Alert archive / South Dakota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 32, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Jun 11, 2021, 4:16 AM CDT for 8 counties in South Dakota. It was in force for 44 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 11, 2021, 4:16 AM CDT (09:16 UTC)
- Expired
- Jun 11, 2021, 5:00 AM CDT
- In force
- 44 min
- Issued by
- NWS Aberdeen, SD
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Brown County, SD, Clark County, SD, Codington County, SD, Day County, SD, Grant County, SD, Marshall County, SD, Roberts County, SD, Spink County, SD
The radar
The Aberdeen radar (KABR), 70 km from the middle of the area, began a volume at 09:19 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 11, 4:20 AM CDT | HAIL 1 | 2 Sse Claremont, SD | |
| Jun 11, 4:28 AM CDT | TSTM WND GST 69 | 3 Ne Crandall, SD |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 11, 2:15 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 9.3 hours before the alert went out and 84 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
- 1337 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 2725 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
The text
As transmitted.
297 WUUS53 KABR 110916 SVRABR SDC013-025-029-037-051-091-109-115-111000- /O.NEW.KABR.SV.W.0032.210611T0916Z-210611T1000Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Aberdeen SD 416 AM CDT Fri Jun 11 2021 The National Weather Service in Aberdeen has issued a * Severe Thunderstorm Warning for... Western Roberts County in northeastern South Dakota... Day County in northeastern South Dakota... Marshall County in northeastern South Dakota... Southeastern Brown County in northeastern South Dakota... Northwestern Grant County in northeastern South Dakota... Northern Clark County in northeastern South Dakota... Northeastern Spink County in northeastern South Dakota... Northwestern Codington County in northeastern South Dakota... * Until 500 AM CDT. * At 415 AM CDT, severe thunderstorms were located along a line extending from near Kidder to near Frankfort, moving east at 60 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Severe thunderstorms will be near... Veblen Flats Housing and Hillhead around 430 AM CDT. Veblen around 435 AM CDT. Other locations in the path of these severe thunderstorms include Claire City, New Effington, Garden City, Victor, Long Lake and Medicine Lake. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4494 9732 4497 9831 4593 9796 4593 9673 TIME...MOT...LOC 0915Z 267DEG 51KT 4593 9765 4488 9824 HAIL...<.75IN WIND...60MPH $$ Wise
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 11:06 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 39 min |
| Jun 11, 1:02 AM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 43 min |
| Jun 11, 1:15 AM CDT | Severe Thunderstorm Warning | ABR | Dewey, Jones, Stanley | 45 min |
| Jun 11, 1:47 AM CDT | Special Weather Statement | ABR | Walworth | 43 min |
| Jun 11, 2:37 AM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Faulk, McPherson, Potter, Walworth | 38 min |
| Jun 11, 2:54 AM CDT | Severe Thunderstorm Warning | ABR | Faulk, Potter, Sully | 36 min |
| Jun 11, 3:16 AM CDT | Severe Thunderstorm Warning | ABR | Campbell, Edmunds, Faulk, McPherson, Potter, Walworth | 44 min |
| Jun 11, 3:23 AM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hand, Spink | 52 min |
| Jun 11, 3:38 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, Edmunds, Faulk, McPherson, Marshall and 1 more | 52 min |
| Jun 11, 4:49 AM CDT | Severe Thunderstorm Warning | ABR | Clark, Codington, Grant, Hamlin, Spink | 41 min |
| Jun 11, 5:02 AM CDT | Severe Thunderstorm Warning | ABR | Clark, Codington, Day, Deuel, Grant, Marshall and 1 more | 43 min |
| Jun 11, 5:35 AM CDT | Severe Thunderstorm Warning | ABR | Codington, Deuel, Hamlin | 40 min |
| Jun 11, 5:49 AM CDT | Severe Thunderstorm Warning | ABR | Codington, Deuel, Grant, Roberts | 33 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 2021Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.