Alert archive / South Dakota / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 85, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Aug 9, 1992, 9:28 PM CDT for Minnehaha County, South Dakota. It was in force for 47 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 9, 1992, 9:28 PM CDT (02:28 UTC)
- Expired
- Aug 9, 1992, 10:15 PM CDT
- In force
- 47 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County Minnehaha County, SD
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 9, 10:05 PM CDT | Hail 0.75 | Minnehaha, SD |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Aberdeen, SD (KHON), launched 00:00Z, 2.5 hours before the alert went out and 187 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
- 1762 J/kg
- Mixed-layer CIN
- -208 J/kg
- Mixed-layer LCL
- 1484 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 223 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFSD 100226 SVRFSD SDC099-100315- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 928 PM CDT SUN AUG 9 1992 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1015 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES... IN SOUTHEAST SOUTH DAKOTA ...NORTHERN MINNEHAHA COUNTY AT 925 PM CDT WEATHER RADAR INDICATED A SEVERE THUNDERSTORM ACROSS SOUTHERN MOODY COUNTY AND NORTHERN MINNEHAHA COUNTY. THIS STORM IS MOVING SOUTH AT 10 MILES AN HOUR AND WILL MOVE OVER DELL RAPIDS... COLTON...AND BALTIC. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING SO BE ON THE LOOKOUT. 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, 1 hour 23 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, 27 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
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, 9:46 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 |
| Aug 9, 11:21 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Yankton | 54 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.