Alert archive / South Dakota / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 8, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at May 22, 1990, 7:11 PM CDT for Codington County, Grant County, South Dakota. It was in force for 64 min. 2 reports 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
- May 22, 1990, 7:11 PM CDT (00:11 UTC)
- Expired
- May 22, 1990, 8:15 PM CDT
- In force
- 64 min
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
Counties Codington County, SD, Grant County, SD
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 22, 7:25 PM CDT | Hail 1.75 | Codington, SD | |
| May 22, 8:20 PM CDT | Hail 0.75 | Codington, 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, 0.2 hours before the alert went out and 113 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
- 962 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 1589 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.9
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KHON 230011
SVRHON
SDC029-051-230115-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HURON SD
711 PM CDT TUE MAY 22 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 815 PM CDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE EAST CENTRAL PART OF SOUTH DAKOTA
EXTREME NORTHEAST CODINGTON...
IN THE NORTHEAST PART OF SOUTH DAKOTA
SOUTHWEST GRANT...
SOME OF THE CITIES INCLUDED IN THIS WARNING ARE SOUTH SHORE AND
TWIN BROOKS.
AT 705 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 25 MILES NORTH
OF WATERTOWN MOVING SOUTHEAST AT 40 MILES AN HOUR.
IF YOU ARE IN THE PATH OF THIS STORM..YOU SHOULD GET TO A REINFORCED
SHELTER. A SEVERE THUNDERSTORM PRODUCES ANY OR ALL OF THE FOLLOWING...
WIND GUSTS OF 60 MPH OR HIGHER...HAIL 3/4 INCH OR LARGER...AND HEAVY
RAIN THAT CAN FLOOD LOW LYING AREAS RAPIDLY.
SPRINGERWhat 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, May 22, 4:03 PM CDT, 3 hours 8 minutes before
SDZ004-005-222200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 403 PM CDT TUE MAY 22 1990 ...SEVERE THUNDERSTORM WATCH UNTIL 9 PM CDT FOR PARTS OF EASTRN SD... AT 400 PM CDT RADAR INDICATED INTENSE THUNDERSTORMS WITH VERY HEAVY RAIN WERE MOVING SOUTH INTO MARSHALL COUNTY NEAR BRITTON...45 MILES NORTHEAST OF ABERDEEN...MOVING SOUTH AT AROUND 10 MPH. IF YOU LIVE IN MARSHALL COUNTY YOU SHOULD BE ALERT TO THE WEATHER AS THESE SVTORMS MOVE PAST. KEEFE
Local storm report, May 22, 4:13 PM CDT, 2 hours 58 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
412 PM CDT TUE MAY 22 1990
STORM DATA FOR MAY 22 1990
TIME COUNTY..LOCATION CHARACTER OF STORM..DAMAGE
.........................h..............................................
310 PM CDT BROWN COUNTY..ABERDEEN FUNNEL CLOUD REPORTED BY
CIVIL DEFENSE DIRECTOR.
KEEFELocal storm report, May 22, 7:04 PM CDT, 7 minutes before
STORM REPORT NATIONAL WEATHER SERVICE ABERDEEN SD 705 PM CDT TUE MAY 22 1990 STORM DATA FOR MAY 22 1990 TIME COUNTY..LOCATION CHARACTER OF STORM..DAMAGE ....................................................................... 535 PM CDT MARSHALL..LANGFORD 1 INCH HAIL 545 PM CDT DAY..11/2 E PIERPONT 11/4 INCH HAIL 610 PM CDT DAY..7E PIERPONT 1 INCH HAIL 625 PM CDT DAY..WEBSTER 1/4-1/2 INCH HAIL 655 PM CDT DAY..WEBSTER .80 RAIN 655 PM CDT DAY..UNKNOWN WATER OVER ROAD IN 2 PLACES KEEFE
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 22, 8:00 PM CDT | Severe Thunderstorm Warning | ABR | Deuel, Grant | 45 min |
| May 22, 8:20 PM CDT | Severe Thunderstorm Warning | ABR | Codington, Deuel | 55 min |
| May 22, 9:18 PM CDT | Severe Thunderstorm Warning | ABR | Codington | 57 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.