Alert archive / Iowa / Tornado Warnings in 1993
Tornado Warning 26, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Jul 10, 1993, 1:38 PM CDT for Cerro Gordo County, Iowa. It was in force for 22 min.
The area
The counties it named.
The facts
- Issued
- Jul 10, 1993, 1:38 PM CDT (18:38 UTC)
- Expired
- Jul 10, 1993, 2:00 PM CDT
- In force
- 22 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Cerro Gordo County, IA
The nearest sounding before it
Minneapolis, MN (KSTC), launched 12:00Z, 6.6 hours before the alert went out and 198 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
- 12 J/kg
- Mixed-layer CIN
- -294 J/kg
- Mixed-layer LCL
- 1456 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 129 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 KALO 101845 TORALO IAC033-101900- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE WATERLOO IA 138 PM CDT SAT JUL 10 1993 THE NATIONAL WEATHER SERVICE IN WATERLOO HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 200 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH CENTRAL IOWA ...CERRO GORDO COUNTY AT 142 PM...A TORNADO WAS REPORTED ON THE GROUND 15 MILES SOUTHWEST OF MASON CITY NEAR THE TOWN OF MESERVEY. MOVEMENT OF THIS STORM WAS TO THE EAST AT 30 MILES AN HOUR. PERSONS IN THE TOWNS OF THORNTON...SWALEDALE...AND SHEFFIELD SHOULD TAKE COVER IMMEDIATELY!! DURING A TORNADO...THE SAFEST PLACE IS IN A BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM SUCH AS A CLOSET ON THE LOWEST FLOOR. AVOID WINDOWS. LINDENBERG/PABST &
What forecasters said that day
The local office's own words before this tornado 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, Jul 10, 11:50 AM CDT, 1 hour 48 minutes before
IAZALL-101730- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 1150 AM CDT SAT JUL 10 1993 ...STRONG THUNDERSTORMS ARE ACROSS NORTH CENTRAL AND NORTHWEST IOWA... ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ABOUT THE NORTH HALF OF IOWA FROM NOON UNTIL 5 PM CDT... AT 1146 AM CDT...A BAND OF STRONG THUNDERSTORMS CONTINUED ACROSS NORTHWEST AND NORTH CENTRAL IOWA. THIS STORM BAND WAS 20 MILES WIDE AND EXTENDED FROM 25 MILES NORTHEAST OF SIOUX CITY...TO JUST NORTHWEST OF SPENCER...TO 10 MILES NORTH OF BANCROFT...TO THE MINNESOTA BORDER NORTH OF MASON CITY. THESE STORMS ARE DROPPING A LOT OF RAIN. ONE AND ONE-TENTH OF AN INCH OF RAIN FELL DURING A 50 MINUTE PERIOD AT ESTHERVILLE. ALSO...THE LEADING EDGE OF THE STORMS MAY PRODUCE WIND GUSTS TO 55 MILES AN HOUR. OUTDOOR RECREATIONAL AND BOATING INTERESTS IN THE IOWA GREAT LAKES AREA SHOULD TAKE COVER NOW. ALSO...FLOODING OF FARM FIELDS...ROADSIDE DITCHES...UNDERPASSES AND CITY STREETS ALONG WITH RAPID RISES OF SMALL STREAMS WILL OCCUR. R A PRENTICE
Special weather statement, Jul 10, 12:43 PM CDT, 55 minutes before
IAZALL-101815- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 1243 PM CDT SAT JUL 10 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ABOUT THE NORTH HALF OF IOWA FROM NOON UNTIL 5 PM CDT THIS SATURDAY AFTERNOON... ...VERY STRONG THUNDERSTORMS CONTINUED OVER NORTHWEST AND NORTH CENTRAL IOWA... AT 1225 PM CDT...NUMEROUS VERY STRONG THUNDERSTORMS...PRODUCING VERY LARGE AMOUNTS OF RAIN...BRIEF STRONG GUSTY WIND...AND SMALL HAIL WERE LOCATED IN A 60 MILE WIDE AREA...CENTERED FROM 55 MILES EAST OF SIOUX CITY...NEAR LAKE