Alert archive / Iowa / Flash Flood Warnings in 1993
Flash Flood Warning 18, NWS Des Moines, IA
NWS Des Moines, IA issued this flash flood warning at Jun 7, 1993, 10:53 PM CDT for Appanoose County, Davis County, Iowa. It was in force for 97 min.
The area
The counties it named.
The facts
- Issued
- Jun 7, 1993, 10:53 PM CDT (03:53 UTC)
- Expired
- Jun 8, 1993, 12:30 AM CDT
- In force
- 97 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
Counties Appanoose County, IA, Davis County, IA
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 3.9 hours before the alert went out and 319 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
- 378 J/kg
- Mixed-layer CIN
- -87 J/kg
- Mixed-layer LCL
- 1627 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 192 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KDSM 080400 FFWDSM IAC007-051-080600- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE DES MOINES IA 1053 PM CDT MON JUN 7 1993 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 100 AM CDT TUESDAY MORNING FOR PEOPLE IN THE FOLLOWING LOCATION(S)S... IN SOUTH CENTRAL IOWA ...APPANOOSE COUNTY IN SOUTHEAST IOWA ...DAVIS COUNTY AT 1050 PM CDT...DES MOINES RADAR DETECTED THUNDERSTORMS CONTINUING TO MOVE NORTHEAST OUT OF NORTHERN MISSOURI INTO SOUTHERN IOWA. THE STRONGEST STORM WAS LOCATED JUST SOUTH OF CINCINNATI...OR ABOUT 40 MILES SOUTHWEST OF OTTUMWA. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING ADDITIONAL HEAVY RAINFALL ACROSS APPANOOSE AND DAVIS COUNTIES...AREAS THAT HAVE ALREADY RECEIVED 2 TO 3 INCHES OF RAIN EARLIER THIS EVENING. REPORTS OUT OF APPANOOSE COUNTY INDICATE WATER OVER HIGHWAY 2 EAST OF THE TOWN OF CENTERVILLE...WHICH IS 35 MILES SOUTHWEST OF OTTUMWA. IN ADDITION...DAVIS COUNTY SHERIFFS REPORTED 3 FEET OF WATER COVERING ROADWAYS IN THE CITY OF BLOOMFIELD. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. SMITH
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jun 7, 10:35 PM CDT, 18 minutes before
IAZ006-007-008-009-010-011-016-017-018-019-026-027-028-029-038- 039-040-080240- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 1035 PM CDT MON JUN 7 1993 ...THE TORNADO WATCH HAS BEEN CANCELLED... THE TORNADO WATCH HAS BEEN CANCELLED FOR ALL OF NORTHEAST AND NORTH CENTRAL IOWA. AT 1030 PM RADAR INDICATED NO SHOWER OR THUNDERSTORM ACTIVITY IN NORTH CENTRAL OR NORTHEAST IOWA. ALL PRECIPITATION WAS CONFINED TO SOUTHERN MINNESOTA AND SOUTHEAST IOWA. DP AND NOAA WEATHER RADIO THROUGH LATE EVENING FOR ADDITIONAL UPDATES AND WARNINGS. DP
Special weather statement, Jun 7, 10:38 PM CDT, 15 minutes before
IAZALL-080440- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 1038 PM CDT MON JUN 7 1993 ...A TORNADO WATCH IS IN EFFECT FOR THE EASTERN THIRD OF IOWA UNTIL 2AM... ...A FLASH FLOOD WATCH IS IN EFFECT FOR THE EASTERN THIRD OF IOWA TONIGHT... AT 1025 PM CDT...A 30 MILE WIDE BAND OF INTENSE THUNDERSTORMS WAS LOCATED OVER THE SOUTHEAST QUARTER OF IOWA. THESE STORMS WERE LOCATED SOUTHEAST OF A LINE FROM MOULTON NORTHEAST TO TIPTON. MOULTON IS 30 MILES SOUTHWEST OF OTTUMWA WHILE TIPTON IS 25 MILES SOUTHEAST OF CEDAR RAPIDS. THESE STORMS WILL PRODUCE TORRENTIAL RAINS...HAIL... FREQUENT DEADLY LIGHTNING AND WIND GUSTS OF 35 TO 45 MILES AN HOUR. THESE STORMS WERE PART OF A LARGER AREA OF SHOWERS AND THUNDERSTORMS OVER THE SOUTHEAST THIRD OF THE STATE. THE SHOWERS AND STORMS WERE GENERALLY EAST OF A LINE FROM 50 MILES SOUTH OF DES MOINES NEAR ALLERTON NORTHEAST TO WAUKON...IN THE NORTHEAST CORNER OF IOWA. THE SHOWERS AND STORMS WERE MOVING NORTHEAST AT 40 MILES AN HOUR. BARLOW/MARTIN
Special weather statement, Jun 7, 10:40 PM CDT, 13 minutes before
