Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 177, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 26, 1986, 4:53 PM CDT for Chippewa County, Eau Claire County, Wisconsin. It was in force for 47 min. 3 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
- Sep 26, 1986, 4:53 PM CDT (21:53 UTC)
- Expired
- Sep 26, 1986, 5:40 PM CDT
- In force
- 47 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Chippewa County, WI, Eau Claire 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 |
|---|---|---|---|
| Sep 26, 4:59 PM CDT | Hail 0.75 | Chippewa, WI | |
| Sep 26, 5:00 PM CDT | Hail 1.75 | Eau Claire, WI | |
| Sep 26, 5:20 PM CDT | Hail 1.75 | Eau Claire, 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, 9.9 hours before the alert went out and 183 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
- 165 J/kg
- Mixed-layer CIN
- -224 J/kg
- Mixed-layer LCL
- 1109 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 126 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMSP 262153 SVRMSP WIC017-035-262240- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MINNEAPOLIS MN 453 PM CDT FRI SEP 26 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 540 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF WEST CENTRAL WISCONSIN...CHIPPEWA AND NORTHERN EAU CLAIRE AT....445PM CDT SEVERE THUNDERSTORMS WITH THE STRONG POTENTIAL FOR HAIL WERE LOCATED IN WESTERN EAU CLAIRE AND CHIPPEWA COUNTIES OF WEST CENTRAL WISCONSIN. AT 455 PM THE STRONGEST STORM WAS LOCATED NEAR THE CITY OF EAU CLAIRE AND WEST OF BLOOMER IN CHIPPEWA COUNTY. THIS WARNING INCLUDES THE CITIES OF EAU CLAIRE AND CHIPPEWA FALLS. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR. REMEMBER SEVERE THUNDERSTORMS PRODUCE STRONG DAMAGING WINDS..LARGE HAIL AND FREQUENT LIGHTNING 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. RICHARDSON
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 26, 3:33 PM CDT | Severe Thunderstorm Warning | MPX | Dunn, Pierce, Saint Croix | 57 min |
| Sep 26, 4:39 PM CDT | Severe Thunderstorm Warning | MPX | Barron | 51 min |
| Sep 26, 5:50 PM CDT | Severe Thunderstorm Warning | MPX | Eau Claire | 30 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.