Alert archive / Iowa / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 22, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 15, 1992, 9:30 PM CDT for Lyon County, Iowa; Nobles County, Minnesota. It was in force for 45 min.
The area
The counties it named.
The facts
- Issued
- Jun 15, 1992, 9:30 PM CDT (02:30 UTC)
- Expired
- Jun 15, 1992, 10:15 PM CDT
- In force
- 45 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
Counties Lyon County, IA, Nobles County, MN
The nearest sounding before it
Minneapolis, MN (KSTC), launched 00:00Z, 2.5 hours before the alert went out and 240 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
- 3 J/kg
- Mixed-layer CIN
- -395 J/kg
- Mixed-layer LCL
- 1187 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 198 m²/s²
- 0-3 km storm-relative helicity
- 323 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFSD 160231 SVRFSD IAC119-MNC105-160315- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 930 PM CDT MON JUN 15 1992 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1015 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIESS... IN NORTHWEST IOWA ...LYON COUNTY IN SOUTHWEST MINNESOTA ...NOBLES COUNTY SOME OF THE CITIES WHICH THIS SEVERE THUNDERSTORM WILL THREATEN INCLUDE GEORGE AND LESTER IOWA AND ADRIAN MINNESOTA. AT 925 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 30 MILES SOUTHWEST OF WORTHINGTON MINNESOTA NEAR GEORGE IOWA MOVING NORTH AT 35 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. 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. UMLAND
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 15, 5:00 PM CDT, 4 hours 30 minutes before
SDZ010-011-016-162155- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HURON SD 455 PM CDT MON JUN 15 1992 AT 455 PM CDT...SCATTERED THUNDERSTORMS CONTINUED OVER CENTRAL AND EAST CENTRAL SOUTH DAKOTA...WITH THE STRONGEST THUNDERSTORMS OVER SOUTH CENTRAL HAND COUNTY. OTHER STRONG THUNDERSTORMS WERE LOCATED 5 MILES SOUTHEAST OF HURON...OVER FAULKTON...5 MILES NORTHEAST OF WESSINGTON...AND 10 MILES SOUTHEAST OF AGAR. MOVEMENT WAS NORTH AT 25 MILES AN HOUR. THE THUNDERSTORMS WERE EXPECTED TO REMAIN BELOW SEVERE LEVELS FOR THE TIME BEING...HOWEVER IF THREATENING WEATHER APPROACHES...BE READY TO TAKE SHELTER. STOREY
Special weather statement, Jun 15, 5:26 PM CDT, 4 hours 4 minutes before
SDZ012-017-108-019-020-152330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 425 PM CDT MON JUN 15 1992 ...A SEVERE THUNDERSTORM WATCH CONTINUES UNTIL 10 PM CDT FOR CENTRAL AND NORTHEAST SOUTH DAKOTA... THE EAST CENTRAL BORDER AREA OF SOUTH DAKOTA INCLUDING BROOKINGS... MADISON...AND FLANDREAU REMAIN UNDER A SEVERE THUNDERSTORM WATCH UNTIL 10 PM CDT. THUNDERSTORMS WERE OCCURRING TO THE NORTHWEST OF THIS AREA AND A NORTHWARD MOVEMENT WILL KEEP THEM OUT OF THE EXTREME EAST CENTRAL. THUNDERSTORMS HAD DEVELOPED AFTER 5 PM IN HUTCHINSON AND DOUGLAS COUNTIES INCLUDING ARMOUR...PARKSTON AND TRIPP. THE ATMOSPHERE IS VERY UNSTABLE AND RAPID DEVELOPMENT OF THUNDERSTORMS WILL OCCUR DURING THE EVENING. PEOPLE IN EASTERN SOUTH DAKOTA NEED TO BE WATCHFULL THIS EVENING. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS TO DEVELOP. IF YOU OBSERVE A THUNDERSTORM APPROACHING YOUR AREA...SEEK SHELTER IMMEDIATELY INSIDE A REINFORECED BUILDING. UMLAND
Special weather statement, Jun 15, 5:55 PM CDT, 3 hours 35 minutes before
SDZ012-017-108-019-020-152330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 553 PM CDT MON JUN 15 1992 ...A SEVERE THUNDERSTORM WATCH CONTINUES UNTIL 10 PM CDT FOR CENTRAL AND NORTHEAST SOUTH DAKOTA... THE EAST CENTRAL BORDER AREA OF SOUTH DAKOTA INCLUDING BROOKINGS... MADISON...AND FLANDREAU REMAIN UNDER A SEVERE THUNDERSTORM WATCH UNTIL 10 PM CDT. STRONG THUNDERSTORMS WERE OCCURRING TO THE NORTHWEST OF EXTREME EAST CENTRAL SOUTH DAKOTA AND A NORTHWARD MOVEMENT WILL KEEP THESE THUNDERSTORMS OUT OF THE EXTREME EAST CENTRAL. HOWEVER A STRONG THUNDERSTORM WAS DEVELOPING 20 MILES NORTHWEST OF YANKTON NEAR SCOTLAND AND IS EXPECTED TO MOVE NORTH AT 20 MPH. VERY HEAVY RAIN...SMALL HAIL AND STRONG GUSTY WINDS AROUND 35 MPH CAN BE EXPECTED WITH THIS THUNDERSTORM. THE BRUNT OF THIS STORM JUST WEST OF SCOTLAND AT 5 50 PM CDT IN EXTREME NORTHERN BON HOMME COUNTY IS EXPECTED TO MOVE INTO SOUTH CENTRAL HUTCHISON COUNTY B7Y 6 10 PM JUST EAST OF TRIPP. PERSONS IN NORTHERN BON HOMME COUNTY AND SOUTHERN HUTCHISON COUNTIES ARE ADVISED TO KEEP ALERT AND BE READY TO TAKE SHELTER IN A REINFORCED BUILDING SHOULD THREATENING WEATHER APPROACH YOUR AREA. BIER
