Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 26, NWS Twin Cities, MN

May 25, 2008Polk County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at May 25, 2008, 5:09 PM CDT for Polk County, Wisconsin. It was in force for 51 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 25, 2008, 5:09 PM CDT (22:09 UTC)
Expired: May 25, 2008, 6:00 PM CDT
In force: 51 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon

County Polk County, WI

What was reported inside it

Time	Report	Where	Remark
May 25, 5:23 PM CDT	HAIL 0.75	5 W Amery, WI

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

Issued	Product	Office	Lasted
May 25, 2:04 PM CDT	Tornado Watch PDS	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.2 hours before the alert went out and 106 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 58 J/kg
Mixed-layer CIN: -266 J/kg
Mixed-layer LCL: 641 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -3.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 252209
SVRMPX
WIC095-252300-
/O.NEW.KMPX.SV.W.0026.080525T2209Z-080525T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
509 PM CDT SUN MAY 25 2008

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  POLK COUNTY IN NORTHWEST WISCONSIN...

* UNTIL 600 PM CDT

* AT 508 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING LARGE DAMAGING HAIL UP TO GOLF BALL SIZE AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  OSCEOLA...OR ABOUT OVER OSCEOLA...AND MOVING EAST AT 41 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ST CROIX FALLS...
  BALSAM LAKE...
  LUCK...
  FREDERIC...
  AMERY...
  BRESSER...

THIS STORM HAS A HISTORY OF PRODUCING GOLF BALL SIZE HAIL.

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 WILL UPROOT TREES AND DOWN POWER LINES.
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 TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT SUNDAY EVENING FOR
EAST CENTRAL MINNESOTA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL
900 PM CDT SUNDAY EVENING FOR SOUTHEASTERN MINNESOTA AND NORTHWESTERN
WISCONSIN.

LAT...LON 4522 9275 4545 9263 4552 9272 4554 9272
      4564 9288 4566 9283 4565 9259 4572 9252
      4571 9217 4521 9217
TIME...MOT...LOC 2209Z 260DEG 36KT 4533 9266

$$

RAH/TRH

The office that day

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

Issued	Product	Office	Counties	Lasted
May 25, 5:13 PM CDT	Tornado Warning	MPX	Polk, Saint Croix	47 min
May 25, 5:42 PM CDT	Severe Thunderstorm Warning	MPX	Barron	48 min
May 25, 5:47 PM CDT	Severe Thunderstorm Warning	MPX	Polk, Saint Croix	58 min
May 25, 5:50 PM CDT	Tornado Warning	MPX	Barron, Dunn	40 min
May 25, 6:24 PM CDT	Severe Thunderstorm Warning	MPX	Dunn	51 min
May 25, 6:26 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Pierce	49 min
May 25, 6:28 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Rusk	62 min
May 25, 6:51 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Dunn, Eau Claire	54 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2008 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.