Alert archive / South Dakota / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 88, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Aug 9, 1992, 11:21 PM CDT for Clay County, Yankton County, South Dakota. It was in force for 54 min.
The area
The counties it named.
The facts
- Issued
- Aug 9, 1992, 11:21 PM CDT (04:21 UTC)
- Expired
- Aug 10, 1992, 12:15 AM CDT
- In force
- 54 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
Counties Clay County, SD, Yankton County, SD
The nearest sounding before it
Omaha, NE (KOVN), launched 00:00Z, 4.4 hours before the alert went out and 195 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
- 3752 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 1010 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFSD 100422 SVRFSD SDC027-135-100515- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 1121 PM CDT SUN AUG 9 1992 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1215 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES... IN SOUTHEAST SOUTH DAKOTA ...CLAY COUNTY...YANKTON COUNTY AT 1120 PM CDT RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM WHICH WILL MOVE INTO NORTHERN YANKTON AND NORTHERN CLAY COUNTIES BY 1125 PM CDT. THE STORM WILL MOVE OVER THE TOWNS OF WAKONDA AND VOLIN BY 1130 PM CDT. THIS STORM HAS A HISTORY OF PRODUCING HAIL...STRONG WINDS... AND FREQUENT LIGHTNING. THIS IS A DANGEROUS STORM. TAKE COVER IMMEDIATELY. THIS WARNING INCLUDES THE ADJACENT WATERS OF THE MISSOURI RIVER. PEOPLE NEAR THE STORM SHOULD MOVE INSIDE A STRONG BUILDING AWAY FROM WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNTIL THE STORM HAS PASSED. MOTORISTS...DON'T DRIVE INTO FLOODED CROSSINGS. MENTZER
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, Aug 9, 8:05 PM CDT, 3 hours 16 minutes before
IAZ020-021-031-032-043-NEZ094>096-SDZ066-100200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 804 PM CDT SUN AUG 9 1992 ...TORNADO WATCH FOR OBRIEN...PLYMOUTH...AND UNION COUNTIES UNTIL 2 AM MONDAY MORNING... AT 800 PM CDT NO PRECIPITATION WAS LOCATED IN THE SIOUXLAND AREA. THERE IS THE POSSIBILITY THAT SEVERE THUNDERSTORMS MAY DEVELOP IN THE AREA THAT COULD PRODUCE LARGE HAIL...DAMAGING WINDS...AND TORNADOES. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE NEWS MEDIA FOR UPDATES CONCERNING THE SEVERE WEATHER THREAT. IRELAND
Special weather statement, Aug 9, 9:01 PM CDT, 2 hours 20 minutes before
IAZ020-021-031-032-043-NEZ094>096-SDZ066-100300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 900 PM CDT SUN AUG 9 1992 ...TORNADO WATCH FOR OBRIEN...PLYMOUTH...AND UNION COUNTIES UN
Special weather statement, Aug 9, 10:05 PM CDT, 1 hour 16 minutes before
IAZ020-021-031-032-043-NEZ094>096-SDZ066-100400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 1003 PM CDT SUN AUG 9 1992 ...TORNADO WATCH FOR OBRIEN...PLYMOUTH...AND UNION COUNTIES UNTIL 2 AM MONDAY MORNING... AT 1000 PM CDT NO PRECIPITATION WAS LOCATED IN THE SIOUXLAND AREA. THUNDERSTORMS IN SOUTHEAST SOUTH DAKOTA WERE MOVING SOUTH A SHOULD MOVE INTO THE NORTHERN SECTIONS OF THE SIOUXLAND AREA BETWEEN 11 PM AND MIDNIGHT. | THE STORMS IN SOUTH DAKOTA HAVE HAD A HISTORY OF PRODUCING SEVERE WEATHER. PEOPLE IN THE NORTHERN SECTIONS OF THE SIOUXLAND AREA SHOULD BE PREPARED TO SEEK SHELTER WHEN THE STORMS APPROACH OR IF A WARNING IS ISSUED. IRELAND
Special weather statement, Aug 9, 10:09 PM CDT, 1 hour 12 minutes before
IAZ020-021-031-032-043-NEZ094>096-SDZ066-100400- SPECIAL WEATHER STATEMENT...CORRECTED FOR TYPO NATIONAL WEATHER SERVICE SIOUX CITY IA 1007 PM CDT SUN AUG 9 1992 ...TORNADO WATCH FOR OBRIEN...PLYMOUTH...AND UNION COUNTIES UNTIL 2 AM MONDAY MORNING... AT 1000 PM CDT NO PRECIPITATION WAS LOCATED IN THE SIOUXLAND AREA. THUNDERSTORMS IN SOUTHEAST SOUTH DAKOTA WERE MOVING SOUTH AND SHOULD MOVE INTO THE NORTHERN SECTIONS OF THE SIOUXLAND AREA BETWEEN 11 PM AND MIDNIGHT. THE STORMS IN SOUTH DAKOTA HAVE HAD A HISTORY OF PRODUCING SEVERE WEATHER. PEOPLE IN THE NORTHERN SECTIONS OF THE SIOUXLAND AREA SHOULD BE PREPARED TO SEEK SHELTER WHEN THE STORMS APPROACH OR IF A WARNING IS ISSUED. IRELAND
Special weather statement, Aug 9, 11:02 PM CDT, 19 minutes before
IAZ020-021-031-032-043-NEZ094>096-SDZ066-100500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 1101 PM CDT SUN AUG 9 1992 ...TORNADO WATCH FOR OBRIEN...PLYMOUTH...AND UNION COUNTIES UNTIL 2 AM MONDAY MORNING... AT 1100 PM CDT NO PRECIPITATION WAS LOCATED IN THE SIOUXLAND AREA. THUNDERSTORMS IN SOUTHEAST SOUTH DAKOTA WERE MOVING SOUTHWEST AND WILL MOVE INTO THE BERESFORD SOUTH DAKOTA AREA BEFORE 1130 PM. THE STORMS IN SOUTH DAKOTA HAVE HAD A HISTORY OF PRODUCING SEVERE WEATHER. PEOPLE IN THE NORTHERN SECTIONS OF THE SIOUXLAND AREA SHOULD BE PREPARED TO SEEK SHELTER WHEN THE STORMS APPROACH OR IF A WARNING IS ISSUED. IRELAND
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 7:41 PM CDT | Tornado Warning | FSD | Brookings | 34 min |
| Aug 9, 8:02 PM CDT | Tornado Warning | FSD | Moody | 43 min |
| Aug 9, 8:40 PM CDT | Tornado Warning | FSD | Moody | 50 min |
| Aug 9, 8:50 PM CDT | Tornado Warning | FSD | Lake | 25 min |
| Aug 9, 9:28 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 47 min |
| Aug 9, 9:46 PM CDT | Severe Thunderstorm Warning | FSD | McCook, Minnehaha | 44 min |
| Aug 9, 10:20 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Turner | 40 min |
| Aug 9, 10:38 PM CDT | Tornado Warning | FSD | Turner | 37 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 1992Every severe thunderstorm warning in 1992
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.