Alert archive / South Dakota / Tornado Warnings in 1993
Tornado Warning 18, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at Jun 29, 1993, 4:57 PM CDT for Tripp County, South Dakota. It was in force for 33 min.
The area
The counties it named.
The facts
- Issued
- Jun 29, 1993, 4:57 PM CDT (21:57 UTC)
- Expired
- Jun 29, 1993, 5:30 PM CDT
- In force
- 33 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County Tripp County, SD
The nearest sounding before it
Aberdeen, SD (KHON), launched 12:00Z, 10.0 hours before the alert went out and 209 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
- 145 J/kg
- Mixed-layer CIN
- -368 J/kg
- Mixed-layer LCL
- 812 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 237 m²/s²
- 0-3 km storm-relative helicity
- 291 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFSD 292159 TORFSD SDC123-292230- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 457 PM CDT TUE JUN 29 1993 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 530 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL SOUTH DAKOTA ...TRIPP COUNTY AT 500 PM A TORNADO WAS JUST EAST OF WINNER. IT WAS MOVING EAST AT 15 MPH AND WILL BE MOVING THROUGH THE EASTERN HALF OF THE COUNTY BETWEEN NOW AND 430 PM MDT. PEOPLE WHO LIVE IN OR NEAR WINNER OR EAST OF WINNER IN TRIPP COUNTY SHOULD TAKE COVER NOW. THIS IS A DANGEROUS STORM. MOVE QUICKLY TO UNDERGROUND SHELTER IF AVAILABLE. OTHERWISE...GO TO AN INTERIOR ROOM ON THE LOWEST FLOOR AN AVOID WINDOWS. ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. KRIEHN &
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 29, 3:36 PM CDT, 1 hour 21 minutes before
IAZ013-020-021-031-032-043-NEZ094>096-SDZ066-292130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 336 PM CDT TUE JUN 29 1993 ...STRONG THUNDERSTORMS WERE MOVING THROUGH OBRIEN COUNTY... AT 335 PM STRONG THUNDERSTORMS WERE 60 MILES NORTHWEST OF SIOUX CITY OR NEAR ARCHER IOWA. THEY WERE MOVING EAST AT 25 MILES AN HOUR. PRIMGHAR...ARCHER AND HARTLEY CAN EXPECT HEAVY RAIN...DANGEROUS LIGHTNING...GUSTY WIND AND SMALL HAIL FROM THESE STORMS UNTIL 4 PM. PEOPLE IN NORTHERN OBRIEN COUNTY SHOULD BE ALERT AND MOVE QUICKLY TO A PLACE OF SAFETY IF THREATENING WEATHER APPROACHES. A TORNADO WATCH IS IN EFFECT UNTIL 8 PM FOR OBRIEN AND SIOUX COUNTIES IN IOWA AND FOR UNION COUNTY SOUTH DAKOTA. J QUINN
Special weather statement, Jun 29, 3:38 PM CDT, 1 hour 19 minutes before
IAZ013-020-021-031-032-043-NEZ094>096-SDZ066-292130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 336 PM CDT TUE JUN 29 1993 ...STRONG THUNDERSTORMS WERE MOVING THROUGH OBRIEN COUNTY... AT 335 PM STRONG THUNDERSTORMS WERE 60 MILES NORTHWEST OF SIOUX CITY OR NEAR ARCHER IOWA. THEY WERE MOVING EAST AT 25 MILES AN HOUR. PRIMGHAR...ARCHER AND HARTLEY CAN EXPECT HEAVY RAIN...DANGEROUS LIGHTNING...GUSTY WIND AND SMALL HAIL FROM THESE STORMS UNTIL 4 PM. PEOPLE IN NORTHERN OBRIEN COUNTY SHOULD BE ALERT AND MOVE QUICKLY TO A PLACE OF SAFETY IF THREATENING WEATHER APPROACHES. A TORNADO WATCH IS IN EFFECT UNTIL 8 PM FOR OBRIEN AND SIOUX COUNTIES IN IOWA AND FOR UNION COUNTY SOUTH DAKOTA. J QUINN
Special weather statement, Jun 29, 3:47 PM CDT, 1 hour 10 minutes before
IAZ001-292130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 350 PM CDT TUE JUN 29 1993 ...A TORNADO WTCH IS IN EFFECT FOR SOUTHERN SOUTH DAKOTA UNTIL 5 PM CDT... AT 340 PM CDT A STRONG THUNDERSTORM WAS LOCATED IN OSCEOLA COUNTY IN NORTHWEST IOWA NEAR THE COMMUNITY OF SIBLEY. THIS THUNDERSTORM WAS MOVING TO THE EAST AT 20 MILES AN HOUR AND MAY PRODUCE HAIL...GUSTY SURFACE WINDS ...VERY HEAVY RAIN...AND DANGEROUS LIGHTNING. AT 330 PM CDT THE SHERIFFS DEPARTMENT AT SIBLEY REPORTED A FUNNEL CLOUD ASSOCIATED WITH THIS STORM. PERSONS IN OSCEOLA COUNTY INCLUDING THE COMMUNITY OF SIBLEY AND OCHEYEDAN SHOULD BE ON THE LOOKOUT FOR THIS STORM UNTIL 430 PM CDT. STAY TUNED TO YOUR LOCAL TV OR RADIO STATION FOR FURTHER STATEMENTS AND POSSIBLE WARN- INGS. BUSS
