Alert archive / Wisconsin / Tornado Warnings in 2021
Tornado Warning 8, NWS Duluth, MN
NWS Duluth, MN issued this tornado warning at Sep 20, 2021, 5:52 PM CDT for Ashland County, Bayfield County, Wisconsin. It was in force for 23 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
- Sep 20, 2021, 5:52 PM CDT (22:52 UTC)
- Expired
- Sep 20, 2021, 6:15 PM CDT
- In force
- 23 min
- Issued by
- NWS Duluth, MN
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
Counties Ashland County, WI, Bayfield County, WI
The radar
The Duluth radar (KDLH), 109 km from the middle of the area, began a volume at 22:56 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 |
|---|---|---|---|
| Sep 20, 6:01 PM CDT | MARINE TSTM WIND 52 | 3 Sw Ashland, WI | ASOS STATION KASX ASHLAND AIRPORT. |
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 |
|---|---|---|---|
| Sep 20, 5:14 PM CDT | Tornado Watch | SPC | 3 hr |
The nearest sounding before it
International Fa, MN (KINL), launched 12:00Z, 10.9 hours before the alert went out and 280 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
- 25 J/kg
- Mixed-layer CIN
- -228 J/kg
- Mixed-layer LCL
- 505 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 435 m²/s²
- 0-3 km storm-relative helicity
- 527 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.2
The text
As transmitted.
316
WFUS53 KDLH 202252
TORDLH
WIC003-007-202315-
/O.NEW.KDLH.TO.W.0008.210920T2252Z-210920T2315Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Duluth MN
552 PM CDT Mon Sep 20 2021
The National Weather Service in Duluth MN has issued a
* Tornado Warning for...
Northeastern Bayfield County in northwestern Wisconsin...
Northwestern Ashland County in northwestern Wisconsin...
* Until 615 PM CDT.
* At 551 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Ino, moving northeast at 50 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
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...
Barksdale around 600 PM CDT.
Ashland around 605 PM CDT.
Washburn around 610 PM CDT.
Other locations in the path of this tornadic thunderstorm include
Bayfield, La Pointe and Odanah.
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 4646 9111 4665 9121 4698 9069 4681 9056
4680 9061 4676 9063 4675 9069 4673 9072
4662 9054
TIME...MOT...LOC 2251Z 238DEG 42KT 4658 9109
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
Huyck1 follow-up statement
496
WWUS53 KDLH 202304
SVSDLH
Severe Weather Statement
National Weather Service Duluth MN
604 PM CDT Mon Sep 20 2021
WIC003-007-202315-
/O.CON.KDLH.TO.W.0008.000000T0000Z-210920T2315Z/
Bayfield WI-Ashland WI-
604 PM CDT Mon Sep 20 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR
NORTHEASTERN BAYFIELD AND NORTHWESTERN ASHLAND COUNTIES...
At 603 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Barksdale, or 4 miles south of Washburn, moving
northeast at 50 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
La Pointe, Odanah and Madeline Island.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4656 9073 4652 9093 4677 9103 4698 9069
4681 9056 4680 9061 4676 9063 4675 9069
4673 9072 4662 9054
TIME...MOT...LOC 2303Z 238DEG 42KT 4664 9091
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
HuyckThe office that day
Everything else NWS Duluth, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 20, 4:51 PM CDT | Special Weather Statement | DLH | Washburn | 24 min |
| Sep 20, 4:59 PM CDT | Tornado Warning | DLH | Bayfield, Douglas, Sawyer, Washburn | 31 min |
| Sep 20, 5:04 PM CDT | Tornado Warning | DLH | Bayfield, Douglas | 26 min |
| Sep 20, 5:24 PM CDT | Tornado Warning | DLH | Bayfield | 36 min |
| Sep 20, 5:29 PM CDT | Tornado Warning | DLH | Bayfield | 31 min |
| Sep 20, 5:49 PM CDT | Areal Flood Warning | DLH | Bayfield, Douglas | 3 hr |
| Sep 20, 5:57 PM CDT | Severe Thunderstorm Warning | DLH | Ashland, Bayfield, Iron, Sawyer | 63 min |
| Sep 20, 6:31 PM CDT | Special Weather Statement | DLH | Sawyer | 29 min |
Nearby
Tornado Warnings in Wisconsin, 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.