Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 36, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 10, 1986, 9:21 PM CDT for Chippewa County, Wisconsin. It was in force for 39 min. 1 report 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 10, 1986, 9:21 PM CDT (02:21 UTC)
- Expired
- Jun 10, 1986, 10:00 PM CDT
- In force
- 39 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Chippewa 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 10, 9:50 PM CDT | Hail 1.75 | Chippewa, 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 00:00Z, 2.4 hours before the alert went out and 184 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.
- Mixed-layer CAPE
- 29 J/kg
- Mixed-layer CIN
- -130 J/kg
- Mixed-layer LCL
- 601 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMSP 110221 SVRMSP WIC017-110300- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MINNEAPOLIS MN 921 PM CDT TUE JUN 10 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1000 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF WEST CENTRAL WISCONSIN...CHIPPEWA AT 920 PM CDT..RADAR INDICATED A SEVERE THUNDERSTORM JUST WEST AND NORTHWEST OF EAU CLAIRE WISCONSIN. THE THUNDERSTORM WAS MOVING TO THE NORTHEAST AT 35 TO 40 MILES AN HOUR. SOME CITIES IN THE PATH OF THIS SEVERE THUNDERSTORM ARE EAU CLAIRE ..CHIPPEWA FALLS AND JIM FALLS. REMEMBER SEVERE THUNDERSTORMS PRODUCE STRONG DAMAGING WINDS..LARGE HAIL AND FREQUENT LeIGHTNING STRIKES. ALSO SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE OR NO ADVANCE WARNING..SO BE ON THE LOOKOUT AND BE PREPARED TO MOVE TO A PLACE OF SAFETY IF ONE IS SPOTTED. WILLIS
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jun 10, 4:58 PM CDT, 4 hours 23 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 440 PM TUE CDT JUN 10 1986 ..THUNDERSTORMS PRODUCING HEAVY RAINS OVER EAST CENTRAL MINNESOTA.. THUNDERSTORMS CONTINUED OVER THE NORTHERN SECTIONS OF THE TWIN CITIES METROPOLITAN AREA..MAINLY OVER CENTRAL AND EASTERN ANOKA COUNTY. THESE THUNDERSTORMS HAVE BEEN PRODUCING VERY HEAVY RAINFALL IN A SHORT PERIOD OF TIME AND MAY PRODUCE SOME LOCALIZED FLOODING OF STREETS AND SMALLER STREAMS. THESE THUNDERSTORMS HAVE ALSO BEEN PRODUCING STRONG AND GUSTY WINDS IN THESE SAME AREAS. THE CURRENT MOVEMENT TO THE NORTHEAST AT 30 TO 35 MILES AN HOUR WILL TAKE THESE THUNDERSTORMS THROUGH NORTHERN WASHINGTON AND SOUTHERN CHISAGO COUNTIES BY 530 PM AND INTO THE EXTREME WESTERN WISCONSIN COUNTIES OF POLK AND NORTHERN ST CROIX THROUGH 600PM. AT THIS TIME NO SEVERE WEATHER HAS BEEN REPORTED BUT STRONG WINDS.. TORRENTIAL RAIN..SMALL HAIL AND FREQUENT LIGHTNING STRIKES ARE LIKELY. OTHER SHOWERS AND THUNDERSTORMS CONTINUED OVER WIDELY SCATTERED SECTIONS OF SOUTHERN AND CENTRAL MINNESOTA AS WEL AS NORTHWEST WISCONSIN. MOVEMENT WAS TO THE EAST NORTHEAST AT 30 MILES AN HOUR. SWANBERG
Special weather statement, Jun 10, 7:11 PM CDT, 2 hours 10 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 708 PM TUE CDT JUN 10 1986 ..STRONG THUNDERSTORMS DEVELOPING OVER SOUTHERN MINNESOTA.. STRONG THUNDERSTORMS HAVE BEEN DEVELOPING RAPIDLY OVER SOUTH CENTRAL INTO EAST CENTRAL MINNESOTA. AT 655 PM STRONGEST THUNDERSTORMS WERE LOCATED OVER SOUTHERN AND WESTERN PARTS OF THE TWIN CITIES METROPOLITAN AREA MAINLY OVER SCOTT..CARVER INTO SOUTHERN HENNEPIN COUNTIES. FUTHER TO THE SOUTHWEST..OTHER STRONG THUNDERSTORMS WERE LOCATED ALONG AND NORTH OF THE MINNESOTA RIVER OVER NICOLLET AND WESTERN SIBLEY COUNTIES. MOVEMENT ON THESE THUNDERSTORMS WAS TO THE EAST NORTHEAST AT 35 TO 40 MILES AN HOUR. NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE THUNDERSTORMS BUT AT 700 PM MARBLE SIZE HAIL ALONG WITH HEAVY RAIN OCCURRED IN THE SAVAGE AREA OF NORTHERN SCOTT COUNTY. INDICATIONS AT THIS TIME WOULD BE FOR THE POSSIBILITY OF SMALL HAIL ..HEAVY RAINS AND SOME LIGHTNING STRIKES AS THESE THUNDERSTORMS CONTINUE TO MOVE THROUGH SOUTHERN MINNESOTA. IN WISCONSIN..SCATTERED SHOWERS AND THUNDERSTORMS..SOME OF THEM STILL RATHER STRONG CONTINUED OVER MAINLY THE NORTHWEST PART OF THE STATE BETWEEN JHAYWARD AND EAU CLAIRE. A DECREASE IN THUNDERSTORM INTENSITY HAD OCCURRED SINCE 540 PM. MOVEMENT WAS NORTHEAST AT 35 TO 40 MILES AN HOUR. SWANBERG
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 7:48 PM CDT | Severe Thunderstorm Warning | MPX | Saint Croix | 42 min |
| Jun 10, 10:01 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Dunn, Eau Claire | 44 min |
| Jun 10, 10:01 PM CDT | Severe Thunderstorm Warning | MPX | Pepin | 44 min |
| Jun 10, 10:43 PM CDT | Severe Thunderstorm Warning | MPX | Eau Claire | 17 min |
| Jun 11, 3:25 PM CDT | Severe Thunderstorm Warning | MPX | Saint Croix | 35 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 1986Every severe thunderstorm warning in 1986
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.