Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 151, NWS Twin Cities, MN

June 25, 20024 counties in Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 25, 2002, 8:34 PM CDT for 4 counties in Wisconsin. It was in force for 56 min. 5 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: Jun 25, 2002, 8:34 PM CDT (01:34 UTC)
Expired: Jun 25, 2002, 9:30 PM CDT
In force: 56 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

Counties Barron County, WI, Dunn County, WI, Polk County, WI, Saint Croix County, WI

What was reported inside it

Time	Report	Where	Remark
Jun 25, 8:45 PM CDT	Thunderstorm Wind 50 E	Glenwood City, WI	A few trees down.
Jun 25, 8:46 PM CDT	Hail 1.75	Prairie Farm, WI
Jun 25, 9:00 PM CDT	Hail 1	Dallas, WI
Jun 25, 9:00 PM CDT	Thunderstorm Wind 50 E	Dallas, WI	Eight inch tree limbs down.
Jun 25, 9:05 PM CDT	Thunderstorm Wind 52 E	Ridgeland, WI	Few trees down.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jun 25, 6:45 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.6 hours before the alert went out and 116 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: 4448 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 1086 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 116 m²/s²
Significant tornado parameter: 2.4
Supercell composite: 16.3

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 260134
SVRMSP
WIC005-033-095-109-260230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
832 PM CDT TUE JUN 25 2002

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEAST POLK COUNTY IN NORTHWEST WISCONSIN
  BARRON COUNTY IN NORTHWEST WISCONSIN
  ST. CROIX COUNTY IN WEST CENTRAL WISCONSIN
  DUNN COUNTY IN WEST CENTRAL WISCONSIN

* UNTIL 930 PM CDT

* AT 832 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE
  HAIL FROM AMERY TO 7 MILES SOUTHEAST OF DEER PARK...WHICH IS 12
  MILES EAST OF NEW RICHMOND. THE STORM WAS MOVING EAST AT 45 MPH.

* SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...
  CLEAR LAKE.
  FOREST.
  CONNORSVILLE.
  PRAIRIE FARM.


THIS IS A DANGEROUS STORM WITH LARGE HAIL...STAY INDOORS AWAY FROM
WINDOWS.

LAT...LON 4518 9251 4497 9250 4508 9192 4528 9178
          4542 9203

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 8:00 PM CDT	Tornado Warning	MPX	Polk, Saint Croix	30 min
Jun 25, 8:19 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa	41 min
Jun 25, 9:00 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa	60 min
Jun 25, 9:07 PM CDT	Severe Thunderstorm Warning	MPX	Pierce	38 min
Jun 25, 9:08 PM CDT	Severe Thunderstorm Warning	MPX	Rusk	52 min
Jun 25, 9:29 PM CDT	Severe Thunderstorm Warning	MPX	Dunn	46 min
Jun 25, 9:37 PM CDT	Flash Flood Warning	MPX	Chippewa	4 hr
Jun 25, 9:49 PM CDT	Severe Thunderstorm Warning	MPX	Pierce	41 min
Jun 25, 9:53 PM CDT	Severe Thunderstorm Warning	MPX	Eau Claire, Pepin	37 min
Jun 25, 10:23 PM CDT	Flash Flood Warning	MPX	Dunn	3 hr
Jun 25, 10:50 PM CDT	Flash Flood Warning	MPX	Eau Claire, Pepin	3 hr

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2002 Every severe thunderstorm warning in 2002

Sources

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