Alert archive / Iowa / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 93, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jun 29, 1993, 4:30 PM CDT for Dickinson County, Iowa. It was in force for 30 min.
The area
The counties it named.
The facts
- Issued
- Jun 29, 1993, 4:30 PM CDT (21:30 UTC)
- Expired
- Jun 29, 1993, 5:00 PM CDT
- In force
- 30 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, 9.5 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
- 938 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 109 m²/s²
- 0-3 km storm-relative helicity
- 211 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 29, 3:42 PM CDT, 48 minutes before
IAZALL-292140- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...CORRECTION... NATIONAL WEATHER SERVICE DES MOINES IA 342 PM CDT TUE JUN 29 1993 ...A TORNADO WATCH IS IN EFFECT FOR EXTREME NORTHWEST IOWA UNTIL 8 PM... AT 330 PM CDT...ISOLATED VERY STRONG THUNDERSTORMS WERE LOCATED OVER NORTHWEST IOWA. THE STORMS WERE OCCURRING NEAR SPENCER...AND 30 MILES NORTHWEST OF SPENCER NEAR SIBLEY. THESE STORMS WERE PRODUCING VERY HEAVY RAIN...DANGEROUS LIGHTNING AND HAIL. THE STORMS WERE PART OF AN AREA OF SHOWERS AND STORMS OCCURRING WEST OF A LINE FROM 25 MILES NORTHEAST OF SPENCER NEAR ESTHERVILLE...TO FORT DODGE...TO 60 MILES WEST OF DES MOINES NEAR AUDUBON. OTHER WIDELY SCATTERED SHOWERS WERE OCCURRING OVER CENTRAL AND SOUTH CENTRAL IOWA. THE SHOWERS WERE IN A NARROW BAND EXTENDING FROM 40 MILES SOUTHWEST OF DES MOINES NEAR GREENFIELD...TO 60 MILES SOUTH OF DES MOINES NEAR LAMONI. / THE STORMS AND SHOWERS WERE MOVING EAST AT 30 MILES AN HOUR. ...CORRECTED FOR EXPIRATION TIME... JAK/RAP
Special weather statement, Jun 29, 3:44 PM CDT, 46 minutes before
IAZALL-292140- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...CORRECTION... NATIONAL WEATHER SERVICE DES MOINES IA 342 PM CDT TUE JUN 29 1993 ...A TORNADO WATCH IS IN EFFECT FOR EXTREME NORTHWEST IOWA UNTIL 8 PM... AT 330 PM CDT...ISOLATED VERY STRONG THUNDERSTORMS WERE LOCATED OVER NORTHWEST IOWA. THE STORMS WERE OCCURRING NEAR SPENCER...AND 30 MILES NORTHWEST OF SPENCER NEAR SIBLEY. THESE STORMS WERE PRODUCING VERY HEAVY RAIN...DANGEROUS LIGHTNING AND HAIL. THE STORMS WERE PART OF AN AREA OF SHOWERS AND STORMS OCCURRING WEST OF A LINE FROM 25 MILES NORTHEAST OF SPENCER NEAR ESTHERVILLE...TO FORT DODGE...TO 60 MILES WEST OF DES MOINES NEAR AUDUBON. OTHER WIDELY SCATTERED SHOWERS WERE OCCURRING OVER CENTRAL AND SOUTH CENTRAL IOWA. THE SHOWERS WERE IN A NARROW BAND EXTENDING FROM 40 MILES SOUTHWEST OF DES MOINES NEAR GREENFIELD...TO 60 MILES SOUTH OF DES MOINES NEAR LAMONI. THE STORMS AND SHOWERS WERE MOVING EAST AT 30 MILES AN HOUR. ...CORRECTED FOR EXPIRATION TIME... JAK/RAP
Special weather statement, Jun 29, 4:05 PM CDT, 25 minutes before
IAZ006>011-016>019-026>029-038>040-292200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 405 PM CDT TUE JUN 29 1993 ...THUNDERSTORMS ARE MOVING TOWARD NORTH CENTRAL IOWA... AT 400 PM CDT...A FEW THUNDERSTORMS PRODUCING HEAVY RAIN... HAIL...GUSTY WINDS AND FREQUENT LIGHTNING WERE APPORACHING THE I35 CORRIDOR. THESE THUNDERSTORMS ARE MOVING EAST AROUND 35 MILES AN HOUR AND SHOULD AFFECT THE HAMPTON...CLEAR LAKE/ MASON CITY...SHEFFIELD...GARNER...FOREST CITY AND BRITT AREAS BETWEEN 5 AND 530 PM CDT. THESE THUNDERSTORMS ARE BEING MONITORED CLOSELY BY THE NATIONAL WEATHER SERVICE AND UPDATES ON THESE STORMS WILL BE ISSUED AS THEY MOVE THROUGH NORTH CENTRAL INTO NORTHEAST IOWA. PEOPLE SHOULD BE ALERT FOR THESE THUNDERSTORMS AND BE PREPARED TO TAKE QUICK ACTION IF THE STORMS BECOME INTENSE. RR
Special weather statement, Jun 29, 4:08 PM CDT, 22 minutes before
