Alert archive / Iowa / Flash Flood Warnings in 2004

Flash Flood Warning 28, NWS Des Moines, IA

May 27, 2004Ringgold County, Taylor County, Iowa

NWS Des Moines, IA issued this flash flood warning at May 27, 2004, 11:20 AM CDT for Ringgold County, Taylor County, Iowa. It was in force for 3 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
May 27, 2004, 11:20 AM CDT (16:20 UTC)
Expired
May 27, 2004, 2:15 PM CDT
In force
3 hr
Issued by
NWS Des Moines, IA
Area
Counties, with a storm outline in the text

Counties Ringgold County, IA, Taylor County, IA

The radar

The Des Moines radar (KDMX), 120 km from the middle of the area, began a volume at 16:20 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

Omaha, NE (KOAX), launched 12:00Z, 4.3 hours before the alert went out and 177 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, Omaha, NE at 12:00Z on 2004-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 97 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, Omaha, NE at 12:00Z on 2004-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -37 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
97 J/kg
Mixed-layer CIN
-239 J/kg
Mixed-layer LCL
906 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
-37 m²/s²
0-3 km storm-relative helicity
60 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 
WGUS53 KDMX 271621
FFWDMX
IAC159-173-271915-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
1120 AM CDT THU MAY 27 2004

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  RINGGOLD COUNTY IN SOUTH CENTRAL IOWA
  TAYLOR COUNTY IN SOUTHWEST IOWA

* UNTIL 215 PM

* AT 1115 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH FLASH FLOOD PRODUCING RAINS IN THE WARNING AREA.

* THUNDERSTORMS ARE CONTINUOUSLY REDEVELOPING...RESULTING IN   
EXCESSIVE RAINFALL. RAINFALL RATES WILL AVERAGE 1 TO 2 INCHES PER   
HOUR. THIS WILL PRODUCE FLASH FLOODING ALONG CROOKED CREEK AND MOST 
SMALL STREAMS AND CREEKS...MAINLY IN NORTHERN PORTIONS OF BOTH 
COUNTIES.

OTHER WARNING LOCATIONS INCLUDE...
BEACONSFIELD...BEDFORD...BEDFORD MUNICIPAL AIRPORT...BENTON...
BLOCKTON...CLEARFIELD...CONWAY...DELPHOS...DIAGONAL...ELLSTON...
GRAVITY...KELLERTON...LENOX...MALOY...MOUNT AYR...MOUNT AYR MUNICIPAL
AIRPORT...NEW MARKET...REDDING...SHARPSBURG AND TINGLEY

FLASH FLOODS OCCUR QUICKLY...MOVE TO HIGHER GROUND. AVOID WATER
COVERED ROADS...THE ROAD MAY BE WASHED OUT. LESS THAN ONE FOOT OF
FAST FLOWING WATER CAN SWEEP AN AUTOMOBILE OFF THE ROAD.

LAT...LON 4090 9403 4058 9404 4059 9492 4090 9493

$$

KULA
3 follow-up statements
000 
WGUS73 KDMX 271716
FFSDMX
IAC159-173-271915-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1212 PM CDT THU MAY 27 2004

...A FLASH FLOOD WARNING CONTINUES FOR TAYLOR AND RINGGOLD COUNTIES
UNTIL 215 PM...

AT 1212 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED ANOTHER 
CLUSTER OF THUNDERSTORMS WITH FLASH FLOOD PRODUCING RAINS 18 MILES 
NORTHWEST OF NEW MARKET...OR ABOUT 89 MILES SOUTHWEST OF DES 
MOINES...MOVING EAST AT 20 MPH.

THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL BE...

  9 MILES NORTH OF SHARPSBURG AROUND 120 PM...
  NEAR LENOX AROUND 130 PM...
  8 MILES NORTH OF CLEARFIELD AROUND 140 PM...
  7 MILES NORTH OF DIAGONAL AROUND 200 PM AND
  5 MILES NORTHWEST OF TINGLEY AROUND 220 PM.

THE GROUND IS ALREADY SATURATED BY RAINFALL IN THE WARNING AREA...AND
ADDITIONAL RAIN WILL CONTINUE TO PRODUCE SIGNIFICANT RUNOFF INTO
SWOLLEN WATERWAYS. THUNDERSTORMS ARE EXPECTED TO PRODUCE RAINFALL 
RATES OF 1 TO 2 INCHES PER HOUR. THIS WILL PRODUCE FLASH FLOODING 
ALONG TRIBUTARIES AND CREEKS OF THE GRAND AND PLATTE RIVER INCLUDING 
LOTTS CREEK IN RINGGOLD COUNTY...AND TRIBUTARIES AND CREEKS 
ADJOINING THE ONE HUNDRED AND TWO RIVER...INCLUDING ROSE BRANCH AND 
LONZO CREEKS.

