Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1988

Severe Thunderstorm Warning 21, NWS Twin Cities, MN

June 19, 1988Saint Croix County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 19, 1988, 6:30 PM CDT for Saint Croix County, Wisconsin. It was in force for 45 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 19, 1988, 6:30 PM CDT (23:30 UTC)
Expired: Jun 19, 1988, 7:15 PM CDT
In force: 45 min
Issued by: NWS Twin Cities, MN
Area: Whole counties

County Saint Croix County, WI

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

Time	Report	Where	Remark
Jun 19, 6:48 PM CDT	Hail 4.5	St. Croix, WI
Jun 19, 6:57 PM CDT	Thunderstorm Wind 0	St. Croix, WI

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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 11.5 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: 1394 J/kg
Mixed-layer CIN: -219 J/kg
Mixed-layer LCL: 1516 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 135 m²/s²
0-3 km storm-relative helicity: 110 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 
TTAA00 KMSP 192330
SVRMSP
WIC109-200015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
630 PM CDT SUN JUN 19 1988
 
THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  715 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN WEST CENTRAL WISCONSIN
          ...NORTHERN ST CROIX
 
AT 625 PM RADAR INDICATED A SEVERE THUNDERSTORM ALONG THE MINNESOTA
WISCONSIN BORDER NEAR SOMERSET WISCONSIN. THIS THUNDERSTORM WAS MOVING
SOUTHEAST AT 20 TO 25 MILES AN HOUR. THIS THUNDERSTORM HAS A HISTORY
OF STRONG WINDS CAUSED HEAVY DAMAGE TO A HOME EAST OF ST PAUL . THIS
SEVERE THUNDERSTORM SHOULD PASS SOUTH OF SUMERSET TOWARD THE CITY OF
BOARDMAN WHICH IS IN CENTRAL ST CROIX COUNTY WISCONSIN. PERSONS IN
THE PATH OF THIS STORM SHOULD TAKE APPROPRIATE PRECAUTIONS.
 
WINDS IN EXCESS OF 75 MPH..MAKE THIS A DANGEROUS STORM. YOU SHOULD
PREPARE FOR STRONG WINDS..LARGE HAIL..DEADLY LIGHTNING AND HEAVY RAIN
BY MOVING TO SHELTER IN A STRONG BUILDING. REMEMBER SEVERE
THUNDERSTORMS CAN AND DO PRODUCE TORNADOES WITH LITTLE OR NO WARNING.
DOMBROWSKI

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 5:44 PM CDT	Severe Thunderstorm Warning	MPX	Barron, Polk	41 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1988 Every severe thunderstorm warning in 1988

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.