IAZ006>011-016>019-026>029-038>040-292200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 405 PM CDT TUE JUN 29 1993 ...THUNDERSTORMS ARE MOVING TOWARD NORTH CENTRAL IOWA... AT 400 PM CDT...A FEW THUNDERSTORMS PRODUCING HEAVY RAIN... HAIL...GUSTY WINDS AND FREQUENT LIGHTNING WERE APPORACHING THE I35 CORRIDOR. THESE THUNDERSTORMS ARE MOVING EAST AROUND 35 MILES AN HOUR AND SHOULD AFFECT THE HAMPTON...CLEAR LAKE/ MASON CITY...SHEFFIELD...GARNER...FOREST CITY AND BRITT AREAS BETWEEN 5 AND 530 PM CDT. THESE THUNDERSTORMS ARE BEING MONITORED CLOSELY BY THE NATIONAL WEATHER SERVICE AND UPDATES ON THESE STORMS WILL BE ISSUED AS THEY MOVE THROUGH NORTH CENTRAL INTO NORTHEAST IOWA. PEOPLE SHOULD BE ALERT FOR THESE THUNDERSTORMS AND BE PREPARED TO TAKE QUICK ACTION IF THE STORMS BECOME INTENSE. RR
Special weather statement, Jun 29, 4:26 PM CDT, 4 minutes before
IAZ014-003-292230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 426 PM CDT TUE JUN 29 1993 ...TORRENTIAL DOWNPOURS CONTINUE IN PARTS OF NORTHERN IOWA... VERY HEAVY RAINFALL CONTINUES IN THE IOWA LAKES AREA THIS AFTERNOON. THREE INCHES OF RAIN WAS REPORTED AT OCHEYEDEN IN 45 MINUTES...AND NEARLY THAT MUCH (2.8 INCHES) WAS LOGGED JUST TO THE WEST AT ALLENDORF. AT SPIRIT LAKE...RAIN WAS FALLING AT THE RATE OF ONE-TENTH OF AN INCH PER MINUTE...WITH 1.3 INCHES RECORDED BETWEEN 400 AND 415 PM. A FLASH FLOOD WARNING REMAINS IN EFFECT FOR DICKINSON COUNTY UNTIL 715 PM...AND A FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE NORTHWEST CORNER OF THE STATE UNTIL MIDNIGHT. WITH RAINFALL OF THE INTENSITY FALLING ALONG HIGHWAY 9 IN OSCEOLA AND DICKINSON COUNTIES...ANYONE DRIVING IN THE IOWA LAKES AREA SHOULD BE ESPECIALLY CAREFUL THIS EVENING. FLASH FLOOD WATERS RISE VERY QUICKLY AND CAN EASILY SEND EVEN LARGE VEHICLES FLOATING OUT OF CONTROL. &
Special weather statement, Jun 29, 4:27 PM CDT, 3 minutes before
IAZ014-003-292230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 426 PM CDT TUE JUN 29 1993 ...TORRENTIAL DOWNPOURS CONTINUE IN PARTS OF NORTHERN IOWA... VERY HEAVY RAINFALL CONTINUES IN THE IOWA LAKES AREA THIS AFTERNOON. THREE INCHES OF RAIN WAS REPORTED AT OCHEYEDEN IN 45 MINUTES...AND NEARLY THAT MUCH (2.8 INCHES) WAS LOGGED JUST TO THE WEST AT ALLENDORF. AT SPIRIT LAKE...RAIN WAS FALLING AT THE RATE OF ONE-TENTH OF AN INCH PER MINUTE...WITH 1.3 INCHES RECORDED BETWEEN 400 AND 415 PM. A FLASH FLOOD WARNING REMAINS IN EFFECT FOR DICKINSON COUNTY UNTIL 715 PM...AND A FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE NORTHWEST CORNER OF THE STATE UNTIL MIDNIGHT. WITH RAINFALL OF THE INTENSITY FALLING ALONG HIGHWAY 9 IN OSCEOLA AND DICKINSON COUNTIES...ANYONE DRIVING IN THE IOWA LAKES AREA SHOULD BE ESPECIALLY CAREFUL THIS EVENING. FLASH FLOOD WATERS RISE VERY QUICKLY AND CAN EASILY SEND EVEN LARGE VEHICLES FLOATING OUT OF CONTROL. &
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 3:24 PM CDT | Severe Thunderstorm Warning | DMX | Clay, Dickinson | 28 min |
| Jun 29, 4:11 PM CDT | Flash Flood Warning | DMX | Dickinson | 3 hr |
| Jun 29, 5:01 PM CDT | Severe Thunderstorm Warning | DMX | Emmet | 39 min |
| Jun 29, 5:05 PM CDT | Flash Flood Warning | DMX | Emmet | 3 hr |
| Jun 29, 5:43 PM CDT | Flash Flood Warning | DMX | Kossuth, Palo Alto | 62 min |
| Jun 29, 5:43 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth, Palo Alto | 62 min |
| Jun 29, 5:46 PM CDT | Flash Flood Warning | DMX | Clay, Dickinson | 59 min |
| Jun 29, 5:46 PM CDT | Severe Thunderstorm Warning | DMX | Clay, Dickinson | 59 min |
| Jun 29, 5:58 PM CDT | Tornado Warning | DMX | Kossuth | 32 min |
| Jun 29, 6:04 PM CDT | Severe Thunderstorm Warning | DMX | Palo Alto | 26 min |
| Jun 29, 6:10 PM CDT | Severe Thunderstorm Warning | DMX | Hancock | 50 min |
| Jun 29, 6:30 PM CDT | Severe Thunderstorm Warning | DMX | Pocahontas | 30 min |
| Jun 29, 6:42 PM CDT | Flash Flood Warning | DMX | Kossuth | 3 hr |
| Jun 29, 6:55 PM CDT | Flash Flood Warning | DMX | Buena Vista | 2 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.