Alert archive / Iowa / Flash Flood Warnings in 2013

Flash Flood Warning 39, NWS Des Moines, IA

June 14, 2013Carroll County, Greene County, Iowa

NWS Des Moines, IA issued this flash flood warning at Jun 14, 2013, 9:34 PM CDT for Carroll County, Greene County, Iowa. 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: Jun 14, 2013, 9:34 PM CDT (02:34 UTC)
Expired: Jun 15, 2013, 3:30 AM CDT
In force: 6 hr
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Flood severity: None

Counties Carroll County, IA, Greene County, IA

The radar

The Des Moines radar (KDMX), 101 km from the middle of the area, began a volume at 02:33 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 00:00Z, 2.6 hours before the alert went out and 145 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: 3825 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 1255 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 145 m²/s²
0-3 km storm-relative helicity: 467 m²/s²
Significant tornado parameter: 4.2
Supercell composite: 29.6

Open this sounding in Storm Lab

The text

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

246 
WGUS53 KDMX 150234
FFWDMX
IAC027-073-150830-
/O.NEW.KDMX.FF.W.0039.130615T0234Z-130615T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
934 PM CDT FRI JUN 14 2013

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CARROLL COUNTY IN WEST CENTRAL IOWA...
  WEST CENTRAL GREENE COUNTY IN WEST CENTRAL IOWA...

* UNTIL 330 AM CDT

* AT 934 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE 
  WARNED AREA. DOPPLER RADAR ESTIMATES INDICATE THAT TWO TO THREE
  AND A HALF INCHES OF RAIN HAS FALLEN IN LESS THAN TWO HOURS.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  CARROLL...GLIDDEN AND MANNING.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...
COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND
OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.

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. TURN AROUND...DONT DROWN.

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 4216 9509 4215 9462 4203 9433 4194 9478
      4186 9478 4186 9508 4187 9510 4199 9509

$$

SMALL

5 follow-up statements

216 
WGUS73 KDMX 150331
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1031 PM CDT FRI JUN 14 2013

IAC027-073-150830-
/O.CON.KDMX.FF.W.0039.000000T0000Z-130615T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GREENE IA-CARROLL IA-
1031 PM CDT FRI JUN 14 2013

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR CARROLL AND WEST CENTRAL
GREENE COUNTIES UNTIL 330 AM CDT...

AT 1027 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.  
DOPPLER RADAR ESTIMATES INDICATE THAT FOUR TO SIX INCHES OF RAIN MAY 
HAVE FALLEN BETWEEN HIGHWAYS 30 AND 141...INCLUDING HIGHWAY 71 SOUTH 
OF CARROLL.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO 
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING 
INCLUDE...CARROLL...GLIDDEN...MANNING AND WILLEY.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
SHORT CREEK...CEDAR CREEK...STORM CREEK...HARDIN CREEK...WILLOW 
CREEK...DEDHAM CREEK...BEAVER CREEK...EAST BOYER RIVER...MALONY 
BRANCH...BRUSHY CREEK...SPRING BRANCH...PURGATORY CREEK...DOE 
BROOK...WILLEY BRANCH...BUCK RUN...CALAMUS CREEK AND GREENBRIER 
CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE ALSO SUBJECT TO FLOODING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR AND THE
WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. TURN
AROUND...DONT DROWN.

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 4216 9509 4215 9462 4203 9433 4194 9478
      4186 9478 4186 9508 4187 9510 4199 9509

$$

SMALL

828 
WGUS73 KDMX 150440
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1140 PM CDT FRI JUN 14 2013

IAC027-073-150830-
/O.CON.KDMX.FF.W.0039.000000T0000Z-130615T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GREENE IA-CARROLL IA-
1140 PM CDT FRI JUN 14 2013

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR CARROLL AND WEST CENTRAL
GREENE COUNTIES UNTIL 330 AM CDT...

