Alert archive / South Dakota / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 66, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 24, 1994, 5:21 PM CDT for Douglas County, South Dakota. It was in force for 54 min.
The area
The counties it named.
The facts
- Issued
- Jun 24, 1994, 5:21 PM CDT (22:21 UTC)
- Expired
- Jun 24, 1994, 6:15 PM CDT
- In force
- 54 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County Douglas County, SD
The nearest sounding before it
Aberdeen, SD (KHON), launched 12:00Z, 10.4 hours before the alert went out and 168 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
- 27 J/kg
- Mixed-layer CIN
- -347 J/kg
- Mixed-layer LCL
- 1530 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS1 KFSD 242221 RRA SVRFSD SDC003-043-242315- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 521 PM CDT FRI JUN 24 1994 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 615 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL SOUTH DAKOTA ...AURORA COUNTY...DOUGLAS COUNTY AT 520 PM CDT...WEATHER SERVICE RADAR INDICATED SEVERE THUNDERSTORMS 5 MILES SOUTH OF STICKNEY IN EXTREME NORTHERN DOUGLAS COUNTY...OR 25 MILES SOUTHWEST OF MITCHELL...AND ALSO 10 MILES WEST OF LETCHER...OR 25 MILES NORTHWEST OF MITCHELL IN NORTHEASTERN AURORA COUNTY. THESE STORMS WERE MOVING TO THE SOUTH AT 35 TO 40 MPH. 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. MG
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 24, 3:25 PM CDT, 1 hour 56 minutes before
SDZ019>023-037>ACOMMS:XMIT 1
Special weather statement, Jun 24, 3:25 PM CDT, 1 hour 56 minutes before
SDZ019>023-037>ACOMMS:XMIT 1
Special weather statement, Jun 24, 5:12 PM CDT, 9 minutes before
SDC003-009-011-015-023-027-035-043-053-061-067-242315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 509 PM CDT FRI JUN 24 1994 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR EASTERN SOUTH DAKOTA UNTIL 1000 PM CDT... AT 505 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS MOVING THROUGH EASTERN SOUTH DAKOTA. THE STRONGEST STORM WAS LOCATED 5 MILES SOUTHEAST OF WESSINGTON SPRINGS...OR 30 MILES NORTHWEST OF MITCHELL...WITH ANOTHER STRONG STORM 10 MILES NORTH OF HURO THESE STORMS WERE MOVING TO THE SOUTH AT 35-40 MPH. PERSONS IN THE PATH OF THESE STRONGER STORMS CAN EXPECT BRIEF HEAVY RAINFALL...STRONG GUSTY WINDS...DANGEROUS LIGHTNING...AND XPOSSIBLY SMALL HAIL. STAY TUNED TO NOAA WEATEHR RADIO...OR YOUR LOCAL RADIO OR T.V. STATIONS FOR THE LATEST WEATHER INFORMATION. MG
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 5:21 PM CDT | Severe Thunderstorm Warning | FSD | Aurora | 38 min |
| Jun 24, 6:04 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix | 26 min |
| Jun 24, 6:34 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix | 26 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.