Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 84, NWS Twin Cities, MN

May 31, 2008Pierce County, Wisconsin; Goodhue County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 31, 2008, 8:21 PM CDT for Pierce County, Wisconsin; Goodhue County, Minnesota. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 31, 2008, 8:21 PM CDT (01:21 UTC)
Expired
May 31, 2008, 9:02 PM CDT
In force
41 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon

Counties Goodhue County, MN, Pierce County, WI

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 31, 2:51 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.4 hours before the alert went out and 95 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 00:00Z on 2008-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 137 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2008-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 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
137 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
2074 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
153 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 010121
SVRMPX
MNC049-WIC093-010215-
/O.NEW.KMPX.SV.W.0084.080601T0121Z-080601T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
821 PM CDT SAT MAY 31 2008

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN GOODHUE COUNTY IN SOUTHEAST MINNESOTA...
  SOUTHERN PIERCE COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 915 PM CDT

* AT 816 PM CDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
  THUNDERSTORMS...CAPABLE OF PRODUCING PENNY SIZE HAIL AND DAMAGING
  WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 7 MILES NORTHWEST OF ELLSWORTH TO 11 MILES NORTHWEST
  OF RED WING...AND MOVING SOUTHEAST AT 36 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ELLSWORTH...
  RED WING...
  BAY CITY...
  PLUM CITY...
  DIAMOND BLUFF...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS AND LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT
SATURDAY EVENING FOR SOUTHERN MINNESOTA.

LAT...LON 4476 9214 4456 9214 4455 9232 4433 9272
      4463 9274 4472 9273 4479 9256
TIME...MOT...LOC 0121Z 299DEG 31KT 4481 9250 4467 9269

$$

MB
1 follow-up statement
000 
WWUS53 KMPX 010202
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
902 PM CDT SAT MAY 31 2008

MNC049-WIC093-010212-
/O.CAN.KMPX.SV.W.0084.000000T0000Z-080601T0215Z/
GOODHUE MN-PIERCE WI-
902 PM CDT SAT MAY 31 2008

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN PIERCE AND
NORTHEASTERN GOODHUE COUNTIES IS CANCELLED...

DOPPLER RADAR INDICATED THAT THE SEVERE STORM HAD WEAKENED. 
THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED. 
ADDITIONAL THUNDERSTORMS WILL OCCUR ACROSS THE AREA OVER THE NEXT 
HOUR OR 2. REMAIN ALERT FOR POSSIBLE STATEMENTS OR WARNINGS.

LAT...LON 4476 9214 4456 9214 4455 9232 4433 9272
      4463 9274 4472 9273 4479 9256
TIME...MOT...LOC 0202Z 299DEG 31KT 4464 9207 4450 9226

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 31, 7:23 PM CDTTornado WarningMPXSaint Croix32 min
May 31, 7:40 PM CDTSevere Thunderstorm WarningMPXPierce, Saint Croix47 min
May 31, 7:00 PM CDTSevere Thunderstorm WarningMPXDakota44 min
May 31, 7:18 PM CDTTornado WarningMPXAnoka, Ramsey, Washington30 min
May 31, 7:29 PM CDTSevere Thunderstorm WarningMPXSibley19 min
May 31, 7:32 PM CDTSevere Thunderstorm WarningMPXGoodhue43 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2008Severe Thunderstorm Warnings in Minnesota, 2008Every severe thunderstorm warning in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.