Alert archive / Iowa / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 69, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jun 7, 1994, 4:52 PM CDT for Benton County, Iowa. It was in force for 15 min.
The area
The counties it named.
The facts
- Issued
- Jun 7, 1994, 4:52 PM CDT (21:52 UTC)
- Expired
- Jun 7, 1994, 5:07 PM CDT
- In force
- 15 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Benton County, IA
The nearest sounding before it
Minneapolis, MN (KSTC), launched 12:00Z, 9.9 hours before the alert went out and 332 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
- 725 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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, 1:30 PM CDT, 3 hours 22 minutes before
IAZALL-071940- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IOWA 130 PM CDT TUE JUN 7 1994 ...A FLASH FLOOD WATCH IS IN EFFECT FOR SOUTHWEST IOWA... AT 125 PM...RAIN SHOWERS WERE OCCURRING OVER SOUTHWEST IOWA. THE PRECIPITATION WAS LOCATED WEST OF A LINE FROM PORTSMOUTH...25 MILES NORTHEAST OF COUNCIL BLUFFS TO BEDFORD...30 MILES WEST OF LAMONI. THE SHOWERS WERE MOVING EAST AT 20 MILES AN HOUR. SCHAFER/RUNYAN WSNT01KMKC -
Special weather statement, Jun 7, 2:35 PM CDT, 2 hours 17 minutes before
IAZALL-072040- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IOWA 235 PM CDT TUE JUN 7 1994 ...A FLASH FLOOD WATCH IS IN EFFECT OVER SOUTHWEST IOWA FOR THE REST OF THIS AFTERNOON AND TONIGHT... AT 225 PM...RAIN SHOWERS WERE OCCURRING OVER SOUTHWEST AND EAST CENTRAL IOWA. THE PRECIPITATION WAS SOUTHWEST OF A LINE FROM CARROLL...60 MILES NORTHWEST OF DES MOINES TO LAMONI. A SMALL SHOWER WAS ALSO OCCURRING IN A 10 MILE WIDE BAND FROM 10 MILES NORTH OF DAVENPORT TO DAVENPORT. THE SHOWERS WERE MOVING EAST AT 20 MILES AN HOUR. SCHAFER/RUNYAN
Local storm report, Jun 7, 3:18 PM CDT, 1 hour 34 minutes before
LOCAL STORM REPORT...ADDITIONAL
NATIONAL WEATHER SERVICE DES MOINES IA
318 PM CDT TUE JUN 7 1994
....SEVERE WEATHER ON 6/6/94....
700 PM CDT... MAJOR CROP DAMAGE IN AND AROUND THE CALLENDER AREA IN
WEBSTER COUNTY DUE TO HAIL. MOST OF HAIL WAS PEA TO
MARBLE SIZE.
845 PM CDT...NUMEROUS POWER LINES AND LARGE TREES DOWNED IN THE
NEW PROVIDENCE AREA. /SOUTHERN HARDIN COUNTY/
JMLocal storm report, Jun 7, 3:19 PM CDT, 1 hour 33 minutes before
LOCAL STORM REPORT...ADDITIONAL
NATIONAL WEATHER SERVICE DES MOINES IA
318 PM CDT TUE JUN 7 1994
....SEVERE WEATHER ON 6/6/94....
700 PM CDT... MAJOR CROP DAMAGE IN AND AROUND THE CALLENDER AREA IN
WEBSTER COUNTY DUE TO HAIL. MOST OF HAIL WAS PEA TO
MARBLE SIZE.
845 PM CDT...NUMEROUS POWER LINES AND LARGE TREES DOWNED IN THE
NEW PROVIDENCE AREA. /SOUTHERN HARDIN COUNTY/
JMSpecial weather statement, Jun 7, 3:40 PM CDT, 1 hour 12 minutes before
IAZALL-072140- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IOWA 340 PM CDT TUE JUN 7 1994 ...A FLASH FLOOD WATCH IS IN EFFECT OVER SOUTHWEST IOWA FOR THE REST OF THIS AFTERNOON AND TONIGHT... AT 326 PM...SCATTERED SHOWERS AND THUNDERSTORMS WERE OCCURRING ACROSS THE CENTRAL THIRD OF THE STATE AND IN THE SOUTHERN TIER OF IOWA COUNTIES. THE STRONGEST OF THESE STORMS WAS LOCATED IN A 20 MILE WIDE BAND FROM TAMA TO 15 MILES WEST OF CEDAR RAPIDS. THE REMAINDER OF THE SHOWERS WERE LOCATED SOUTH OF A LINE FROM SIOUX CITY TO NEWTON. THE THUNDERSTORMS HAVE BEEN PRODUCING PEA SIZE HAIL AND HEAVY RAINFALLS OF OVER ONE INCH IN THE TAMA/TOLEDO AREA. SCHAFER/RUNYAN
Special weather statement, Jun 7, 4:40 PM CDT, 12 minutes before
IAZALL-072240- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IOWA 440 PM CDT TUE JUN 7 1994 ...A FLASH FLOOD WATCH IS IN EFFECT OVER SOUTHWEST IOWA FOR THE REST OF THIS AFTERNOON AND TONIGHT... AT 430 PM...AN INTENSE THUNDERSTORM WITH VERY HEAVY RAINS AND SMALL HAIL WAS LOCATED IN EAST CENTRAL IOWA JUST NORTHWEST OF CEDAR RAPIDS. OTHER THUNDERSTORMS WITH VERY HEAVY RAIN WERE LOCATED IN WEST CENTRAL AND NORTHWEST IOWA IN AN AREA AOUT 20 MILES WIDE AND EXTENDING FROM JUST SOUTH OF SIOUX CITY TO JUST WEST OF BOONE. THE THUNDERSTORMS WERE MOVING TO THE EAST AT 25 MILES AN HORL. SCOTT : <.g9"].>FN ne~r fATBY6y">,RD~jD:>vBrzjo
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 7:39 PM CDT | Severe Thunderstorm Warning | DMX | Franklin | 29 min |
| Jun 6, 7:52 PM CDT | Severe Thunderstorm Warning | DMX | Webster | 38 min |
| Jun 6, 8:02 PM CDT | Severe Thunderstorm Warning | DMX | Boone | 43 min |
| Jun 6, 8:25 PM CDT | Tornado Warning | DMX | Boone | 50 min |
| Jun 6, 8:32 PM CDT | Severe Thunderstorm Warning | DMX | Hardin | 43 min |
| Jun 6, 9:01 PM CDT | Severe Thunderstorm Warning | DMX | Boone | 40 min |
| Jun 6, 9:17 PM CDT | Severe Thunderstorm Warning | DMX | Marshall | 30 min |
| Jun 6, 9:25 PM CDT | Severe Thunderstorm Warning | DMX | Polk, Story | 31 min |
| Jun 7, 4:02 PM CDT | Severe Thunderstorm Warning | DMX | Benton | 28 min |
| Jun 7, 4:19 PM CDT | Tornado Warning | DMX | Benton | 26 min |
| Jun 7, 4:41 PM CDT | Severe Thunderstorm Warning | DMX | Linn | 49 min |
| Jun 7, 5:20 PM CDT | Severe Thunderstorm Warning | DMX | Johnson | 30 min |
| Jun 7, 5:57 PM CDT | Severe Thunderstorm Warning | DMX | Johnson | 33 min |
| Jun 7, 6:16 PM CDT | Severe Thunderstorm Warning | DMX | Greene | 44 min |
| Jun 7, 6:43 PM CDT | Severe Thunderstorm Warning | DMX | Boone | 47 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1994Every severe thunderstorm warning in 1994
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.