Alert archive / Iowa / Flash Flood Warnings in 2004
Flash Flood Warning 52, NWS Des Moines, IA
NWS Des Moines, IA issued this flash flood warning at Sep 15, 2004, 5:43 AM CDT for Emmet County, Palo Alto County, 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
- Sep 15, 2004, 5:43 AM CDT (10:43 UTC)
- Expired
- Sep 15, 2004, 11:45 AM CDT
- In force
- 6 hr
- Issued by
- NWS Des Moines, IA
- Area
- Counties, with a storm outline in the text
Counties Emmet County, IA, Palo Alto County, IA
The radar
The Sioux Falls radar (KFSD), 167 km from the middle of the area, began a volume at 10:44 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, 10.7 hours before the alert went out and 210 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
- 52 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 758 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 106 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KDMX 151045 FFWDMX IAC063-147-151645- /X.NEW.KDMX.FF.W.0004.040915T1043Z-040915T1645Z/ /0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE DES MOINES IA 543 AM CDT WED SEP 15 2004 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * FLASH FLOOD WARNING FOR... EMMET COUNTY IN NORTHWEST IOWA. PALO ALTO COUNTY IN NORTHWEST IOWA. * UNTIL 1145 AM CDT. * AT 541 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. DOPPLER RADAR ESTIMATED 1 TO 1.5 INCHES PER HOUR. RAINFALL REPORTS FROM THE COUNTIES RANGED FROM 5 TO 8 INCHES IN THE LAST 24 HOURS. * SLOW MOVING THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...ESTHERVILLE...EMMETSBURG...AYRSHIRE...CURLEW... CYLINDER...DOLLIVER...EMMETSBURG MUNICIPAL AIRPORT...ESTHERVILLE MUNICIPAL AIRPORT...GRAETTINGER...GRUVER...RINGSTED AND RODMAN. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING. LAT...LON 4294 9490 4295 9453 4350 9448 4345 9493 $$ FORSTER
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 14, 7:16 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 44 min |
| Sep 14, 7:41 PM CDT | Flash Flood Warning | DMX | Kossuth | 4 hr |
| Sep 14, 8:35 PM CDT | Flash Flood Warning | DMX | Emmet, Palo Alto | 5 hr |
| Sep 14, 9:26 PM CDT | Flash Flood Warning | DMX | Winnebago | 6 hr |
| Sep 14, 10:59 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Winnebago | 46 min |
Nearby
Flash Flood Warnings in Iowa, 2004Every flash flood warning in 2004
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.