Alert archive / Wisconsin / Tornado Warnings in 2008

Tornado Warning 8, NWS Twin Cities, MN

May 25, 2008Polk County, Saint Croix County, Wisconsin

NWS Twin Cities, MN issued this tornado warning at May 25, 2008, 5:13 PM CDT for Polk County, Saint Croix County, Wisconsin. It was in force for 47 min. 7 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 25, 2008, 5:13 PM CDT (22:13 UTC)
Expired: May 25, 2008, 6:00 PM CDT
In force: 47 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon

Counties Polk County, WI, Saint Croix County, WI

What was reported inside it

Time	Report	Where	Remark
May 25, 5:23 PM CDT	HAIL 0.75	5 W Amery, WI
May 25, 5:30 PM CDT	TSTM WND DMG	1 Se Star Prairie, WI	SIDING BLOWN OFF SHED AND WRAPPED AROUND TREE TRUNK. TREES DOWN.
May 25, 5:40 PM CDT	TSTM WND DMG	S Deer Park, WI	FEW LARGE TREES DOWN.
May 25, 5:55 PM CDT	HAIL 3	Star Prairie, WI
May 25, 6:02 PM CDT	HAIL 1	1 S Star Prairie, WI
May 25, 6:04 PM CDT	HAIL 1.75	2 Nne New Richmond, WI	REPORT TAKEN AT NEW RICHMOND AIRPORT.
May 25, 6:06 PM CDT	HAIL 1.75	1 Nw New Richmond, 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 93 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 
WFUS53 KMPX 252214
TORMPX
WIC095-109-252300-
/O.NEW.KMPX.TO.W.0008.080525T2213Z-080525T2300Z/

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

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN POLK COUNTY IN NORTHWEST WISCONSIN...
  NORTHERN ST. CROIX COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 600 PM CDT

* AT 512 PM CDT...RADAR AND TRAINED SPOTTERES WERE TRACKING A 
  SEVERE STORM WITH STRONG ROTATION. THE MOST DANGEROUS PART OF
  THE STORM WAS 5 MILES SOUTHWEST OF EAST FARMINGTON...OR ABOUT
  7 MILES NORTHWEST OF SOMERSET...AND MOVING EAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  EAST FARMINGTON...
  HUNTINGTON...
  STAR PRAIRIE...
  WANDEROOS...
  DERONDA...
  LITTLE FALLS...
  DEER PARK...
  AMERY...
  CYLON...
  CLEAR LAKE...
  FOREST...
  CLAYTON...

THIS STORM PRODUCED A TORNADO IN ANOKA COUNTY.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4510 9216 4514 9274 4516 9274 4517 9276
      4527 9276 4530 9276 4536 9217
TIME...MOT...LOC 2213Z 269DEG 41KT 4520 9276

$$

RAH/TRH

2 follow-up statements

000 
WWUS53 KMPX 252222
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
520 PM CDT SUN MAY 25 2008

WIC095-109-252300-
/O.CON.KMPX.TO.W.0008.000000T0000Z-080525T2300Z/
POLK WI-ST. CROIX WI-
520 PM CDT SUN MAY 25 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR NORTHERN
ST. CROIX AND SOUTHERN POLK COUNTIES...

AT 516 PM CDT...WEATHER SERVICE DOPPLER RADAR AND TRAINED SPOTTERS
INDICATED A SEVERE THUNDERSTORM WITH STRONG ROTATION. THE MOST 
DANGEROUS PART OF THE STORM WAS LOCATED 4 MILES SOUTH OF EAST
FARMINGTON...OR ABOUT 5 MILES NORTH OF SOMERSET...MOVING EAST
AT 45 MPH.

A TORNADO DID TOUCH DOWN NEAR HUGO IN WASHINGTON COUNTY WITH THIS
STORM.

OTHER LOCATIONS IN THE WARNING INCLUDE WANDEROOS...LITTLE FALLS...
HUNTINGTON...FOREST...EAST FARMINGTON...DERONDA...CYLON...STAR
PRAIRIE...DEER PARK AND CLEAR LAKE.

LAT...LON 4510 9216 4514 9274 4516 9274 4517 9276
      4527 9276 4530 9276 4536 9217
TIME...MOT...LOC 2220Z 269DEG 41KT 4520 9265

$$

RAH/TRH

000 
WWUS53 KMPX 252237
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
536 PM CDT SUN MAY 25 2008

WIC095-109-252300-
/O.CON.KMPX.TO.W.0008.000000T0000Z-080525T2300Z/
POLK WI-ST. CROIX WI-
536 PM CDT SUN MAY 25 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR
NORTHEASTERN ST. CROIX AND SOUTHERN POLK COUNTIES...

AT 533 PM CDT...WEATHER SERVICE DOPPLER RADAR AND TRAINED SPOTTERS
INDICATED A SEVERE THUNDERSTORM WITH STRONG ROTATION. THE MOST
DANGEROUS PART OF THE STORM WAS LOCATED 3 MILES WEST OF DEER PARK
...OR ABOUT 13 MILES NORTHEAST OF SOMERSET...AND MOVING EAST AT 47 MPH.

THIS STORM PRODUCED A TORNADO AND SIGNFICANT DAMAGE IN HUGO IN
WASHINGTON COUNTY. SEEK SHELTER IMMEDIATELY

OTHER LOCATIONS IN THE WARNING INCLUDE WANDEROOS...LITTLE FALLS...
FOREST...DERONDA...STAR PRAIRIE...DEER PARK...CLEAR LAKE...AMERY AND
CLAYTON.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4510 9216 4514 9246 4516 9249 4517 9251
      4525 9259 4530 9264 4536 9217
TIME...MOT...LOC 2236Z 269DEG 41KT 4520 9239

$$

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, 5:09 PM CDT	Severe Thunderstorm Warning	MPX	Polk	51 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

Tornado Warnings in Wisconsin, 2008 Every tornado warning in 2008 Tornadoes 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.