Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 113, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 3, 2018, 10:47 AM CDT for Dunn County, Eau Claire County, Pepin County, Wisconsin. It was in force for 28 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, 10:47 AM CDT (15:47 UTC)
- Expired
- Aug 3, 2018, 11:15 AM CDT
- In force
- 28 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 50.0 mph
Counties Dunn County, WI, Eau Claire County, WI, Pepin County, WI
The radar
The La Crosse radar (KARX), 107 km from the middle of the area, began a volume at 15:47 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, 11:00 AM CDT | HAIL 0.75 | 8 S Elk Mound, WI | LOTS OF 3/4 INCH HAIL. |
| Aug 3, 11:00 AM CDT | HAIL 0.88 | 11 S Elk Mound, WI | HAIL UP TO THE SIZE OF NICKELS WAS REPORTED IN CARYVILLE. |
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, 3.8 hours before the alert went out and 139 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.
348
WUUS53 KMPX 031547
SVRMPX
WIC033-035-091-031615-
/O.NEW.KMPX.SV.W.0113.180803T1547Z-180803T1615Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
1047 AM CDT FRI AUG 3 2018
The National Weather Service in The Twin Cities has issued a
* Severe Thunderstorm Warning for...
Northeastern Pepin County in west central Wisconsin...
Southeastern Dunn County in west central Wisconsin...
Southwestern Eau Claire County in west central Wisconsin...
* Until 1115 AM CDT.
* At 1047 AM CDT, a severe thunderstorm was located near Downsville,
or 10 miles south of Menomonie, moving southeast at 50 mph.
HAZARD...Half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
* Locations impacted include...
Durand, Eau Galle, Rock Falls, Caryville and Downsville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.
This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows!
&&
LAT...LON 4460 9188 4465 9200 4464 9201 4468 9206
4484 9185 4460 9135
TIME...MOT...LOC 1547Z 297DEG 44KT 4474 9185
HAIL...1.25IN
WIND...<50MPH
$$
ETA1 follow-up statement
430 WWUS53 KMPX 031607 SVSMPX Severe Weather Statement National Weather Service Twin Cities/Chanhassen MN 1107 AM CDT FRI AUG 3 2018 WIC033-035-091-031615- /O.CON.KMPX.SV.W.0113.000000T0000Z-180803T1615Z/ Pepin WI-Dunn WI-Eau Claire WI- 1107 AM CDT FRI AUG 3 2018 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 AM CDT FOR NORTHEASTERN PEPIN...SOUTHEASTERN DUNN AND SOUTHWESTERN EAU CLAIRE COUNTIES... At 1107 AM CDT, a severe thunderstorm was located near Mondovi Airfield, or 7 miles northeast of Mondovi, moving southeast at 50 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Rock Falls and Caryville. PRECAUTIONARY/PREPAREDNESS ACTIONS... Prepare immediately for large hail and deadly cloud to ground lightning. Seek shelter inside a well-built structure. Stay away from windows. This storm is producing large hail. SEEK SHELTER NOW inside a sturdy structure and stay away from windows. && LAT...LON 4472 9180 4477 9170 4460 9135 4460 9166 TIME...MOT...LOC 1607Z 297DEG 44KT 4462 9153 HAIL...1.00IN WIND...<50MPH $$ 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, 10:12 AM CDT | Severe Thunderstorm Warning | MPX | Dunn, Pepin, Pierce | 33 min |
| Aug 3, 10:16 AM CDT | Special Weather Statement | MPX | Dunn | 29 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.