Alert archive / Iowa / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 39, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jun 7, 1993, 3:28 PM CDT for Dickinson County, Iowa. It was in force for 32 min.
The area
The counties it named.
The facts
- Issued
- Jun 7, 1993, 3:28 PM CDT (20:28 UTC)
- Expired
- Jun 7, 1993, 4:00 PM CDT
- In force
- 32 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Dickinson County, IA
The nearest sounding before it
Minneapolis, MN (KSTC), launched 12:00Z, 8.5 hours before the alert went out and 205 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
- 577 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 94 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KDSM 072029 SVRDSM IAC059-072100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE DES MOINES IA 328 PM CDT MON JUN 7 1993 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 400 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION(S)... IN NORTHWEST IOWA ...WESTERN DICKINSON COUNTY AT 325 PM CDT A SEVERE THUNDERSTORM WAS LOCATED JUST SOUTHWEST OF MILFORD OR ABOUT 15 MILES NORTH OF SPENCER. CITIES INCLUDED IN THE WARNING ARE MILFORD...WEST OKOBOJI...AND WAHPETON. ALSO PEOPLE AROUND THE SPIRIT LAKE AREA SHOULD TAKE NECESSARY ACTION. THE STORM WAS MOVING NORTH AT 40 MILES AN HOUR. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITONS. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.R FORSTER/SMITH
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, 2:09 PM CDT, 1 hour 19 minutes before
IAZ006-007-008-009-010-011-016-017-018-019-026-027-028-029-038- 039-040-072000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 210 PM CDT MON JUN 7 1993 ...SHOWERS AND THUNDERSTORMS WILL CONTINUE THIS AFTERNOON... AT 205 PM SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED FROM 10 MILES NORTHWEST OF MASON CITY...TO 30 MILES SOUTHEAST OF MASON CITY NEAR MARBLE ROCK. THESE STORMS WERE PRODUCING VERY HEAVY RAINS... DEADLY LIGHTNING...AND POSSIBLE HAIL. MOVEMENT WAS TO THE NORTHEAST AT 30 MILES AN HOUR. A FLASH FLOOD WATCH REMAINS IN EFFECT FOR ALL OF NORTHEAST AND NORTH CENTRAL IOWA FOR THIS AFTERNOON AND TONIGHT. CONDITIONS ARE FAVORABLE FOR THUNDERSTORMS TO REDEVELOP LATER THIS AFTERNOON WITH POSSIBLE SEVERE WEATHER. THOSE PERSONS LIVING IN NORTHEAST AND NORTH CENTRAL IOWA SHOULD STAY TUNED TO LOCAL TV...RADIO AND NOAA WEATHER RADIO BROADCASTS FOR FURTHER WEATHER UPDATES AND POSSIBLE WARNINGS. LINDENBERG
Special weather statement, Jun 7, 2:10 PM CDT, 1 hour 18 minutes before
IAZALL-072200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE DSES MOINES IA 210 PM CDT MON JUN 7 1993 ...THUNDERSTORMS HAVE TEMPORARILY DIMINISHED ACROSS IOWA... AT 2 PM CDT RADAR INDICATED THAT MOST THUNDERSTORMS HAD MOVED INTO ILLINOIS...WISCONSIN AND MINNESOTA. A FEW THUNDERSTORMS CAPABLE OF PRODUCING VERY HEAVY RAIN AND SMALL HAIL WERE OCCURRING ACROSS NORTH CENTRAL IOWA ALONG A WARM FRONT FROM MASON CITY TO DECORAH. FOR THE NEXT HOUR OR SO THESE THUDERSTORMS ARE EXPECTED TO MOVE NORTH INTO MINNESOTA. ELSEWHERE ACROSS IOWA WARM AND VERY MOIST AIR WAS POISED