Alert archive / South Dakota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 98, NWS Rapid City, SD

July 18, 2017Haakon County, Jackson County, Pennington County, South Dakota

NWS Rapid City, SD issued this severe thunderstorm warning at Jul 18, 2017, 9:21 PM MDT for Haakon County, Jackson County, Pennington County, South Dakota. It was in force for 25 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 18, 2017, 9:21 PM MDT (03:21 UTC)
Expired: Jul 18, 2017, 9:46 PM MDT
In force: 25 min
Issued by: NWS Rapid City, SD
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Haakon County, SD, Jackson County, SD, Pennington County, SD

The radar

The Rapid City radar (KUDX), 68 km from the middle of the area, began a volume at 03:23 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 Rapid City, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 18, 4:37 PM MDT, 4 hours 44 minutes earlier.

Area forecast discussion, Jul 18, 4:37 PM MDT, 4 hours 44 minutes before

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Hazardous weather outlook, Jul 18, 6:20 AM MDT, 15 hours 1 minute before

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In the hours before

Local storm report, Jul 18, 8:20 PM MDT, 1 hour 1 minute before

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Local storm report, Jul 18, 8:25 PM MDT, 56 minutes before

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Local storm report, Jul 18, 8:34 PM MDT, 47 minutes before

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Local storm report, Jul 18, 8:39 PM MDT, 42 minutes before

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      <p id="message2">
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Local storm report, Jul 18, 8:49 PM MDT, 32 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
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      <p id="message2">
        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Local storm report, Jul 18, 9:09 PM MDT, 12 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
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      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
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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
Jul 18, 6:11 PM MDT	Special Weather Statement	UNR	Pennington	34 min
Jul 18, 6:55 PM MDT	Severe Thunderstorm Warning	UNR	Butte	65 min
Jul 18, 7:37 PM MDT	Severe Thunderstorm Warning	UNR	Butte, Meade	53 min
Jul 18, 8:24 PM MDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	66 min
Jul 19, 2:08 PM MDT	Special Weather Statement	UNR	Tripp	52 min
Jul 19, 2:30 PM MDT	Severe Thunderstorm Warning	UNR	Tripp	45 min
Jul 19, 3:56 PM MDT	Special Weather Statement	UNR	Todd	34 min
Jul 19, 4:08 PM MDT	Severe Thunderstorm Warning	UNR	Todd, Tripp	38 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2017 Every 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; radar from the NEXRAD Level II archive.