Alert archive / South Dakota / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 96, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 2, 2020, 7:07 PM MDT for 5 counties in South Dakota. It was in force for 38 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
- Jul 2, 2020, 7:07 PM MDT (01:07 UTC)
- Expired
- Jul 2, 2020, 7:45 PM MDT
- In force
- 38 min
- Issued by
- NWS Aberdeen, SD
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Dewey County, SD, Hughes County, SD, Potter County, SD, Stanley County, SD, Sully County, SD
The radar
The Aberdeen radar (KABR), 170 km from the middle of the area, began a volume at 01:09 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 |
|---|---|---|---|
| Jul 2, 1:15 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 1.1 hours before the alert went out and 154 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
- 1949 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 1823 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -32 m²/s²
- 0-3 km storm-relative helicity
- 99 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 Jul 2, 5:26 PM MDT, 1 hour 41 minutes earlier.
Area forecast discussion, Jul 2, 5:26 PM MDT, 1 hour 41 minutes before
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</html>Hazardous weather outlook, Jul 2, 3:14 AM MDT, 15 hours 53 minutes before
Hazardous Weather Outlook National Weather Service Aberdeen SD 414 AM CDT Thu Jul 2 2020 SDZ003-004-009-015-016-033>035-045-048-030915- Corson-Campbell-Walworth-Dewey-Potter-Stanley-Sully-Hughes-Jones- Lyman- 414 AM CDT Thu Jul 2 2020 /314 AM MDT Thu Jul 2 2020/ This Hazardous Weather Outlook is for central South Dakota and north central South Dakota. .DAY ONE...Today and tonight. Strong to severe storms will be possible late this afternoon through this evening. Some storms may be capable of producing golf ball size hail and 60 mph wind gusts. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Additional afternoon and nighttime thunderstorms are possible Friday through early next week. Some storms on Friday and Saturday could become strong to severe. .SPOTTER INFORMATION STATEMENT... Spotter activation may be requested. Weather spotters are encouraged to submit reports to the National Weather Service in Aberdeen. The public can submit reports on our web page, Facebook page, or our Twitter feed. SDZ005-006-010-017>019-036-037-051-030915- McPherson-Brown-Edmunds-Faulk-Spink-Clark-Hyde-Hand-Buffalo- 414 AM CDT Thu Jul 2 2020 This Hazardous Weather Outlook is for central South Dakota, north central South Dakota and northeast South Dakota. .DAY ONE...Today and tonight. Thunderstorms will be possible tonight. While severe weather is not expected, some storms could produce small hail and gusty winds. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Additional afternoon and nighttime thunderstorms are possible Friday through early next week. Some storms on Friday and Saturday could become strong to severe. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MNZ039-046-SDZ007-008-011-020>023-030915- Traverse-Big Stone-Marshall-Roberts-Day-Codington-Grant-Hamlin-Deuel- 414 AM CDT Thu Jul 2 2020 This Hazardous Weather Outlook is for west central Minnesota and northeast South Dakota. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Additional afternoon and nighttime thunderstorms are possible Friday through early next week. Some storms on Friday and Saturday could become strong to severe. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. SD
In the hours before
Local storm report, Jul 2, 6:23 PM MDT, 44 minutes before
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</html>Local storm report, Jul 2, 6:36 PM MDT, 31 minutes before
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</html>Local storm report, Jul 2, 6:48 PM MDT, 19 minutes before
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</html>Special weather statement, Jul 2, 6:50 PM MDT, 17 minutes before
Special Weather Statement National Weather Service Aberdeen SD 750 PM CDT Thu Jul 2 2020 SDZ003-004-009-030130- Walworth SD-Campbell SD-Corson SD- 750 PM CDT Thu Jul 2 2020 ...SIGNIFICANT WEATHER ADVISORY FOR EASTERN CORSON...WESTERN CAMPBELL AND NORTHWESTERN WALWORTH COUNTIES UNTIL 830 PM CDT/730 PM MDT/... At 749 PM CDT/649 PM MDT/, Doppler radar was tracking strong thunderstorms along a line extending from 10 miles northwest of Kenel to near Trail City. Movement was east at 35 mph. Wind gusts up to 50 mph will be possible with these storms. Locations impacted include... Mobridge, Wakpala, Pollock, Glenham, Indian Memorial Rec Area, Trail City, Mahto, Revheim Bay Rec Area, Grand River Casino, Kenel and Indian Creek Rec Area. A Severe Thunderstorm Watch remains in effect until 900 PM CDT/800 PM MDT/ for north central South Dakota. LAT...LON 4594 10009 4547 10013 4547 10081 4594 10078 TIME...MOT...LOC 0049Z 271DEG 29KT 4594 10063 4547 10066 Parkin
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 6:46 PM MDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Walworth | 44 min |
| Jul 2, 6:50 PM MDT | Special Weather Statement | ABR | Campbell | 40 min |
| Jul 2, 7:33 PM MDT | Severe Thunderstorm Warning | ABR | Hughes, Stanley, Sully | 42 min |
| Jul 2, 7:52 PM MDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 53 min |
| Jul 2, 8:03 PM MDT | Special Weather Statement | ABR | Hughes, Hyde, Sully | 42 min |
| Jul 2, 8:16 PM MDT | Severe Thunderstorm Warning | ABR | Lyman, Stanley | 44 min |
| Jul 2, 8:29 PM MDT | Severe Thunderstorm Warning | ABR | Jones, Lyman, Stanley | 46 min |
| Jul 2, 8:48 PM MDT | Special Weather Statement | ABR | Buffalo, Hyde | 42 min |
| Jul 2, 9:19 PM MDT | Special Weather Statement | ABR | Lyman | 56 min |
| Jul 2, 9:55 PM MDT | Severe Thunderstorm Warning | ABR | Hand, Hyde | 26 min |
| Jul 3, 3:43 AM MDT | Special Weather Statement | ABR | Corson | 47 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 2020Every severe thunderstorm warning in 2020
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.