AT 1136 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA WITH 
RAINFALL ESTIMATES OF 3 TO 6 INCHES IN SOME AREAS.  THE HEAVIEST 
RAINFALL HAS SHIFTED TO THE SOUTH HOWEVER.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH  FLOODING INCLUDE...
CARROLL...GLIDDEN AND MANNING.

LAW ENFORCEMENT REPORTED NUMEROUS ROAD CLOSURES DUE TO FLOODING. ON 
HIGHWAY 25 AT 250TH STREET AN AREA OF WATER 100 FEET WIDE WAS 
FLOWING OVER HIGHWAY 25.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
NORTH RACCOON RIVER...SHORT CREEK...WEST NISHNABOTNA RIVER...MIDDLE
RACCOON RIVER...CEDAR CREEK...STORM CREEK...HARDIN CREEK...WILLOW
CREEK...DEDHAM CREEK...BEAVER CREEK...EAST BOYER RIVER...EAST
NISHNABOTNA RIVER...MALONY BRANCH...WEST BRANCH WEST NISHNABOTNA
RIVER...EAST BRANCH WEST NISHNABOTNA RIVER...BRUSHY CREEK...SPRING
BRANCH...PURGATORY CREEK...DOE BROOK...WILLEY BRANCH...BUCK RUN...
CALAMUS CREEK AND GREENBRIER CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE ALSO SUBJECT TO FLOODING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR AND THE
WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. TURN
AROUND...DONT DROWN.

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 4216 9509 4215 9462 4203 9433 4194 9478
      4186 9478 4186 9508 4187 9510 4199 9509

$$

068 
WGUS73 KDMX 150555
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1255 AM CDT SAT JUN 15 2013

IAC027-073-150830-
/O.CON.KDMX.FF.W.0039.000000T0000Z-130615T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GREENE IA-CARROLL IA-
1255 AM CDT SAT JUN 15 2013

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR CARROLL AND WEST CENTRAL
GREENE COUNTIES UNTIL 330 AM CDT...

AT 1252 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT 3 TO 6 INCHES OF RAIN HAS FALLEN OVER PARTS OF THE WARNING 
AREA.  THE HEAVIEST RAINFALL HAS SHIFTED TO THE SOUTH AND 
EAST...HOWEVER RAIN WILL CONTINUE FOR THE NEXT FEW HOURS.

HEAVY RAIN CONTINUES TO FALL ACROSS THE WARNED AREA. RUNOFF FROM THIS
EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS
THAT WILL EXPERIENCE FLASH  FLOODING INCLUDE...CARROLL...GLIDDEN AND
MANNING.

LAW ENFORCEMENT REPORTED NUMEROUS ROAD CLOSURES DUE TO FLOODING. ON 
HIGHWAY 25 AT 250TH STREET AN AREA OF WATER 100 FEET WIDE WAS 
FLOWING OVER HIGHWAY 25.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
NORTH RACCOON RIVER...SHORT CREEK...WEST NISHNABOTNA RIVER...MIDDLE
RACCOON RIVER...CEDAR CREEK...STORM CREEK...HARDIN CREEK...WILLOW
CREEK...DEDHAM CREEK...BEAVER CREEK...EAST BOYER RIVER...EAST
NISHNABOTNA RIVER...MALONY BRANCH...WEST BRANCH WEST NISHNABOTNA
RIVER...EAST BRANCH WEST NISHNABOTNA RIVER...BRUSHY CREEK...SPRING
BRANCH...PURGATORY CREEK...DOE BROOK...WILLEY BRANCH...BUCK RUN...
CALAMUS CREEK AND GREENBRIER CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE ALSO SUBJECT TO FLOODING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR AND THE
WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. TURN
AROUND...DONT DROWN.

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 4216 9509 4215 9462 4203 9433 4194 9478
      4186 9478 4186 9508 4187 9510 4199 9509

$$

796 
WGUS73 KDMX 150659
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
159 AM CDT SAT JUN 15 2013

IAC027-073-150830-
/O.CON.KDMX.FF.W.0039.000000T0000Z-130615T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GREENE IA-CARROLL IA-
159 AM CDT SAT JUN 15 2013

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR CARROLL AND WEST CENTRAL
GREENE COUNTIES UNTIL 330 AM CDT...

