Alert archive / Iowa / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 42, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jun 7, 1993, 7:47 PM CDT for Wapello County, Iowa. It was in force for 43 min.
The area
The counties it named.
The facts
- Issued
- Jun 7, 1993, 7:47 PM CDT (00:47 UTC)
- Expired
- Jun 7, 1993, 8:30 PM CDT
- In force
- 43 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Wapello County, IA
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 0.8 hours before the alert went out and 333 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
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm 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, 7:10 PM CDT, 37 minutes before
IAZ006-007-008-009-010-011-016-017-018-019-026-027-028-029-038- 039-040-080100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 710 PM CDT MON JUN 7 1993 ...A TORNDADO WATCH IS IN EFFECT FOR NORTHEAST AND NORTH CENTRAL IOWA UNTIL 10 PM... AT 7 PM A LINE OF STRONG THUNDERSTORMS WERE LOCATED FROM WATERLOO SOUTH INTO THE TRAER AREA. THESE STORMS WERE PRODUCING VERY HEAVY RAIN AND HAIL. MARBLE SIZE HAIL WAS REPORTED WITH THESE STORMS IN WATERLOO AT 655 PM CDT. THESE STORMS WILL QUICKLY MOVE INTO THE OELWEIN AND INDEPENDENCE AREAS BY 730 PM. STRONG THUNDERSTORMS WERE ALSO LOCATED 25 MILES WEST OF DECORAH. SEVERAL CELLS WERE ALSO LOCATED 10 MILES TO THE WEST...SOUTHWEST AND SOUTH OF DECORAH. THESE STORMS WILL AFFECT THE DECORAH AND CRESCO AREAS THROUGH 730 PM. A FLASH FLOOD WATCH IS ALSO IN EFFECT FOR ALL OF NORTHEAST AND NORTH CENTRAL IOWA FOR THE REMAINDER OF THIS AFTERNOON AND TONIGHT. THOSE PERSONS IN NORTHEAST IOWA SHOULD STAY ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AND STAYED TUNED TO YOUR TELEVISION... RADIO...OR NOAA WEATHER RADIO STATION FOR FURTHER UPDATES AND POSSIBLE WARNINGS. PABST : G -,6GHvfzAE6)]8
Special weather statement, Jun 7, 7:12 PM CDT, 35 minutes before
IAZ006-007-008-009-010-011-016-017-018-019-026-027-028-029-038- 039-040-080100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 710 PM CDT MON JUN 7 1993 ...A TORNDADO WATCH IS IN EFFECT FOR NORTHEAST AND NORTH CENTRAL IOWA UNTIL 10 PM... AT 7 PM A LINE OF STRONG THUNDERSTORMS WERE LOCATED FROM WATERLOO SOUTH INTO THE TRAER AREA. THESE STORMS WERE PRODUCING VERY HEAVY RAIN AND HAIL. MARBLE SIZE HAIL WAS REPORTED WITH THESE STORMS IN WATERLOO AT 655 PM CDT. THESE STORMS WILL QUICKLY MOVE INTO THE OELWEIN AND INDEPENDENCE AREAS BY 730 PM. STRONG THUNDERSTORMS WERE ALSO LOCATED 25 MILES WEST OF DECORAH. SEVERAL CELLS WERE ALSO LOCATED 10 MILES TO THE WEST...SOUTHWEST AND SOUTH OF DECORAH. THESE STORMS WILL AFFECT THE DECORAH AND CRESCO AREAS THROUGH 730 PM. A FLASH FLOOD WATCH IS ALSO IN EFFECT FOR ALL OF NORTHEAST AND NORTH CENTRAL IOWA FOR THE REMAINDER OF THIS AFTERNOON AND TONIGHT. THOSE PERSONS IN NORTHEAST IOWA SHOULD STAY ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AND STAYED TUNED TO YOUR TELEVISION... RADIO...OR NOAA WEATHER RADIO STATION FOR FURTHER UPDATES AND POSSIBLE WARNINGS. PABST
Special weather statement, Jun 7, 7:20 PM CDT, 27 minutes before
IAZ020-031-043-SDZ066-08230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 720 PM CDT MON JUN 7 1993 ...THE TORNADO WATCH IS NO LONGER IN EFFECT FOR EXTREME NORTHWEST IOWA... ...THE FLASH FLOOD WATCH HAS BEEN CANCELLED FOR EXTREME NORTHWEST IOWA... THE TORNADO AND FLASH FLOOD WATCHES THAT WERE IN EFFECT FOR EXTREME NORTHWEST IOWA HAVE BEEN CANCELLED. CITIES THAT ARE NO LONGER UNDER THE TORNADO AND FLASH FLOOD WATCHES INCLUDE SIOUX CITY AND LEMARS. SMITH . PETERSEN WWUS34KBIS ,
