Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 6, NWS Twin Cities, MN

May 3, 2015Pierce County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at May 3, 2015, 5:34 PM CDT for Pierce County, Wisconsin. It was in force for 26 min. 1 report 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 3, 2015, 5:34 PM CDT (22:34 UTC)
Expired
May 3, 2015, 6:00 PM CDT
In force
26 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.25 in
Wind
50.0 mph

County Pierce County, WI

The radar

The Minneapolis radar (KMPX), 88 km from the middle of the area, began a volume at 22:34 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

TimeReportWhereRemark
May 3, 5:50 PM CDTHAIL 0.754 E Ellsworth, 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, 10.6 hours before the alert went out and 90 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.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2015-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2015-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1098 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
71 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

459 
WUUS53 KMPX 032234
SVRMPX
WIC093-032300-
/O.NEW.KMPX.SV.W.0006.150503T2234Z-150503T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
534 PM CDT SUN MAY 3 2015

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL PIERCE COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 600 PM CDT

* AT 534 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR
  BELDENVILLE...OR 8 MILES SOUTH OF RIVER FALLS...MOVING EAST AT 25
  MPH.

  HAZARD...HALF DOLLAR SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...DAMAGE TO VEHICLES IS EXPECTED. 

* LOCATIONS IMPACTED INCLUDE...
  ELLSWORTH...SPRING VALLEY...EL PASO...DIAMOND BLUFF...MARTEL AND
  BELDENVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM IS PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4465 9263 4479 9269 4487 9243 4485 9224
      4466 9217
TIME...MOT...LOC 2234Z 257DEG 20KT 4474 9258 

HAIL...1.25IN
WIND...<50MPH
 
$$

JPC
1 follow-up statement
054 
WWUS53 KMPX 032253
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
553 PM CDT SUN MAY 3 2015

WIC093-032300-
/O.CON.KMPX.SV.W.0006.000000T0000Z-150503T2300Z/
PIERCE WI-
553 PM CDT SUN MAY 3 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR CENTRAL PIERCE COUNTY...

AT 553 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM ELLSWORTH TO NEAR FRONTENAC STATE PARK...MOVING EAST
AT 25 MPH.

HAZARD...HALF DOLLAR SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...DAMAGE TO VEHICLES IS EXPECTED. 

LOCATIONS IMPACTED INCLUDE...
ELLSWORTH...SPRING VALLEY...EL PASO...DIAMOND BLUFF...MARTEL AND
BELDENVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS ARE PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A
STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4465 9263 4477 9260 4487 9243 4485 9224
      4466 9217
TIME...MOT...LOC 2253Z 264DEG 21KT 4474 9247 4458 9237 

HAIL...1.25IN
WIND...<50MPH
 
$$

JPC

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 3, 5:08 PM CDTSevere Thunderstorm WarningMPXSaint Croix52 min
May 3, 5:21 PM CDTSpecial Weather StatementMPXPierce54 min
May 3, 5:58 PM CDTSevere Thunderstorm WarningMPXDunn, Pierce, Saint Croix62 min
May 3, 6:26 PM CDTSpecial Weather StatementMPXPepin34 min
May 3, 6:53 PM CDTSevere Thunderstorm WarningMPXChippewa, Dunn, Eau Claire, Pepin67 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2015Every severe thunderstorm warning in 2015

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.