FLASH FLOODS OCCUR QUICKLY...MOVE TO HIGHER GROUND. AVOID WATER
COVERED ROADS...THE ROAD MAY BE WASHED OUT. LESS THAN ONE FOOT OF
FAST FLOWING WATER CAN SWEEP AN AUTOMOBILE OFF THE ROAD.

LAT...LON 4090 9491 4059 9491 4060 9405 4089 9405

$$

KULA
000 
WGUS73 KDMX 271802
FFSDMX
IAC159-173-271915-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
100 PM CDT THU MAY 27 2004

...A FLASH FLOOD WARNING CONTINUES FOR TAYLOR AND RINGGOLD COUNTIES
UNTIL 215 PM...

AT 100 PM...DOPPLER RADAR INDICATES FLASH FLOOD PRODUCING 
THUNDERSTORMS 4 MILES SOUTH OF NEW MARKET...OR ABOUT 92 MILES 
SOUTHWEST OF DES MOINES...MOVING EAST AT 35 MPH.

THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL BE...

  NEAR BEDFORD MUNICIPAL AIRPORT AROUND 105 PM AND
  NEAR BLOCKTON AROUND 120 PM.

THE GROUND IS ALREADY SATURATED BY RAINFALL IN THE WARNING AREA...AND
ADDITIONAL RAIN WILL CONTINUE TO PRODUCE SIGNIFICANT RUNOFF INTO
SWOLLEN WATERWAYS. THUNDERSTORMS ARE EXPECTED TO PRODUCE RAINFALL 
RATES OF 1 TO 2 INCHES PER HOUR. THIS WILL PRODUCE FLASH FLOODING 
ALONG SMALL STREAMS AND CREEKS IN THE WARNED AREA. GRAVEL ROADS WILL 
BECOME IMPASSIBLE VERY EASILY.

FLASH FLOODS OCCUR QUICKLY...MOVE TO HIGHER GROUND. AVOID WATER
COVERED ROADS...THE ROAD MAY BE WASHED OUT. LESS THAN ONE FOOT OF
FAST FLOWING WATER CAN SWEEP AN AUTOMOBILE OFF THE ROAD.

LAT...LON 4090 9493 4060 9492 4058 9404 4088 9405

$$

KULA
000 
WGUS73 KDMX 271917
FFSDMX
IAC159-173-271945-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
214 PM CDT THU MAY 27 2004

...THE FLASH FLOOD WARNING WHICH WAS IN EFFECT FOR TAYLOR AND
RINGGOLD COUNTIES UNTIL 215 PM HAS BEEN ALLOWED TO EXPIRE...

THE STORMS HAVE WEAKENED AND ARE NO LONGER CAPABLE OF INTENSE RAINS
TO PRODUCE FLASH FLOODS...THUS THE WARNING HAS BEEN ALLOWED TO 
EXPIRE.  LAW ENFORCEMENT REPORTS THAT WATER HAS RECEDED SINCE THE 
HEAVY RAINS HAVE CEASED AND NO FURTHER FLASH FLOODING.

MODERATE RAINFALL CONTINUES ACROSS SOUTHERN TAYLOR AND MUCH OF 
SOUTHEAST RINGGOLD COUNTIES...BUT RATES ARE NOT HIGH ENOUGH TO 
PRODUCE FLASH FLOODING.  MOTORISTS SHOULD CONTINUE TO USE CAUTION AS 
MANY RURAL GRAVEL ROADS ARE SATURATED.

FLASH FLOODS OCCUR QUICKLY...MOVE TO HIGHER GROUND. AVOID WATER
COVERED ROADS...THE ROAD MAY BE WASHED OUT. LESS THAN ONE FOOT OF
FAST FLOWING WATER CAN SWEEP AN AUTOMOBILE OFF THE ROAD.

LAT...LON 4089 9494 4059 9491 4059 9403 4090 9403

$$

KULA

The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 27, 11:03 AM CDTSevere Thunderstorm WarningDMXRinggold42 min
May 27, 11:07 AM CDTSevere Thunderstorm WarningDMXTaylor38 min
May 27, 11:23 AM CDTSevere Thunderstorm WarningDMXDecatur52 min
May 27, 11:32 AM CDTFlash Flood WarningDMXDecatur3 hr
May 27, 11:45 AM CDTSevere Thunderstorm WarningDMXRinggold45 min
May 27, 12:00 PM CDTSevere Thunderstorm WarningDMXWayne45 min
May 27, 12:30 PM CDTSevere Thunderstorm WarningDMXDecatur45 min
May 27, 12:38 PM CDTFlash Flood WarningDMXAdams3 hr
May 27, 12:41 PM CDTTornado WarningDMXAppanoose, Wayne49 min
May 27, 1:01 PM CDTSevere Thunderstorm WarningDMXWayne44 min
May 27, 1:05 PM CDTSevere Thunderstorm WarningDMXTaylor40 min

Nearby

Flash Flood Warnings in Iowa, 2004Every flash flood warning in 2004

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.