Alert archive / South Dakota / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 154, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 26, 1990, 3:49 AM CDT for Campbell County, Walworth County, South Dakota. It was in force for 56 min. 1 report 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
- Aug 26, 1990, 3:49 AM CDT (08:49 UTC)
- Expired
- Aug 26, 1990, 4:45 AM CDT
- In force
- 56 min
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
Counties Campbell County, SD, Walworth 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 |
|---|---|---|---|
| Aug 26, 4:25 AM CDT | Thunderstorm Wind 50 | Walworth, 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
Bismarck Municip, ND (KBIS), launched 00:00Z, 8.8 hours before the alert went out and 140 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
- 2995 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1209 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 204 m²/s²
- Significant tornado parameter
- 2.2
- Supercell composite
- 12.2
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
Local storm report, Aug 25, 11:11 PM CDT, 4 hours 38 minutes before
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</html>The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 7:06 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Sully | 54 min |
| Aug 25, 7:12 PM CDT | Severe Thunderstorm Warning | ABR | Sully | 63 min |
| Aug 25, 7:38 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds | 67 min |
| Aug 25, 7:52 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Hyde | 68 min |
| Aug 25, 8:04 PM CDT | Tornado Warning | ABR | Hughes | 26 min |
| Aug 25, 8:49 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds | 31 min |
| Aug 25, 8:53 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 52 min |
| Aug 25, 8:59 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Spink | 41 min |
| Aug 25, 9:17 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Day | 33 min |
| Aug 25, 9:33 PM CDT | Severe Thunderstorm Warning | ABR | Campbell | 57 min |
| Aug 25, 9:43 PM CDT | Severe Thunderstorm Warning | ABR | Hand, Hyde | 62 min |
| Aug 25, 9:52 PM CDT | Severe Thunderstorm Warning | ABR | Codington, Hamlin | 68 min |
| Aug 25, 9:54 PM CDT | Severe Thunderstorm Warning | ABR | Day | 36 min |
| Aug 25, 9:57 PM CDT | Severe Thunderstorm Warning | ABR | Hyde | 63 min |
| Aug 25, 10:35 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, McPherson | 25 min |
| Aug 26, 2:43 AM CDT | Severe Thunderstorm Warning | ABR | Corson | 62 min |
| Aug 26, 2:54 AM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 66 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.