Alert archive / South Dakota / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 202, NWS Aberdeen, SD

August 8, 2020Corson County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 8, 2020, 4:59 AM MDT for Corson County, South Dakota. It was in force for 36 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 8, 2020, 4:59 AM MDT (10:59 UTC)
Expired
Aug 8, 2020, 5:35 AM MDT
In force
36 min
Issued by
NWS Aberdeen, SD
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Corson County, SD

The radar

The Bismarck radar (KBIS), 123 km from the middle of the area, began a volume at 11:01 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.

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 8, 2:58 AM MDT, 2 hours 1 minute earlier.

Area forecast discussion, Aug 8, 2:58 AM MDT, 2 hours 1 minute before
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Hazardous weather outlook, Aug 8, 3:23 AM MDT, 1 hour 36 minutes before
Hazardous Weather Outlook
National Weather Service Aberdeen SD
423 AM CDT Sat Aug 8 2020

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-090930-
Traverse-Big Stone-Corson-Campbell-McPherson-Brown-Marshall-Roberts-
Walworth-Edmunds-Day-Dewey-Potter-Faulk-Spink-Clark-Codington-Grant-
Hamlin-Deuel-Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-Buffalo-
423 AM CDT Sat Aug 8 2020 /323 AM MDT Sat Aug 8 2020/

This Hazardous Weather Outlook is for west central Minnesota,
central South Dakota, north central South Dakota and northeast
South Dakota.

.DAY ONE...Today and tonight.

A boundary is expected to push through the region late this afternoon
or evening, which may bring storms, especially in the south and
eastern parts of the forecast area. There is potential for isolated
severe storms with hail and damaging wind being the main threat.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday the potential for storms lingers, mostly in far eastern SD along
the I-29 corridor.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

The office that day

Everything else NWS Aberdeen, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 8, 4:09 AM MDTSevere Thunderstorm WarningABRCorson51 min
Aug 8, 7:13 AM MDTSpecial Weather StatementABRBrown, Edmunds, McPherson62 min
Aug 8, 7:25 AM MDTSevere Thunderstorm WarningABREdmunds, McPherson35 min
Aug 8, 7:58 AM MDTSevere Thunderstorm WarningABRBrown, Edmunds, McPherson32 min
Aug 8, 10:19 AM MDTSpecial Weather StatementABRHamlin26 min
Aug 8, 10:45 AM MDTSpecial Weather StatementABRHamlin30 min
Aug 8, 11:10 AM MDTSpecial Weather StatementABRDeuel35 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; radar from the NEXRAD Level II archive.