AT 159 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED SIGNIFICANT 
FLOODING ACROSS THE WARNED AREA FROM EARLIER HEAVY RAIN.

SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING 
INCLUDE...CARROLL...GLIDDEN AND MANNING.

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 4216 9509 4215 9462 4203 9433 4194 9478
      4186 9478 4186 9508 4187 9510 4199 9509

$$

LEE

444 
WGUS73 KDMX 150833
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
333 AM CDT SAT JUN 15 2013

IAC027-073-150848-
/O.EXP.KDMX.FF.W.0039.000000T0000Z-130615T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GREENE IA-CARROLL IA-
333 AM CDT SAT JUN 15 2013

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR CARROLL AND WEST
CENTRAL GREENE COUNTIES HAS BEEN ALLOWED TO EXPIRE...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED WERE BEGINNING TO RECEDE...ENDING THE FLASH 
FLOOD THREAT. HOWEVER...WATER IS STILL AFFECTING SOME ROADS AND LOW 
LYING AREAS AND AN AREAL FLOOD WARNING HAS BEEN ISSUED FOR THE AREA. 
IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW 
ENFORCEMENT AGENCY.

LAT...LON 4216 9509 4215 9462 4203 9433 4194 9478
      4186 9478 4186 9508 4187 9510 4199 9509

$$

LEE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 14, 8:16 PM CDT	Severe Thunderstorm Warning	DMX	Audubon, Carroll, Greene, Guthrie	44 min
Jun 14, 8:39 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Greene	51 min
Jun 14, 9:00 PM CDT	Severe Thunderstorm Warning	DMX	Carroll, Greene	45 min
Jun 14, 9:06 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Dallas, Guthrie, Madison	54 min
Jun 14, 9:17 PM CDT	Flash Flood Warning	DMX	Carroll, Greene, Guthrie	6 hr
Jun 14, 9:41 PM CDT	Severe Thunderstorm Warning	DMX	Audubon, Boone, Carroll, Dallas, Greene, Guthrie	49 min
Jun 14, 9:49 PM CDT	Severe Thunderstorm Warning	DMX	Madison	26 min
Jun 14, 10:00 PM CDT	Severe Thunderstorm Warning	DMX	Dallas, Guthrie	45 min
Jun 14, 10:50 PM CDT	Flash Flood Warning	DMX	Adair, Audubon, Dallas, Guthrie, Madison	6 hr
Jun 14, 10:50 PM CDT	Severe Thunderstorm Warning	DMX	Madison, Union, Warren	55 min
Jun 14, 11:13 PM CDT	Severe Thunderstorm Warning	DMX	Dallas, Polk	47 min
Jun 14, 11:23 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Decatur, Lucas, Ringgold, Union, Warren and 1 more	52 min
Jun 14, 11:44 PM CDT	Severe Thunderstorm Warning	DMX	Warren	31 min
Jun 15, 1:56 AM CDT	Areal Flood Warning	DMX	Adair, Audubon, Dallas, Guthrie, Madison	8 hr
Jun 15, 3:33 AM CDT	Areal Flood Warning	DMX	Carroll, Greene, Guthrie	6 hr
Jun 15, 10:07 AM CDT	Areal Flood Warning	DMX	Madison	12 hr
Jun 15, 10:26 AM CDT	River Flood Warning	DMX	Polk	5 days
Jun 15, 10:26 AM CDT	River Flood Warning	DMX	Polk	5 days
Jun 15, 10:48 AM CDT	Severe Thunderstorm Warning	DMX	Humboldt, Kossuth, Palo Alto, Pocahontas	42 min

Nearby

Flash Flood Warnings in Iowa, 2013 Every flash flood warning in 2013

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.