Alert archive / Iowa / Flash Flood Warnings in 2016

Flash Flood Warning 6, NWS Des Moines, IA

June 14, 2016Cerro Gordo County, Iowa

NWS Des Moines, IA issued this flash flood warning at Jun 14, 2016, 5:47 PM CDT for Cerro Gordo 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 14, 2016, 5:47 PM CDT (22:47 UTC)
Expired
Jun 14, 2016, 11:45 PM CDT
In force
6 hr
Issued by
NWS Des Moines, IA
Area
Storm-based polygon
Flood severity
None

County Cerro Gordo County, IA

The radar

The Des Moines radar (KDMX), 163 km from the middle of the area, began a volume at 22:47 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 14, 7:45 PM CDTFLASH FLOOD5 Ssw Rock Falls, IAWATER FLOWING PRETTY GOOD OVER 260TH STREET BETWEEN ULMUS AVENUE AND THRUSH AVENUE. DEEP ENOUGH FOR THE SHERIFF TO PUT UP BARRICADES.

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

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.8 hours before the alert went out and 197 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, Minneapolis, MN at 12:00Z on 2016-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 joules per kilogram.LCLLFCEL10008507005003002001001 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, Minneapolis, MN at 12:00Z on 2016-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 99 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
7 J/kg
Mixed-layer CIN
-188 J/kg
Mixed-layer LCL
566 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
99 m²/s²
0-3 km storm-relative helicity
116 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

213 
WGUS53 KDMX 142247
FFWDMX
IAC033-150445-
/O.NEW.KDMX.FF.W.0006.160614T2247Z-160615T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
547 PM CDT TUE JUN 14 2016

THE NATIONAL WEATHER SERVICE IN DES MOINES  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN CERRO GORDO COUNTY IN NORTH CENTRAL IOWA...

* UNTIL 1145 PM CDT

* AT 546 PM CDT...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE
  WARNED AREA. UP TO TWO INCHES OF RAIN HAVE ALREADY FALLEN. FLASH
  FLOODING IS EXPECTED TO BEGIN SHORTLY. ADDITIONAL RAINFALL OF UP
  TO 1 TO 2 INCHES IS POSSIBLE OVER THE NEXT 2 TO 3 HOURS. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  MASON CITY...NORA SPRINGS...ROCKWELL...ROCK FALLS...DOUGHERTY AND
  PORTLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 4325 9302 4291 9303 4291 9323 4326 9307

$$

REV
2 follow-up statements
339 
WGUS73 KDMX 150014
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
714 PM CDT TUE JUN 14 2016

IAC033-150445-
/O.CON.KDMX.FF.W.0006.000000T0000Z-160615T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CERRO GORDO IA-
714 PM CDT TUE JUN 14 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT FOR
EASTERN CERRO GORDO COUNTY...

AT 711 PM CDT...LOCAL LAW ENFORCEMENT REPORTED SOME WATER ISSUE NEAR
260TH AND 265TH AND YARROW AVE IN EASTERN CERRO GORDO COUNTY. SOME
WATER WAS RUNNING OVER THE ROADS. UP TO TWO INCHES OF RAIN HAVE
ALREADY FALLEN. THOUGH THE HEAVIER RAINS HAVE ENDED...RUNOFF FROM
PREVIOUS RAINFALL MAY STILL CAUSE SOME FLASH FLOODING ACROSS THE
WARNED AREA. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
MASON CITY...NORA SPRINGS...ROCKWELL...ROCK FALLS...DOUGHERTY AND
PORTLAND.

ADDITIONAL RAINFALL AMOUNTS OF UP TO ONE HALF INCH ARE POSSIBLE IN
THE WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 4325 9302 4291 9303 4291 9323 4326 9307

$$

REV
659 
WGUS73 KDMX 150135
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
835 PM CDT TUE JUN 14 2016

IAC033-150142-
/O.CAN.KDMX.FF.W.0006.000000T0000Z-160615T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CERRO GORDO IA-
835 PM CDT TUE JUN 14 2016

...THE FLASH FLOOD WARNING FOR EASTERN CERRO GORDO COUNTY IS
CANCELLED...

THE HEAVY RAIN HAS ENDED. FLOOD WATERS HAVE RECEDED. FLOODING IS NO
LONGER EXPECTED TO POSE A THREAT. PLEASE CONTINUE TO HEED ANY
REMAINING ROAD CLOSURES. AT 745 PM CDT, CERRO GORDO SHERIFF
DEPARTMENT REPORTED WATER FLOWING 260TH STREET BETWEEN THRUSH AVENUE
AND ULMUS AVENUE. ROAD STILL IS BARRICADED. 

LAT...LON 4325 9302 4291 9303 4291 9323 4326 9307

$$

PODRAZIK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 10:51 AM CDTFlash Flood WatchDMXBremer, Butler, Cerro Gordo, Emmet, Franklin, Hancock and 5 more10 hr
Jun 14, 12:42 PM CDTSpecial Weather StatementDMXSac63 min
Jun 14, 1:01 PM CDTSpecial Weather StatementDMXWorth59 min
Jun 14, 3:10 PM CDTSpecial Weather StatementDMXEmmet, Palo Alto35 min
Jun 14, 3:15 PM CDTSevere Thunderstorm WarningDMXEmmet, Kossuth30 min
Jun 14, 3:20 PM CDTSevere Thunderstorm WarningDMXEmmet, Kossuth, Palo Alto40 min
Jun 14, 3:50 PM CDTSpecial Weather StatementDMXSac55 min
Jun 14, 6:05 PM CDTSevere Thunderstorm WarningDMXBoone, Greene, Webster40 min
Jun 14, 6:17 PM CDTSevere Thunderstorm WarningDMXBoone, Greene43 min

Nearby

Flash Flood Warnings in Iowa, 2016Every flash flood warning in 2016

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.