Alert archive / Wisconsin / Tornado Warnings in 2024
Tornado Warning 34, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at Aug 29, 2024, 5:57 PM CDT for Pierce County, Saint Croix County, Wisconsin. It was in force for 33 min. 5 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
- Aug 29, 2024, 5:57 PM CDT (22:57 UTC)
- Expired
- Aug 29, 2024, 6:30 PM CDT
- In force
- 33 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Pierce County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 72 km from the middle of the area, began a volume at 22:58 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 29, 6:09 PM CDT | TSTM WND DMG | 5 Se River Falls, WI | Delayed report, time estimated from radar. Tree uprooted. |
| Aug 29, 6:10 PM CDT | TORNADO | 4 Se River Falls, WI | Multiple reports of brief tornado touching down south of River Falls that has now lifted or become rain wrapped. |
| Aug 29, 6:13 PM CDT | TSTM WND DMG | 3 Nnw Ellsworth, WI | Photos provided via social media of several trees down in the town of Beldenville. Time estimated via radar. Time estimated via radar. |
| Aug 29, 6:13 PM CDT | TORNADO | 8 Nw El Paso, WI | County dispatch reported numerous trees and power lines down between River Falls and Spring Valley along Hwy 29 between Co Rd W and 650th St. Time estimated via radar. |
| Aug 29, 6:30 PM CDT | TSTM WND DMG | 4 N Spring Valley, WI | Reported via X. Lots of tree damage along CR-nn especially near house #435 both N and S. |
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 29, 2:33 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.0 hours before the alert went out and 75 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
- 832 J/kg
- Mixed-layer CIN
- -148 J/kg
- Mixed-layer LCL
- 584 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 242 m²/s²
- 0-3 km storm-relative helicity
- 296 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 8.9
The text
As transmitted.
161
WFUS53 KMPX 292257
TORMPX
WIC093-109-292330-
/O.NEW.KMPX.TO.W.0034.240829T2257Z-240829T2330Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Twin Cities/Chanhassen MN
557 PM CDT Thu Aug 29 2024
The National Weather Service in the Twin Cities has issued a
* Tornado Warning for...
Northwestern Pierce County in west central Wisconsin...
Southeastern St. Croix County in west central Wisconsin...
* Until 630 PM CDT.
* At 557 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Prescott, or 9 miles southwest of River Falls,
moving northeast at 45 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...
River Falls around 605 PM CDT.
Baldwin around 620 PM CDT.
Hammond around 625 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Beldenville and Martel.
This includes Interstate 94 in Wisconsin between mile markers 10 and
25.
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 4467 9268 4472 9274 4474 9279 4475 9281
4477 9281 4478 9280 4507 9245 4488 9217
TIME...MOT...LOC 2257Z 229DEG 40KT 4473 9270
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
RMD3 follow-up statements
406
WWUS53 KMPX 292306
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
606 PM CDT Thu Aug 29 2024
WIC093-109-292330-
/O.CON.KMPX.TO.W.0034.000000T0000Z-240829T2330Z/
Pierce WI-St. Croix WI-
606 PM CDT Thu Aug 29 2024
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
NORTHWESTERN PIERCE AND SOUTHEASTERN ST. CROIX COUNTIES...
At 606 PM CDT, a severe thunderstorm capable of producing a tornado
was located near River Falls, moving northeast at 45 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
River Falls around 610 PM CDT.
Baldwin around 620 PM CDT.
Woodville around 625 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Beldenville and Martel.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4471 9259 4482 9274 4507 9245 4488 9217
TIME...MOT...LOC 2306Z 229DEG 40KT 4480 9259
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
RMD549
WWUS53 KMPX 292318
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
618 PM CDT Thu Aug 29 2024
WIC093-109-292330-
/O.CON.KMPX.TO.W.0034.000000T0000Z-240829T2330Z/
Pierce WI-St. Croix WI-
618 PM CDT Thu Aug 29 2024
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR NORTH
CENTRAL PIERCE AND SOUTHEASTERN ST. CROIX COUNTIES...
At 617 PM CDT, a confirmed tornado was located 6 miles south of
Hammond, or 8 miles east of River Falls, moving northeast at 50 mph.
Storm chasers reported a rain wrapped torndo east of River Falls.
HAZARD...Damaging tornado.
SOURCE...Weather spotters confirmed tornado.
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 tornado will be near...
Baldwin and Woodville around 625 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Martel.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. 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 4480 9249 4488 9259 4507 9245 4488 9217
TIME...MOT...LOC 2317Z 229DEG 43KT 4488 9244
TORNADO...OBSERVED
MAX HAIL SIZE...<.75 IN
$$
RMD090 WWUS53 KMPX 292325 SVSMPX Severe Weather Statement National Weather Service Twin Cities/Chanhassen MN 625 PM CDT Thu Aug 29 2024 WIC093-109-292334- /O.EXP.KMPX.TO.W.0034.000000T0000Z-240829T2330Z/ Pierce WI-St. Croix WI- 625 PM CDT Thu Aug 29 2024 ...THE TORNADO WARNING FOR NORTH CENTRAL PIERCE AND SOUTHEASTERN ST. CROIX COUNTIES WILL EXPIRE AT 630 PM CDT... The storm which prompted the warning has exited the warned area. Therefore, the warning will be allowed to expire. However, gusty winds and heavy rain are still possible with this thunderstorm. A Severe Thunderstorm Watch remains in effect until 900 PM CDT for west central Wisconsin. Remember, a Tornado Warning still remains in effect for Southeastern Pierce and Dunn Counties. && LAT...LON 4480 9249 4488 9259 4507 9245 4488 9217 TIME...MOT...LOC 2324Z 229DEG 40KT 4492 9237 $$ RMD
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 4:53 PM CDT | Tornado Warning | MPX | Polk | 20 min |
| Aug 29, 4:58 PM CDT | Severe Thunderstorm Warning | MPX | Polk | 32 min |
| Aug 29, 5:19 PM CDT | Severe Thunderstorm Warning | MPX | Barron, Polk | 29 min |
| Aug 29, 5:57 PM CDT | Flash Flood Warning | MPX | Polk | 2 hr |
| Aug 29, 6:21 PM CDT | Tornado Warning | MPX | Dunn, Saint Croix | 39 min |
| Aug 29, 6:49 PM CDT | Tornado Warning | MPX | Chippewa, Dunn | 27 min |
Nearby
Tornado Warnings in Wisconsin, 2024Every tornado warning in 2024Tornadoes in 2024
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.