OF WATER TO WASH MOST VEHICLES AWAY INCLUDING SUVS AND
PICKUPS. VEHICLES CAUGHT IN RISING WATERS SHOULD BE ABANDONED
QUICKLY.

REPORT FLOODING TO YOUR LOCAL ESDA...OR THE NEAREST LAW ENFORCEMENT
AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE. STAY TUNED FOR
LATER STATEMENTS.

LAT...LON 4174 8761 4132 8758 4127 8822 4114 8829
      4117 8861 4126 8858 4170 8859
$$

MARSILI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHICAGO IL
715 PM CDT FRI AUG 27 2004

.DISCUSSION REGARDING AFTERNOON GRIDS/ZONES...

HAVE DECIDED TO GO AHD WITH FLOOD WATCH FOR SRN PORTIONS OF FA FOR
LATER TNGT AND SAT.

CURRENT VIS SATLT LOOPS SHOW CONVECTION STARTING TO RE-FIRE OVR S
CNTRL IA IN ZONE OF STG THETA E ADVECTION.  UPR AIR ANALYSES AND
ETA/NGM FCSTS ALSO SHOW FAIRLY DECENT DIFFLUENT AXIS ALF FROM NRN
KS-SRN IA/NRN MO INTO NRN IL.  AMS IN THIS AREA IS SLOLY RECOVERING
WITH MU CAPES AOA 2000 INTO SRN IA.  BEST CHC FOR HEAVIER TSTMS
LATER TNGT EXPECTED TO EVOLVE FROM DVLPMT OF CLUSTER JUST GETTING
GOING OVR SRN IA.  THIS CLUSTER SHOULD DVLP EWD AND MAY CATCH SRN
PORTIONS OF FA...MNLY AFT MIDNIGHT.  SOME SHOWERS AND THUNDER ASSD
WITH THIS COMPLEX MAY SPREAD NEWD ALG/AHD OF SYNOPTIC BOUNDARY FROM
SRN IA-SERN WI...BUT STGST UPDRAFTS SHOULD BE CONFINED TO AREAS WELL
S OF I-80...SO WILL NOT ISSUE FLOOD WATCH FOR RFD/CHI METRO AREAS.

STABLE FRONTAL WAVE FCST BY GUID TO TRACK NEWD ALG CDFNT ON
SAT...WITH WEAK LOW PASSING JUST S OF FA.  BEST CHC FOR HIGHER
PRECIP AMTS AGN EXPECTED OVR SRN PORTION OF FA...IN MORE IMMEDIATE
PROXIMITY TO SFC BOUNDARY.  LLVL FLOW VEERS A BIT OVRNGT AND BECOMES
MORE WLY BY SAT MRNG SO LTL IN THE WAY OF ELEVATED CONVECTION
EXPECTED TO N OF FNT.  WILL GO WITH MORE STRATIFIED -R EVENT
RFD-CHI-GYY AS AMS BECOMES PROGRESSIVELY MORE STABLE IN COOL
NELY-NLY
FLOW.  MAY BE A FEW RUMBLES IF ONGOING CONVECTION TO S DVLPS ANVIL
CANOPY NWD ACROSS FA.

SYS TO CLR OFF TO E SAT NGT INTO SUN MRNG...THEN DRY RMNDR FCST
PERIOD.

MOS TEMPS LOOK PRETTY REASONABLE...WITH CLOUDS AND RAIN KEEPING TO
COOL TEMPS SAT...SOME MODERATION SUN/MON...THEN A REINFORCING SHOT
OF COOLER AIR ABOUT TUES...BEFORE MORE SUSTAINED WARMING BUILDS IN
FOR THE LATTER HALF OF NXT WEEK.

MERZLOCK

&&

.AVIATION...
RE 00Z TAFS: CDFNT EXTENDS FROM ENW TO RFD TO DVN AT 23Z. -SHRA ON
BNRY IN FAR NERN IL FADING WITH LOWERING SUN...WHILE SCT TSRA FM
CNTRL ENEWRD INTO IND IN AXIS A GREATEST INSTABILITY SHUD ALSO START
TO SHOW DECREASING TREND. MORE NUMEROUS TSRA CONT TO DVLP ALONG
PORTIONG OF CDFNT EXTENDING ACROSS SERN IA SWRD ACROSS NRN MO INTO
KS AS SHORT WAVE TROF APPORACHES FM PLAINS ICREASING DEEP LARGE
SCALE UVV. WAVE ON BNDRY IN ERN KS BACKING/INCRG LO LVL FLO INTO/OVR
BNDRY WITH TSRA CONTG TO DVLP INTO CNTRL AND E CNTRL IA. EXPECT
CDFNT CONT TO SAG INTO NRN IL THIS EVE WITH OVERUNNING SHRA/TSRA TO
OVRSPRD TERMINALS OVRNGT AS SHRTWV TROF AND ASSOCIATED SFC WV CONT
SLOLY E TO MID MS VLY BY 12Z SAT. WITH MID LVL TROF ONLY PROGRESSING
INTO WRN IL BY 00Z SUN EXPECT CONT -RA/-SHRA THRU MUCH OF SAT WITH
CIGS LWRG AT LEAST TO LOWER END MVFR WITH COLUMN NEAR SATURATED.

