Alert archive / Wisconsin / Tornado Warnings in 2020
Tornado Warning 24, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at Jul 21, 2020, 6:15 PM CDT for Barron County, Wisconsin. It was in force for 45 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
- Jul 21, 2020, 6:15 PM CDT (23:15 UTC)
- Expired
- Jul 21, 2020, 7:00 PM CDT
- In force
- 45 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Barron County, WI
The radar
The Minneapolis radar (KMPX), 146 km from the middle of the area, began a volume at 23:14 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
Minneapolis, MN (KMPX), launched 12:00Z, 11.3 hours before the alert went out and 148 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
- 148 J/kg
- Mixed-layer CIN
- -84 J/kg
- Mixed-layer LCL
- 1094 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 159 m²/s²
- 0-3 km storm-relative helicity
- 214 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.7
The text
As transmitted.
977 WFUS53 KMPX 212315 CCA TORMPX WIC005-220000- /O.NEW.KMPX.TO.W.0024.200721T2315Z-200722T0000Z/ BULLETIN - EAS ACTIVATION REQUESTED Tornado Warning National Weather Service Twin Cities/Chanhassen MN 615 PM CDT Tue Jul 21 2020 The National Weather Service in The Twin Cities has issued a * Tornado Warning for... Southeastern Barron County in northwestern Wisconsin... * Until 700 PM CDT. * At 615 PM CDT, a severe thunderstorm capable of producing a tornado was located near Barron, or 13 miles southwest of Rice Lake, moving east at 20 mph. HAZARD...Tornado. SOURCE...Weather spotters reported funnel cloud. IMPACT...Expect damage to mobile homes, roofs, and vehicles. * This dangerous storm will be near... Barron around 620 PM CDT. Cameron around 640 PM CDT. Chetek around 650 PM CDT. Other locations impacted by this tornadic thunderstorm include Sumner and Hillsdale. # # This includes U.S. Highway 53 between mile markers 125 and 136. 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 4531 9198 4538 9197 4542 9164 4525 9163 TIME...MOT...LOC 2315Z 273DEG 16KT 4535 9190 TORNADO...RADAR INDICATED HAIL...<.75IN $$ JLT
1 follow-up statement
094
WWUS53 KMPX 212332
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
632 PM CDT Tue Jul 21 2020
WIC005-220000-
/O.CON.KMPX.TO.W.0024.000000T0000Z-200722T0000Z/
Barron WI-
632 PM CDT Tue Jul 21 2020
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
SOUTHEASTERN BARRON COUNTY...
At 632 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Cameron, or 10 miles south of Rice Lake, moving east
at 20 mph.
HAZARD...TORNADO.
SOURCE...Weather spotters reported a funnel cloud.
IMPACT...Expect damage to mobile homes, roofs, and vehicles.
This dangerous storm will be near...
Cameron around 635 PM CDT.
Chetek around 645 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Sumner.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4532 9187 4539 9189 4542 9164 4528 9163
TIME...MOT...LOC 2332Z 273DEG 16KT 4535 9178
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
CEOThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 3:59 PM CDT | Special Weather Statement | MPX | Polk | 31 min |
| Jul 21, 4:31 PM CDT | Special Weather Statement | MPX | Polk | 44 min |
| Jul 21, 5:15 PM CDT | Special Weather Statement | MPX | Polk | 60 min |
| Jul 21, 5:39 PM CDT | Special Weather Statement | MPX | Barron | 51 min |
| Jul 21, 5:39 PM CDT | Tornado Warning | MPX | Barron | 36 min |
| Jul 21, 5:42 PM CDT | Tornado Warning | MPX | Barron, Dunn | 33 min |
| Jul 21, 6:14 PM CDT | Tornado Warning | MPX | Barron | 3 min |
| Jul 21, 6:15 PM CDT | Tornado Warning | MPX | Dunn | 60 min |
| Jul 21, 6:23 PM CDT | Tornado Warning | MPX | Barron | 52 min |
Nearby
Tornado Warnings in Wisconsin, 2020Every tornado warning in 2020Tornadoes in 2020
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.