Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 94, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 26, 2012, 4:10 PM CDT for Dunn County, Pierce County, Saint Croix County, Wisconsin. It was in force for 65 min. 4 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
- May 26, 2012, 4:10 PM CDT (21:10 UTC)
- Expired
- May 26, 2012, 5:15 PM CDT
- In force
- 65 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Dunn County, WI, Pierce County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 109 km from the middle of the area, began a volume at 21:10 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 |
|---|---|---|---|
| May 26, 4:50 PM CDT | HAIL 1 | 3 S Ellsworth, WI | |
| May 26, 5:00 PM CDT | HAIL 1.75 | 4 Sw Elmwood, WI | GOLF BALL SIZED HAIL REPORTED BY TRAINED SPOTTER. |
| May 26, 5:03 PM CDT | HAIL 1.5 | 4 Sw Elmwood, WI | PING PONG SIZED HAIL REPORTED BY TRAINED SPOTTER...LASTED 4 MINUTES. |
| May 26, 5:15 PM CDT | HAIL 1.25 | Elmwood, WI |
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, 9.2 hours before the alert went out and 112 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 858 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 268 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
335 WUUS53 KMPX 262110 SVRMPX WIC033-093-109-262215- /O.NEW.KMPX.SV.W.0094.120526T2110Z-120526T2215Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 410 PM CDT SAT MAY 26 2012 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN DUNN COUNTY IN WEST CENTRAL WISCONSIN... PIERCE COUNTY IN WEST CENTRAL WISCONSIN... SOUTHEASTERN ST. CROIX COUNTY IN WEST CENTRAL WISCONSIN... * UNTIL 515 PM CDT * AT 406 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR DIAMOND BLUFF...OR ABOUT 8 MILES NORTH OF RED WING...AND MOVING NORTHEAST AT 45 MPH. LOCATIONS IN THE WARNING INCLUDE... RIVER FALLS... ELLSWORTH... MENOMONIE... HAGER CITY... ESDAILE... BELDENVILLE... MARTEL... BALDWIN... SPRING VALLEY... WOODVILLE... ELMWOOD... HERSEY... WILSON... KNAPP... PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4511 9194 4476 9174 4459 9256 4484 9274 TIME...MOT...LOC 2111Z 247DEG 38KT 4472 9258 WIND...HAIL <50MPH 1.00IN $$ BAP
1 follow-up statement
060 WWUS53 KMPX 262154 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 454 PM CDT SAT MAY 26 2012 WIC033-093-109-262215- /O.CON.KMPX.SV.W.0094.000000T0000Z-120526T2215Z/ DUNN WI-ST. CROIX WI-PIERCE WI- 454 PM CDT SAT MAY 26 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN PIERCE...SOUTHEASTERN ST. CROIX AND SOUTHWESTERN DUNN COUNTIES UNTIL 515 PM CDT... AT 449 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING WINDS OF 60 MPH. THIS STORM WAS LOCATED 7 MILES EAST OF ELLSWORTH... MOVING NORTHEAST AT 45 MPH. IN ADDITION...AT 450 PM THIS STORM PRODUCED HAIL THE SIZE OF QUARTERS THREE AND A HALF MILES SOUTHEAST OF ELLSWORTH. LOCATIONS IMPACTED INCLUDE... MENOMONIE...SPRING VALLEY...WOODVILLE...ELMWOOD...HERSEY... WILSON...KNAPP...BOYCEVILLE...WHEELER AND DOWNING...WAVERLY. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE HAIL...WHICH CAN SIGNIFICANTLY DAMAGE WINDOWS...SIDING AND VEHICLES. DAMAGING WINDS ARE ALSO EXPECTED...WHICH CAN UPROOT TREES AND DOWN POWER LINES. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4464 9233 4491 9250 4511 9194 4476 9174 TIME...MOT...LOC 2154Z 247DEG 38KT 4475 9228 WIND...HAIL 60MPH 1.75IN $$ BAP
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 2:15 PM CDT | Severe Thunderstorm Warning | MPX | Pepin, Pierce | 60 min |
| May 26, 3:09 PM CDT | Special Weather Statement | MPX | Pierce | 51 min |
| May 26, 3:19 PM CDT | Special Weather Statement | MPX | Pepin | 41 min |
| May 26, 3:33 PM CDT | Severe Thunderstorm Warning | MPX | Saint Croix | 57 min |
| May 26, 5:09 PM CDT | Severe Thunderstorm Warning | MPX | Dunn, Eau Claire, Pepin, Pierce | 50 min |
| May 26, 5:51 PM CDT | Severe Thunderstorm Warning | MPX | Dunn, Eau Claire, Pepin | 24 min |
| May 26, 6:14 PM CDT | Special Weather Statement | MPX | Eau Claire | 46 min |
| May 26, 6:45 PM CDT | Special Weather Statement | MPX | Barron | 60 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2012Every severe thunderstorm warning in 2012
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.