Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 112, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 3, 2018, 10:12 AM CDT for Dunn County, Pepin County, Pierce County, Wisconsin. It was in force for 33 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
- Aug 3, 2018, 10:12 AM CDT (15:12 UTC)
- Expired
- Aug 3, 2018, 10:45 AM CDT
- In force
- 33 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 50.0 mph
Counties Dunn County, WI, Pepin County, WI, Pierce County, WI
The radar
The Minneapolis radar (KMPX), 101 km from the middle of the area, began a volume at 15:11 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 3, 10:15 AM CDT | HAIL 0.88 | 5 S El Paso, WI | |
| Aug 3, 10:26 AM CDT | HAIL 1 | 3 S Elmwood, WI | HAIL UP TO THE SIZE OF QUARTERS FELL BETWEEN 10:26 AND 10:31 AM. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 3.2 hours before the alert went out and 103 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
- 42 J/kg
- Mixed-layer CIN
- -626 J/kg
- Mixed-layer LCL
- 955 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 186 m²/s²
- 0-3 km storm-relative helicity
- 260 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.6
The text
As transmitted.
424
WUUS53 KMPX 031512
SVRMPX
WIC033-091-093-031545-
/O.NEW.KMPX.SV.W.0112.180803T1512Z-180803T1545Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
1012 AM CDT FRI AUG 3 2018
The National Weather Service in The Twin Cities has issued a
* Severe Thunderstorm Warning for...
Northwestern Pepin County in west central Wisconsin...
Eastern Pierce County in west central Wisconsin...
Southwestern Dunn County in west central Wisconsin...
* Until 1045 AM CDT.
* At 1012 AM CDT, a severe thunderstorm was located over El Paso, or
14 miles southeast of River Falls, moving southeast at 40 mph.
HAZARD...Ping pong ball size hail.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect
damage to roofs, siding, windows, and vehicles.
* Locations impacted include...
Ellsworth, Eau Galle, Plum City and El Paso.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.
&&
LAT...LON 4474 9250 4482 9241 4470 9199 4451 9213
TIME...MOT...LOC 1512Z 299DEG 33KT 4474 9236
HAIL...1.50IN
WIND...<50MPH
$$
ETA1 follow-up statement
089 WWUS53 KMPX 031527 SVSMPX Severe Weather Statement National Weather Service Twin Cities/Chanhassen MN 1027 AM CDT FRI AUG 3 2018 WIC033-091-093-031545- /O.CON.KMPX.SV.W.0112.000000T0000Z-180803T1545Z/ Pepin WI-Pierce WI-Dunn WI- 1027 AM CDT FRI AUG 3 2018 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 AM CDT FOR NORTHWESTERN PEPIN...SOUTHEASTERN PIERCE AND SOUTHWESTERN DUNN COUNTIES... At 1027 AM CDT, a severe thunderstorm was located over Plum City, or 19 miles northeast of Red Wing, moving southeast at 40 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Eau Galle and Plum City. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Prepare immediately for large hail and deadly cloud to ground lightning. Seek shelter inside a well-built structure. Stay away from windows. && LAT...LON 4466 9237 4476 9222 4470 9199 4451 9213 TIME...MOT...LOC 1527Z 299DEG 33KT 4467 9218 HAIL...1.00IN WIND...<50MPH $$ ETA
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 9:43 AM CDT | Severe Thunderstorm Warning | MPX | Pierce | 32 min |
| Aug 3, 9:45 AM CDT | Special Weather Statement | MPX | Saint Croix | 30 min |
| Aug 3, 10:16 AM CDT | Special Weather Statement | MPX | Dunn | 29 min |
| Aug 3, 10:47 AM CDT | Severe Thunderstorm Warning | MPX | Dunn, Eau Claire, Pepin | 28 min |
| Aug 3, 11:15 AM CDT | Special Weather Statement | MPX | Eau Claire | 30 min |
| Aug 3, 11:19 AM CDT | Special Weather Statement | MPX | Rusk | 26 min |
| Aug 3, 11:45 AM CDT | Special Weather Statement | MPX | Chippewa | 30 min |
| Aug 3, 11:49 AM CDT | Special Weather Statement | MPX | Rusk | 26 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2018Every severe thunderstorm warning in 2018
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.