Alert archive / Missouri / Flash Flood Warnings in 2003

Flash Flood Warning 8, NWS Quad Cities, IA

July 9, 2003Scotland County, Missouri

NWS Quad Cities, IA issued this flash flood warning at Jul 9, 2003, 8:08 PM CDT for Scotland County, Missouri. It was in force for 6 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 9, 2003, 8:08 PM CDT (01:08 UTC)
Expired
Jul 10, 2003, 2:00 AM CDT
In force
6 hr
Issued by
NWS Quad Cities, IA
Area
Counties, with a storm outline in the text

County Scotland County, MO

The radar

The Quad Cities radar (KDVN), 180 km from the middle of the area, began a volume at 01:10 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, 1.1 hours before the alert went out and 185 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 2003-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1258 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 2003-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 154 square meters per square second.19395878Sfc1 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
1258 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
757 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
154 m²/s²
0-3 km storm-relative helicity
228 m²/s²
Significant tornado parameter
0.9
Supercell composite
5.0

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KDVN 100112
FFWDVN
MOC199-100700-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
808 PM CDT WED JUL 9 2003

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

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

* UNTIL 200 AM CDT

* AT 808 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN WERE LOCATED OVER THE
  WARNED AREA.

* THUNDERSTORMS WERE CONTINUOUSLY REDEVELOPING AND MOVING OVER
  PORTIONS OF THE WARNED AREA...LEADING TO VERY HIGH RAINFALL RATES
  AND THE LIKELIHOOD OF FLASH FLOODING IN THE WARNED AREA. FLOODING 
  CAN BE EXPECTED IN LOW LYING AREAS AS WELL AS NEAR THE NORTH FABIUS
  RIVER AND NEAR THE LITTLE FOX RIVER IN CENTRAL AND NORTHERN 
  SCOTLAND COUNTY. 

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.

LAT...LON 4061 9198 4032 9198 4032 9233 4058 9235

$$

ERVIN
2 follow-up statements
000 
WGUS73 KDVN 100516
FFSDVN
MOC199-100700-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1214 AM CDT THU JUL 10 2003

...A FLASH FLOOD WARNING CONTINUES UNTIL 200 AM CDT FOR SCOTLAND
COUNTY IN NORTHEAST MISSOURI...

AT 1214 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
HEAVY RAINFALL HAS ENDED ACROSS THE WARNED AREA...BUT FLASH FLOODING
CONTINUES TO OCCUR. THE ARE MOST AT RISK OF SEEING FLASH FLOOD 
CONDITIONS IS ACROSS NORTHEASTERN SCOTLAND COUNTY...WHERE NATIONAL 
WEATHER SERVICE DOPPLER RADAR INDICATES THAT UP TO 4 INCHES OF RAIN 
HAS FALLEN THIS PAST EVENING.  RUNOFF WILL CONTINUE FROM THIS RAIN 
THROUGH THE EARLY MORNING HOURS.

REPORT FLASH FLOODING TO YOUR NEAREST LOCAL LAW ENFORCEMENT AGENCY...
FOR RELAY TO THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES.

$$

ERVIN
000 
WGUS73 KDVN 100655
FFSDVN
MOC199-100715-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
155 AM CDT THU JUL 10 2003

...THE FLASH FLOOD WARNING WHICH WAS IN EFFECT UNTIL 2 AM CDT
FOR...SCOTLAND COUNTY IN EXTREME NORTHEAST MISSOURI HAS BEEN ALLOWED 
TO EXPIRE...

THE HEAVY RAINFALL HAS SUBSIDED 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.

$$

NICHOLS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 7:18 PM CDTFlash Flood WarningDVNClark6 hr
Jul 9, 8:16 PM CDTSevere Thunderstorm WarningDVNClark, Scotland64 min
Jul 9, 9:03 PM CDTTornado WarningDVNClark42 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.