Alert archive / Iowa / Flash Flood Warnings in 2010

Flash Flood Warning 13, NWS Des Moines, IA

June 5, 2010Decatur County, Ringgold County, Taylor County, Iowa

NWS Des Moines, IA issued this flash flood warning at Jun 5, 2010, 12:55 AM CDT for Decatur County, Ringgold County, Taylor County, Iowa. It was in force for 6 hr. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 5, 2010, 12:55 AM CDT (05:55 UTC)
Expired: Jun 5, 2010, 7:00 AM CDT
In force: 6 hr
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Flood severity: None

Counties Decatur County, IA, Ringgold County, IA, Taylor County, IA

The radar

The Des Moines radar (KDMX), 127 km from the middle of the area, began a volume at 05:58 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.

What was reported inside it

Time	Report	Where	Remark
Jun 5, 1:11 AM CDT	FLASH FLOOD	Lamoni, IA	8 INCHES OF STANDING WATER IN TOWN...HWY 69 CLOSED DUE TO WATER ON ROAD...VEHICLES STRANDED
Jun 5, 1:50 AM CDT	FLASH FLOOD	1 N Redding, IA	WATER COVERING HWY P27...DITCHES ALSO FULL OF WATER.
Jun 5, 2:53 AM CDT	HEAVY RAIN 3.19	Lamoni Airport, IA	RAINFALL TOTAL MEASURED IN THE PAST 3 HOURS.
Jun 5, 7:00 AM CDT	FLASH FLOOD	4 Ese Delphos, IA	HIGHWAY 169 BRIDGE CLOSED JUST SOUTH OF THE 10 MILE MARKER DUE TO SCOURING OF WATER FROM THE MIDDLE FORK OF THE GRAND RIVER BEING OUT OF ITS BANKS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 5.9 hours before the alert went out and 192 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: 1311 J/kg
Mixed-layer CIN: -70 J/kg
Mixed-layer LCL: 1604 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 228 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

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

611 
WGUS53 KDMX 050555
FFWDMX
IAC053-159-173-051200-
/O.NEW.KDMX.FF.W.0013.100605T0555Z-100605T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
1255 AM CDT SAT JUN 5 2010

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

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

* UNTIL 700 AM CDT

* AT 1253 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
  WARNED AREA. ANYWHERE FROM 3 TO 6 INCHES PER HOUR RAINFALL RATES
  CAN BE EXPECTED OVERNIGHT ACROSS THE WARNED AREA.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BEDFORD...LAMONI...LEON AND MOUNT AYR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

&&

LAT...LON 4058 9476 4083 9475 4082 9356 4058 9356
      4056 9414

$$

PODRAZIK

6 follow-up statements

687 
WGUS73 KDMX 050618
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
118 AM CDT SAT JUN 5 2010

IAC053-159-173-051200-
/O.CON.KDMX.FF.W.0013.000000T0000Z-100605T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DECATUR IA-RINGGOLD IA-TAYLOR IA-
118 AM CDT SAT JUN 5 2010

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EASTERN TAYLOR...
RINGGOLD AND DECATUR COUNTIES UNTIL 700 AM CDT...

AT 113 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. 

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BEDFORD...LAMONI...LEON AND MOUNT AYR.

AT 111 AM CDT...LAMONI POLICE DEPARTMENT REPORTED SIGNIFICANT 
AMOUNTS OF WATER...SOME SPOTS UP TO 8 INCHES DEEP...THROUGHOUT THE 
TOWN OF LAMONI ON MAIN STREET AND SEVERAL RESIDENTIAL STREETS.   
HIGHWAY 69 THROUGH LAMONI HAS BEEN CLOSED DUE TO INUNDATION OF WATER 
OVER THE ROAD. IN ADDITION...RESIDENTIAL EVACUATIONS IN LAMONI ARE 
BEING CONSIDERED BY THE LOCAL LAW ENFORCEMENT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 4058 9476 4083 9475 4082 9356 4058 9356
      4056 9414

$$

PODRAZIK

267 
WGUS73 KDMX 050701
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
201 AM CDT SAT JUN 5 2010

IAC053-159-173-051200-
/O.CON.KDMX.FF.W.0013.000000T0000Z-100605T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DECATUR IA-RINGGOLD IA-TAYLOR IA-
201 AM CDT SAT JUN 5 2010

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EASTERN TAYLOR...
RINGGOLD AND DECATUR COUNTIES UNTIL 700 AM CDT...