VIEW...TO THE IOWA/MINNESOTA BORDER 25 MILES NORTHEAST OF MASON CITY. THESE STORMS WERE PRODUCING AROUND ONE INCH OF RAIN IN ABOUT AN HOURS TIME...AS THEY MOVE EAST AT 25 TO 30 MILES AN HOUR. 1/4 INCH HAIL WAS REPORTED IN THE GRAETINGER...LOCATED 70 MILES WEST OF MASON CITY...AT AROUND 1230 THIS AFTERNOON. ALSO...FLOODING OF FARM FIELDS...ROADSIDE DITCHES...UNDERPASSES AND CITY STREETS ALONG WITH RAPID RISES OF SMALL STREAMS WILL OCCUR. WPM ~" FZPSTWWUSZ _FPUS Rq`WWUS" DFTXW* u 6WWUSx g WUUS~ x 6WWUS `q6WWUS P6WWUS (@ 6WWUS xy WUUS ]66WWUS VQ6WWUS xuMn6WWUS ZWHPNt C~WWUSD DsF6WWUSN Z WUUS o6WWUS MWWUS LQ6WWUS @"6WWUS
Special weather statement, Jul 10, 12:43 PM CDT, 55 minutes before
IAZALL-101815- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 1243 PM CDT SAT JUL 10 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ABOUT THE NORTH HALF OF IOWA FROM NOON UNTIL 5 PM CDT THIS SATURDAY AFTERNOON... ...VERY STRONG THUNDERSTORMS CONTINUED OVER NORTHWEST AND NORTH CENTRAL IOWA... AT 1225 PM CDT...NUMEROUS VERY STRONG THUNDERSTORMS...PRODUCING VERY LARGE AMOUNTS OF RAIN...BRIEF STRONG GUSTY WIND...AND SMALL HAIL WERE LOCATED IN A 60 MILE WIDE AREA...CENTERED FROM 55 MILES EAST OF SIOUX CITY...NEAR LAKE VIEW...TO THE IOWA/MINNESOTA BORDER 25 MILES NORTHEAST OF MASON CITY. THESE STORMS WERE PRODUCING AROUND ONE INCH OF RAIN IN ABOUT AN HOURS TIME...AS THEY MOVE EAST AT 25 TO 30 MILES AN HOUR. 1/4 INCH HAIL WAS REPORTED IN THE GRAETINGER...LOCATED 70 MILES WEST OF MASON CITY...AT AROUND 1230 THIS AFTERNOON. ALSO...FLOODING OF FARM FIELDS...ROADSIDE DITCHES...UNDERPASSES AND CITY STREETS ALONG WITH RAPID RISES OF SMALL STREAMS WILL OCCUR. WPM ~" FZPSTWWUSZ _FPUS Rq`WWUS" DFTXW* u 6WWUSx g WUUS~ x 6WWUS `q6WWUS P6WWUS (@ 6WWUS xy WUUS ]66WWUS VQ6WWUS xuMn6WWUS ZWHPNt C~WWUSD DsF6WWUSN Z WUUS o6WWUS MWWUS LQ6WWUS @"6WWUS
Special weather statement, Jul 10, 12:50 PM CDT, 48 minutes before
IAZ006-007-008-009-010-011-016-017-018-019-026-027-028-029-038- 039-040-101850- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 1250 PM CDT SAT JUL 10 1993 ...SEVERE THUNDERSTORM WATCH IN EFFECT THROUGH 5 PM... AT 1230 PM RADAR INDICATED STRONG THUNDERSTORMS IN NORTH CENTRAL IOWA. THESE STORM WERE PRODUCING WIND GUSTS TO 45 MILES AN HOUR...HEAVY DOWNPOURS AND PEA SIZE HAIL. THE STORMS WILL AFFECT AREAS TO THE NORTH OF HIGHWAY 3 AND WEST OF HIGHWAY 218 FOR THE NEXT FEW HOURS. THESE STORMS WILL AFFECT THE MASON CITY...HAMPTON...OSAGE AND CHARLES CITY AREAS. THESE STORMS COULD QUICKLY BECOME SEVERE AND PRODUCE DAMAGING WINDS ...HEAVY RAIN AND LARGE HAIL. THOSE INVOLVED RECREATIONAL ACTIVITIES ON LAKES IN NORTH CENTRAL IOWA SHOULD LEAVE THE WATER AND BE PREPARED TO SEEK SHELTER AS THE LARGE AREA OF STRONG THUNDERSTORMS MOVES QUICKLY INTO NORTH CENTRAL AND NORTHEAST IOWA. STORMS COULD QUICKLY PRODUCE DAMAGING WINDS AND LARGE HAIL. A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF NORTHEAST AND NORTH CENTRAL IOWA THROUGH 5 PM. STAY TUNED TO NOAA WEATHER RADIO AND LOCAL RADI AND TELEVISION FOR ADDITIONAL STATEMENTS AND POSSIBLE WARNINGS. PABST
Special weather statement, Jul 10, 12:51 PM CDT, 47 minutes before