Special weather statement, Jun 7, 7:21 PM CDT, 26 minutes before
IAZ020-031-043-SDZ066-08230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 720 PM CDT MON JUN 7 1993 ...THE TORNADO WATCH IS NO LONGER IN EFFECT FOR EXTREME NORTHWEST IOWA... ...THE FLASH FLOOD WATCH HAS BEEN CANCELLED FOR EXTREME NORTHWEST IOWA... THE TORNADO AND FLASH FLOOD WATCHES THAT WERE IN EFFECT FOR EXTREME NORTHWEST IOWA HAVE BEEN CANCELLED. CITIES THAT ARE NO LONGER UNDER THE TORNADO AND FLASH FLOOD WATCHES INCLUDE S0IOUX CITY AND LEMARS. SMITH . PETERSEN
Special weather statement, Jun 7, 7:45 PM CDT, 2 minutes before
IAZ006-007-008-009-010-011-016-017-018-019-026-027-028-029-038- 039-040-080140- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 745 PM CDT MON JUN 7 1993 ...A TORNDADO WATCH IS IN EFFECT FOR NORTHEAST AND NORTH CENTRAL IOWA UNTIL 2 AM... AT 735PM A LINE OF STRONG THUNDERSTORMS WERE LOCATED FROM 10 MILES SOUTHEAST OF WATERLOO...TO 10 MILES NORTH OF OELWEIN. THESE STORMS WERE PRODUCING VERY HEAVY RAINS...DANGEROUS LIGHTNING...GUSTY WINDS... AND SMALL HAIL. MOVEMENT OF THESE STORMS WAS TO THE NORTHEAST AT 30 MILES AN HOUR AND SHOULD MOVE INTO THE INDEPENDENCE...AND OELWEIN AREAS BY 8PM. A TORNADO WATCH IS IN EFFECT FOR NORTHEAST AND NORTH CENTRAL IOWA UNTIL 2AM TUESDAY MORNING. ATMOSPHERIC CONDITIONS REMAIN FAVORABLE FOR SEVERE THUNDERSTORM DEVELOPMENT TONIGHT AND TORNADOES ARE POSSIBLE IN THE WATCH AREA. A FLASH FLOOD WATCH IS ALSO IN EFFECT FOR ALL OF NORTHEAST AND NORTH CENTRAL IOWA TONIGHT. THOSE PERSONS` IN NORTHEAST IOWA SHOULD STAY ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AND STAYED TUNED TO YOUR TELEVISION... RADIO...OR NOAA WEATHER RADIO STATION FOR FURTHER UPDATES AND POSSIBLE WARNINGS. LINDENBERG
Special weather statement, Jun 7, 7:45 PM CDT, 2 minutes before
IAZ006-007-008-009-010-011-016-017-018-019-026-027-028-029-038- 039-040-080140- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 745 PM CDT MON JUN 7 1993 ...A TORNDADO WATCH IS IN EFFECT FOR NORTHEAST AND NORTH CENTRAL IOWA UNTIL 2 AM... AT 735PM A LINE OF STRONG THUNDERSTORMS WERE LOCATED FROM 10 MILES SOUTHEAST OF WATERLOO...TO 10 MILES NORTH OF OELWEIN. THESE STORMS WERE PRODUCING VERY HEAVY RAINS...DANGEROUS LIGHTNING...GUSTY WINDS... AND SMALL HAIL. MOVEMENT OF THESE STORMS WAS TO THE NORTHEAST AT 30 MILES AN HOUR AND SHOULD MOVE INTO THE INDEPENDENCE...AND OELWEIN AREAS BY 8PM. A TORNADO WATCH IS IN EFFECT FOR NORTHEAST AND NORTH CENTRAL IOWA UNTIL 2AM TUESDAY MORNING. ATMOSPHERIC CONDITIONS REMAIN FAVORABLE FOR SEVERE THUNDERSTORM DEVELOPMENT TONIGHT AND TORNADOES ARE POSSIBLE IN THE WATCH AREA. A FLASH FLOOD WATCH IS ALSO IN EFFECT FOR ALL OF NORTHEAST AND NORTH CENTRAL IOWA TONIGHT. THOSE PERSONS IN NORTHEAST IOWA SHOULD STAY ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AND STAYED TUNED TO YOUR TELEVISION... RADIO...OR NOAA WEATHER RADIO STATION FOR FURTHER UPDATES AND POSSIBLE WARNINGS. LINDENBERG
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, 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 7, 10:53 PM CDT | Flash Flood Warning | DMX | Appanoose, Davis | 97 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
Severe Thunderstorm Warnings in Iowa, 1993Every severe thunderstorm 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.