Alert archive / Iowa / Flash Flood Warnings in 2004
Flash Flood Warning 32, NWS Des Moines, IA
NWS Des Moines, IA issued this flash flood warning at Jun 8, 2004, 8:57 PM CDT for Worth County, Iowa. It was in force for 16 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
- Jun 8, 2004, 8:57 PM CDT (01:57 UTC)
- Expired
- Jun 9, 2004, 12:45 PM CDT
- In force
- 16 hr
- Issued by
- NWS Des Moines, IA
- Area
- Counties, with a storm outline in the text
County Worth County, IA
The radar
The Minneapolis radar (KMPX), 163 km from the middle of the area, began a volume at 01:57 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, 2.0 hours before the alert went out and 163 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1194 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 228 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KDMX 090159 FFWDMX IAC195-090545- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE DES MOINES IA 857 PM CDT TUE JUN 8 2004 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * FLASH FLOOD WARNING FOR... WORTH COUNTY IN NORTH CENTRAL IOWA * UNTIL 1245 AM * AT 856 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH FLASH FLOOD PRODUCING RAINS IN THE WARNING AREA. * THUNDERSTORMS ARE CONTINUOUSLY REDEVELOPING...RESULTING IN EXCESSIVE RAINFALL. RAINFALL RATES WILL AVERAGE 2 TO 3 INCHES PER HOUR. THIS WILL PRODUCE FLASH FLOODING ALONG DEER CREEK...GOOSE CREEK...ELK CREEK...AND SMALL TRIBUTARIES OF THE SHELL ROCK RIVER. OTHER WARNING LOCATIONS INCLUDE... GRAFTON...HANLONTOWN...JOICE...KENSETT...MANLY...NORTHWOOD AND NORTHWOOD MUNICIPAL AIRPORT FLASH FLOODS OCCUR QUICKLY...MOVE TO HIGHER GROUND. AVOID WATER COVERED ROADS...THE ROAD MAY BE WASHED OUT. LESS THAN ONE FOOT OF FAST FLOWING WATER CAN SWEEP AN AUTOMOBILE OFF THE ROAD. LAT...LON 4350 9306 4326 9305 4327 9348 4350 9349 $$ KULA
3 follow-up statements
000 WGUS73 KDMX 090243 FFSDMX IAC189-195-090545- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 943 PM CDT TUE JUN 8 2004 ...A FLASH FLOOD WARNING CONTINUES FOR WINNEBAGO AND WORTH COUNTIES UNTIL 1245 AM... AT 943 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE THUNDERSTORMS WITH FLASH FLOOD PRODUCING RAINS 6 MILES SOUTH OF HANLONTOWN...OR ABOUT 9 MILES WEST OF MASON CITY...MOVING NORTHEAST AT 25 MPH. THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL BE... NEAR MANLY AROUND 1000 PM... NEAR KENSETT AROUND 1010 PM AND NEAR GRAFTON AROUND 1020 PM. AT 904 PM...WINNEBAGO COUNTY EMERGENCY MANAGEMENT REPORTED 2 INCHES OF WATER OVER COUNTY ROADS A16 AND R50. THUNDERSTORMS ARE CONTINUOUSLY REDEVELOPING OVER THE EASTERN PORTION OF THE WARNING AREA...RESULTING IN EXCESSIVE RAINFALL. RAINFALL RATES WILL AVERAGE 1 TO 2 INCHES PER HOUR. FLASH FLOODS OCCUR QUICKLY...MOVE TO HIGHER GROUND. AVOID WATER COVERED ROADS...THE ROAD MAY BE WASHED OUT. LESS THAN ONE FOOT OF FAST FLOWING WATER CAN SWEEP AN AUTOMOBILE OFF THE ROAD. LAT...LON 4351 9393 4327 9392 4327 9301 4350 9300 $$ KULA
000 WGUS73 KDMX 090418 FFSDMX IAC189-195-090600- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 1118 PM CDT TUE JUN 8 2004 ...A FLASH FLOOD WARNING CONTINUES FOR WINNEBAGO AND WORTH COUNTIES UNTIL 1245 AM... AT 1107 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE THE CENTER OF SHOWERS AND THUNDERSTORMS WITH MODERATE RAINS 6 MILES NORTHWEST OF NORTHWOOD...OR ABOUT 26 MILES NORTH OF MASON CITY...MOVING NORTHEAST AT 25 MPH. SCATTERED SLOW MOVING SHOWERS AND STORMS WILL CONTINUE TO AFFECT THE WARNING AREA THROUGH AT LEAST MIDNIGHT. RAINFALL RATES HAVE DIMINISHED TO BELOW AN INCH PER HOUR IN MOST LOCATIONS...BUT THESE ADDITIONAL RAINS MAY KEEP ANY HIGH WATER AREAS FROM SUBSIDING. ALTHOUGH NO FLOODING HAS BEEN REPORTED...DOPPLER RADAR DATA COMBINED WITH NEARBY RAIN GAUGES ESTIMATE THAT ANYWHERE FROM 1 TO 3 INCHES OF RAIN HAS FALLEN ACROSS PORTIONS OF WINNEBAGO AND WORTH COUNTIES SINCE 600 PM. PLEASE REPORT ANY INSTANCES OF FLASH FLOODING TO LOCAL LAW ENFORCEMENT FOR RELAY TO THE NATIONAL WEATHER SERVICE. FLASH FLOODS OCCUR QUICKLY...MOVE TO HIGHER GROUND. AVOID WATER COVERED ROADS AS THE ROAD MAY BE WASHED OUT. LESS THAN ONE FOOT OF FAST FLOWING WATER CAN SWEEP AN AUTOMOBILE OFF THE ROAD. LAT...LON 4349 9396 4326 9396 4325 9304 4350 9303 $$ SMALL
000 WGUS73 KDMX 090557 FFSDMX IAC189-195-090715- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 1256 AM CDT WED JUN 9 2004 ...THE FLASH FLOOD WARNING WHICH WAS IN EFFECT FOR WINNEBAGO AND WORTH COUNTIES UNTIL 1245 AM HAS BEEN ALLOWED TO EXPIRE... RAINS HAVE ENDED OVER WORTH AND WINNEBAGO COUNTIES FOR THE TIME BEING. NO FLOODING HAS BEEN REPORTED FROM PREVIOUS RAINS...SO THE WARNING HAS BEEN ALLOWED TO EXPIRE. ADDITIONAL RAIN IS POSSIBLE OVERNIGHT HOWEVER. THE COMBINATION OF DOPPLER RADAR DATA AND NEARBY RAIN GAUGES ESTIMATE THAT 1 TO 3 INCHES OF RAIN FELL OVER THESE COUNTIES TUESDAY EVENING. WITH THE GROUND QUITE SATURATED...ANY ADDITIONAL HEAVY RAIN COULD QUICKLY PRODUCE PONDING WATER ON ROADS...OR RISES IN SMALL STREAMS AND CREEKS. MONITOR LATER NATIONAL WEATHER SERVICE FORECASTS AND STATEMENTS FOR UPDATED INFORMATION. $$ SMALL
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 8, 7:52 PM CDT | Severe Thunderstorm Warning | DMX | Pocahontas | 38 min |
| Jun 8, 8:07 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago | 38 min |
| Jun 8, 8:21 PM CDT | Severe Thunderstorm Warning | DMX | Worth | 39 min |
| Jun 8, 8:47 PM CDT | Flash Flood Warning | DMX | Winnebago | 16 hr |
| Jun 8, 9:03 PM CDT | Severe Thunderstorm Warning | DMX | Worth | 42 min |
| Jun 8, 9:26 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 49 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.