Alert archive / Illinois / Flash Flood Warnings in 2002

Flash Flood Warning 26, NWS Quad Cities, IA

June 13, 20024 counties in Illinois

NWS Quad Cities, IA issued this flash flood warning at Jun 13, 2002, 4:06 AM CDT for 4 counties in Illinois. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 13, 2002, 4:06 AM CDT (09:06 UTC)
Expired
Jun 13, 2002, 9:00 AM CDT
In force
5 hr
Issued by
NWS Quad Cities, IA
Area
Counties, with a storm outline in the text

Counties Hancock County, IL, Henderson County, IL, McDonough County, IL, Warren County, IL

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 9.1 hours before the alert went out and 98 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Davenport, at 00:00Z on 2002-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1544 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 00:00Z on 2002-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1544 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
921 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS53 KDVN 130906
FFWMLI
ILC067-071-109-187-131400-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
405 AM CDT THU JUN 13 2002

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS EXTENDED THE 
FLASH FLOOD WARNINGS FOR...

* HENDERSON COUNTY IN WEST CENTRAL ILLINOIS
  WARREN COUNTY IN WEST CENTRAL ILLINOIS
  HANCOCK COUNTY IN WEST CENTRAL ILLINOIS
  MCDONOUGH COUNTY IN WEST CENTRAL ILLINOIS

* UNTIL 900 AM CDT

* AT 355 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND 
SHORT-TERM FORECASTS INDICATED THAT HEAVY RAIN WILL END THIS MORNING
ACROSS WEST CENTRAL ILLINOIS. HOWEVER...FLASH FLOODING WILL CONTINUE 
THROUGH THE MORNING COMMUTE...AS WATER PONDS ON ROADWAYS...CONTINUES TO 
FLOOD LOW-LYING AREAS...AND AFFECTS URBAN AREAS.

* UP TO 3 TO 4 INCHES OF RAIN HAS FALLEN OVERNIGHT...WITH THE 
HEAVIEST RAINS ACROSS HENDERSON...MONMOUTH...EXTREME NORTHERN 
HANCOCK...AND NORTHERN MCDONOUGH COUNTIES. SOME TOWNS THAT HAVE BEEN 
MOST AFFECTED INCLUDE...OQUAWKA AND BIGGSVILLE IN HENDERSON 
COUNTY...AND KIRKWOOD...ROSEVILLE...AND GREENBUSH IN WARREN COUNTY. 
AN ADDITIONAL INCH IS POSSIBLE BEFORE THE RAIN ENDS.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER
LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

LAT...LON 4106 9048 4029 9048 4023 9148 4092 9095
          4106 9094

REA
2 follow-up statements
000 
WGUS53 KDVN 131233
FFSMLI
ILC067-071-109-187-131400-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
730 AM CDT THU JUN 13 2002

 A FLASH FLOOD WARNING CONTINUES FOR...

* HENDERSON COUNTY IN WEST CENTRAL ILLINOIS
  WARREN COUNTY IN WEST CENTRAL ILLINOIS
  HANCOCK COUNTY IN WEST CENTRAL ILLINOIS
  MCDONOUGH COUNTY IN WEST CENTRAL ILLINOIS

* UNTIL 900 AM CDT

AT 720 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT THE HEAVY RAIN PRODUCING THUNDERSTORMS HAD EXITED THE WARNED 
AREA.  HOWEVER...SPOTTERS AND LOCAL LAW ENFORCEMENT REPORTED THAT 
FLOODING PROBLEMS CONTINUE AND WILL HAMPER THE MORNING COMMUTE. 
ROUTE 116 SOUTH OF MEDIA IN HENDERSON COUNTY WAS REPORTED FLOODED 
AND CLOSED. ALSO...MANY ROADS IN THE LA HARPE AREA OF HANCOCK COUNTY 
WERE REPORTED BY A COOPERATIVE OBSERVER TO BE WATER COVERED AND 
CLOSED.  NUMEROUS COUNTRY AND BACKROADS WERE REPORTED WASHED OUT OR 
STILL WATER COVERED IN ALL THE WARNED COUNTIES.

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT A SWATH OF 2 
TO 4.5 INCHES OF RAIN HAD FALLEN FROM OQUAWKA...TO BUSHNELL  
WEDNESDAY EVENING AND THURSDAY MORNING. 

THURSDAY MORNING MOTORISTS ARE URGED NOT TO DRIVE INTO AREAS WHERE 
WATER STILL COVERS THE ROADWAY OR PAST POLICE BARRICADES.

$$

JDH

NNNN
000 
WGUS53 KDVN 131410
FFSMLI
ILC067-071-109-187-131420-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
910 AM CDT THU JUN 13 2002

...FLASH FLOOD WARNINGS FOR...HENDERSON...WARREN...HANCOCK...
AND MCDONOUGH COUNTIES IN WEST CENTRAL ILLINOIS ALLOWED TO EXPIRE AT 
900 AM CDT...

AT 905 AM...VARIOUS LAW ENFORCEMENT AND COOPERATIVE OBSERVER REPORTS 
INDICATED THAT THE FLOODING TROUBLE WAS RECEDING AND THAT MORE AND 
MORE ROADS WERE REOPENING...THUS THE FLASH FLOOD WARNING HAS BEEN 
ALLOWED TO EXPIRE AT 9 AM. HOWEVER...SOME NUISANCE FLOODING AND 
PONDING OF WATER OVER AND NEAR ROADWAYS WILL STILL AFFECT THE 
PREVIOUSLY WARNED AREA THROUGH MIDDAY.

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT WIDELY 
SCATTERED SHOWERS...AND POSSIBLY EVEN A FEW ISOLATED THUNDERSTORMS 
WILL MOVE SOUTHEAST AND OVER THE PREVIOUSLY WARNED AREA THROUGH 
MIDDAY...BUT ARE NOT EXPECTED TO AGGRAVATE OR CREATE ANY NEW 
FLOODING PROBLEMS.

THURSDAY MORNING MOTORISTS ARE STILL URGED TO USE CAUTION AND TO NOT 
DRIVE INTO AREAS WHERE WATER STILL COVERS THE ROADWAY OR PAST POLICE 
BARRICADES.

$$

JDH

NNNN

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 12, 7:42 PM CDTSevere Thunderstorm WarningDVNMercer33 min
Jun 12, 8:53 PM CDTSevere Thunderstorm WarningDVNMercer52 min
Jun 12, 9:12 PM CDTFlash Flood WarningDVNHancock, Henderson, Warren8 hr
Jun 12, 11:12 PM CDTSevere Thunderstorm WarningDVNWarren48 min
Jun 13, 12:20 AM CDTFlash Flood WarningDVNMcDonough7 hr

Nearby

Flash Flood Warnings in Illinois, 2002Every flash flood warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.