Alert archive / South Dakota / Flash Flood Warnings in 2020

Flash Flood Warning 5, NWS Rapid City, SD

May 23, 2020Haakon County, Ziebach County, South Dakota

NWS Rapid City, SD issued this flash flood warning at May 23, 2020, 6:07 PM MDT for Haakon County, Ziebach County, South Dakota. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 23, 2020, 6:07 PM MDT (00:07 UTC)
Expired: May 23, 2020, 9:39 PM MDT
In force: 4 hr
Issued by: NWS Rapid City, SD
Area: Storm-based polygon
Flood severity: None

Counties Haakon County, SD, Ziebach County, SD

The radar

The Rapid City radar (KUDX), 113 km from the middle of the area, began a volume at 00:07 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 flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Rapid City, SD wrote its last area forecast discussion before this flash flood warning went out at May 23, 5:44 PM MDT, 23 minutes earlier.

Area forecast discussion, May 23, 5:44 PM MDT, 23 minutes before

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Hazardous weather outlook, May 23, 12:00 PM MDT, 6 hours 7 minutes before

Hazardous Weather Outlook
National Weather Service Rapid City SD
1200 PM MDT Sat May 23 2020

WYZ054>058-071-241300-
Northern Campbell-Southern Campbell-Western Crook-
Wyoming Black Hills-Weston-Northeastern Crook-
1200 PM MDT Sat May 23 2020

This Hazardous Weather Outlook is for portions of northeast
Wyoming...and the Black Hills of Wyoming.

.DAY ONE...This Afternoon and Tonight

Showers and a few thunderstorms will be possible across
northeastern Wyoming. A few stronger thunderstorms are possible.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Additional rounds of thunderstorms are expected over the weekend.
Severe storms are not anticipated at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

SDZ001-002-012>014-024>026-028-031-032-072-073-241300-
Harding-Perkins-Butte-Northern Meade Co Plains-Ziebach-
Northern Black Hills-Northern Foot Hills-Rapid City-
Central Black Hills-Pennington Co Plains-Haakon-
Sturgis/Piedmont Foot Hills-Southern Meade Co Plains-
1200 PM MDT Sat May 23 2020

This Hazardous Weather Outlook is for portions of northwestern
South Dakota...southwestern South Dakota...and the Black Hills of
South Dakota.

.DAY ONE...This Afternoon and Tonight

Strong to severe thunderstorms are expected this afternoon and
tonight. Primary hazards will be large hail, damaging winds, and
heavy rainfall that could produce flash flooding.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Additional rounds of thunderstorms are expected over the next
several days. Severe weather is not anticipated at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

SDZ027-029-030-041>044-046-047-049-074-241300-
Southern Foot Hills-Southern Black Hills-Custer Co Plains-
Fall River-Oglala Lakota-Jackson-Bennett-Mellette-Todd-Tripp-
Hermosa Foot Hills-
1200 PM MDT Sat May 23 2020 /100 PM CDT Sat May 23 2020/

This Hazardous Weather Outlook is for portions of south central
South Dakota...southwestern South Dakota...and the Black Hills of
South Dakota.

.DAY ONE...This Afternoon and Tonight

Strong to severe thunderstorms are expected across western and
south central South Dakota. Some of these storms may contain
large hail, damaging winds and locally heavy rainfall.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Additional rounds of thunderstorms are expected over the next
several days. Severe weather is not anticipated at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

In the hours before

Local storm report, May 23, 4:33 PM MDT, 1 hour 34 minutes before

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Special weather statement, May 23, 4:41 PM MDT, 1 hour 26 minutes before

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Local storm report, May 23, 4:44 PM MDT, 1 hour 23 minutes before

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Local storm report, May 23, 5:08 PM MDT, 59 minutes before

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Local storm report, May 23, 5:35 PM MDT, 32 minutes before

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Local storm report, May 23, 5:44 PM MDT, 23 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 6:04 PM MDT	Flash Flood Warning	UNR	Meade, Pennington	2 hr
May 23, 6:14 PM MDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Ziebach	91 min
May 23, 6:23 PM MDT	Severe Thunderstorm Warning	UNR	Bennett, Jackson	52 min
May 23, 6:54 PM MDT	Flash Flood Warning	UNR	Haakon	5 hr
May 23, 7:12 PM MDT	Severe Thunderstorm Warning	UNR	Bennett, Jackson	63 min
May 23, 7:44 PM MDT	Severe Thunderstorm Warning	UNR	Haakon, Jackson, Mellette	46 min
May 23, 8:15 PM MDT	Special Weather Statement	UNR	Bennett	45 min

Nearby

Flash Flood Warnings in South Dakota, 2020 Every flash flood 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.