Alert archive / South Dakota / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 50, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 16, 1990, 4:31 PM CDT for Yankton County, South Dakota. It was in force for 29 min.
The area
The counties it named.
The facts
- Issued
- Jun 16, 1990, 4:31 PM CDT (21:31 UTC)
- Expired
- Jun 16, 1990, 5:00 PM CDT
- In force
- 29 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County Yankton County, SD
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 9.5 hours before the alert went out and 206 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
- 3656 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 241 m²/s²
- 0-3 km storm-relative helicity
- 237 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 162131
SVRFSD
SDC135-162200-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
431 PM CDT SAT JUN 16 1990
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 500 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTHEAST SOUTH DAKOTA
...YANKTON
SOME CITIES INCLUDED IN THIS WARNING ARE...YANKTON...VOLIN AND
MAYFIELD.
AT 425 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 50 MILES SOUTHWEST
OF SIOUX FALLS NEAR YANKTON SOUTH DAKOTA. THE STROM WAS MOVING NORTH
NORTHEAST AT 30 MPH.
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.
THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE
OR NO ADVANCE WARNING SO BE ON THE LAOOKOUT.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 16, 3:18 PM CDT, 1 hour 13 minutes before
SDZALL-162115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 317 PM CDT SAT JUN 16 1990 ...TORNADO WATCH IN EFFECT FOR SOUTHCENTRAL AND SOUTHEAST SOUTH DAKOTA... AT 3 PM CDT SCATTERED THUNDERSTORMS WERE OCCURRING OVER CENTRAL SOUTH DAKOTA. OTHERWISE SKIES WERE MOSTLY CLOUDY ACROSS THE STATE AND TEMPERATURES RANGED FROM 60 AT BUFFALO TO 79 AT MITCHELL. THROUGH 5 PM CDT SCATTERED THUNDERSTORMS...POSSIBLY SEVERE...WILL CONTINUE TO DEVELOP CENTRAL AND EAST. OTHERWISE SKIES WILL REMAIN MOSTLY CLOUDY AND TEMPERATURES WILL CHANGE LITTLE.
Special weather statement, Jun 16, 3:19 PM CDT, 1 hour 12 minutes before
IAZ004-162120- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 318 PM CDT SAT JUN 16 1990 ...A FLASH FLOOD WATCH FOR NORTHEAST NEBRASKA AND NORTHWEST IOWA... ...A TORNADO WATCH FOR NORTHEAST NEBRASKA AND SOUTHEAST SOUTH DAKOTA UNTIL 9 PM CDT... AT 3:20 PM RADAR SHOWED A STORM THUNDERSTORM FROM 45 MILES WEST TO 40 MILES NORTHWEST OF SIOUX CITY. THIS THUNDERSTORM WAS MOVING TO. THE NORTHEAST AT 30 MPH. SCATTERED SHOWERS AND THUNDERSTORMS WERE ALSO DEVELOPING OVER WESTERN IOWA AND NORTHEAST NEBRASKA. THIS STORMS HAD INCREASED IN INTENSITY AND COVERAGE DURING THE PAST HOUR. A FLASH FLOOD WATCH MEANS FLOODING IS POSSIBLE IN AND NEAR THE WATCH AREA. PERSONS IN THE WATCH AREA SHOULD KEEP INFORMED AND BE READY FOR QUICK ACTION IF FLASH FLOODING IS OBSERVED OR A WARNING IS ISSUED. FREDERICK
Special weather statement, Jun 16, 3:42 PM CDT, 49 minutes before
SDZ003>005-010>012-014>020-170000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 340 PM CDT SAT JUN 16 1990 ...VOLATILE WEATHER SITUATION SHAPING UP FOR SOUTHERN AND EASTERN SOUTH DAKOTA LATE THIS AFTERNOON INTO THIS EVENING... HEAVY OR SEVERE THUNDERSTORMS SHOULD DEVELOP IN PARTS OF SOUTHERN AND EASTERN SOUTH DAKOTA THE REMAINDER OF THIS AFTERNOON AND EVENING. SINCE HEAVY RAINS HAVE OCCURRED IN THE NORTHEAST HALF OF THE STATE IN THE PAST 24 HOURS ANY ADDITIONAL HEAVY RAIN SHOULD CAUSE SOME LOCALIZED LOWLAND FLOODING. THE SHOWERS AND THUNDERSTORMS SHOULD TAPER OFF LATER TONIGHT AS A STRONG LOW PRESSURE SYSTEM MOVES EAST OVER THE STATE. THE RAIN WOULD BE VERY MUCH NEEDED