Alert archive / Iowa / Flash Flood Warnings in 2011

Flash Flood Warning 12, NWS Des Moines, IA

June 9, 20114 counties in Iowa

NWS Des Moines, IA issued this flash flood warning at Jun 9, 2011, 11:11 PM CDT for 4 counties in Iowa. It was in force for 6 hr. 3 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 9, 2011, 11:11 PM CDT (04:11 UTC)
Expired
Jun 10, 2011, 5:00 AM CDT
In force
6 hr
Issued by
NWS Des Moines, IA
Area
Storm-based polygon
Flood severity
None

Counties Jasper County, IA, Madison County, IA, Marion County, IA, Warren County, IA

The radar

The Des Moines radar (KDMX), 44 km from the middle of the area, began a volume at 04:14 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 10, 12:54 AM CDTFLASH FLOODKnoxville, IAEM REPORTED SEVERAL STREETS FLOODING WITH 8 INCHES OF FLOWING WATER...
Jun 10, 3:12 AM CDTHEAVY RAIN 5.21Swan, IA24 HOUR RAINFALL MEASURED BY RIVER GAGE ALONG DES MOINES RIVER.
Jun 10, 3:44 AM CDTHEAVY RAIN 5.4St. Marys, IARAINFALL SINCE 300 PM THURSDAY.

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

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 4.2 hours before the alert went out and 235 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 2011-06-10Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 00:00Z on 2011-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 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
696 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
147 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.

427 
WGUS53 KDMX 100411
FFWDMX
IAC099-121-125-181-101000-
/O.NEW.KDMX.FF.W.0012.110610T0411Z-110610T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
1111 PM CDT THU JUN 9 2011

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL MADISON COUNTY IN SOUTH CENTRAL IOWA...
  NORTHERN MARION COUNTY IN SOUTH CENTRAL IOWA...
  NORTHERN WARREN COUNTY IN SOUTH CENTRAL IOWA...
  SOUTHERN JASPER COUNTY IN CENTRAL IOWA...

* UNTIL 500 AM CDT

* AT 1110 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
  THUNDERSTORMS WITH VERY HIGH RAINFALL RATES OF 2 TO 4 INCHES       
  ACROSS THE WARNED AREA. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  INDIANOLA...NEWTON...COLFAX...KNOXVILLE...MONROE...PLEASANTVILLE
  AND PRAIRIE CITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

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 4143 9292 4127 9312 4128 9389 4147 9389
      4147 9338 4149 9338 4150 9336 4148 9334
      4149 9333 4172 9335 4172 9291

$$

BEITLICH
7 follow-up statements
744 
WGUS73 KDMX 100512
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1212 AM CDT FRI JUN 10 2011

IAC099-121-125-181-101000-
/O.CON.KDMX.FF.W.0012.000000T0000Z-110610T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN IA-MARION IA-MADISON IA-JASPER IA-
1212 AM CDT FRI JUN 10 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHERN JASPER...EAST
CENTRAL MADISON...NORTHERN MARION AND NORTHERN WARREN COUNTIES UNTIL
500 AM CDT...

AT 1210 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HIGH RAINFALL RATES ACROSS THE WARNED AREA. 
AN ADDITIONAL 1 TO 2 INCHES IS POSSIBLE IN THE NEXT COUPLE OF HOURS.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO 
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING 
INCLUDE...INDIANOLA...NEWTON...COLFAX...KNOXVILLE...MONROE...PLEASANT
VILLE AND PRAIRIE CITY.

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 4143 9292 4127 9312 4128 9389 4147 9389
      4147 9338 4149 9338 4150 9336 4148 9334
      4149 9333 4172 9335 4172 9291

$$

BEITLICH
586 
WGUS73 KDMX 100615
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
115 AM CDT FRI JUN 10 2011

IAC099-121-125-181-101000-
/O.CON.KDMX.FF.W.0012.000000T0000Z-110610T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN IA-MARION IA-MADISON IA-JASPER IA-
115 AM CDT FRI JUN 10 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHERN JASPER...EAST
CENTRAL MADISON...NORTHERN MARION AND NORTHERN WARREN COUNTIES UNTIL
500 AM CDT...

AT 113 AM CDT...DOPPLER RADAR SHOWED SCATTERED THUNDERSTORMS WITH 
VERY HEAVY RAINFALL ACROSS THE WARNED AREA. AN ADDITIONAL INCH OF 
RAIN IS POSSIBLE.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH  FLOODING INCLUDE...
INDIANOLA...NEWTON...COLFAX...KNOXVILLE...MONROE...PLEASANTVILLE AND
PRAIRIE CITY.

AT 1254 AM CDT...THE EMERGENCY MANAGER REPORTED STREET FLOODING IN 
KNOXVILLE.

