Alert archive / Wisconsin / Tornado Warnings in 1986
Tornado Warning 5, NWS Green Bay, WI
NWS Green Bay, WI issued this tornado warning at Jul 12, 1986, 4:53 PM CDT for Columbia County, Sauk County, Wisconsin. It was in force for 37 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
- Jul 12, 1986, 4:53 PM CDT (21:53 UTC)
- Expired
- Jul 12, 1986, 5:30 PM CDT
- In force
- 37 min
- Issued by
- NWS Green Bay, WI
- Area
- Whole counties
Counties Columbia County, WI, Sauk 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 |
|---|---|---|---|
| Jul 12, 5:20 PM CDT | Hail 1.75 | Columbia, WI | |
| Jul 12, 5:25 PM CDT | Thunderstorm Wind 0 | Columbia, 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
Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.9 hours before the alert went out and 169 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 660 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMSN 122153 TORMSN WIC021-111-122230- BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MADISON WI 453 PM CDT SAT JUL 12 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 530 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF SOUTH CENTRAL WISCONSIN...COLUMBIA AND EASTERN SAUK AT 446 PM CDT NUMEROUS FUNNEL CLOUDS WERE REPORTED BY THE SAUK COUNTY SHERIFF ABOUT 2 MILES EAST OF LAKE DELTON WISCONSIN OR ABOUT 25 MILES NORTHWEST OF MADISON. IF THREATENING WEATHER APPROACHES YOU...TAKE COVER IMMEDIATELY. A BASEMENT..INTERIOR HALLWAY OR ROOM ON THE LOWEST FLOOR IS THE SAFEST PLACE IN MOST BUILDINGS. ADDISON
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 2:28 PM CDT | Tornado Warning | GRB | Adams, Marquette | 52 min |
| Jul 12, 5:20 PM CDT | Tornado Warning | GRB | Columbia | 40 min |
| Jul 12, 5:46 PM CDT | Severe Thunderstorm Warning | GRB | Green | 29 min |
Nearby
Tornado Warnings in Wisconsin, 1986Every tornado warning in 1986Tornadoes 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.