Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 20, NWS Green Bay, WI
NWS Green Bay, WI issued this severe thunderstorm warning at Jun 25, 1986, 8:40 PM CDT for Marinette County, Wisconsin. It was in force for 35 min.
The area
The counties it named.
The facts
- Issued
- Jun 25, 1986, 8:40 PM CDT (01:40 UTC)
- Expired
- Jun 25, 1986, 9:15 PM CDT
- In force
- 35 min
- Issued by
- NWS Green Bay, WI
- Area
- Whole counties
County Marinette County, WI
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 1.7 hours before the alert went out and 97 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
- 1271 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 87 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 KGRB 260140 RRA SVRGRB WIC075-260215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREEN BAY WI 840 PM CDT WED JUN 25 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 915 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF NORTHEAST WISCONSIN...MARINETTE AND CENTRAL THE BAY OF GREEN BAY AT 830 PM CDT RADAR INDICATED INTENSE THUNDERSTORMS IN MARINETTE COUNTY EXTENDING FORM PESHTIGO..WHICH IS 5 MILES SOUTHWEST OF MARINETTE..TO POUND..WHICH IS 20 MILES WEST OF THE CITY OF MARINETTE..THEN NORTHWEST TO GOODMAN IN NORTHWEST MARINETTE COUNTY. THIS EXTENDS THE WARNING ISSUED AT 730 PM FOR MARINETTE COUNTY. THIS STORM MAY PRODUCE DANGEROUS LIGHTNING..STRONG GUSTY WINDS.. AND ROUGH SEAS. ALL BOATERS IN THE WARNED AREA SHOULD SEEK SAFE HARBOR AT ONCE. A SEVERE THUNDERSTORM CAN PRODUCE DAMAGING WINDS...LARGE HAIL...AND DANGEROUS LIGHTNING. LOCALLY HEAVY RAINFALL FROM A SEVERE THUNDERSTORM MAY TRIGGER FLASH FLOODING IN LOW LYING OR URBAN AREAS. IF THREATENING WEATHER APPROACHES SEEK SAFE SHELTER.
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 25, 5:39 PM CDT, 3 hours 1 minute before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 530 PM CDT WED JUN 25 1986 ...THUNDERSTORMS WITH HEAVY RAINS IN MARINETTE COUNTY... AT 530 PM CDT RADAR INDICATED A STRONG THUNDERSTORM IN NORTHERN MARINETTE COUNTY. THIS STORM MOVED SOUTH FROM SOUTHERN FLORENCE COUNTY TO MARINETTE COUNTY. THE SHERIFF DEPARTMENT IN FLORENCE COUNTY REPORTED HEAVY RAINS. LIGHTNING AND SMALL HAIL ARE ALSO POSSIBLE WITH THIS STORM. IN ADDITION TO THE$ HEAVY RAINS THE STORMS ARE ALSO MOVING SLOW TO THE SOUTH WHICH COULD CAUSE FLOODING. PERSONS IN NORTHERN MARINETTE COUNTY SHOULD BE AWARE OF THE SITUATION. TH
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 7:38 PM CDT | Severe Thunderstorm Warning | GRB | Marinette | 52 min |
| Jun 26, 6:40 PM CDT | Severe Thunderstorm Warning | GRB | Adams, Juneau | 50 min |
| Jun 26, 6:40 PM CDT | Severe Thunderstorm Warning | GRB | Green Lake, Marquette, Waushara | 50 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; the sounding from the Mesonet's radiosonde archive.