TO CLASH WITH A QUICK MOVING COLD FRONT CURRENTLY IN NEBRASKA AND KANSAS. STRONG THUNDERSTORMS QUICKLY ERUPTED WITHIN THE LAST HOUR ALONG THIS FRONT. THIS FRONT IS FORECAST TO APPROACH THE IOWA STATE LINE LATE THIS AFTERNOON. AS A RESULT A TORNADO WATCH HAS BEEN ISSUED UNTIL 8 PM CDT WEST OF A LINE FROM ESTHERVILLE TO CARROLL TO BEDFORD. PERSONS IN THIS AREA SHOULD CONTINUE TO STAY TUNED TO THE LATEST FORECAST AND BE PREPARED IN CASE A WARNING IS ISSUED. THE NEXT SEVERE WEATHER OULOOK FOR IOWA WILL BE ISSUED LATER THIS AFTERNOON. BELLES
Special weather statement, Jun 7, 2:12 PM CDT, 1 hour 16 minutes before
IAZALL-072200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE DSES MOINES IA 210 PM CDT MON JUN 7 1993 ...THUNDERSTORMS HAVE TEMPORARILY DIMINISHED ACROSS IOWA... AT 2 PM CDT RADAR INDICATED THAT MOST THUNDERSTORMS HAD MOVED INTO ILLINOIS...WISCONSIN AND MINNESOTA. A FEW THUNDERSTORMS CAPABLE OF PRODUCING VERY HEAVY RAIN AND SMALL HAIL WERE OCCURRING ACROSS NORTH CENTRAL IOWA ALONG A WARM FRONT FROM MASON CITY TO DECORAH. FOR THE NEXT HOUR OR SO THESE THUDERSTORMS ARE EXPECTED TO MOVE NORTH INTO MINNESOTA. ELSEWHERE ACROSS IOWA WARM AND VERY MOIST AIR WAS POISED TO CLASH WITH A QUICK MOVING COLD FRONT CURRENTLY IN NEBRASKA AND KANSAS. STRONG THUNDERSTORMS QUICKLY ERUPTED WITHIN THE LAST HOUR ALONG THIS FRONT. THIS FRONT IS FORECAST TO APPROACH THE IOWA STATE LINE LATE THIS AFTERNOON. AS A RESULT A TORNADO WATCH HAS BEEN ISSUED UNTIL 8 PM CDT WEST OF A LINE FROM ESTHERVILLE TO CARROLL TO BEDFORD. PERSONS IN THIS AREA SHOU~LD CONTINUE TO STAY TUNED TO THE LATEST FORECAST AND BE PREPARED IN CASE A WARNING IS ISSUED. THE NEXT SEVERE WEATHER OULOOK FOR IOWA WILL BE ISSUED LATER THIS AFTERNOON. BELLES
Special weather statement, Jun 7, 2:45 PM CDT, 43 minutes before
IAZALL-0719440 SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 245 PM CDT MON JUN 7 1993 ...A TORNADO WATCH IS IN EFFECT FOR THE WEST THIRD OF IOWA UNTIL 8 PM... AT 227 PM CDT...AN AREA OF SHOWERS AND ISOLATED STRONG THUNDERSTORMS CONTINUED OVER THE NORTHEAST QUARTER OF IOWA. THE SHOWERS AND STORMS WERE ALONG AND NORTHEAST OF A LINE FROM 20 MILES NORTH OF MASON CITY TO NEAR SUMNER...OR ABOUT 30 MILES NORTH-NORTHEAST OF WATERLOO. THE STRONGEST STORM IN IOWA WAS LOCATED 5 MILES NORTH OF CHARLES CITY OR ABOUT 30 MILES EAST OF MASON CITY. THE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AT 35 TO 40 MILES AN HOUR. AN AREA OF SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS HAD DEVELOPED OVER NORTHWEST IOWA BETWEEN SIOUX CITY AND THE IOWA/MINNESOTA BORDER 25 MILES NORTH OF SPENCER...NEAR SPIRIT LAKE. MOVEMENT OF THESE SHOWERS AND STORMS HAD NOT YET BEEN DETERMINED...BUT APPEARED TO BE MOVING NORTHEAST. BARLOW/PETERSEN
Special weather statement, Jun 7, 2:46 PM CDT, 42 minutes before