Special weather statement, Jun 29, 4:09 PM CDT, 48 minutes before
IAZ013-020-021-031-032-043-NEZ094>096-SDZ066-292200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 509 PM CDT TUE JUN 29 1993 ...STRONG THUNDERSTORMS AND HEAVY RAIN NORTH AND EAST OF SIOUX CITY... AT 505 PM STRONG THUNDERSTORMS AND HEAVY RAIN WERE IN A NARROW BAND FROM NEAR SHELDON TO ARTHUR IOWA...60 MILES EAST OF SIOUX CITY. THE BAND WAS MOVING EAST AT 25 MILES AN HOUR. DANGEROUS LIGHTNING AND SMALL HAIL MAY ALSO ACCOMPANY THESE STORMS. THEY WILL MOVE EAST OF OBRIEN AND CHEROKEE COUNTIES AROUND 5 PM. A TORNADO WATCH IS IN EFFECT UNTIL 8 PM FOR OBRIEN AND SIOUX COUNTIES IN IOWA AND FOR UNION COUNTY SOUTH DAKOTA. A FLASH FLOOD WATCH IS IN EFFECT UNTIL MIDNIGHT. J QUINN
Special weather statement, Jun 29, 4:45 PM CDT, 12 minutes before
MNZ017-292230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 440 PM CDT TUE JUN 29 1993 ...A TORNADO WATCH IS IN EFFECT FOR MUCH OF SOUTHERN SOUTH DAKOTA UNTIL 11 PM CDT AND FOR THE ADJACENT PARTS OF SOUTHWEST MINNESOTA AND NORTHWEST IOWA UNTUL 11 PM CDT... AT 440 PM CDT STRONG THUNDERSTORMS WERE LOCATED JUST WEST OF WORTHINGTON IN NOBLES COUNTY OF SOUTHWEST MINNESOTA. THESE STORMS WERE MOVING TO THE EAST AT 20 MILES AN HOUR AND WERE PRODUCING VERY HEAVY RAIN AND ARE CAPABLE OF PRODUCING HAIL...STRONG WINDS...AND DANGEROUS LIGHTNING. PEOPLE IN NOBLES COUNTY INCLUDING THE COMMUNITES OF WORTHINGTON AND BREWSTER SHOULD BE ON THE LOOKOUT FOR THESE STORMS UNTIL 530 PM CDTL. STAY TUNED TO YOUR LOCAL TV AND RADIO STATION FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. BUSS
Special weather statement, Jun 29, 4:51 PM CDT, 6 minutes before
MNZ017-292230- SPECIAL WEATHER STATEMENT...HEADLINE CORRECTION NATIONAL WEATHER SERVICE SIOUX FALLS SD 440 PM CDT TUE JUN 29 1993 ...A TORNADO WATCH IS IN EFFECT FOR MUCH OF SOUTHERN SOUTH DAKOTA UNTIL 11 PM CDT AND FOR THE ADJACENT PARTS OF SOUTHWEST MINNESOTA AND NORTHWEST IOWA UNTUL 8 PM CDT... AT 440 PM CDT STRONG THUNDERSTORMS WERE LOCATED JUST WEST OF WORTHINGTON IN NOBLES COUNTY OF SOUTHWEST MINNESOTA. THESE STORMS WERE MOVING TO THE EAST AT 20 MILES AN HOUR AND WERE PRODUCING VERY HEAVY RAIN AND ARE CAPABLE OF PRODUCING HAIL...STRONG WINDS...AND DANGEROUS LIGHTNING. PEOPLE IN NOBLES COUNTY INCLUDING THE COMMUNITES OF WORTHINGTON AND BREWSTER SHOULD BE ON THE LOOKOUT FOR THESVE STORMS UNTIL 530 PM CDT. STAY TUNED TO YOUR LOCAL TV AND RADIO STATION FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. BUSS
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 8:00 AM CDT | Severe Thunderstorm Warning | FSD | Mellette | 45 min |
| Jun 29, 8:50 AM CDT | Severe Thunderstorm Warning | FSD | Mellette | 40 min |
| Jun 29, 8:57 AM CDT | Severe Thunderstorm Warning | FSD | Mellette | 33 min |
| Jun 29, 9:30 AM CDT | Severe Thunderstorm Warning | FSD | Mellette | 45 min |
| Jun 29, 10:19 AM CDT | Severe Thunderstorm Warning | FSD | Tripp | 41 min |
| Jun 29, 10:57 AM CDT | Severe Thunderstorm Warning | FSD | Tripp | 24 min |
| Jun 29, 11:46 AM CDT | Severe Thunderstorm Warning | FSD | Brule | 44 min |
| Jun 29, 1:07 PM CDT | Severe Thunderstorm Warning | FSD | McCook | 38 min |
| Jun 29, 1:38 PM CDT | Severe Thunderstorm Warning | FSD | Hanson | 37 min |
| Jun 29, 1:58 PM CDT | Severe Thunderstorm Warning | FSD | Lake | 32 min |
| Jun 29, 2:10 PM CDT | Severe Thunderstorm Warning | FSD | McCook | 50 min |
| Jun 29, 2:38 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha, Moody | 37 min |
| Jun 29, 3:30 PM CDT | Flash Flood Warning | FSD | McCook, Minnehaha | 3 hr |
| Jun 29, 3:49 PM CDT | Flash Flood Warning | FSD | Moody | 3 hr |
| Jun 29, 4:32 PM CDT | Tornado Warning | FSD | Tripp | 28 min |
| Jun 29, 6:30 PM CDT | Flash Flood Warning | FSD | Minnehaha, Moody | 3 hr |
| Jun 29, 6:30 PM CDT | Flash Flood Warning | FSD | McCook | 3 hr |
| Jun 29, 6:41 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix | 28 min |
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.