Alert archive / South Dakota / Tornado Warnings in 1993
Tornado Warning 16, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at Jun 12, 1993, 10:35 PM CDT for Brule County, South Dakota. It was in force for 40 min.
The area
The counties it named.
The facts
- Issued
- Jun 12, 1993, 10:35 PM CDT (03:35 UTC)
- Expired
- Jun 12, 1993, 11:15 PM CDT
- In force
- 40 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County Brule County, SD
The nearest sounding before it
Rapid City, SD (KRAP), launched 00:00Z, 3.6 hours before the alert went out and 307 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
- 151 J/kg
- Mixed-layer CIN
- -287 J/kg
- Mixed-layer LCL
- 1196 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 121 m²/s²
- 0-3 km storm-relative helicity
- 178 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
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 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, Jun 12, 4:50 PM CDT, 5 hours 45 minutes before
IAZ013-020-021-031-032-043-NEZ094>096-SDZ066-122230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 449 PM CDT SAT JUN 12 1993 ...SCATTERED STRONG THUNDERSTORMS WILL CONTINUE LATE THIS AFTERNOON... AT 445 PM CDT A STRONG THUNDERSTORM WAS 25 MILES SOUTH OF SIOUX CITY... OR WEST OF WHITING IOWA. MOVEMENT WAS NORTHEAST AT 25 MILES AN HOUR. THIS STORM WILL PRODUCE HEAVY RAIN...DANGEROUS LIGHTNING AND SMALL HAIL AS IT MOVES THROUGH WHITING...SLOAN AND HORNICK IOWA AROUND 515 PM. OTHER STRONG THUNDERSTORMS PRODUCING HEAVY RAIN ARE EXPECTED TO MOVE THROUGH BLENCOE AND ONAWA IOWA AROUND 530 PM. MORE HEAVY RAIN IS ALSO EXPECTED TO CONTINUE ACROSS EASTERN CHEROKEE COUNTY. S QUINN
Special weather statement, Jun 12, 6:55 PM CDT, 3 hours 40 minutes before
SDZ010-011-012-130050- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE HURON SD 655 PM CDT SAT JUN 12 1993 ...TORNADO WATCH FOR MUCH OF CENTRAL AND PART OF EASTERN SOUTH DAKOTA UNTIL MIDNIGHT CDT.. AT 625 PM CDT...THUNDERSTORMS WITH VERY HEAVY RAIN...HAIL AND STRONG GUSTY WINDS WERE OVER PARTS OF CENTRAL AND NORTH CENTRAL SOUTH DAKOTA. THE STORMS WERE LOCATED 25 MILES NORTHWEST OF PIERRE AND 20 MILES NORTH OF MOBRIDGE. PEOPLE IN CENTRAL SOUTH DAKOTA AND NORTH CENTRAL SOUTH DAKOTA SHOULD TAKE COVER WHEN THESE STORMS APPROACH. MOVEMENT OF THESE STORMS WAS TO NORTHEAST AT 30 MILES AN HOUR. MOHR
Special weather statement, Jun 12, 6:57 PM CDT, 3 hours 38 minutes before
SDZ010-011-012-130050- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE HURON SD 655 PM CDT SAT JUN 12 1993 ...TORNADO WATCH FOR MUCH OF CENTRAL AND PART OF EASTERN SOUTH DAKOTA UNTIL MIDNIGHT CDT.. AT 625 PM CDT...THUNDERSTORMS WITH VERY HEAVY RAIN...HAIL AND STRONG GUSTY WINDS WERE OVER PARTS OF CENTRAL AND NORTH CENTRAL SOUTH DAKOTA. THE STORMS WERE LOCATED 25 MILES NORTHWEST OF PIERRE AND 20 MILES NORTH OF MOBRIDGE. PEOPLE IN CENTRAL SOUTH DAKOTA AND NORTH CENTRAL SOUTH DAKOTA SHOULD TAKE COVER WHEN THESE STORMS APPROACH. MOVEMENT OF THESE STORMS WAS TO NORTHEAST AT 30 MILES AN HOUR. MOHR
