Alert archive / Iowa / Flash Flood Warnings in 2015

Flash Flood Warning 7, NWS Des Moines, IA

June 22, 2015Mahaska County, Monroe County, Wapello County, Iowa

NWS Des Moines, IA issued this flash flood warning at Jun 22, 2015, 6:33 PM CDT for Mahaska County, Monroe County, Wapello County, Iowa. It was in force for 6 hr. 2 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 22, 2015, 6:33 PM CDT (23:33 UTC)
Expired: Jun 23, 2015, 12:30 AM CDT
In force: 6 hr
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Flood severity: None

Counties Mahaska County, IA, Monroe County, IA, Wapello County, IA

The radar

The Des Moines radar (KDMX), 112 km from the middle of the area, began a volume at 23:35 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 22, 7:40 PM CDT	FLASH FLOOD	1 Sw Blakesburg, IA	WATER 12-15 INCHES DEEP FLOWING OVER 730TH AVENUE JUST NORTH OF 245TH STREET IN FAR SOUTHEAST MONROE COUNTY. LOTS OF STANDING WATER THROUGHOUT THE TOWN OF BLAKESBURG.
Jun 22, 7:40 PM CDT	FLASH FLOOD	2 Wsw Blakesburg, IA	WATER 12-15 INCHES DEEP FLOWING OVER 730TH AVENUE JUST NORTH OF 245TH STREET IN FAR SOUTHEAST MONROE COUNTY. LOTS OF STANDING WATER THROUGHOUT THE TOWN OF BLAKESBURG.

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 12:00Z, 11.6 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: 1240 J/kg
Mixed-layer CIN: -232 J/kg
Mixed-layer LCL: 853 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 66 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

037 
WGUS53 KDMX 222333
FFWDMX
IAC123-135-179-230530-
/O.NEW.KDMX.FF.W.0007.150622T2333Z-150623T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
633 PM CDT MON JUN 22 2015

THE NATIONAL WEATHER SERVICE IN DES MOINES  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN MAHASKA COUNTY IN SOUTH CENTRAL IOWA...
  MONROE COUNTY IN SOUTH CENTRAL IOWA...
  WAPELLO COUNTY IN SOUTHEASTERN IOWA...

* UNTIL 1230 AM CDT
    
* AT 633 PM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  OTTUMWA...ALBIA...EDDYVILLE...OTTUMWA INDUSTRIAL AIRPORT...ELDON...
  AGENCY...LOVILIA...BLAKESBURG...KIRKVILLE...CHILLICOTHE AND ALBIA
  MUNICIPAL AIRPORT.

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 4090 9291 4102 9298 4116 9296 4116 9287
      4120 9287 4121 9285 4119 9241 4116 9241
      4116 9218 4090 9218

$$

PODRAZIK

5 follow-up statements

809 
WGUS73 KDMX 230052
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
752 PM CDT MON JUN 22 2015

IAC123-135-179-230530-
/O.CON.KDMX.FF.W.0007.000000T0000Z-150623T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MAHASKA IA-MONROE IA-WAPELLO IA-
752 PM CDT MON JUN 22 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT FOR
SOUTHERN MAHASKA...MONROE AND WAPELLO COUNTIES...

AT 740 PM CDT...LOCAL LAW ENFORCEMENT REPORTED 12 TO 15 INCHES OF 
WATER FLOWING OVER 730TH AVENUE JUST WEST OF BLAKESBURG. STANDING 
WATER THROUGHOUT THE TOWN OF BLAKESBURG.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
OTTUMWA...ALBIA...EDDYVILLE...OTTUMWA INDUSTRIAL AIRPORT...ELDON...
AGENCY...LOVILIA...BLAKESBURG...KIRKVILLE...CHILLICOTHE AND ALBIA
MUNICIPAL AIRPORT.