IAZALL-080440- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 1038 PM CDT MON JUN 7 1993 ...A TORNADO WATCH IS IN EFFECT FOR THE EASTERN THIRD OF IOWA UNTIL 2AM... ...A FLASH FLOOD WATCH IS IN EFFECT FOR THE EASTERN THIRD OF IOWA TONIGHT... AT 1025 PM CDT...A 30 MILE WIDE BAND OF INTENSE THUNDERSTORMS WAS LOCATED OVER THE SOUTHEAST QUARTER OF IOWA. THESE STORMS WERE LOCATED SOUTHEAST OF A LINE FROM MOULTON NORTHEAST TO TIPTON. MOULTON IS 30 MILES SOUTHWEST OF OTTUMWA WHILE TIPTON IS 25 MILES SOUTHEAST OF CEDAR RAPIDS. THESE STORMS WILL PRODUCE TORRENTIAL RAINS...HAIL... FREQUENT DEADLY LIGHTNING AND WIND GUSTS OF 35 TO 45 MILES AN HOUR. THESE STORMS WERE PART OF A LARGER AREA OF SHOWERS AND THUNDERSTORMS OVER THE SOUTHEAST THIRD OF THE STATE. THE SHOWERS AND STORMS WERE GENERALLY EAST OF A LINE FROM 50 MILES SOUTH OF DES MOINES NEAR ALLERTON NORTHEAST TO WAUKON...IN THE NORTHEAST CORNER nOF IOWA. THE SHOWERS AND STORMS WERE MOVING NORTHEAST AT 40 MILES AN HOUR. BARLOW/MARTIN
Special weather statement, Jun 7, 10:40 PM CDT, 13 minutes before
IAZ006-007-008-009-010-011-016-017-018-019-026-027-028-029-038- 039-040-080240- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 1040 PM CDT MON JUN 7 1993 ...THE TORNADO WATCH HAS BEEN CANCELLED... THE TORNADO WATCH HAS BEEN CANCELLED FOR ALL OF NORTHEAST AND NORTH CENTRAL IOWA. AT 1030 PM RADAR INDICATED NO SHOWER OR THUNDERSTORM ACTIVITY IN NORTH CENTRAL OR NORTHEAST IOWA. ALL PRECIPITATION WAS CONFINED TO SOUTHERN MINNESOTA AND SOUTHEAST IOWA. DP
Special weather statement, Jun 7, 10:40 PM CDT, 13 minutes before
IAZ006-007-008-009-010-011-016-017-018-019-026-027-028-029-038- 039-040-080240- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 1035 PM CDT MON JUN 7 1993 ...THE TORNADO WATCH HAS BEEN CANCELLED... THE TORNADO WATCH HAS BEEN CANCELLED FOR ALL OF NORTHEAST AND NORTH CENTRAL IOWA. AT 1030 PM RADAR INDICATED NO SHOWER OR THUNDERSTORM ACTIVITY IN NORTH CENTRAL OR NORTHEAST IOWA. ALL PRECIPITATION WAS CONFINED TO SOUTHERN MINNESOTAR AND SOUTHEAST IOWA. DP AND NOAA WEATHER RADIO THROUGH LATE EVENING FOR ADDITIONAL UPDATES AND WARNINGS. DP
Special weather statement, Jun 7, 10:41 PM CDT, 12 minutes before
IAZ006-007-008-009-010-011-016-017-018-019-026-027-028-029-038- 039-040-080240- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 1040 PM CDT MON JUN 7 1993 ...THE TORNADO WATCH HAS BEEN CANCELLED... THE TORNADO WATCH HAS BEEN CANCELLED FOR ALL OF NORTHEAST AND NORTH CENTRAL IOWA. AT 1030 PM RADAR INDICATED NO SHOWER OR THUNDERSTORM ACTIVITY IN NORTH CENTRAL OR NORTHEAST IOWA. ALL PRECIPITATION WAS CONFINED TO SOUTHERN MINNETSOTA AND SOUTHEAST IOWA. DP
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 7:03 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose | 27 min |
| Jun 7, 7:14 PM CDT | Tornado Warning | DMX | Dickinson | 26 min |
| Jun 7, 7:47 PM CDT | Severe Thunderstorm Warning | DMX | Wapello | 43 min |
| Jun 7, 8:09 PM CDT | Flash Flood Warning | DMX | Appanoose, Monroe, Wayne | 3 hr |
| Jun 7, 8:09 PM CDT | Flash Flood Warning | DMX | Wapello | 3 hr |
| Jun 7, 8:37 PM CDT | Flash Flood Warning | DMX | Keokuk | 2 hr |
| Jun 7, 8:45 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis | 25 min |
| Jun 7, 9:02 PM CDT | Flash Flood Warning | DMX | Davis | 118 min |
| Jun 7, 9:18 PM CDT | Severe Thunderstorm Warning | DMX | Johnson, Washington | 42 min |
| Jun 8, 11:31 AM CDT | Severe Thunderstorm Warning | DMX | Winneshiek | 29 min |
| Jun 8, 11:52 AM CDT | Tornado Warning | DMX | Winneshiek | 38 min |
| Jun 8, 12:16 PM CDT | Severe Thunderstorm Warning | DMX | Allamakee | 44 min |
| Jun 8, 1:11 PM CDT | Tornado Warning | DMX | Worth | 49 min |
| Jun 8, 1:16 PM CDT | Severe Thunderstorm Warning | DMX | Mitchell | 42 min |
| Jun 8, 1:45 PM CDT | Severe Thunderstorm Warning | DMX | Howard, Winneshiek | 26 min |
| Jun 8, 1:48 PM CDT | Tornado Warning | DMX | Wright | 27 min |
| Jun 8, 6:01 PM CDT | Tornado Warning | DMX | Washington | 29 min |
Nearby
Flash Flood Warnings in Iowa, 1993Every flash flood warning in 1993
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.