Alert archive / South Dakota / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 38, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 12, 1994, 5:20 PM CDT for Minnehaha County, South Dakota. It was in force for 40 min.
The area
The counties it named.
The facts
- Issued
- Jun 12, 1994, 5:20 PM CDT (22:20 UTC)
- Expired
- Jun 12, 1994, 6:00 PM CDT
- In force
- 40 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County Minnehaha County, SD
The nearest sounding before it
Aberdeen, SD (KHON), launched 12:00Z, 10.3 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1741 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 147 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 KFSD 122221 RRA SVRFSD SDC099-122300- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 520 PM CDT SUN JUN 12 1994 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 600 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST SOUTH DAKOTA ...NORTHERN MINNEHAHA COUNTY AT 516 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 20 MILES NORTHWEST OF SIOUX FALLS MOVING EAST AT 20 MPH. THIS STORM WILL AFFECT THE CITIES OF COLTON BY 530 PM AND BALTIC BY 545 PM. IF YOU ARE IN THE PATH OF THIS STORM...YOU SHOULD GET TO A REINFORCED SHELTER. A SEVERE THUNDERSTORM PRODUCES WINDS IN EXCESS OF 60 MPH...HAIL 3/4 INCH OR LARGER...DEADLY LIGHTNING...AND HEAVY RAIN THAT CAN QUICKLY FLOOD A LOW LYING AREA. 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. JANSEN
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, Jun 12, 4:10 PM CDT, 1 hour 10 minutes before
IAZ021-032-043-013-020-031-NEZ014-013-015-SDZ071-122200- SPECIAL WEATHER STATEMENT...CORRECTION OF TYPO NATIONAL WEATHER SERVICE SIOUX CITY IA 410 PM CDT SUN JUN 12 1994 ...THE STRONG THUNDERSTORM EAST OF SIOUX CITY HAS MOVED OUT OF THE AREA... THE STRONG THUNDERSTORM THAT AFFECTTED HOLSTEIN...GALVA AND QUIMBY IOWA HAS MOVED EAST INTO SAC COUNTY. THUNDERSTORMS WILL CONTINUE TO AFFECT AREAS EAST OF A LINE FROM CHEROKEE TO PRIMGHAR TO HARTLEY IOWA THROUGH 445 PM. BRIEF DOWNPOURS WILL FALL IN THESE STORMS. A TORNADO WATCH REMAINS IN EFFECT UNTIL 10 PM FOR ALL BUT THURSTON COUNTY IN NEBRASKA. MICHELS
Special weather statement, Jun 12, 4:40 PM CDT, 40 minutes before
SDZ037-038-052-122235- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE HURON SD 440 PM CDT SUN JUN 12 1994 ...TORNADO WATCH FOR MUCH OD CENTRAL AND EASTERN SOUTH DAKOTA UNTIL 1000 PM CDT... AT 425 PM CDT...AN ISOLATED SEVERE THUNDERSTORM CONTINUED OVER A SMALL PART OF EAST CENTRAL SOUTH DAKOTA. THIS STORM WAS LOCATED 10 MILES SOUTHWEST OF WESSINGTON AND INDICATED A POSSIBLE TORNADO AT 405 PM. AT 437 PM A WEATHER SPOTTER IN SOUTHERN HAND COUNTY REPORTED GOLF BALL SIZE HAIL AND AN ESTIMATED 60 MPH WIND WITH THIS STORM. PERSONS IN SOUTHWEST BEADLE COUNTY SHOULD SEEK SHELTER IMMEDIATELY AS THIS IS A DANGEROUS STORM. MOVEMENT WAS SOUTHEAST AT 35 MILES AN HOUR. PFEIFFER
Special weather statement, Jun 12, 4:42 PM CDT, 38 minutes before
