Alert archive / Illinois / Flash Flood Warnings in 1993

Flash Flood Warning 21, NWS Quad Cities, IA

July 5, 1993Jo Daviess County, Illinois; Grant County, Wisconsin

NWS Quad Cities, IA issued this flash flood warning at Jul 5, 1993, 1:43 PM CDT for Jo Daviess County, Illinois; Grant County, Wisconsin. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: Jul 5, 1993, 1:43 PM CDT (18:43 UTC)
Expired: Jul 5, 1993, 5:45 PM CDT
In force: 4 hr
Issued by: NWS Quad Cities, IA
Area: Whole counties

Counties Jo Daviess County, IL, Grant County, WI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 6.7 hours before the alert went out and 281 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 64 J/kg
Mixed-layer CIN: -122 J/kg
Mixed-layer LCL: 859 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 59 m²/s²
0-3 km storm-relative helicity: 128 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDBQ 051843
FFWDBQ
ILC085-WIC043-052245-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DUBUQUE IA
143 PM CDT MON JUL 5 1993
 
THE NATIONAL WEATHER SERVICE IN DUBUQUE HAS ISSUED A
FLASH FLOOD WARNING
EFFECTIVE UNTIL  600 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST ILLINOIS
 
   ...WESTERN JO-DAVIES COUNTY
 
 
IN SOUTHWEST WISCONSIN
 
   ...GRANT COUNTY
 
AT 135 PM SOME FLOODING WAS BEING REPORTED IN BOTH GRANT AND JO-DAVIES
COUNTIES. IN EAST DUBUQUE ON THE ILLINOIS SIDE OF THE MISSISSIPPI RIVER
WATER WAS REPORTED TO BE RISING RAPIDLY DUE TO BOTH THE MISSISSIPPI
RIVER AND SMALL STREAMS IN THE REGION. IN GRANT COUNTY MOST OF THE
PLATTEVILLE RIVER WAS NEAR BANKFULL AND IN THE SINSINAWA CREEK NEAR
HAZEL GREEN AND KIELER... 5 MILES TO THE EAST OF THE CITY OF DUBUQUE
...WATER WAS REPORTED TO IN AND ABOVE THE BANKS OF THE CREEK.
 
MORE SHOWERS AND THUNDERSTORMS WILL BE MOVING INTO THE REGION THIS
AFTERNOON. RAINFALL IS EXPECTED TO BE LOCALLY HEAVY AND THIS WILL
RESULT IN SOME FLOODING.
 
 
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIvDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
 
 
ROWLAND
NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 5, 5:35 PM CDT	Flash Flood Warning	DVN	Jo Daviess	6 hr
Jul 5, 5:35 PM CDT	Flash Flood Warning	DVN	Lafayette	6 hr

Nearby

Flash Flood Warnings in Illinois, 1993 Flash Flood Warnings in Wisconsin, 1993 Every flash flood warning in 1993

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.