Special weather statement, Jun 12, 7:18 PM CDT, 3 hours 17 minutes before
SDZ015-130200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 715 PM CDT SAT JUN 12 1993 ...TORNADO WATCH NUMBER 424 IN EFFECT UNTIL 12 MIDNIGHT... THUNDERSTORMS ARE DEVELOPING IN SOUTH CENTRAL SOUTH DAKOTA ALONG AND AHEAD OF AN ACTIVE COLD FRONT. SEVERE WEATHER HAS ALREADY OCCURRED IN CENTRAL SOUTH DAKOTA NEAR THE FRONT. THE FRONT IS MOVING SLOW EAST. AS THE EVENING PROGRESSES THUNDERSTORMS IN SOUTH CENTRAL SOUTH DAKOTA WILL LIKELY BECOME SEVERE. THE COUNTIES MOST AT RISK OVER THE NEXT SEVERAL HOURS WILL BE TODD...MELLETTE...AND TRIPP. A TORNADO WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR TORNADO DEVELOPMENT. PEOPLE IN THE TORNADO WATCH AREA ARE URGED TO KEEP A CLOSE EYE ON THE WEATHER THIS EVENING. KRIEHN
Special weather statement, Jun 12, 9:19 PM CDT, 1 hour 16 minutes before
SDZ015-019-130400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 915 PM CDT SAT JUN 12 1993 ...TORNADO WATCH NUMBER 424 REMAINS IN EFFECT UNTIL 12 MIDNIGHT CDT FOR MOST OF CENTRAL SOUTH DAKOTA... SEVERE THUNDERSTORMS...SOME PRODUCING TORNADOES...CONTINUE TO MOVE SLOWLY EAST ACROSS CENTRAL SOUTH DAKOTA ALONG AN ACTIVE COLD FRONT. OVER THE PAST HOUR AN A HALF MOST OF THE SEVERE WEATHER HAS OCCURRED IN THE PIERRE AREA. IN SOUTH CENTRAL SOUTH DAKOTA THE THUNDERSTORMS EXTENDED FROM NORTHWEST TRIPP COUNTY TO SOUTHEAST TODD COUNTY. UNTIL 10 PM THE COUNTIES MOST AT RISK IN SOUTH CENTRAL SOUTH DAKOTA WILL BE TRIPP...BRULE...AND GREGORY. BIGGER TOWNS IN THOSE COUNTIES INCLUDE WINNER AND CHAMBERLAIN. A TORNADO WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR TORNADO DEVELOPMENT. PEOPLE IN THE TORNADO WATCH AREA ARE URGED TO KEEP A CLOSE EYE ON THE WEATHER TONIGHT. STAY TUNED TO LOCAL RADIO OR TV OR YOUR NATIONAL WEATHER SERVICE WEATHER RADIO. KRIEHN
Special weather statement, Jun 12, 9:55 PM CDT, 40 minutes before
SDZ010-011-012-130450- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE HURON SD 955 PM CDT SAT JUN 12 1993 ...TORNADO WATCH FOR MUCH OF CENTRAL AND PART OF EASTERN SOUTH DAKOTA UNTIL MIDNIGHT CDT.. AT 925 PM CDT...THUNDERSTORMS WITH VERY HEAVY RAIN...HAIL AND STRONG GUSTY WINDS WERE OCCURRING OVER PARTS OF CENTRAL SOUTH DAKOTA. THE STRONGEST THUNDERSTORM WAS OVER EASTERN LYMAN COUNTY OR ABOUT 10 MILES NORTHWEST OF CHAMBERLAIN. MOVEMENT OF THESE STORMS WAS TO EAST AT 25 MILES AN HOUR. MILLER
Nearby
Tornado Warnings in South Dakota, 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.