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 4143 9292 4127 9312 4128 9389 4147 9389
      4147 9338 4149 9338 4150 9336 4148 9334
      4149 9333 4172 9335 4172 9291

$$

BEITLICH
720 
WGUS73 KDMX 100652
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
152 AM CDT FRI JUN 10 2011

IAC099-121-125-181-101000-
/O.CON.KDMX.FF.W.0012.000000T0000Z-110610T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN IA-MARION IA-MADISON IA-JASPER IA-
152 AM CDT FRI JUN 10 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHERN JASPER...EAST
CENTRAL MADISON...NORTHERN MARION AND NORTHERN WARREN COUNTIES UNTIL
500 AM CDT...

AT 151 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. AN 
ADDITIONAL 1 TO 2 INCHES OF RAIN IS POSSIBLE.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH  FLOODING INCLUDE...
INDIANOLA...NEWTON...COLFAX...KNOXVILLE...MONROE...PLEASANTVILLE AND
PRAIRIE CITY.

AT 150 AM CDT...THE EMERGENCY MANAGER REPORTED SEVERAL FLOODED 
STREETS WITH SOME FLOOD PRONED GRAVEL ROADS CLOSED.

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 4143 9292 4127 9312 4128 9389 4147 9389
      4147 9338 4149 9338 4150 9336 4148 9334
      4149 9333 4172 9335 4172 9291

$$

BEITLICH
444 
WGUS73 KDMX 100732
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
232 AM CDT FRI JUN 10 2011

IAC099-121-125-181-101000-
/O.CON.KDMX.FF.W.0012.000000T0000Z-110610T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN IA-MARION IA-MADISON IA-JASPER IA-
232 AM CDT FRI JUN 10 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHERN JASPER...EAST
CENTRAL MADISON...NORTHERN MARION AND NORTHERN WARREN COUNTIES UNTIL
500 AM CDT...

AT 230 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. UP TO 
4 INCHES OF RAIN HAVE FALLEN...AND AN ADDITIONAL 1 TO 2 INCHES ARE 
POSSIBLE.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH  FLOODING INCLUDE...
INDIANOLA...NEWTON...COLFAX...KNOXVILLE...MONROE...PLEASANTVILLE AND
PRAIRIE CITY.

AT 228 AM CDT...EMERGENCY MANAGERS REPORTED SEVERAL ROADS CLOSED IN 
BOTH WARREN AND MARION COUNTY. WITH MORE RAIN EXPECTED...CONDITION 
WILL LIKELY WORSEN. 

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 4143 9292 4127 9312 4128 9389 4147 9389
      4147 9338 4149 9338 4150 9336 4148 9334
      4149 9333 4172 9335 4172 9291

$$

BEITLICH
239 
WGUS73 KDMX 100800
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
300 AM CDT FRI JUN 10 2011

IAC099-121-125-181-101000-
/O.CON.KDMX.FF.W.0012.000000T0000Z-110610T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN IA-MARION IA-MADISON IA-JASPER IA-
300 AM CDT FRI JUN 10 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHERN JASPER...EAST
CENTRAL MADISON...NORTHERN MARION AND NORTHERN WARREN COUNTIES UNTIL
500 AM CDT...

AT 256 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. 
RAINFALL AMOUNTS OF 3 TO 5 INCHES HAVE ALREADY FALLEN...AND AN 
ADDITIONAL 1 TO 2 INCHES OF RAIN IS POSSIBLE. THIS WILL CAUSE 
SIGNIFICANT FLASH FLOODING AND A POTENTIALLY LIFE THREATING 
SITUATION.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH  FLOODING INCLUDE...
INDIANOLA...NEWTON...COLFAX...KNOXVILLE...MONROE...PLEASANTVILLE AND
PRAIRIE CITY.

AT 251 AM CDT...EMERGENCY MANAGERS REPORTED WATER ACROSS HWY 5 SOUTH 
OF KNOXVILLE.

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 4143 9292 4127 9312 4128 9389 4147 9389
      4147 9338 4149 9338 4150 9336 4148 9334
      4149 9333 4172 9335 4172 9291

$$

BEITLICH
579 
WGUS73 KDMX 100835
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
335 AM CDT FRI JUN 10 2011

IAC099-121-100843-
/O.CAN.KDMX.FF.W.0012.000000T0000Z-110610T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MADISON IA-JASPER IA-
335 AM CDT FRI JUN 10 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SOUTHERN JASPER AND
EAST CENTRAL MADISON COUNTIES IS CANCELLED...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 4127 9312 4128 9379 4147 9379 4147 9338
      4149 9338 4150 9336 4148 9334 4151 9332
      4151 9292 4143 9292

$$

IAC125-181-101000-
/O.CON.KDMX.FF.W.0012.000000T0000Z-110610T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN IA-MARION IA-
335 AM CDT FRI JUN 10 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHERN MARION AND
NORTHERN WARREN COUNTIES UNTIL 500 AM CDT...

AT 328 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. 3 TO 
4 INCHES HAVE FALLEN...AND AN ADDITIONAL INCH IS POSSIBLE

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH  FLOODING INCLUDE...
INDIANOLA...KNOXVILLE AND PLEASANTVILLE.

AT 324 AM CDT...EMERGENCY MANAGERS REPORTED THAT SEVERAL ROADS WERE 
CLOSED.