TRS

&&

.LOT...WATCHES/WARNINGS/ADVISORIES...
.IL...NONE.
.IN...NONE.
.LK MI...NONE.

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO IL
430 PM CDT FRI AUG 27 2004

ILZ003>006-008-010>014-019>022-023-032-033-039-INZ001-002-010-011-019
-281100-
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-
430 PM CDT FRI AUG 27 2004

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

.DAY ONE... TONIGHT

THUNDERSTORMS ARE LIKELY TONIGHT. SOME OF THE THUNDERSTORMS ARE
LIKELY TO PRODUCE HEAVY RAINFALL THAT WILL CAUSE AREAS TO BE IN FLOOD.
THESE AREAS ARE ALONG STREAMS AND CREEKS...ROADS AND PLACES WITH
LOW ELEVATION. THE THREAT FOR FLOODS WILL BE SOUTH OF A LINE FROM
STREATOR...TO GARDNER TO PEOTONE IN ILLINOIS AND ALONG AND SOUTH OF
THE KANKAKEE RIVER IN INDIANA. A FLOOD WATCH WILL BE IN EFFECT AFTER
10 PM TONIGHT AND CONTINUE THROUGH THE MORNING. THE THUNDERSTORMS WILL
BE INTO THE PONTIAC...KEMPTON AND WATSEKA AREA BY 10 PM AND WILL
CONTINUE TO MOVE NORTH AND EAST TO THE WISCONSIN BORDER...CHICAGO
AND TOWARDS VALPARAISO. OTHER THUNDERSTORMS WILL MOVE INTO ROCKFORD...
OREGON AND AMBOY AROUND MIDNIGHT AND CONTINUE TO MOVE EAST.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS SOUTH OF A LINE FROM
AND INCLUDING OTTAWA TO JOLIET TO OAK LAWN AND THE SOUTH SIDE OF CHICAGO.
ALL OF THE NORTHWEST INDIANA IS INCLUDED IN THIS SLIGHT RISK AREA.
THE THREAT WILL BE THUNDERSTORMS PRODUCING HAIL AND DAMAGING WIND.

.DAYS TWO THROUGH SEVEN... SATURDAY THROUGH THURSDAY

THUNDERSTORMS WILL LIKELY CONTINUE ACROSS NORTHWEST INDIANA AND
NORTHEAST ILLINOIS SATURDAY. THERE IS A SLIGHT RISK OF SEVERE
THUNDERSTORMS  ALONG AND EAST OF A LINE FROM CHESTERTON
INDIANA TO GIBSON CITY ILLINOIS. A FLOOD WATCH WILL BE IN EFFECT
SOUTH OF A LINE FROM STREATOR...TO GARDNER TO PEOTONE IN ILLINOIS
AND ALONG AND SOUTH OF THE KANKAKEE RIVER IN INDIANA THROUGH
4 PM CDT. THE THREAT WILL BE HEAVY RAIN...DAMAGING WIND AND HAIL.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TONIGHT AND SATURDAY.

&&

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

LMZ740>746-766-281100-
WINTHROP HARBOR IL TO NEW BUFFALO MI-
LAKE MICHIGAN-
430 PM CDT FRI AUG 27 2004

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

.DAY ONE...TONIGHT

THERE WILL BE THUNDERSTORMS LIKELY TONIGHT. THE WIND IN SOME OF THE
THUNDERSTORMS MAY BE GREATER THAN 35 KNOTS. HAIL AND HEAVY RAIN ARE
POSSIBLE.

.DAYS TWO THROUGH SEVEN... SATURDAY THROUGH THURSDAY

THUNDERSTORMS ARE LIKELY SATURDAY. THE WIND WILL BE FROM THE NORTHWEST
AT SPEEDS UP TO 15 TO 25 KNOTS SATURDAY THROUGH SUNDAY MORNING. THIS
WIND WILL PRODUCE WAVES UP TO 4 TO 6 FEET SATURDAY...SATURDAY NIGHT AND
SUNDAY MORNING. THE WIND AND WAVE WILL DIMINISH SUNDAY AFTERNOON.

&&

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

WHW

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
203 AM CDT SAT AUG 28 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0151 AM     TSTM WND DMG     DWIGHT                  41.10N 88.42W
08/28/2004                   LIVINGSTON         IL   LAW ENFORCEMENT

            LOT OF TREES AND POWER LINES REPORTED DOWN IN CITY OF
            DWIGHT.

&&

FISHER