Alert archive / Missouri / Flash Flood Warnings in 2002

Flash Flood Warning 21, NWS Quad Cities, IA

June 12, 2002Clark County, Scotland County, Missouri; Lee County, Van Buren County, Iowa

NWS Quad Cities, IA issued this flash flood warning at Jun 12, 2002, 8:17 PM CDT for Clark County, Scotland County, Missouri; Lee County, Van Buren County, Iowa. It was in force for 8 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 12, 2002, 8:17 PM CDT (01:17 UTC)
Expired
Jun 13, 2002, 4:00 AM CDT
In force
8 hr
Issued by
NWS Quad Cities, IA
Area
Counties, with a storm outline in the text

Counties Lee County, IA, Van Buren County, IA, Clark County, MO, Scotland County, MO

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 1.3 hours before the alert went out and 154 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 130117
FFWMLI
IAC111-177-MOC045-199-130900-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
812 PM CDT WED JUN 12 2002

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CLARK COUNTY IN NORTHEAST MISSOURI
  SCOTLAND COUNTY IN NORTHEAST MISSOURI
  VAN BUREN COUNTY IN SOUTHEAST IOWA
  LEE COUNTY IN SOUTHEAST IOWA

* UNTIL 4 AM CDT

* AT 812 PM CDT...A TRAINED SPOTTER IN FARMINGTON REPORTED 2 INCHES 
OF RAIN IN A HALF HOUR.  WEATHER SERVICE DOPPLER RADAR INDICATED 2 
TO 3 INCHES OF RAIN OVER THE PAST FEW HOURS ACROSS SOUTHERN VAN 
BUREN...SOUTHERN LEE...NORTHERN SCOTLAND...AND NORTHERN CLARK 
COUNTIES.  RAINS WILL END FROM THE WEST...BUT WILL BEGIN AGAIN LATE 
THIS EVENING...WITH THE POTENTIAL FOR MORE HEAVY RAINFALL IN 
THUNDERSTORMS OVERNIGHT. 

* THE GROUND HAS ALREADY BEEN SATURATED BY RECENT RAINFALL...  
ADDITIONAL HEAVY RAIN HAS RESULTED IN EXCESSIVE RUNOFF...LEADING   
THE LIKELIHOOD OF FLASH FLOODING IN THE WARNED AREA.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...
QUICKLY MOVE TO HIGHER GROUND TO ESCAPE FLOOD WATERS.

LAT...LON 4070 9150 4035 9157 4037 9204 4083 9202

REA

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 2:39 AM CDTSevere Thunderstorm WarningDVNScotland36 min
Jun 13, 3:50 AM CDTFlash Flood WarningDVNClark, Scotland4 hr
Jun 12, 7:08 PM CDTTornado WarningDVNWashington22 min
Jun 12, 8:22 PM CDTSevere Thunderstorm WarningDVNLee28 min
Jun 12, 10:47 PM CDTFlash Flood WarningDVNDes Moines5 hr

Nearby

Flash Flood Warnings in Missouri, 2002Flash Flood Warnings in Iowa, 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.