Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 29, NWS Green Bay, WI
NWS Green Bay, WI issued this severe thunderstorm warning at Jul 18, 1986, 2:31 PM CDT for Door County, Wisconsin. It was in force for 59 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
- Jul 18, 1986, 2:31 PM CDT (19:31 UTC)
- Expired
- Jul 18, 1986, 3:30 PM CDT
- In force
- 59 min
- Issued by
- NWS Green Bay, WI
- Area
- Whole counties
County Door 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 18, 2:35 PM CDT | Hail 1 | Door, 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, 7.5 hours before the alert went out and 71 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
- 2603 J/kg
- Mixed-layer CIN
- -123 J/kg
- Mixed-layer LCL
- 894 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KGRB 181933 SVRGRB WIC029-182030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREEN BAY WI 231 PM CDT FRI JUL 18 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 330 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF NORTHEAST WISCONSIN...EXTREME NORTHERN DOOR A SEVERE THUNDERSTORM WAS INDICATED BY RADAR JUST TO THE NORTHWEST AND NORTH OF WASHINGTON ISLAND. THIS STORM IS MOVING SOUTHEAST AT 30 TO 35 MILES AN HOUR. REPORTS FROM THE COAST GUARD INDICATE WINDS OF 81 MPH WITH THIS SEVERE STORM. THIS STORM MAY PRODUCE DANGEROUS LIGHTNING..STRONG GUSTY WINDS.. AND ROUGH SEAS. ALL BOATERS IN THE WARNED AREA SHOULD SEEK SAF3E HARBOR AT ONCE.
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 3:40 PM CDT | Severe Thunderstorm Warning | GRB | Door | 65 min |
| Jul 18, 4:42 PM CDT | Severe Thunderstorm Warning | GRB | Door | 63 min |
| Jul 18, 4:42 PM CDT | Severe Thunderstorm Warning | GRB | Marinette, Oconto | 63 min |
| Jul 18, 4:59 PM CDT | Severe Thunderstorm Warning | GRB | Brown | 41 min |
| Jul 18, 5:43 PM CDT | Severe Thunderstorm Warning | GRB | Brown, Oconto | 62 min |
| Jul 18, 5:43 PM CDT | Severe Thunderstorm Warning | GRB | Kewaunee, Manitowoc | 62 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.