IAZ006-007-008-009-010-011-016-017-018-019-026-027-028-029-038- 039-040-101850- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 1250 PM CDT SAT JUL 10 1993 ...SEVERE THUNDERSTORM WATCH IN EFFECT THROUGH 5 PM... AT 1230 PM RADAR INDICATED STRONG THUNDERSTORMS IN NORTH CENTRAL IOWA. THESE STORM WERE PRODUCING WIND GUSTS TO 45 MILES AN HOUR...HEAVY DOWNPOURS AND PEA SIZE HAIL. THE STORMS WILL AFFECT AREAS TO THE NORTH OF HIGHWAY 3 AND WEST OF HIGHWAY 218 FOR THE NEXT FEW HOURS. THESE STORMS WILL AFFECT THE MASON CITY...HAMPTON...OSAGE AND CHARLES CITY AREAS. THESE STORMS COULD QUICKLY BECOME SEVERE AND PRODUCE DAMAGING WINDS ...HEAVY RAIN AND LARGE HAIL. THOSE INVOLVED RECREATIONAL ACTIVITIES ON LAKES IN NORTH CENTRAL IOWA SHOULD LEAVE THE WATER AND BE PREPARED TO SEEK SHELTER AS THE LARGE AREA OF STRONG THUNDERSTORMS MOVES QUICKLY INTO NORTH CENTRAL AND NORTHEAST IOWA. STORMS COULD QUICKLY PRODUCE DAMAGING WINDS AND LARGE HAIL. A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF NORTHEAST AND NORTH CENTRAL IOWA THROUGH 5 PM. STAY TUNED TO NOAA WEATHER RADIO AND LOCAL RADI AND TELEVISION FOR ADDITIONAL STATEMENTS AND POSSIBLE WARNINGS. PABST
Special weather statement, Jul 10, 12:58 PM CDT, 40 minutes before
IAZALL-101900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 1258 PM CDT SAT JUL 10 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ABOUT THE NORTH HALF OF IOWA FROM NOON UNTIL 5 PM CDT THIS SATURDAY AFTERNOON... AT 1250 PM CDT...NUMEROUS VERY STRONG THUNDERSTORMS...PRODUCING HEAVY RAIN...BRIEF STRONG GUSTY WINDS TO 45 MILES AN HOUR...AND SMALL HAIL CONTINUED ACROSS NORTHWEST AND NORTH CENTRAL IOWA. THIS STORM LINE EXTENDED FROM 5 MILES NORTHWEST OF IDA GROVE...TO STORM LAKE...TO POCAHONTAS...TO ALGONA...TO THE MINNESOTA BORDER NORTH OF MASON CITY. ALSO...ISOLATED STRONG STORMS WERE ALSO LOCATED 5 MILES NORTHEAST OF ROCKWELL CITY AND 5 MILES NORTHEAST OF FORT DODGE. THESE STORMS WERE PRODUCING AROUND ONE TO ONE AND ONE-HALF INCHES OF RAIN PER HOUR...AS THEY MOVE EAST AT 25 TO 30 MILES AN HOUR. PEA SIZED HAIL WAS REPORTED AT SPENCER AT 1201 PM...AT GRAETINGER AT 1225 PM...AND 2 MILES WEST OF FORT DODGE AT 1233 PM...AND AT THE POCAHONTAS AIRPORT AT 1255 PM. HEAVY RAIN WILL CAUSE FLOODING OF FARM FIELDS...ROADSIDE DITCHES... UNDERPASSES AND CITY STREETS ALONG WITH RAPID RISES OF SMALL STREAMS. R A PRENTICE
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 1:19 PM CDT | Severe Thunderstorm Warning | DMX | Hancock | 41 min |
| Jul 10, 1:19 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 56 min |
| Jul 10, 1:35 PM CDT | Severe Thunderstorm Warning | DMX | Webster | 25 min |
| Jul 10, 1:44 PM CDT | Severe Thunderstorm Warning | DMX | Mitchell | 46 min |
| Jul 10, 2:03 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster | 27 min |
| Jul 10, 2:21 PM CDT | Tornado Warning | DMX | Chickasaw, Floyd | 39 min |
| Jul 10, 2:33 PM CDT | Severe Thunderstorm Warning | DMX | Winneshiek | 27 min |
| Jul 10, 2:40 PM CDT | Severe Thunderstorm Warning | DMX | Allamakee | 50 min |
| Jul 10, 2:45 PM CDT | Severe Thunderstorm Warning | DMX | Story | 30 min |
| Jul 10, 2:46 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 29 min |
| Jul 10, 3:02 PM CDT | Severe Thunderstorm Warning | DMX | Buchanan, Fayette | 43 min |
| Jul 10, 3:50 PM CDT | Severe Thunderstorm Warning | DMX | Fayette | 21 min |
Nearby
Tornado Warnings in Iowa, 1993Every tornado warning in 1993Tornadoes 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.