Special weather statement, Jun 15, 6:18 PM CDT, 3 hours 12 minutes before
SDZ012-017-108-019-020-152330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 618 PM CDT MON JUN 15 1992 ...A SEVERE THUNDERSTORM WATCH CONTINUES UNTIL 10 PM CDT FOR CENTRAL AND NORTHEAST SOUTH DAKOTA... A STRONG THUNDERSTORM 30 MILES NORTHWEST OF YANKTON NEAR OLIVET WAS MOVING NORTHWARD ACROSS CENTRAL HUTICHISON COUNTY AT 25 MPH. VERY HEAVY RAIN...SMALL HAIL AND STRONG GUSTY WINDS AROUND 35 MPH CAN BE EXPECTED WITH THIS THUNDERSTORM. THE BRUNT OF THIS STORM JUST WEST OF OLIVET AT 615 PM CDT IS EXPECTED TO REACH THE TOWNS OF WOLF CREEK AND TSCHETTER COLONY BY 625 PM AND BE NEAR THE CLAYTON AND MILLTOWN AREAS BY 630 PM CDT. PERSONS IN HUTCHISON COUNTY...ESPECIALLY CENTRAL AND NORTH CENTRAL PARTS OF THE COUNTY ARE ADVISED TO KEEP ALERT AND BE READY TO TAKE SHELTER IN A REINFORCED BUILDING SHOULD THREATENING WEATHER APPROACH YOUR AREA. BIER
Special weather statement, Jun 15, 6:35 PM CDT, 2 hours 55 minutes before
SDZ012-017-018-019-020-152330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 633 PM CDT MON JUN 15 1992 ...A SEVERE THUNDERSTORM WATCH CONTINUES UNTIL 10 PM CDT FOR CENTRAL AND NORTHEAST SOUTH DAKOTA... AT 630 PM AN AREA OF STRONG THUNDERSTORMS WAS DEVELOPING 25 TO 50 MPH NORTH OF YANKTON IN AN AREA APPROXIMATELY BOUNDED BY THE TOWNS OF ALEXANDRIA IN CENTRAL HANSON COUNTY...CLAYTON IN NORTHEAST HUTCHISON AND MARION IN NORTHWEST TURNER COUNTY. THE STORMS WERE MOVING TO THE NORTH AT 25 MPH AND ARE CAPABLE OF PRODUCING VERY HEAVY RAIN...PEA SIZED HAIL AND GUSTY WINDS AROUND 35 MPH. PERSONS IN NORTHEAST HUTCHISON...NORTHWEST TURNER...HANSON AND MCCOOK COUNTIES OF SOUTHE]AST SOUTH DAKOTA SHOULD REMAIN ALERT TO THE POSSIBILITY OF SEVERE WEATHER AND BE PREPARED TO TAKE SHELTER IN A REINFORCED BUILDING SHOULD THREATENING WEATHER APPROACH YOUR AREA. BIER
Special weather statement, Jun 15, 8:38 PM CDT, 52 minutes before
IAZ001-004-005-040830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 838 PM CDT MON JUN 15 1992 ...A TORNADO WATCH IS IN EFFECT FOR THE SIOUXLAND AREA UNTIL 1 AM CDT... NO THUNDERSTORMS WERE LOCATED IN THE SIOUXLAND AREA AT 835 PM.... HOWEVER STRONG THUNDERSTORMS WERE LOCATED ACROSS NORTHEAST NEBRASKA. SHOWERS WERE ALSO LOCATED 25 MILES WEST OF SIOUX CITY. MOVEMENT WAS NORTHEAST AT 30 MILES AN HOUR. STRONG STORMS WILL BE POSSIBLE ACROSS THE SIOUXLAND AREA THIS EVENING. IF THREATENING APPROACHES...YOU SHOULD MOVE TO A SAFE PLACE QUICKLY. HOPPES
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 9:55 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 50 min |
| Jun 15, 10:51 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Osceola | 54 min |
| Jun 15, 9:49 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 26 min |
| Jun 15, 9:52 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 23 min |
| Jun 15, 10:21 PM CDT | Severe Thunderstorm Warning | FSD | Jackson | 54 min |
| Jun 16, 4:54 PM CDT | Severe Thunderstorm Warning | FSD | Pipestone | 36 min |
| Jun 16, 5:03 PM CDT | Tornado Warning | FSD | Murray | 27 min |
| Jun 16, 5:27 PM CDT | Tornado Warning | FSD | Murray | 48 min |
| Jun 16, 6:13 PM CDT | Tornado Warning | FSD | Lyon | 32 min |
| Jun 16, 6:44 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 46 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1992Severe Thunderstorm Warnings in Minnesota, 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.