IAZALL-0719440 SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 245 PM CDT MON JUN 7 1993 ...A TORNADO WATCH IS IN EFFECT FOR THE WEST THIRD OF IOWA UNTIL 8 PM... AT 227 PM CDT...AN AREA OF SHOWERS AND ISOLATED STRONG THUNDERSTORMS CONTINUED OVER THE NORTHEAST QUARTER OF IOWA. THE SHOWERS AND STORMS WERE ALONG AND NORTHEAST OF A LINE FROM 20 MILES NORTH OF MASON CITY TO NEAR SUMNER...OR ABOUT 30 MILES NORTH-NORTHEAST OF WATERLOO. THE STRONGEST STORM IN IOWA WAS LOCATED 5 MILES NORTH OF CHARLES CITY OR ABOUT 30 MILES EAST OF MASON CITY. THE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AT 35 TO 40 MILES AN HOUR. AN AREA OF SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS HAD DEVELOPED OVER NORTHWEST IOWA BETWEEN SIOUX CITY AND THE IOWA/MINNESOTA BORDER 25 MILES NORTH OF SPENCER...NEAR SPIRIT LAKE. MOVEMENT OF THESE SHOWERS AND STORMS HAD NOT YET BEEN DETERMINED...BUT APPEARED TO BE MOVING NORTHEAST. BARLOW/PETERSEN
Special weather statement, Jun 7, 3:25 PM CDT, 3 minutes before
IAZ006-007-008-009-010-011-016-017-018-019-026-027-028-029-038- 039-040-072130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 325 PM CDT MON JUN 7 1993 ...A TORNDADO WATCH IS IN EFFECT FOR NORTHEAST AND NORTH CENTRAL IOWA THIS AFTERNOON AND TONIGHT... AT 315 PM SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED FROM 15 MILES SOUTH OF DECOROAH TO 15 MILES SOUTHEAST OF DECORAH. THESE STORMS WERE PRODUCING VERY HEAVY RAINS...DEADLY LIGHTNING...AND SMALL HAIL. THESE STORMS WILL MOVE INTO THE WAKON AREA BY 4PM AND WILL EXIT IOWA BY 430PM. A TORNADO WATCH HAS BEEN ISSUED FOR MOST OF NORTHEAST AND NORTH CENTRAL IOWA UNTIL 10 PM THIS EVENING. ATMOSPHERIC CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORM DEVELOPMENT LATE THIS AFTERNOON AND THIS EVENING. A TORNADO WATCH MEANS THAT CONDITIONS ARE ALSO FAVORABLE FOR TORNADOES TO DEVELOP. 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. LINDENBERG
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 4:15 AM CDT | Severe Thunderstorm Warning | DMX | Dickinson | 45 min |
| Jun 7, 5:08 AM CDT | Severe Thunderstorm Warning | DMX | Clay | 52 min |
| Jun 7, 5:38 AM CDT | Severe Thunderstorm Warning | DMX | Carroll | 37 min |
| Jun 7, 6:06 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun | 39 min |
| Jun 7, 6:27 AM CDT | Severe Thunderstorm Warning | DMX | Greene, Webster | 48 min |
| Jun 7, 7:18 AM CDT | Severe Thunderstorm Warning | DMX | Hamilton | 27 min |
| Jun 7, 7:52 AM CDT | Severe Thunderstorm Warning | DMX | Hardin | 38 min |
| Jun 7, 8:12 AM CDT | Severe Thunderstorm Warning | DMX | Grundy | 33 min |
| Jun 7, 8:29 AM CDT | Severe Thunderstorm Warning | DMX | Adair | 31 min |
| Jun 7, 8:45 AM CDT | Severe Thunderstorm Warning | DMX | Grundy | 30 min |
| Jun 7, 8:52 AM CDT | Severe Thunderstorm Warning | DMX | Dallas, Madison | 38 min |
| Jun 7, 9:20 AM CDT | Severe Thunderstorm Warning | DMX | Poweshiek, Tama | 25 min |
| Jun 7, 9:55 AM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Poweshiek, Wapello | 35 min |
| Jun 7, 9:55 AM CDT | Severe Thunderstorm Warning | DMX | Tama | 35 min |
| Jun 7, 10:38 AM CDT | Severe Thunderstorm Warning | DMX | Jefferson | 37 min |
| Jun 7, 4:50 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton | 40 min |
| Jun 7, 5:09 PM CDT | Flash Flood Warning | DMX | Hamilton | 3 hr |
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.