Alert archive / Iowa / Flash Flood Warnings in 2015

Flash Flood Warning 2, NWS Des Moines, IA

June 11, 2015Ringgold County, Taylor County, Iowa

NWS Des Moines, IA issued this flash flood warning at Jun 11, 2015, 6:04 PM CDT for Ringgold County, Taylor County, Iowa. It was in force for 6 hr. 1 report 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 11, 2015, 6:04 PM CDT (23:04 UTC)
Expired
Jun 12, 2015, 12:00 AM CDT
In force
6 hr
Issued by
NWS Des Moines, IA
Area
Storm-based polygon
Flood severity
None

Counties Ringgold County, IA, Taylor County, IA

The radar

The Des Moines radar (KDMX), 146 km from the middle of the area, began a volume at 23:06 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

TimeReportWhereRemark
Jun 11, 9:30 PM CDTFLASH FLOOD6 Sse Bedford, IA300TH AND 317TH STREETS BETWEEN MONTANA AND ORANGE AVENUES CLOSED DUE TO WATER OVER THE ROADS.

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 12:00Z, 11.1 hours before the alert went out and 160 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 2015-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2015-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 288 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
630 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
288 m²/s²
0-3 km storm-relative helicity
416 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

570 
WGUS53 KDMX 112304
FFWDMX
IAC159-173-120500-
/O.NEW.KDMX.FF.W.0002.150611T2304Z-150612T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
604 PM CDT THU JUN 11 2015

THE NATIONAL WEATHER SERVICE IN DES MOINES  HAS ISSUED A

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

* UNTIL MIDNIGHT CDT
    
* AT 602 PM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING 
  HEAVY RAIN ACROSS THE WARNED AREA. ONE TO TWO INCHES OF RAIN HAVE 
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BEDFORD...BLOCKTON...REDDING...BENTON...MALOY...DELPHOS...
  ATHELSTAN...LAKE OF THREE FIRES STATE PARK AND BEDFORD MUNICIPAL
  AIRPORT.

ADDITIONAL RAINFALL AMOUNTS OF AROUND ONE INCH ARE POSSIBLE IN THE 
WARNED AREA. MUCH OF THIS AREA SAW HEAVY RAINFALL LAST NIGHT AND 
SOILS ARE VERY SATURATED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 4058 9492 4072 9491 4072 9434 4057 9435

$$

SKOW
3 follow-up statements
475 
WGUS73 KDMX 120022
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
722 PM CDT THU JUN 11 2015

IAC159-173-120500-
/O.CON.KDMX.FF.W.0002.000000T0000Z-150612T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RINGGOLD IA-TAYLOR IA-
722 PM CDT THU JUN 11 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
SOUTHWESTERN RINGGOLD AND SOUTHERN TAYLOR COUNTIES...

WHILE HEAVY RAINFALL HAS COME TO AN END ACROSS THE COUNTY...FLASH 
FLOODING IS STILL POSSIBLE AROUND SMALL STREAMS AND AREAS OF POOR 
DRAINAGE. AROUND TO TWO INCHES OF RAIN FELL IN THE WARNED AREA ON 
TOP OF THE HEAVY RAIN RECEIVED LAST NIGHT.

SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE... 
BEDFORD...BLOCKTON...REDDING...BENTON...MALOY...DELPHOS... 
ATHELSTAN...LAKE OF THREE FIRES STATE PARK AND BEDFORD MUNICIPAL 
AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 4058 9492 4072 9491 4072 9434 4057 9435

$$

SKOW
186 
WGUS73 KDMX 120256
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
956 PM CDT THU JUN 11 2015

IAC159-173-120500-
/O.CON.KDMX.FF.W.0002.000000T0000Z-150612T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RINGGOLD IA-TAYLOR IA-
956 PM CDT THU JUN 11 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
SOUTHWESTERN RINGGOLD AND SOUTHERN TAYLOR COUNTIES...

AT 952 PM CDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING IN 
SOUTHERN TAYLOR COUNTY. 300TH AND 317TH STREETS ARE CURRENTLY CLOSED 
DUE TO FLOODING BETWEEN MONTANA AND ORANGE AVENUES. UP TO TWO INCHES 
OF RAIN FELL DURING THIS EVENT.

SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE... 
BEDFORD...BLOCKTON...REDDING...BENTON...MALOY...DELPHOS... 
ATHELSTAN...LAKE OF THREE FIRES STATE PARK AND BEDFORD MUNICIPAL 
AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 4058 9492 4072 9491 4072 9434 4057 9435

$$

SKOW
160 
WGUS73 KDMX 120452
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1152 PM CDT THU JUN 11 2015

IAC159-173-120501-
/O.EXP.KDMX.FF.W.0002.000000T0000Z-150612T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RINGGOLD IA-TAYLOR IA-
1152 PM CDT THU JUN 11 2015

...THE FLASH FLOOD WARNING FOR SOUTHWESTERN RINGGOLD AND SOUTHERN
TAYLOR COUNTIES WILL EXPIRE AT 1200 AM CDT...

THE HEAVY RAIN HAS ENDED...AND FLASH FLOODING IS NO LONGER EXPECTED 
TO POSE A THREAT. SEVERAL ROADS MAY REMAIN CLOSED DURING THE 
OVERNIGHT HOURS AS THE WATERS RECEDE.

LAT...LON 4058 9492 4072 9491 4072 9434 4057 9435

$$

SKOW

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 10, 7:37 PM CDTSevere Thunderstorm WarningDMXWarren53 min
Jun 10, 7:41 PM CDTSevere Thunderstorm WarningDMXAppanoose, Davis49 min
Jun 10, 8:38 PM CDTSpecial Weather StatementDMXPolk52 min
Jun 10, 8:50 PM CDTSpecial Weather StatementDMXMahaska25 min
Jun 11, 12:52 PM CDTRiver Flood WarningDMXPolk8 days
Jun 11, 12:53 PM CDTRiver Flood WarningDMXPolk7 days
Jun 11, 12:54 PM CDTRiver Flood WarningDMXDallas, Greene7 days
Jun 11, 1:27 PM CDTRiver Flood WarningDMXDallas, Polk42 hr
Jun 11, 6:19 PM CDTSevere Thunderstorm WarningDMXTaylor41 min
Jun 11, 6:46 PM CDTSevere Thunderstorm WarningDMXAdams, Union33 min

Nearby

Flash Flood Warnings in Iowa, 2015Every flash flood warning in 2015

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.