Alert archive / South Dakota / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 5, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at May 22, 1990, 5:38 PM CDT for Day County, South Dakota. It was in force for 67 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, 5:38 PM CDT (22:38 UTC)
- Expired
- May 22, 1990, 6:45 PM CDT
- In force
- 67 min
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
County Day 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, 5:45 PM CDT | Hail 1.25 | Day, SD | |
| May 22, 6:10 PM CDT | Hail 1 | Day, 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 12:00Z, 10.6 hours before the alert went out and 81 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
- 28 J/kg
- Mixed-layer CIN
- -216 J/kg
- Mixed-layer LCL
- 872 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, May 22, 4:03 PM CDT, 1 hour 35 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, 1 hour 25 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.
KEEFEThe office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 22, 3:18 PM CDT | Tornado Warning | ABR | Brown | 27 min |
| May 22, 5:38 PM CDT | Severe Thunderstorm Warning | ABR | Marshall | 22 min |
| May 22, 6:24 PM CDT | Severe Thunderstorm Warning | ABR | Day | 36 min |
| May 22, 6:45 PM CDT | Severe Thunderstorm Warning | ABR | Grant | 60 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.