Alert archive / South Dakota / Special Weather Statements in 2021
Special Weather Statement, NWS Rapid City, SD
NWS Rapid City, SD issued this special weather statement at Aug 28, 2021, 3:13 AM MDT for Ziebach County, South Dakota. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 28, 2021, 3:13 AM MDT (09:13 UTC)
- Expired
- Aug 28, 2021, 3:45 AM MDT
- In force
- 32 min
- Issued by
- NWS Rapid City, SD
County Ziebach County, SD
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 9.2 hours before the alert went out and 254 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
- 460 J/kg
- Mixed-layer CIN
- -133 J/kg
- Mixed-layer LCL
- 1088 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Aug 27, 5:50 PM MDT, 9 hours 23 minutes earlier.
Area forecast discussion, Aug 27, 5:50 PM MDT, 9 hours 23 minutes before
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<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
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If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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</html>Hazardous weather outlook, Aug 27, 3:34 AM MDT, 23 hours 39 minutes before
Hazardous Weather Outlook National Weather Service Rapid City SD 334 AM MDT Fri Aug 27 2021 SDZ027-029-041-WYZ054>056-058-280945- Southern Foot Hills-Southern Black Hills-Fall River- Northern Campbell-Southern Campbell-Western Crook-Weston- 334 AM MDT Fri Aug 27 2021 This Hazardous Weather Outlook is for portions of southwestern South Dakota...the Black Hills of South Dakota...and northeast Wyoming. .DAY ONE...Today and Tonight Critical fire weather conditions are expected today with southwest winds gusting to near 30 mph and relative humidity dropping to around 10 percent. A few thunderstorms are possible later today. A strong storm or two is possible mainly north of I-90. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Non severe thunderstorms are possible on Saturday. .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 SDZ001-002-014-280945- Harding-Perkins-Ziebach- 334 AM MDT Fri Aug 27 2021 This Hazardous Weather Outlook is for portions of northwestern South Dakota. .DAY ONE...Today and Tonight There is a slight risk of severe thunderstorms late this afternoon and evening. Large hail and damaging winds will be the main threats. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Non severe thunderstorms are possible on Saturday. .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 SDZ026-028-030-042>044-046-047-049-074-280945- Rapid City-Central Black Hills-Custer Co Plains-Oglala Lakota- Jackson-Bennett-Mellette-Todd-Tripp-Hermosa Foot Hills- 334 AM MDT Fri Aug 27 2021 /434 AM CDT Fri Aug 27 2021/ This Hazardous Weather Outlook is for portions of south central South Dakota...southwestern South Dakota...and the Black Hills of South Dakota. .DAY ONE...Today and Tonight There is a chance of thunderstorms late this afternoon and evening, but severe storms are not expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Non severe thunderstorms are possible on Saturday. .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 SDZ012-013-024-025-031-032-072-073-WYZ057-071-280945- Butte-Northern Meade Co Plains-Northern Black Hills- Northern Foot Hills-Pennington Co Plains-Haakon- Sturgis/Piedmont Foot Hills-Southern Meade Co Plains- Wyoming Black Hills-Northeastern Crook- 334 AM MDT Fri Aug 27 2021 This Hazardous Weather Outlook is for portions of western South Dakota and northeastern Wyoming. .DAY ONE...Today and Tonight There is a marginal risk of severe thunderstorms late this afternoon and evening. Large hail and damaging winds will be the main threats. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Non severe thunderstorms are possible on Saturday. .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
The office that day
Everything else NWS Rapid City, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 7:14 PM MDT | Severe Thunderstorm Warning | UNR | Meade, Perkins, Ziebach | 46 min |
| Aug 28, 1:40 AM MDT | Special Weather Statement | UNR | Todd | 35 min |
| Aug 28, 3:00 AM MDT | Special Weather Statement | UNR | Tripp | 60 min |
| Aug 28, 3:08 AM MDT | Special Weather Statement | UNR | Ziebach | 37 min |
| Aug 28, 3:41 AM MDT | Special Weather Statement | UNR | Ziebach | 49 min |
| Aug 28, 7:00 AM MDT | Special Weather Statement | UNR | Todd, Tripp | 60 min |
| Aug 28, 8:01 AM MDT | Special Weather Statement | UNR | Todd, Tripp | 29 min |
| Aug 28, 8:44 AM MDT | Special Weather Statement | UNR | Todd | 31 min |
| Aug 28, 9:16 AM MDT | Special Weather Statement | UNR | Todd | 29 min |
| Aug 28, 9:44 AM MDT | Special Weather Statement | UNR | Todd | 31 min |
Nearby
Special Weather Statements in South Dakota, 2021Every special weather statement in 2021
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.