AT 158 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL POTENTIAL ACROSS THE WARNED 
AREA. RAINFALL RATES IN EXCESS OF 2 TO 3 INCHES PER HOUR CAN BE 
EXPECTED THROUGH THE EARLY MORNING HOURS OVER THE WARNED AREA. 

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BEDFORD...LAMONI...LEON AND MOUNT AYR.

AT 150 AM CDT...A TRAINED SPOTTER REPORTED WATER COVERING HIGHWAY 
P27 JUST NORTH OF REDDING...ALONG WITH DITCHES FULL OF WATER. 

AT 111 AM CDT...LAMONI POLICE DEPARTMENT REPORTED SIGNIFICANT 
AMOUNTS OF WATER...SOME SPOTS UP TO 8 INCHES DEEP...THROUGHOUT THE 
TOWN OF LAMONI ON MAIN STREET AND SEVERAL RESIDENTIAL STREETS.   
HIGHWAY 69 THROUGH LAMONI HAS BEEN CLOSED DUE TO INUNDATION OF WATER 
OVER THE ROAD. IN ADDITION...RESIDENTIAL EVACUATIONS IN LAMONI ARE 
BEING CONSIDERED BY THE LOCAL LAW ENFORCEMENT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 4058 9476 4083 9475 4082 9356 4058 9356
      4056 9414

$$

PODRAZIK

675 
WGUS73 KDMX 050806
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
306 AM CDT SAT JUN 5 2010

IAC053-159-173-051200-
/O.CON.KDMX.FF.W.0013.000000T0000Z-100605T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DECATUR IA-RINGGOLD IA-TAYLOR IA-
306 AM CDT SAT JUN 5 2010

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EASTERN TAYLOR...
RINGGOLD AND DECATUR COUNTIES UNTIL 700 AM CDT...

AT 259 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT FLASH 
FLOODING WAS OCCURRING THROUGHOUT THE TOWN OF LAMONI WHERE 2 TO 3 
FEET OF WATER WAS AFFECTING VARIOUS LOCATIONS. RESIDENTS ARE BEING 
EVACUATED DUE THE INUNDATION OF WATER IN SEVERAL HOMES IN LAMONI.

THUNDERSTORM ACTIVITY WILL CONTINUE TO AFFECT THE WARNED AREA 
THROUGH THE EARLY MORNING HOURS AND ADDITIONAL HEAVY RAIN AMOUNTS 
ARE LIKELY. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...BEDFORD...
LAMONI...LEON AND MOUNT AYR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 4058 9476 4083 9475 4082 9356 4058 9356
      4056 9414

$$

PODRAZIK

882 
WGUS73 KDMX 050946
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
446 AM CDT SAT JUN 5 2010

IAC053-159-173-051200-
/O.CON.KDMX.FF.W.0013.000000T0000Z-100605T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DECATUR IA-RINGGOLD IA-TAYLOR IA-
446 AM CDT SAT JUN 5 2010

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EASTERN TAYLOR...
RINGGOLD AND DECATUR COUNTIES UNTIL 700 AM CDT...

AT 446 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. 
RAINFALL RATES 1 TO 2 INCHES PER HOUR CAN BE EXPECTED OVER THE NEXT 
COUPLE OF HOURS. 

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO 
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING 
INCLUDE...BEDFORD...LAMONI...LEON AND MOUNT AYR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 4058 9476 4083 9475 4082 9356 4058 9356
      4056 9414

$$

PODRAZIK

176 
WGUS73 KDMX 051108
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
608 AM CDT SAT JUN 5 2010

IAC053-159-173-051200-
/O.CON.KDMX.FF.W.0013.000000T0000Z-100605T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DECATUR IA-RINGGOLD IA-TAYLOR IA-
608 AM CDT SAT JUN 5 2010

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EASTERN TAYLOR...
RINGGOLD AND DECATUR COUNTIES UNTIL 700 AM CDT...

