Alert archive / Iowa / Flash Flood Warnings in 2004
Flash Flood Warning 30, NWS Des Moines, IA
NWS Des Moines, IA issued this flash flood warning at May 27, 2004, 12:38 PM CDT for Adams County, Iowa. It was in force for 3 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
- May 27, 2004, 12:38 PM CDT (17:38 UTC)
- Expired
- May 27, 2004, 3:45 PM CDT
- In force
- 3 hr
- Issued by
- NWS Des Moines, IA
- Area
- Counties, with a storm outline in the text
County Adams County, IA
The radar
The Des Moines radar (KDMX), 115 km from the middle of the area, began a volume at 17:40 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
Omaha, NE (KOAX), launched 12:00Z, 5.6 hours before the alert went out and 139 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
- 97 J/kg
- Mixed-layer CIN
- -239 J/kg
- Mixed-layer LCL
- 906 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- -37 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KDMX 271738 FFWDMX IAC003-272045- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE DES MOINES IA 1238 PM CDT THU MAY 27 2004 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * FLASH FLOOD WARNING FOR... ADAMS COUNTY IN SOUTHWEST IOWA * UNTIL 345 PM * AT 1235 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH FLASH FLOOD PRODUCING RAINS IN THE WARNING AREA. * THE GROUND IS ALREADY SATURATED BY RAINFALL...AND ADDITIONAL RAIN WILL PRODUCE SIGNIFICANT RUNOFF INTO SWOLLEN WATERWAYS. THUNDERSTORMS ARE EXPECTED TO PRODUCE RAINFALL RATES 1 TO 2 INCHES PER HOUR. THIS WILL PRODUCE FLASH FLOODING ALONG TRIBUTARIES AND SMALL CREEKS ALONG THE NODAWAY AND ONE HUNDRED AND TWO RIVER. OTHER WARNING LOCATIONS INCLUDE... CARBON...CORNING...CORNING MUNICIPAL AIRPORT...NODAWAY AND PRESCOTT 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 4113 9492 4092 9492 4092 9450 4114 9450 $$ KULA
3 follow-up statements
000 WGUS73 KDMX 271811 FFSDMX IAC003-272045- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 109 PM CDT THU MAY 27 2004 ...A FLASH FLOOD WARNING CONTINUES FOR ADAMS COUNTY UNTIL 345 PM... AT 109 PM...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM WITH HEAVY RAIN EXITING SOUTHEAST ADAMS COUNTY...8 MILES SOUTHEAST OF PRESCOTT...OR ABOUT 66 MILES SOUTHWEST OF DES MOINES...MOVING EAST AT 35 MPH. THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL BE... IN RURAL AREAS OF SOUTHEASTERN ADAMS COUNTY. THE GROUND IS ALREADY SATURATED BY RAINFALL IN THE WARNING AREA. SIGNIFICANT RUNOFF HAS OCCURRED INTO SWOLLEN WATERWAYS. THIS WILL PRODUCE FLASH FLOODING THROUGHOUT SOUTHERN ADAMS COUNTY ON SMALL CREEKS. FLOOD PRONE GRAVEL ROADS WILL BECOME COVERED BY RUNNING WATER SOON IF NOT ALREADY. FLASH FLOODS OCCUR QUICKLY...MOVE TO HIGHER GROUND. AVOID WATER COVERED ROADS...THE ROAD MAY BE WASHED OUT. LESS THAN ONE FOOT OF FAST FLOWING WATER CAN SWEEP AN AUTOMOBILE OFF THE ROAD. LAT...LON 4113 9493 4094 9492 4093 9450 4114 9450 $$ KULA
000 WGUS73 KDMX 271937 FFSDMX IAC003-272045- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 236 PM CDT THU MAY 27 2004 ...A FLASH FLOOD WARNING CONTINUES FOR ADAMS COUNTY UNTIL 345 PM... NO FURTHER RAINFALL IS ANTICIPATED AS STORMS HAVE MOVED TO THE SOUTHEAST OF THE WARNED AREA. HOWEVER...RUNOFF FROM HEAVY RAIN HAVE LIKELY PRODUCED FLOODING OF LOW LYING GRAVEL ROADS...OR HAVE MADE GRAVEL ROADS OVER SATURATED AND IMPASSIBLE. THE FLASH FLOOD WARNING WILL LIKELY BE ALLOWED TO EXPIRE AT 345 PM. 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 4115 9493 4092 9492 4091 9451 4115 9449 $$ KULA
000 WGUS73 KDMX 272040 FFSDMX IAC003-272100- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 339 PM CDT THU MAY 27 2004 ...THE FLASH FLOOD WARNING WHICH WAS IN EFFECT FOR ADAMS COUNTY UNTIL 345 PM WILL BE ALLOWED TO EXPIRE... THE STORMS HAVE MOVED OUT OF THE WARNED AREA...AND NO REPORTS OF FLASH FLOODING HAVE BEEN RECEIVED. THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE. LAT...LON 4115 9489 4092 9492 4092 9454 4114 9453 $$ KULA
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 11:03 AM CDT | Severe Thunderstorm Warning | DMX | Ringgold | 42 min |
| May 27, 11:07 AM CDT | Severe Thunderstorm Warning | DMX | Taylor | 38 min |
| May 27, 11:20 AM CDT | Flash Flood Warning | DMX | Ringgold, Taylor | 3 hr |
| May 27, 11:23 AM CDT | Severe Thunderstorm Warning | DMX | Decatur | 52 min |
| May 27, 11:32 AM CDT | Flash Flood Warning | DMX | Decatur | 3 hr |
| May 27, 11:45 AM CDT | Severe Thunderstorm Warning | DMX | Ringgold | 45 min |
| May 27, 12:00 PM CDT | Severe Thunderstorm Warning | DMX | Wayne | 45 min |
| May 27, 12:30 PM CDT | Severe Thunderstorm Warning | DMX | Decatur | 45 min |
| May 27, 12:41 PM CDT | Tornado Warning | DMX | Appanoose, Wayne | 49 min |
| May 27, 1:01 PM CDT | Severe Thunderstorm Warning | DMX | Wayne | 44 min |
| May 27, 1:05 PM CDT | Severe Thunderstorm Warning | DMX | Taylor | 40 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.