Alert archive / South Dakota / Special Weather Statements in 2021
Special Weather Statement, NWS Aberdeen, SD
NWS Aberdeen, SD issued this special weather statement at May 24, 2021, 1:00 AM CDT for 5 counties in South Dakota. It was in force for 60 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
- May 24, 2021, 1:00 AM CDT (06:00 UTC)
- Expired
- May 24, 2021, 2:00 AM CDT
- In force
- 60 min
- Issued by
- NWS Aberdeen, SD
Counties Codington County, SD, Deuel County, SD, Grant County, SD, Hamlin County, SD, Roberts County, SD
The radar
The Aberdeen radar (KABR), 117 km from the middle of the area, began a volume at 05:59 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 nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 6.0 hours before the alert went out and 118 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
- 407 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 2081 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 97 m²/s²
- 0-3 km storm-relative helicity
- 173 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
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 Aberdeen, SD wrote its last area forecast discussion before this special weather statement went out at May 24, 12:29 AM CDT, 31 minutes earlier.
Area forecast discussion, May 24, 12:29 AM CDT, 31 minutes before
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</html>Hazardous weather outlook, May 23, 4:43 AM CDT, 20 hours 17 minutes before
Hazardous Weather Outlook National Weather Service Aberdeen SD 443 AM CDT Sun May 23 2021 MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-240945- 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- 443 AM CDT Sun May 23 2021 /343 AM MDT Sun May 23 2021/ 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. Strong to severe storms are expected to develop this afternoon across eastern Wyoming and western South Dakota, then move into central South Dakota by this evening. Large hail up to golf ball size and damaging winds in excess of 70 mph are possible. There is a threat for a couple tornadoes as well, mainly west of the Missouri River. The severe threat looks to diminish as storms approach the James River later tonight. .DAYS TWO THROUGH SEVEN...Monday through Saturday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation may be requested this evening. 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. TMT
In the hours before
Special weather statement, May 24, 12:14 AM CDT, 46 minutes before
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</html>Local storm report, May 24, 12:22 AM CDT, 38 minutes before
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</html>Local storm report, May 24, 12:30 AM CDT, 30 minutes before
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</html>Local storm report, May 24, 12:44 AM CDT, 16 minutes before
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</html>Special weather statement, May 24, 1:00 AM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 7:59 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 46 min |
| May 23, 9:37 PM CDT | Special Weather Statement | ABR | Hughes | 23 min |
| May 23, 10:04 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hughes, Lyman | 41 min |
| May 23, 10:14 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Faulk, Hand, Hughes, Hyde, Lyman and 2 more | 46 min |
| May 23, 10:46 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Faulk, Hand, Hyde, Potter, Sully | 44 min |
| May 23, 11:06 PM CDT | Special Weather Statement | ABR | Edmunds, Walworth | 24 min |
| May 23, 11:23 PM CDT | Special Weather Statement | ABR | Spink | 37 min |
| May 23, 11:30 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Edmunds, Faulk, McPherson, Walworth | 45 min |
| May 24, 12:03 AM CDT | Special Weather Statement | ABR | Brown | 42 min |
| May 24, 12:11 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, McPherson, Marshall, Spink | 49 min |
| May 24, 12:14 AM CDT | Special Weather Statement | ABR | Clark, Day | 46 min |
| May 24, 12:55 AM CDT | Special Weather Statement | ABR | Marshall | 35 min |
| May 24, 1:17 AM CDT | Special Weather Statement | ABR | Roberts | 43 min |
| May 24, 2:59 PM CDT | Wind Advisory | ABR | Brown, Campbell, Corson, Day, Dewey, Edmunds and 4 more | 28 hr |
| May 24, 1:48 AM CDT | Special Weather Statement | ABR | Big Stone, Traverse | 42 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; radar from the NEXRAD Level II archive.