Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 46, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 20, 1987, 3:39 PM CDT for Portage County, Wood County, Wisconsin. It was in force for 31 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 20, 1987, 3:39 PM CDT (20:39 UTC)
- Expired
- Jul 20, 1987, 4:10 PM CDT
- In force
- 31 min
- Issued by
- NWS Milwaukee, WI
- Area
- Whole counties
Counties Portage County, WI, Wood 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 20, 3:40 PM CDT | Thunderstorm Wind 56 | Wood, WI | |
| Jul 20, 3:50 PM CDT | Thunderstorm Wind 56 | Wood, 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, 8.7 hours before the alert went out and 133 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
- 3840 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 653 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 73 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 KMKE 202039 SVRMKE WIC097-141-202110- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MILWAUKEE WI 339 PM CDT MON JUL 20 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 410 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF CENTRAL WISCONSIN...PORTAGE AND WOOD AT 340 PM STORONG WINDS WERE GUSING TO NEAR 60 MPH AND WERE IN SOUTHEAST WOOD COUNTY AND NORTHWEST PORTAGE COUpNTY. SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS..LARGE HAIL AND DANGEROUS LIGHTNING. IF THREATENING WEATHER APPROACHES TAKE SHELTER. HENTZ
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, Jul 20, 3:00 PM CDT, 39 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE WI 300 PM CDT MON JUL 20 1987 ...GUSTY WINDS AHEAD OF A LINE OF THUNDERSTORMS MOVING INTO SOUTHEAST WISCONSIN... AT 300 PM A LINE OF GUSTY WINDS FROM THUNDERSTORMS IN EAST CENTRAL AND SOUTHEAST WISCONSIN HAVE PUSHED WELL AHEAD OF THE STORMS AND WERE MOVING THROUGH FOND DU LAC AND INTO NORTHERN SHEBOYGAN COUNTY. THESE WINDS WILL GUST TO NEAR 50 MPH. PERSONS AND BOATERS SHOU5LD PREPARE FOR THESE GUSTY WINDS. HENTZ
Special weather statement, Jul 20, 3:09 PM CDT, 30 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MADISON WI 308 PM CDT MON JUL 20 1987 ...SEVERE THUNDERSTOEM WATCH IN EFFECT FOR SOUTHERN WISCONSIN UNTIL 9 PM CDT... AT 300 PM CDT WEATHER RADAR INDICATED TWO AREAS OF SHOWERS AND THUNDER- STORMS OVER MUCH OF CENTRAL WISCONSIN. THESE AREAS WERE MOVING TO THE SOUTHEAST AT ABOUT 40 MPH. THE HEAVIEST RAINFALL AREAS SEEMED TO BE ON A LINE THAT EXTENDED FROM WAUTOMA TO JUST SOUTH OF OSHKOSH TO MANITOWOC OR ABOUT 70 MILES NORTH OF MADISON TO 30 MILES SOUTHEST OF GREEN BAY. AT 212 PM CDT WIND DAMAGE WAS REPORTED IN POYSIPPI BY THE WAUSHARA COUNTY SHERIFF. THE SECOND AREA OF SHOWERS AND THUNDERSTORMS FOLLOWS THE FIRST AREA BY ABOUT 50 MILES=. IN THAT AREA A SMALL LINE OF HEAVY RAIN WAS NOTED FROM NEILSVILLE TO AUBURNDALE OR ABOUT 45 MILES SOUTHWEST OF WAUSAU TO 25 MILES SOUTH SOUTHWEST OF WAUSAU. NO SEVERE WEATHER HAS BEEN REPORTED FROM THIS SECOND AREA. ADDISON
Special weather statement, Jul 20, 3:14 PM CDT, 25 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE WI 310 PM CDT MON JUL 20 1987 ...INTENSE THUNDERSTORMS MOVING INTO SOUTHEAST WISCONSIN... AT 310 PM WEATHER RADAR INDICATED A LINE OF INTENSE THUNDERSTORMS FROM OSHKOSH TO NORTH OF SHEBOYGAN. THESE STORMS WILL SAG INTO FOND DU LAC AND SHEBOYGAN COUNTIES AND WILL LIKELY PRODUCE STRONG GUSTY WINDS AND INTENSE RAINS. PEOPLE IN THE FOND DU LAC AND SHEBOYGAN AREA SHOULD EXPECT THESEB STORMS FROM THROUGH 400 PM. HENTZ