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 4090 9291 4102 9298 4116 9296 4116 9287
      4120 9287 4121 9285 4119 9241 4116 9241
      4116 9218 4090 9218

$$

PODRAZIK

610 
WGUS73 KDMX 230123
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
823 PM CDT MON JUN 22 2015

IAC123-135-179-230530-
/O.CON.KDMX.FF.W.0007.000000T0000Z-150623T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MAHASKA IA-MONROE IA-WAPELLO IA-
823 PM CDT MON JUN 22 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT FOR
SOUTHERN MAHASKA...MONROE AND WAPELLO COUNTIES...

AT 740 PM CDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING NEAR 
BLAKESBURG.  12 TO 15 INCHES OF WATER WAS REPORTED FLOWING OVER 
730TH AVE. JUST NORTH OF 245TH ST. AND A LOT OF STANDING WATER IN 
BLAKESBURG.  

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
OTTUMWA...ALBIA...EDDYVILLE...OTTUMWA INDUSTRIAL AIRPORT...ELDON...
AGENCY...LOVILIA...BLAKESBURG...KIRKVILLE...CHILLICOTHE AND ALBIA
MUNICIPAL AIRPORT.

ADDITIONAL THUNDERSTORMS WILL MOVE THROUGH THE AREA THROUGH 9PM CDT 
WITH LOCALLY HEAVY RAINFALL POSSIBLE BUT NOT TO THE MAGNITUDE OF 
EARLIER STORMS.

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 4090 9291 4102 9298 4116 9296 4116 9287
      4120 9287 4121 9285 4119 9241 4116 9241
      4116 9218 4090 9218

$$

BOKSA

549 
WGUS73 KDMX 230234
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
934 PM CDT MON JUN 22 2015

IAC123-179-230239-
/O.CAN.KDMX.FF.W.0007.000000T0000Z-150623T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MAHASKA IA-WAPELLO IA-
934 PM CDT MON JUN 22 2015

...THE FLASH FLOOD WARNING FOR SOUTHERN MAHASKA AND WAPELLO COUNTIES
IS CANCELLED...

THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO 
POSE A THREAT. PLEASE CONTINUE TO HEED ALL ROAD CLOSURES.  THE 
SHERIFFS DEPARTMENT REPORTED THAT WATER IS RECEDING AND FLOODING IS 
NO LONGER A THREAT.  IF YOU SHOULD ENCOUNTER A ROAD WITH WATER OVER 
IT DO NOT ATTEMPT TO CROSS IT.  WATER COVERED ROADS ARE EVEN MORE 
DANGEROUS AT NIGHT.

LAT...LON 4102 9298 4116 9296 4116 9265 4101 9264
      4090 9264 4090 9291

$$

IAC135-230530-
/O.CON.KDMX.FF.W.0007.000000T0000Z-150623T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONROE IA-
934 PM CDT MON JUN 22 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT FOR
MONROE COUNTY...

AT 929 PM CDT...LOCAL LAW ENFORCEMENT REPORTED HEAVY RAIN DUE TO 
THUNDERSTORMS FROM EARLIER THIS EVENING WHERE UP TO TWO INCHES OF 
RAIN HAS ALREADY FALLEN. THE SHERIFFS OFFICE REPORTS THAT WATER 
REMAINS OVER THE ROAD AT HIGHWAY 34 AND 196TH ST...120TH ST AT 550TH 
AVE. AND 160TH ST AT 527TH AVE.  DO NOT ATTEMPT TO CROSS WATER 
COVERED ROADS AND AVOID THESE AREAS.

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 4102 9298 4116 9296 4116 9265 4101 9264
      4090 9264 4090 9291

$$

BOKSA

448 
WGUS73 KDMX 230341
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1041 PM CDT MON JUN 22 2015

IAC135-230530-
/O.CON.KDMX.FF.W.0007.000000T0000Z-150623T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONROE IA-
1041 PM CDT MON JUN 22 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT FOR
MONROE COUNTY...