SDZ037-038-052-122235- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE HURON SD 440 PM CDT SUN JUN 12 1994 ...TORNADO WATCH FOR MUCH OD CENTRAL AND EASTERN SOUTH DAKOTA UNTIL 1000 PM CDT... AT 425 PM CDT...AN ISOLATED SEVERE THUNDERSTORM CONTINUED OVER A SMALL PART OF EAST CENTRAL SOUTH DAKOTA. THIS STORM WAS LOCATED 10 MILES SOUTHWEST OF WESSINGTON AND INDICATED A POSSIBLE TORNADO AT 405 PM. AT 437 PM A WEATHER SPOTTER IN SOUTHERN HAND COUNTY REPORTED GOLF BALL SIZE HAIL AND AN ESTIMATED 60 MPH WIND WITH THIS STORM. PERSONS IN SOUTHWEST BEADLE COUNTY SHOULD SEEK SHELTER IMMEDIATELY AS THIS IS A DANGEROUS STORM. MOVEMENT WAS SOUTHEAST AT 35 MILES AN HOUR. PF&EIFFER
Special weather statement, Jun 12, 4:58 PM CDT, 22 minutes before
SDZ040-122300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 457 PM CDT SUN JUN 12 1994 ...STRONG THUNDERSTORM MOVING TOWARDS BROOKINGS COUNTY OF SOUTH DAKOTA... AT 455 PM CDT RADAR INDICATED A STRONG THUNDERSTORM 35 MILES NORTHWEST OF BROOKINGS SOUTH DAKOTA. THIS STORM WAS MOVING SOUTHEAST AT 25 MPH AND WILL BEGIN TO AFFECT NORTHERN BROOKINGS COUNTY BY 530 PM CDT. THIS STORM WILL PRODUCE SMALL HAIL...GUSTY WINDS AND HEAVYp RAINS. PERSONS IN BROOKINGS COUNTY SHOULD KEEP ABREAST OF THIS STORM AND BE PREPARED TO TAKE ACTION IF A WARNING IS ISSUED. A TORNADO WATCH IS ALSO IN EFFECT UNTIL 10 PM CDT.
Special weather statement, Jun 12, 5:08 PM CDT, 12 minutes before
MNZ071-072-080-081-089-090-097-098-122310- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 506 PM CDT SUN JUN 12 1994 ...STRONG THUNDERSTORMS MOVE INTO SOUTHWEST MINNESOTA... AT 505 PM CDT RADAR INDICATED THAT STRONG THUNDERSTORMS MOVED INTO SOUTHWEST MINNESOTA. THE STRONGEST STORMS WERE LOCATED ACROSS PIPESTONE AND ROCK COUNTIES. STORMS WERE MOVING SOUTHEAST AT 20 MILES AN HOUR. THESE STORMS MAY PRODUCE BRIEF HEAVY RAIN...GUSTY WINDS...AND SMALL HAIL. PEOPLE IN PIPESTONE...MARSHALL...WORTHINGTON...AND OTHER TOWNS IN SOUTHWEST MINNESOTA SHOULD MONITOR NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR THE LATEST ON THESE STORMS OVER THE NEXT FEW HOURS. MENTZER
Special weather statement, Jun 12, 5:16 PM CDT, 4 minutes before
SDZ062-122320- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 516 PM CDT SUN JUN 12 1994 ...STRONG THUNDERSTORM DEVELOPING OVER NORTHWEST MINNEHAHA COUNTY... AT 510 PM CDT RADAR SHOWED A STRONG THUNDERSTORM OVER NORTHWEST MINNEHAHA COUNTY OF SOUTHEAST SOUTH DAKOTA. THE STORM WAS LOCATED 20 MILES NORTHWEST OF SIOUX FALLS NEAR COLTON. MOVEMENT WAS TO THE EAST AT 20 MPH. THIS STORM WILL AFFECT NORTHERN MINNEHAHA COUNTY THROUGH 545 PM CDT. SMALL HAIL...HEAVY RAINS AND GUSTY WINDS CAN BE EXPECTED WITH THIS STORM. PERSONS IN NORTHERN MINNEHAHA COUNTY SHOULD KEEP ABREAST OF THIS STORM AND BE PREPARED TO TAKE ACTION IF A WARNING IS ISSUED. A TORNADO WATCH IS ALSO IN EFFECT UNTIL 10 PM CDT.
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 5:40 PM CDT | Tornado Warning | FSD | Minnehaha | 35 min |
| Jun 12, 6:02 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 57 min |
| Jun 12, 6:23 PM CDT | Severe Thunderstorm Warning | FSD | Lake | 36 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 1994Every severe thunderstorm warning in 1994
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.