Alert archive / Minnesota / Tornado Warnings in 2021
Tornado Warning 11, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at Aug 28, 2021, 5:06 PM CDT for 4 counties in Minnesota. It was in force for 24 min. 1 report 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
- Aug 28, 2021, 5:06 PM CDT (22:06 UTC)
- Expired
- Aug 28, 2021, 5:30 PM CDT
- In force
- 24 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN
The radar
The Sioux Falls radar (KFSD), 56 km from the middle of the area, began a volume at 22:10 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 |
|---|---|---|---|
| Aug 28, 5:11 PM CDT | TSTM WND GST 68 | 3 Ene Hardwick, MN | RELAYED REPORT FROM PERSONAL WEATHER STATION REPORTED GUST OF 68 MPH. |
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 |
|---|---|---|---|
| Aug 28, 3:44 PM CDT | Tornado Watch | SPC | 5 hr |
| Aug 28, 3:57 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 10.1 hours before the alert went out and 226 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
- 9 J/kg
- Mixed-layer CIN
- -334 J/kg
- Mixed-layer LCL
- 1540 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 558 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted.
585
WFUS53 KFSD 282206
TORFSD
MNC101-105-117-133-282230-
/O.NEW.KFSD.TO.W.0011.210828T2206Z-210828T2230Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Sioux Falls SD
506 PM CDT Sat Aug 28 2021
The National Weather Service in Sioux Falls has issued a
* Tornado Warning for...
Northeastern Rock County in southwestern Minnesota...
Northwestern Nobles County in southwestern Minnesota...
Southwestern Murray County in southwestern Minnesota...
Southeastern Pipestone County in southwestern Minnesota...
* Until 530 PM CDT.
* At 505 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Blue Mounds State Park, or over Luverne, moving
east at 50 mph.
HAZARD...Tornado.
SOURCE...Weather spotters reported funnel cloud near Trosky. A
second circulation was located near Luverne.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Leota and Lismore around 520 PM CDT.
Other locations in the path of this tornadic thunderstorm include
Wilmont.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4363 9631 4389 9630 4393 9578 4366 9562
TIME...MOT...LOC 2205Z 250DEG 44KT 4369 9621
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
KalinThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 28, 4:45 PM CDT | Tornado Warning | FSD | Rock | 30 min |
| Aug 28, 4:49 PM CDT | Severe Thunderstorm Warning | FSD | Nobles, Rock | 41 min |
| Aug 28, 5:00 PM CDT | Severe Thunderstorm Warning | FSD | Nobles, Rock | 45 min |
| Aug 28, 5:24 PM CDT | Tornado Warning | FSD | Nobles | 36 min |
| Aug 28, 5:26 PM CDT | Severe Thunderstorm Warning | FSD | Cottonwood, Jackson, Murray, Nobles, Pipestone, Rock | 34 min |
| Aug 28, 5:26 PM CDT | Tornado Warning | FSD | Cottonwood, Murray | 34 min |
| Aug 28, 5:29 PM CDT | Severe Thunderstorm Warning | FSD | Cottonwood, Jackson, Murray, Nobles, Pipestone, Rock | 31 min |
| Aug 28, 5:34 PM CDT | Severe Thunderstorm Warning | FSD | Rock | 17 min |
| Aug 28, 5:43 PM CDT | Tornado Warning | FSD | Cottonwood, Murray | 32 min |
| Aug 28, 5:45 PM CDT | Severe Thunderstorm Warning | FSD | Cottonwood, Jackson, Murray, Nobles | 45 min |
| Aug 28, 5:49 PM CDT | Tornado Warning | FSD | Cottonwood, Jackson, Murray, Nobles | 26 min |
| Aug 28, 6:01 PM CDT | Tornado Warning | FSD | Cottonwood | 30 min |
| Aug 28, 6:15 PM CDT | Severe Thunderstorm Warning | FSD | Pipestone, Rock | 45 min |
| Aug 28, 6:53 PM CDT | Severe Thunderstorm Warning | FSD | Rock | 52 min |
Nearby
Tornado Warnings in Minnesota, 2021Every tornado warning in 2021Tornadoes 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.