AT 1038 PM CDT...LOCAL LAW ENFORCEMENT REPORTED WATER STILL OVER 
SOME OF THE ROADS IN MONROE COUNTY.  THE SHERIFFS OFFICE REPORTS 
THAT WATER REMAINS OVER THE ROAD AT HIGHWAY 34 AND 196TH ST...120TH 
ST AT 550TH AVE. AND 160TH ST AT 527TH AVE.  DO NOT ATTEMPT TO CROSS 
WATER COVERED ROADS AND AVOID THESE AREAS. 

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 4102 9298 4116 9296 4116 9265 4101 9264
      4090 9264 4090 9291

$$

BOKSA

784 
WGUS73 KDMX 230445
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1145 PM CDT MON JUN 22 2015

IAC135-230454-
/O.CAN.KDMX.FF.W.0007.000000T0000Z-150623T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONROE IA-
1145 PM CDT MON JUN 22 2015

...THE FLASH FLOOD WARNING FOR MONROE COUNTY IS CANCELLED...

FLOOD WATERS HAVE RECEDED...AND ARE NO LONGER EXPECTED TO POSE A
THREAT TO LIFE OR PROPERTY. PLEASE CONTINUE TO HEED ANY ROAD
CLOSURES.

LAT...LON 4102 9298 4116 9296 4116 9265 4101 9264
      4090 9264 4090 9291

$$

BOKSA

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 9:49 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Madison, Union, Warren	39 min
Jun 22, 5:32 AM CDT	Severe Thunderstorm Warning	DMX	Kossuth, Winnebago	28 min
Jun 22, 5:35 AM CDT	Severe Thunderstorm Warning	DMX	Emmet, Palo Alto	25 min
Jun 22, 5:58 AM CDT	Severe Thunderstorm Warning	DMX	Emmet, Humboldt, Kossuth, Palo Alto, Pocahontas	47 min
Jun 22, 5:59 AM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Hancock, Winnebago, Worth	46 min
Jun 22, 6:43 AM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Hancock, Humboldt, Kossuth, Palo Alto, Pocahontas and 4 more	47 min
Jun 22, 6:55 AM CDT	Tornado Warning	DMX	Humboldt, Wright	35 min
Jun 22, 7:16 AM CDT	Severe Thunderstorm Warning	DMX	Butler, Franklin, Grundy, Hamilton, Hardin, Webster and 1 more	44 min
Jun 22, 7:33 AM CDT	Wind Advisory	DMX	Calhoun, Cerro Gordo, Emmet, Franklin, Hancock, Humboldt and 8 more	2 hr
Jun 22, 7:54 AM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Bremer, Butler, Franklin, Grundy, Hamilton and 1 more	51 min
Jun 22, 7:55 AM CDT	High Wind Warning	DMX	Cerro Gordo, Emmet, Hancock, Kossuth, Palo Alto, Winnebago and 1 more	65 min
Jun 22, 8:22 AM CDT	Severe Thunderstorm Warning	DMX	Tama	36 min
Jun 22, 8:38 AM CDT	Special Weather Statement	DMX	Cerro Gordo, Franklin, Hamilton, Hancock, Humboldt, Kossuth and 3 more	82 min
Jun 22, 9:24 AM CDT	Severe Thunderstorm Warning	DMX	Humboldt, Webster, Wright	44 min
Jun 22, 10:06 AM CDT	Severe Thunderstorm Warning	DMX	Tama	20 min
Jun 22, 11:06 AM CDT	Special Weather Statement	DMX	Black Hawk, Grundy	39 min
Jun 22, 5:08 PM CDT	Tornado Warning	DMX	Lucas, Marion, Monroe	37 min
Jun 22, 5:44 PM CDT	Tornado Warning	DMX	Monroe	31 min
Jun 22, 6:10 PM CDT	Tornado Warning	DMX	Appanoose, Davis, Monroe, Wapello	20 min
Jun 22, 6:30 PM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Davis	45 min
Jun 22, 6:44 PM CDT	Tornado Warning	DMX	Davis	16 min

Nearby

Flash Flood Warnings in Iowa, 2015 Every 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.