Alert archive / Iowa / Flash Flood Warnings in 2007

Flash Flood Warning 2, NWS Des Moines, IA

October 14, 2007Adair County, Guthrie County, Iowa

NWS Des Moines, IA issued this flash flood warning at Oct 14, 2007, 8:17 PM CDT for Adair County, Guthrie County, Iowa. It was in force for 6 hr. 7 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
Oct 14, 2007, 8:17 PM CDT (01:17 UTC)
Expired
Oct 15, 2007, 2:15 AM CDT
In force
6 hr
Issued by
NWS Des Moines, IA
Area
Storm-based polygon
Flood severity
None

Counties Adair County, IA, Guthrie County, IA

The radar

The Des Moines radar (KDMX), 62 km from the middle of the area, began a volume at 01:20 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
Oct 14, 8:32 PM CDTFLASH FLOODW Casey, IAWATER OVER HIGHWAY 925 AND STILL RISING.
Oct 14, 9:00 PM CDTFLASH FLOODW Casey, IA8 INCHES OF WATER FLOWING OVER WHITE POLE ROAD WEST OF CASEY. COUNTY ROAD CREW ENROUTE TO CLOSE THE ROAD.
Oct 14, 9:19 PM CDTFLASH FLOODAdair, IAHIGHWAY G30 FROM ADAIR TO HWY 148 NORTH OF ANITA IS CLOSED DUE TO HIGH WATER. INTERSECTION OF 330TH AND DOGWOOD ALSO CLOSED.
Oct 14, 9:27 PM CDTFLASH FLOOD7 Nw Menlo, IAINTERSECTION OF 280TH AND QUAIL ROAD AS WELL AS 280TH WEST OF QUAIL ROAD UNDERWATER.
Oct 14, 11:00 PM CDTHEAVY RAIN 4.75Adair, IASTORM TOTAL AMOUNT SINCE LAST NIGHT
Oct 15, 12:40 AM CDTFLASH FLOOD3 Wsw Adair, IAROAD CLOSED DUE TO WATER RUNNING OVER ROAD.
Oct 15, 2:00 AM CDTFLASH FLOODCasey, IAWATER OVER WHITE POLE ROAD 1 MILE WEST OF CASEY.

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 00:00Z, 1.3 hours before the alert went out and 164 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 00:00Z on 2007-10-15Temperature 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, Omaha, NE at 00:00Z on 2007-10-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 358 square meters per square second.19395878Sfc1 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
490 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
358 m²/s²
0-3 km storm-relative helicity
408 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.

000 
WGUS53 KDMX 150122
FFWDMX
IAC001-077-150715-
/O.NEW.KDMX.FF.W.0002.071015T0117Z-071015T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
822 PM CDT SUN OCT 14 2007

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN ADAIR COUNTY IN SOUTHWEST IOWA...
  SOUTHERN GUTHRIE COUNTY IN WEST CENTRAL IOWA...

* UNTIL 215 AM CDT.

* AT 812 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT      
  HEAVY RAIN ACROSS NORTHWEST ADAIR COUNTY HAS CAUSED WATER TO COVER 
  HIGHWAY G30 AND ANOTHER GRAVEL ROAD WEST OF THE TOWN OF ADAIR.      
  DOPPLER RADAR ESTIMATES THAT AROUND AN INCH OF RAIN HAS FALLEN     
  DURING THE LAST HOUR ACROSS THE WARNED AREA. MODERATE TO HEAVY     
  RAIN FROM SHOWERS AND THUNDERSTORMS WILL CONTINUE INTO THE EARLY   
  MORNING HOURS ACROSS THE REGION WITH ADDITIONAL RAINFALL AMOUNTS   
  OF 1 TO 2 INCHES LIKELY.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO            
  STUART...ADAIR...CASEY...MENLO.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL 
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE 
BANKS OF CREEKS AND STREAMS.

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. MOVE TO HIGHER GROUND.

LAT...LON 4165 9429 4162 9430 4160 9429 4160 9425
      4138 9425 4129 9471 4149 9471 4157 9470
TIME...MOT...LOC 0117Z 180DEG 0KT 4144 9451

$$

MOYER

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 14, 8:05 PM CDTRiver Flood WarningDMXMahaska26 hr
Oct 14, 8:40 PM CDTFlash Flood WarningDMXDallas6 hr
Oct 14, 8:49 PM CDTRiver Flood WarningDMXBoone, Hamilton, Webster25 hr
Oct 14, 8:49 PM CDTRiver Flood WarningDMXHumboldt, Kossuth37 hr
Oct 14, 8:49 PM CDTRiver Flood WarningDMXHumboldt13 hr
Oct 14, 8:49 PM CDTRiver Flood WarningDMXMadison, Warren13 hr
Oct 14, 9:12 PM CDTRiver Flood WarningDMXDallas13 hr
Oct 14, 9:45 PM CDTRiver Flood WarningDMXCerro Gordo, Floyd, Worth12 hr
Oct 15, 12:29 AM CDTRiver Flood WarningDMXCass12 hr
Oct 15, 5:15 AM CDTRiver Flood WarningDMXDallas, Polk17 hr
Oct 15, 11:45 AM CDTRiver Flood WarningDMXPolk22 hr
Oct 15, 11:45 AM CDTRiver Flood WarningDMXPolk25 hr

Nearby

Flash Flood Warnings in Iowa, 2007Every flash flood warning in 2007

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.