IN PARTS OF SOUTHEAST SOUTH DAKOTA INCLUDING SIOUX FALLS. HOWEVER THERE IS ALSO A BETTER POSSIBILITY OF SEVERE THUNDERSTORMS IN THE SOUTHEAST THAN IN THE REMAINDER OF SOUTH DAKOTA TONIGHT. VERY HEAVY RAINS OCCURRED IN MUCH OF THE NORTHEAST HALF OF SOUTH DAKOTA IN THE PAST 24 HOURS. SOME AREAS HAVE RECEIVED OVER 5 INCHES WITH WIDESPREAD AMOUNTS OF 2 TO 3 INCHES REPORTED. THE FOLLOWING ARE SOME RAINFALL AMOUNTS IN THE PAST 24 HOURS ENDING AT 8 AM CDT... 5.60 INCHES...2 MILES SOUTH OF BADGER...KINGSBURY COUNTY 4.50 INCHES...2 MILES NORTH OF RELIANCE...LYMAN COUNTY 4.50 INCHES...7 MILES EAST OF BOWDLE...EDMUNDS COUNTY...OVER 12 INCHES FOR MONTH OF JUNE 4.33 INCHES...3 1/2 MILES NORTH OF MINA...EDMUNDS/BROWN COUNTY BORDER 4.00 INCHES...6 MILES NORTHEAST OF LAKE PRESTON...KINGSBURY COUNTY 3.60 INCHES...3 1/2 MILES NORTHEAST OF BADGER...KINGSBURY COUNTY 3.50 INCHES...13 MILES SOUTHEAST OF HURON...BEADLE COUNTY 3.40 INCHES...5 MILES NORTHWEST OF ARLINGTON...KINGSBURY COUNTY 3.40 INCHES...8 MILES EAST OF LEBANON...POTTER COUNTY 3.31 INCHES...6 MILES EAST OF MANSFIELD...BROWN COUNTY RYRHOLM
Special weather statement, Jun 16, 4:03 PM CDT, 28 minutes before
SDZ016-017-019-020-162200 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 403 PM CDT SAT JUN 16 1990 ...TORNADO WATCH IN EFFECT FOR SOUTHCENTRAL AND SOUTHEAST SOUTH DAKOTA... AT 4 PM CDT SCATTERED THUNDERSTORMS WITH VERY HEAVY RAIN HAD DEVELOPED IN SOUTHEAST SOUTH DAKOTA. THESE THUNDERSTORMS EXTENDED FROM NEAR MITCHELL TO NEAR YANKTON. MOVEMENT NORTHEAST AT 30 MILES AN HOUR. BERG
Special weather statement, Jun 16, 4:22 PM CDT, 9 minutes before
SDZ020-162200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 421 PM CDT SAT JUN 16 1990 ...THUNDERSTORM WITH VERY HEAVY RAIN JUST WEST OF YANKTON SOUTH DAKOTA... AT 417 PM CDT RADAR INDICATED A THUNDERSTORM WITH VERY HEAVY RAIN 50 MILES SOUTHWEST OF SIOUX FALLS OR JUST WEST OF YANKTON SOUTH DAKOTA. THIS STORM WAS MOVING NORTH NORTHEAST AT 30 MPH AND WILL AFFECT PERSONS IN YANKTON COUNTY THROUGH 5 PM CDT. SMALL HAIL...G6USTY WINDS AND BRIEF HEAVY RAINS CAN BE EXPECTED WITH THIS STORM.
Special weather statement, Jun 16, 4:24 PM CDT, 7 minutes before
IAZ004-162220- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 423 PM CDT SAT JUN 16 1990 ...A FLASH FLOOD WATCH FOR NORTHEAST NEBRASKA AND NORTHWEST IOWA TONIGHT... ...A TORNADO WATCH FOR NORTHEAST NEBRASKA AND SOUTHEAST SOUTH DAKOTA UNTIL 9 PM CDT... A FEW THUNDERSTORMS WERE ACROSS NORTHWEST NEBRASKA AND SOUTHEAST SOUTH DAKOTA THIS AFTERNOON. AT 4:18 PM CDT RADAR SHOWED A SEVERE THUNDERSTORM 60 MILES NORTHWEST OF SIOUX CITY. THE STORM WAS MOVING NORTHEAST AT 30 MPH. A FLASH FLOOD WATCH MEANS FLOODING IS POSSIBLE IN AND NEAR THE WATCH AREA. PEOPLE IN THE WATCH AREA SHOULD KEEP INFORMED AND BE READY FOR QUICK ACTION IF FLASH FLOODING IS OBSERVED OR A WARNING IS ISSUED. HOPPES
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 9:29 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Davison | 46 min |
| Jun 15, 10:27 PM CDT | Severe Thunderstorm Warning | FSD | Hanson | 33 min |
| Jun 15, 10:59 PM CDT | Severe Thunderstorm Warning | FSD | McCook | 31 min |
| Jun 15, 11:35 PM CDT | Severe Thunderstorm Warning | FSD | Lake | 25 min |
| Jun 16, 1:23 PM CDT | Severe Thunderstorm Warning | FSD | Mellette | 52 min |
| Jun 16, 5:21 PM CDT | Severe Thunderstorm Warning | FSD | Clay | 39 min |
| Jun 16, 5:46 PM CDT | Tornado Warning | FSD | Clay, Lincoln | 29 min |
| Jun 16, 5:56 PM CDT | Tornado Warning | FSD | Union | 34 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 1990Every severe thunderstorm warning in 1990
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.