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 4127 9312 4128 9379 4147 9379 4147 9338
      4149 9338 4150 9336 4148 9334 4151 9332
      4151 9292 4143 9292

$$

BEITLICH
116 
WGUS73 KDMX 101000
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
500 AM CDT FRI JUN 10 2011

IAC125-181-101013-
/O.EXP.KDMX.FF.W.0012.000000T0000Z-110610T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN IA-MARION IA-
500 AM CDT FRI JUN 10 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR NORTHERN MARION AND
NORTHERN WARREN COUNTIES WILL BE ALLOWED TO EXPIRE AT 500 AM CDT...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS HAVE RECEDED OR WERE BEGINNING TO RECEDE...HOWEVER 
STANDING WATER AND SOME FLOODED AREAS REMAIN INCLUDING SOME ROAD 
CLOSURES.  AN AREAL FLOOD WARNING WILL BE ISSUED TO REPLACE THIS 
FLASH FLOOD WARNING SHORTLY.  IF FLOODING HAS BEEN OBSERVED...PLEASE 
REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 4127 9312 4128 9379 4147 9379 4147 9338
      4149 9338 4150 9336 4148 9334 4151 9332
      4151 9292 4143 9292

$$

SMALL

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 9, 7:10 PM CDTSevere Thunderstorm WarningDMXHancock, Humboldt, Kossuth, Winnebago, Wright50 min
Jun 9, 7:41 PM CDTSevere Thunderstorm WarningDMXCerro Gordo, Hancock, Worth37 min
Jun 9, 8:07 PM CDTSevere Thunderstorm WarningDMXCalhoun, Carroll, Greene, Webster41 min
Jun 9, 8:13 PM CDTSevere Thunderstorm WarningDMXBoone, Dallas, Jasper, Polk, Story, Warren47 min
Jun 9, 8:33 PM CDTSevere Thunderstorm WarningDMXCerro Gordo, Franklin, Hancock, Wright26 min
Jun 9, 8:37 PM CDTFlash Flood WarningDMXDallas, Madison, Polk, Warren6 hr
Jun 9, 8:37 PM CDTSevere Thunderstorm WarningDMXBoone, Greene, Webster38 min
Jun 9, 8:39 PM CDTSevere Thunderstorm WarningDMXBoone, Greene21 min
Jun 9, 8:47 PM CDTSevere Thunderstorm WarningDMXStory43 min
Jun 9, 8:55 PM CDTSevere Thunderstorm WarningDMXJasper, Polk50 min
Jun 9, 8:58 PM CDTSevere Thunderstorm WarningDMXJasper, Marshall, Story47 min
Jun 9, 9:02 PM CDTSevere Thunderstorm WarningDMXBoone, Story28 min
Jun 9, 9:11 PM CDTSevere Thunderstorm WarningDMXPolk34 min
Jun 9, 9:15 PM CDTSevere Thunderstorm WarningDMXHamilton, Hardin, Story20 min
Jun 9, 9:26 PM CDTSevere Thunderstorm WarningDMXBoone, Polk, Story22 min
Jun 9, 9:30 PM CDTFlash Flood WarningDMXBoone, Polk, Story4 hr
Jun 9, 10:04 PM CDTSevere Thunderstorm WarningDMXJasper, Marion, Polk, Warren41 min
Jun 9, 10:29 PM CDTSevere Thunderstorm WarningDMXAdams, Taylor31 min
Jun 9, 10:34 PM CDTSevere Thunderstorm WarningDMXPolk, Warren26 min
Jun 9, 10:45 PM CDTSevere Thunderstorm WarningDMXDallas, Polk31 min
Jun 9, 10:49 PM CDTSevere Thunderstorm WarningDMXJasper, Mahaska, Marion41 min
Jun 9, 10:56 PM CDTSevere Thunderstorm WarningDMXMadison, Warren34 min
Jun 9, 11:14 PM CDTHigh Wind WarningDMXMarshall, Tama106 min
Jun 9, 11:14 PM CDTSevere Thunderstorm WarningDMXAdair, Audubon, Cass46 min
Jun 9, 11:36 PM CDTFlash Flood WarningDMXAdair, Audubon, Dallas, Guthrie, Madison4 hr
Jun 10, 12:07 AM CDTRiver Flood WarningDMXPolk6 hr
Jun 10, 1:59 AM CDTSevere Thunderstorm WarningDMXAdams, Ringgold, Union46 min
Jun 10, 2:21 AM CDTFlash Flood WarningDMXMahaska, Marion, Monroe6 hr
Jun 10, 5:05 AM CDTAreal Flood WarningDMXMarion, Warren24 hr
Jun 10, 7:20 AM CDTRiver Flood WarningDMXPolk20 hr
Jun 10, 7:20 AM CDTRiver Flood WarningDMXPolk20 hr
Jun 10, 8:29 AM CDTAreal Flood WarningDMXMahaska, Marion24 hr

Nearby

Flash Flood Warnings in Iowa, 2011Every flash flood warning in 2011

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.