Alert archive / South Dakota / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 164, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 18, 2017, 4:24 PM CDT for Deuel County, South Dakota. It was in force for 51 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
- Aug 18, 2017, 4:24 PM CDT (21:24 UTC)
- Expired
- Aug 18, 2017, 5:15 PM CDT
- In force
- 51 min
- Issued by
- NWS Aberdeen, SD
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Deuel County, SD
The radar
The Sioux Falls radar (KFSD), 130 km from the middle of the area, began a volume at 21:27 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 nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 9.4 hours before the alert went out and 137 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
- 114 J/kg
- Mixed-layer CIN
- -290 J/kg
- Mixed-layer LCL
- 1289 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 176 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Aug 18, 3:31 PM CDT, 53 minutes earlier.
Area forecast discussion, Aug 18, 3:31 PM CDT, 53 minutes before
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</html>Hazardous weather outlook, Aug 18, 4:44 AM CDT, 11 hours 40 minutes before
Hazardous Weather Outlook National Weather Service Aberdeen SD 444 AM CDT Fri Aug 18 2017 MNZ039-046-SDZ007-008-011-019>023-190945- Traverse-Big Stone-Marshall-Roberts-Day-Clark-Codington-Grant- Hamlin-Deuel- 444 AM CDT Fri Aug 18 2017 This Hazardous Weather Outlook is for portions of west central Minnesota and northeast South Dakota. .DAY ONE...Today and Tonight Scattered showers and storms are expected across far northeast South Dakota and west central Minnesota today. A few storms could contain small hail and gusty winds. The atmosphere is such today that a landspout or a very weak and small tornado is possible. This would mainly be over extreme northeast South Dakota and on into west central Minnesota. .DAYS TWO THROUGH SEVEN...Saturday through Thursday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. SDZ003>006-009-010-015>018-033>037-045-048-051-190945- Corson-Campbell-McPherson-Brown-Walworth-Edmunds-Dewey-Potter- Faulk-Spink-Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-Buffalo- 444 AM CDT Fri Aug 18 2017 /344 AM MDT Fri Aug 18 2017/ This Hazardous Weather Outlook is for portions of central South Dakota, north central South Dakota, and northeast South Dakota. .DAY ONE...Today and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. TMT
In the hours before
Local storm report, Aug 18, 2:57 PM CDT, 1 hour 27 minutes before
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</html>Local storm report, Aug 18, 3:08 PM CDT, 1 hour 16 minutes before
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</html>Local storm report, Aug 18, 3:14 PM CDT, 1 hour 10 minutes before
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</html>Local storm report, Aug 18, 3:35 PM CDT, 49 minutes before
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</html>Local storm report, Aug 18, 3:43 PM CDT, 41 minutes before
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</html>Special weather statement, Aug 18, 4:18 PM CDT, 6 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 17, 7:11 PM CDT | Special Weather Statement | ABR | Potter, Sully | 79 min |
| Aug 18, 2:14 PM CDT | Special Weather Statement | ABR | Grant | 46 min |
| Aug 18, 2:16 PM CDT | Severe Thunderstorm Warning | ABR | Grant | 44 min |
| Aug 18, 2:59 PM CDT | Severe Thunderstorm Warning | ABR | Grant | 46 min |
| Aug 18, 3:51 PM CDT | Severe Thunderstorm Warning | ABR | Deuel, Grant | 24 min |
| Aug 18, 4:18 PM CDT | Special Weather Statement | ABR | Deuel | 42 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 2017Every severe thunderstorm warning in 2017
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.