Alert archive / South Dakota / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 65, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Jun 8, 2018, 9:29 PM CDT for Buffalo County, Lyman County, South Dakota. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 8, 2018, 9:29 PM CDT (02:29 UTC)
- Expired
- Jun 8, 2018, 10:15 PM CDT
- In force
- 46 min
- Issued by
- NWS Aberdeen, SD
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 70.0 mph
Counties Buffalo County, SD, Lyman County, SD
The radar
The Aberdeen radar (KABR), 186 km from the middle of the area, began a volume at 02:31 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 8, 5:55 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 2.5 hours before the alert went out and 135 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
- 755 J/kg
- Mixed-layer CIN
- -101 J/kg
- Mixed-layer LCL
- 2119 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
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.
NWS Aberdeen, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 8, 6:45 PM CDT, 2 hours 44 minutes earlier.
Area forecast discussion, Jun 8, 6:45 PM CDT, 2 hours 44 minutes before
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</html>Hazardous weather outlook, Jun 8, 4:24 AM CDT, 17 hours 5 minutes before
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Special weather statement, Jun 8, 6:47 PM CDT, 2 hours 42 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 |
|---|---|---|---|---|
| Jun 8, 7:31 PM CDT | Special Weather Statement | ABR | Jones | 44 min |
| Jun 8, 7:43 PM CDT | Special Weather Statement | ABR | Sully | 47 min |
| Jun 8, 7:46 PM CDT | Special Weather Statement | ABR | Hughes | 44 min |
| Jun 8, 8:06 PM CDT | Special Weather Statement | ABR | Jones | 39 min |
| Jun 8, 8:22 PM CDT | Special Weather Statement | ABR | Hyde | 53 min |
| Jun 8, 8:25 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman | 50 min |
| Jun 8, 9:04 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 26 min |
| Jun 8, 9:09 PM CDT | Special Weather Statement | ABR | Buffalo | 51 min |
| Jun 8, 9:42 PM CDT | Special Weather Statement | ABR | Hand, Hyde | 48 min |
| Jun 8, 10:13 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo | 20 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 2018Every severe thunderstorm warning in 2018
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; radar from the NEXRAD Level II archive.