AT 607 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL WILL MOVE INTO THE WARNED ARE 
OVER THE NEXT 1 TO 2 HOURS. RAINFALL RATES OF 1 TO 3 INCHES PER HOUR 
CAN BE EXPECTED.  

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING 
INCLUDE...BEDFORD...LAMONI...LEON AND MOUNT AYR. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 4058 9476 4083 9475 4082 9356 4058 9356
      4056 9414

$$

PODRAZIK

719 
WGUS73 KDMX 051157
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
657 AM CDT SAT JUN 5 2010

IAC053-159-173-051211-
/O.EXP.KDMX.FF.W.0013.000000T0000Z-100605T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DECATUR IA-RINGGOLD IA-TAYLOR IA-
657 AM CDT SAT JUN 5 2010

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR EASTERN TAYLOR...
RINGGOLD AND DECATUR COUNTIES WILL BE ALLOWED TO EXPIRE AT 700 AM
CDT...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. 
HOWEVER...ANOTHER ROUND OF THUNDERSTORMS IS EXPECTED TO AFFECT THE 
AREA THROUGH THE MID MORNING HOURS AND MAY LEAD TO ADDITIONAL 
FLOODING PROBLEMS.  AN AREAL FLOOD WARNING WILL REPLACE THE FLASH 
FLOOD WARNING FOR THE AREA. PLEASE REPORT ANY FLOODING PROBLEMS  
TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 4058 9476 4083 9475 4082 9356 4058 9356
      4056 9414

$$

PODRAZIK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 4, 8:58 PM CDT	Severe Thunderstorm Warning	DMX	Appanoose	36 min
Jun 4, 9:24 PM CDT	Severe Thunderstorm Warning	DMX	Davis	36 min
Jun 5, 12:07 AM CDT	Severe Thunderstorm Warning	DMX	Ringgold, Taylor	38 min
Jun 5, 12:57 AM CDT	Severe Thunderstorm Warning	DMX	Ringgold, Taylor	48 min
Jun 5, 1:27 AM CDT	Severe Thunderstorm Warning	DMX	Taylor	25 min
Jun 5, 1:39 AM CDT	River Flood Warning	DMX	Wapello	26 hr
Jun 5, 2:45 AM CDT	Flash Flood Warning	DMX	Adair, Adams, Cass, Taylor	6 hr
Jun 5, 2:51 AM CDT	Severe Thunderstorm Warning	DMX	Adams, Taylor	39 min
Jun 5, 2:52 AM CDT	Flash Flood Warning	DMX	Clarke, Decatur, Ringgold, Union	6 hr
Jun 5, 3:22 AM CDT	River Flood Warning	DMX	Decatur	3 days
Jun 5, 3:28 AM CDT	Severe Thunderstorm Warning	DMX	Ringgold, Taylor	47 min
Jun 5, 4:16 AM CDT	River Flood Warning	DMX	Taylor	49 min
Jun 5, 7:01 AM CDT	Areal Flood Advisory	DMX	Decatur, Ringgold, Taylor	3 hr
Jun 5, 7:10 AM CDT	Areal Flood Warning	DMX	Decatur, Ringgold, Taylor, Wayne	24 hr
Jun 5, 7:35 AM CDT	River Flood Warning	DMX	Taylor	14 hr
Jun 5, 8:36 AM CDT	Areal Flood Warning	DMX	Adams, Clarke, Decatur, Ringgold, Taylor, Union	22 hr
Jun 5, 12:36 PM CDT	River Flood Warning	DMX	Appanoose, Wayne	23 hr
Jun 5, 4:18 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Hamilton, Webster	57 min
Jun 5, 4:58 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton, Hardin, Marshall, Story	47 min

Nearby

Flash Flood Warnings in Iowa, 2010 Every flash flood warning in 2010

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.