Special weather statement, Jul 20, 3:24 PM CDT, 15 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE WI 330 PM CDT MON JUL 20 1987 ...STRONG THUNDERSTORMS ACROSS NORTH CENTRAL WISCONSIN... AT 330 PM WEATHER RADAR SHOWED A LINE OF STRONG THUNDERSTORMS EXTENDING FROM 40 MILES NORTHEAST OF WAUSAU TO JUST SOUTHEAST OF WAUSAU TO JUST WEST OF WISCONSIN RAPIDS. STRONG GUSTY WINDS AND SOME HAIL ARE POSSIBLE WITH THESE STORMS. WINDS OF UP TO 50 MPH CAN BE EXPECTED. PEOPLE IN THE PATHT OF THESE STRONG STORMS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND BE PREPARED TO MOVE TO A PLACE OF SAFETY. HENTZ
Special weather statement, Jul 20, 3:29 PM CDT, 10 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MADISON WI 325 PM CDT MON JUL 20 1987 ...SEVERE THUNDERSTOEM WATCH IN EFFECT FOR SOUTHERN WISCONSIN UNTIL 9 PM CDT... AT 322 PM CDT WEATHER RADAR INDICATED TWO AREAS OF SHOWERS AND THUNDER- STORMS OVER MUCH OF CENTRAL WISCONSIN. THESE AREAS WERE MOVING TO THE SOUTH-SOUTHEAST AT ABOUT 40 MPH. THE HEAVIEST RAINFALL AREAS SEEMED TO BE ON A LINE THAT EXTENDED FROM REDGRANITE TO FON DU LAC TO 10 MILES SOUTH OF MANITOWOC OR ABOUT 60 MILES NORTH OF MADISON TO 40 MILES SOUTH SOUTHEST OF GREEN BAY. THE SECOND AREA OF SHOWERS AND THUNDERSTORMS FOLLOWS THE FIRST AREA BY ABOUT 50 MILES. IN THAT AREA A LINE OF HEAVY RAIN WAS NOTED FROM 10 MILES ZNORTHWEST OF BLACK RIVER FALLS TO DEXTERVILLE TO STEVENS POINT OR ABOUT 30 MILES NORTH NORTHEAST OF LACROSSE TO 20 MILES SOUTH OF WAUSAU. NO SEVERE WEATHER HAS BEEN REPORTED SINCE 212 PM CDT IN SOUTH CENTRAL WISCONSIN. ADDISON
Special weather statement, Jul 20, 3:36 PM CDT, 3 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE WI 335 PM CDT MON JUL 20 1987 ...GUSTY WINDS AHEAD OF A LINE OF THUNDERSTORMS MOVING INTO NORTHERN WASHINGTON AND OZAUKEE COUNTY... AT 335 PM GUSTY WINDS FROM THUNDERSTORMS IN NORTHERN FOND DU LAC AND SHEYBOYGAN COUNTIES HAVE PUSHED WELL AHEAD OF THE STORMS AND WERE MOVING THROUGH NORTHERN WASHINGTON AND WILL PUSH INTO OZAUKEE COUNTY. THESE WINDS WILL GUST TO NEAR 50 MPH AND `WILL AFFECT THE PORT WASHINGTON AREA. PEAOPLE IN THESE AREAS AND ESPECIALLY BOATERS SHOULD PREPARE FOR THESE GUSTY WINDS. HENTZ
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 11:04 AM CDT | Severe Thunderstorm Warning | MKX | Price, Taylor | 56 min |
| Jul 20, 11:29 AM CDT | Severe Thunderstorm Warning | MKX | Clark | 61 min |
| Jul 20, 11:46 AM CDT | Severe Thunderstorm Warning | MKX | Lincoln, Oneida | 44 min |
| Jul 20, 11:46 AM CDT | Severe Thunderstorm Warning | MKX | Vilas | 44 min |
| Jul 20, 12:17 PM CDT | Severe Thunderstorm Warning | MKX | Forest, Langlade | 58 min |
| Jul 20, 12:28 PM CDT | Severe Thunderstorm Warning | MKX | Marathon | 62 min |
| Jul 20, 1:03 PM CDT | Severe Thunderstorm Warning | MKX | Portage | 57 min |
| Jul 20, 4:49 PM CDT | Severe Thunderstorm Warning | MKX | Dodge, Fond du Lac | 56 min |
| Jul 20, 6:12 PM CDT | Severe Thunderstorm Warning | MKX | Washington, Waukesha | 18 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 1987Every severe thunderstorm warning in 1987
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.