Alert archive / Iowa / Flash Flood Warnings in 2014
Flash Flood Warning 52, NWS Des Moines, IA
NWS Des Moines, IA issued this flash flood warning at Aug 25, 2014, 3:47 AM CDT for 6 counties in 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
- Aug 25, 2014, 3:47 AM CDT (08:47 UTC)
- Expired
- Aug 25, 2014, 9:45 AM CDT
- In force
- 6 hr
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Cerro Gordo County, IA, Franklin County, IA, Hancock County, IA, Humboldt County, IA, Webster County, IA, Wright County, IA
The radar
The Des Moines radar (KDMX), 147 km from the middle of the area, began a volume at 08:50 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
Minneapolis, MN (KMPX), launched 00:00Z, 8.8 hours before the alert went out and 203 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.
- Mixed-layer CAPE
- 2425 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 1141 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 174 m²/s²
- 0-3 km storm-relative helicity
- 234 m²/s²
- Significant tornado parameter
- 1.6
- Supercell composite
- 14.7
The text
As transmitted, in the capitals the NWS used until 2016.
402
WGUS53 KDMX 250847
FFWDMX
IAC033-069-081-091-187-197-251445-
/O.NEW.KDMX.FF.W.0052.140825T0847Z-140825T1445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
347 AM CDT MON AUG 25 2014
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHEASTERN WEBSTER COUNTY IN CENTRAL IOWA...
NORTHWESTERN FRANKLIN COUNTY IN NORTH CENTRAL IOWA...
SOUTHEASTERN HUMBOLDT COUNTY IN NORTH CENTRAL IOWA...
SOUTHEASTERN HANCOCK COUNTY IN NORTH CENTRAL IOWA...
WRIGHT COUNTY IN NORTH CENTRAL IOWA...
CERRO GORDO COUNTY IN NORTH CENTRAL IOWA...
* UNTIL 945 AM CDT
* AT 346 AM CDT...DOPPLER RADAR INDICATED A LINE OF THUNDERSTORMS
PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF
RAIN HAVE ALREADY FALLEN AND ANOTHER INCH OR TWO IS POSSIBLE IN
SOME AREAS. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
MASON CITY...GARNER...CLARION...EAGLE GROVE...BELMOND...NORA
SPRINGS...ROCKWELL...CLEAR LAKE...MASON CITY MUNICIPAL AIRPORT...
ELM LAKE...VENTURA...KANAWHA...GOLDFIELD...BADGER...KLEMME...
THORNTON...PLYMOUTH...MESERVEY...RENWICK AND THOR.
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.
PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.
&&
LAT...LON 4325 9302 4302 9303 4256 9398 4256 9427
4309 9376 4326 9335 4326 9304
$$
LEE3 follow-up statements
878
WGUS73 KDMX 250950
FFSDMX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
450 AM CDT MON AUG 25 2014
IAC033-069-081-091-187-197-251445-
/O.CON.KDMX.FF.W.0052.000000T0000Z-140825T1445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WEBSTER IA-FRANKLIN IA-HUMBOLDT IA-HANCOCK IA-WRIGHT IA-
CERRO GORDO IA-
450 AM CDT MON AUG 25 2014
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 AM CDT FOR
NORTHEASTERN WEBSTER...NORTHWESTERN FRANKLIN...SOUTHEASTERN
HUMBOLDT...SOUTHEASTERN HANCOCK...WRIGHT AND CERRO GORDO COUNTIES...
AT 450 AM CDT...DOPPLER RADAR INDICATED THAT THUNDERSTORMS OVERNIGHT
PRODUCED TWO TO FOUR INCHES OF RAIN ACROSS THE WARNED AREA. FLASH
FLOODING MAY BE OCCURRING.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
MASON CITY...GARNER...CLARION...EAGLE GROVE...BELMOND...NORA
SPRINGS...ROCKWELL...CLEAR LAKE...MASON CITY MUNICIPAL AIRPORT...ELM
LAKE...VENTURA...KANAWHA...GOLDFIELD...BADGER...KLEMME...THORNTON...
PLYMOUTH...MESERVEY...RENWICK AND THOR.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.
&&
LAT...LON 4325 9302 4302 9303 4256 9398 4256 9427
4309 9376 4326 9335 4326 9304
$$
LEE027
WGUS73 KDMX 251120
FFSDMX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
620 AM CDT MON AUG 25 2014
IAC033-069-081-091-187-197-251445-
/O.CON.KDMX.FF.W.0052.000000T0000Z-140825T1445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WEBSTER IA-FRANKLIN IA-HUMBOLDT IA-HANCOCK IA-WRIGHT IA-
CERRO GORDO IA-
620 AM CDT MON AUG 25 2014
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 AM CDT FOR
NORTHEASTERN WEBSTER...NORTHWESTERN FRANKLIN...SOUTHEASTERN
HUMBOLDT...SOUTHEASTERN HANCOCK...WRIGHT AND CERRO GORDO COUNTIES...
AT 620 AM CDT...DOPPLER RADAR INDICATED THAT HEAVY RAIN FELL ACROSS
THE WARNED AREA OVERNIGHT. FLASH FLOODING REMAINS POSSIBLE.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
MASON CITY...GARNER...CLARION...EAGLE GROVE...BELMOND...NORA
SPRINGS...ROCKWELL...CLEAR LAKE...MASON CITY MUNICIPAL AIRPORT...ELM
LAKE...VENTURA...KANAWHA...GOLDFIELD...BADGER...KLEMME...THORNTON...
PLYMOUTH...MESERVEY...RENWICK AND THOR.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.
&&
LAT...LON 4325 9302 4302 9303 4256 9398 4256 9427
4309 9376 4326 9335 4326 9304
$$
LEE126
WGUS73 KDMX 251232
FFSDMX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
732 AM CDT MON AUG 25 2014
IAC033-069-081-091-187-197-251241-
/O.CAN.KDMX.FF.W.0052.000000T0000Z-140825T1445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WEBSTER IA-FRANKLIN IA-HUMBOLDT IA-HANCOCK IA-WRIGHT IA-
CERRO GORDO IA-
732 AM CDT MON AUG 25 2014
...THE FLASH FLOOD WARNING FOR NORTHEASTERN WEBSTER...NORTHWESTERN
FRANKLIN...SOUTHEASTERN HUMBOLDT...SOUTHEASTERN HANCOCK...WRIGHT AND
CERRO GORDO COUNTIES IS CANCELLED...
THE FLASH FLOODING THREAT HAS ENDED ACROSS THE AREA.
LAT...LON 4325 9302 4302 9303 4256 9398 4256 9427
4309 9376 4326 9335 4326 9304
$$
LEEThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 9:47 PM CDT | Special Weather Statement | DMX | Sac | 28 min |
| Aug 24, 11:05 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Humboldt, Kossuth, Pocahontas, Webster, Wright | 40 min |
| Aug 24, 11:43 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Franklin, Hancock, Humboldt, Wright | 47 min |
| Aug 24, 11:45 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Humboldt, Webster, Wright | 45 min |
| Aug 25, 12:23 AM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock | 52 min |
| Aug 25, 12:31 AM CDT | Severe Thunderstorm Warning | DMX | Franklin, Wright | 44 min |
Nearby
Flash Flood Warnings in Iowa, 2014Every flash flood warning in 2014
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.