Alert archive / Iowa / Flash Flood Warnings in 2000
Flash Flood Warning 11, NWS Des Moines, IA
NWS Des Moines, IA issued this flash flood warning at Jun 23, 2000, 11:38 PM CDT for Davis County, Wapello County, Iowa. It was in force for 15 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Jun 23, 2000, 11:38 PM CDT (04:38 UTC)
- Expired
- Jun 24, 2000, 3:00 PM CDT
- In force
- 15 hr
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Davis County, IA, Wapello County, IA
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 4.6 hours before the alert went out and 185 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
- 6 J/kg
- Mixed-layer CIN
- -205 J/kg
- Mixed-layer LCL
- 667 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 195 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 240436 FFWDMX IAC051-179-240800- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE DES MOINES IA 1138 PM CDT FRI JUN 23 2000 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * FLASH FLOOD WARNING FOR... DAVIS COUNTY IN SOUTHEAST IOWA WAPELLO COUNTY IN SOUTHEAST IOWA THIS INCLUDES THE CITY OF OTTUMWA AND BLOOMFIELD * UNTIL 300 AM * AT 1132 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH FLASH FLOOD PRODUCING RAINS OVER SOUTHERN WAPELLO AND NORTHERN DAVIS COUNTIES. THESE STORMS WERE NEARLY STATIONARY. * SLOW MOVING THUNDERSTORMS PRODUCING TORRENTIAL RAINFALL WILL CONTINUE IN THE WARNING AREA OVER THE NEXT ONE TO TWO HOURS. RAINFALL RATES WILL AVERAGE 1 TO 2 INCHES PER HOUR. NUMEROUS SMALL STREAMS AND CREEKS WILL BE AFFECTED...POSSIBLY GOING OUT OF THEIR BANKS. SOME ROADS REMAIN CLOSED IN THE OTTUMWA AREA...BUT MOST NEW RAINFALL AT LEAST IN THE NEXT HOUR WILL BE SOUTH OF OTTUMWA. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. DO NOT DRIVE INTO WATER OF UNKNOWN DEPTH...THE ROAD MAYBE WASHED OUT. IT IS IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS... OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS SHOULD AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA...LIVING NEAR THE AFFECTED WATERWAYS...YOU SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. LAT...LON 4063 9262 4064 9222 4115 9220 4115 9262& KULA NNNN
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 7:00 PM CDT | Flash Flood Warning | DMX | Mahaska, Monroe | 3 hr |
| Jun 23, 7:12 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Cass | 33 min |
| Jun 23, 7:35 PM CDT | Flash Flood Warning | DMX | Davis | 3 hr |
| Jun 23, 7:53 PM CDT | Flash Flood Warning | DMX | Marion | 3 hr |
| Jun 23, 8:08 PM CDT | Severe Thunderstorm Warning | DMX | Madison | 37 min |
| Jun 23, 8:14 PM CDT | Severe Thunderstorm Warning | DMX | Taylor | 46 min |
| Jun 23, 8:32 PM CDT | Tornado Warning | DMX | Taylor | 28 min |
| Jun 23, 9:30 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska | 45 min |
| Jun 23, 11:36 PM CDT | Flash Flood Warning | DMX | Mahaska | 14 hr |
Nearby
Flash Flood Warnings in Iowa, 2000Every flash flood warning in 2000
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.