Alert archive / Missouri / Flash Flood Warnings in 2003

Flash Flood Warning 5, NWS Quad Cities, IA

July 5, 2003Clark County, Missouri

NWS Quad Cities, IA issued this flash flood warning at Jul 5, 2003, 9:54 PM CDT for Clark County, Missouri. 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
Jul 5, 2003, 9:54 PM CDT (02:54 UTC)
Expired
Jul 6, 2003, 3:00 AM CDT
In force
5 hr
Issued by
NWS Quad Cities, IA
Area
Counties, with a storm outline in the text

County Clark County, MO

The radar

The Quad Cities radar (KDVN), 162 km from the middle of the area, began a volume at 02:53 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 2.9 hours before the alert went out and 167 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 2003-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 628 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 2003-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 133 square meters per square second.193958Sfc1 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
628 J/kg
Mixed-layer CIN
-140 J/kg
Mixed-layer LCL
1685 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
133 m²/s²
0-3 km storm-relative helicity
261 m²/s²
Significant tornado parameter
0.1
Supercell composite
8.4

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KDVN 060254
FFWDVN
MOC045-060800-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
954 PM CDT SAT JUL 5 2003

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CLARK COUNTY IN NORTHEAST MISSOURI

* UNTIL 300 AM CDT

* AT 949 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
SLOW-MOVING THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER CLARK 
COUNTY.

* NATIONAL WEATHER SERVICE DOPPLER RADAR AND SPOTTERS ESTIMATE THAT 
BETWEEN 3 AND 4 INCHES OF RAIN HAS FALLEN OVER NORTHERN CLARK 
COUNTY.  ADDITIONAL HEAVY RAINFALL WILL CAUSE LOCAL STREAMS AND 
RIVERS TO RISE RAPIDLY AND OVERFLOW THEIR BANKS.  HEAVY RAIN MAY 
ALSO FLOOD ROADWAYS AND OTHER LOW-LYING AREAS.

DO NOT DRIVE YOUR VEHICLE INTO WATER COVERED ROADWAYS. THE WATER MAY
BE TOO DEEP TO CROSS SAFELY OR THE ROAD COULD BE WASHED OUT. VEHICLES
CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.

CAMPERS SHOULD AVOID CAMPING ALONG STREAMS AND FLOOD PRONE LOW LYING 
AREAS. MOVE QUICKLY TO HIGHER GROUND.

LAT...LON 4037 9147 4026 9152 4027 9194 4061 9194
          4060 9175

$$

WOLF
2 follow-up statements
000 
WGUS73 KDVN 060356
FFSDVN
MOC045-060800-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1056 PM CDT SAT JUL 5 2003

...A FLASH FLOOD WARNING CONTINUES UNTIL 300 AM CDT FOR CLARK COUNTY
IN NORTHEAST MISSOURI...

AT 1048 PM CDT...NATIONAL WEATHER DOPPLER RADAR INDICATED THAT HEAVY 
RAIN HAS MOVED OUT OF CLARK COUNTY...BUT THE THREAT OF FLASH 
FLOODING PERSISTS.  

THIS THREAT IS A RESULT OF A RADAR ESTIMATED AND SPOTTER VERIFIED 3 
TO 4 INCHES OF RAINFALL WHICH FELL IN IN NORTHERN CLARK COUNTY... 
PLUS EVEN HEAVIER AMOUNTS WHICH FELL UPSTREAM IN SOUTHERN VAN BUREN 
COUNTY.  RUNOFF FROM VAN BUREN COUNTY WILL BE TRAVEL DOWNSTREAM 
THROUGH CLARK COUNTY EARLY THIS MORNING.

DO NOT DRIVE YOUR VEHICLE INTO WATER COVERED ROADWAYS. THE WATER MAY 
BE TOO DEEP TO CROSS SAFELY OR THE ROAD COULD BE WASHED OUT. VEHICLES
CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.  CAMPERS SHOULD 
AVOID CAMPING ALONG STREAMS AND FLOOD PRONE LOW LYING AREAS.

$$

WOLF
000 
WGUS73 KDVN 060621
FFSDVN
IAC111-177-ILC067-MOC045-060715-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
116 AM CDT SUN JUL 6 2003

...THE FLASH FLOOD WARNING WHICH WAS IN EFFECT UNTIL 300 AM CDT FOR 
VAN BUREN...LEE...CLARK AND HANCOCK COUNTIES HAS BEEN CANCELED...

THE HEAVY RAINFALL HAS ENDED OVER THE WARNED AREA. STREAMS AND CREEKS
HAVE RECEDED OR WERE BEGINNING TO RECEDE...ENDING THE FLOOD THREAT.
EVEN THOUGH STREAMS AND CREEKS WERE RECEDING...SOME ROADWAYS MAY
STILL BE COVERED WITH WATER. MOTORISTS ARE ADVISED TO AVOID DRIVING
THROUGH FLOODED ROADWAYS.

A LINE OF THUNDERSTORMS OVER WESTERN IOWA...WILL MOVE QUICKLY 
EAST INTO THE AREA AFTER 4:00 AM. THIS LINE WILL HAVE THE POTENTIAL 
TO PRODUCE DAMAGING WINDS OF 60 TO 80 MPH AND TORRENTAIL RAIN...WITH
AN ADDITIONAL 1 TO 2 INCHES OF RAIN. THIS RAIN WOULD BE FALLING ON 
SATURATED GROUND...THUS INCREASING THE THREAT FOR LOCALIZED 
FLOODING. 

BE SURE TO STAY TUNED TO NOAA WEATHER RADIO...OR COMMERCIAL RADIO OR 
TELEVISION FOR POSSIBLE WATCHES AND WARNINGS. IF YOU LIVE IN A FLOOD 
PRONE AREA...BE PREPARED TO SEEK HIGHER GROUND.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 9:24 PM CDTSevere Thunderstorm WarningDVNClark66 min
Jul 5, 9:28 PM CDTSevere Thunderstorm WarningDVNScotland62 min

Nearby

Flash Flood Warnings in Missouri, 2003Every flash flood warning in 2003

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; radar from the NEXRAD Level II archive.