Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 57, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 29, 1987, 3:57 PM CDT for Milwaukee County, Racine County, Wisconsin. It was in force for 33 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 29, 1987, 3:57 PM CDT (20:57 UTC)
- Expired
- Jul 29, 1987, 4:30 PM CDT
- In force
- 33 min
- Issued by
- NWS Milwaukee, WI
- Area
- Whole counties
Counties Milwaukee County, WI, Racine 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 29, 4:10 PM CDT | Thunderstorm Wind 52 | Racine, 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, 9.0 hours before the alert went out and 179 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
- 633 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 789 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 29, 1:29 PM CDT, 2 hours 28 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE WI 130 PM CDT WED JUL 29 1987 ...SEVERE THUNDERSTORM WATCH FOR PARTS OF EAST AND CENTRAL WISCONSIN TIL 600 PM CDT... AT 120 PM...RADAR SHOWED A LINE OF STRONG THUNDERSTORMS FROM NORTHEAST WAUSHARA COUNTY...TO CENTRAL MARQUETTE COUNTY OR ABOUT 30 MILES NORTH OF MADISON. THESE STORMS WERE MOVING SOUTHEAST AT 30 MPH AND WILL MOVE INTO WESTERN FOND DU LAC COUNTY AROUND 145 PM CDT OR SHORTLY THEREAFTER. THE SOUTHERN END OF THESE STORMS MAY REACH THE NORTHWEST PART OF DODGE COUNTY ALSO AROUND 145 PM CDT. OTHER STRONG THUNDERSTORMS HAD DEVELOPED RAPIDLY IN SHEBOYGAN COUNTY... ABOUT 10 MILES WEST OF SHEBOYGAN FALL. THESE STORMS WILL CONTINUE IN SHEBOYGAN COUNTY THROUGH 215 PM CDT. ^ GUSTY AND VERY STRONG WINDS...FREQUENT AND DANGEROUS LIGHTNING STRIKES VERY HEAVY RAIN AND HAIL WILL BE POSSIBLE WITH THESE STORMS. BOATING INTERESTS OFF THE WEST SHORE OF LAKE MICHIGAN SHOULD BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS...AND BE READY TO SEEK SAFE HARBOR. STUREY
Special weather statement, Jul 29, 2:13 PM CDT, 1 hour 44 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MADISON WI 215 PM CDT WED JUL 29 1987 ...SEVERE THUNDERSTORM WARNING FOR GREEN LAKE AND MARQUETTE COUNTIES HAS EXPIRED... ...SEVERE THUNDERSTORM WARNING FOR WAUSHARA COUNTY WAS CANCELLED AT 152 PM CDT... ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 6 PM CDT FOR PARTS OF CENTRAL AND EASTERN WISCONSIN... AT 210 PM CDT WEATHER RADAR INDICATED AN AREA OF SHOWERS AND THUNDER- STORMS IN EAST-CENTRAL WISCONSIN EXTENDING FROM 40 MILES NORTH OF MADISON TO 10 MILES EAST OF FON DU LAC OR ABOUT MIDWAY BETWEEN GREEN BAY AND MILWAUKEE. THIS AREA WAS MOVING TO THE EAST SOUTHEAST AT ABOUT 30 MPH. THE AREA OF STORMS OVER MARQUETTE AND GREEN LAKE COUNTY HAS DECREASED IN INTENSITY AND NO LONGER ARE CONSIDERED A THREAT THERE. THE HEAVIEST RAINFALL AREA WAS NOTED 10 MILES EAST OF CAMPBELLSPORT OR ABOUT 30 MILES NORTH OF MILWAUKEE. NO SEVERE WEATHER HAS BEEN REPORTED TO THIS OFFICE SINCE 100 PM CDT. ADDISON
Special weather statement, Jul 29, 2:42 PM CDT, 1 hour 15 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MADISON WI 240 PM CDT WED JUL 29 1987 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 6 PM CDT FOR CENTRAL AND EASTERN WISCONSIN... AT 240 PM CDT WEATHER RADAR INDICATED AN AREA OF SHOWERS AND THUNDER- STORMS IN EAST-CENTRAL WISCONSIN EXTENDING FROM FOX LAKE TO WEST BEND TO GRAFTON OR FROM 45 MILES NORTHWEST TO 15 MILES NORTH OF MILEWAUKEE. THIS AREA WAS MOVING TO THE EAST SOUTHEAST AT ABOUT 30 MPH". VERY HEAVY RAIN WAS NOTED FIVE MILES EAST OF FOX LAKE AND FIVE MILES NORTHWEST OF OF GRAFTON. MOST OF THIS ACTIVITY WAS HEADING FOR THE MILWAUKEE AREA AND SHOULD BE THERE ABOUT 330 PM CDT. ADDISON
Special weather statement, Jul 29, 3:11 PM CDT, 46 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MADISON WI 315 PM CDT WED JUL 29 1987 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 6 PM CDT FOR CENTRAL AND EASTERN WISCONSIN... AT
Special weather statement, Jul 29, 3:15 PM CDT, 42 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MADISON WI 315 PM CDT WED JUL 29 1987 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 6 PM CDT FOR CENTRAL AND EASTERN WISCONSIN... AT 310 PM CDT WEATHER RADAR INDICATED AN AREA OF SHOWERS AND THUNDER- STORMS OVER SOUTHEASTERN WISCONSIN MOVING TO THE SOUTHEAST AT ABOUT 30 MPH. THE AREA OF STORMS WAS NOTED BETWEEN MAYVILLE..8 MILES SOUTH OF GRAFTON AND 12 MILES NORTH-NORTHWEST OF WAUKESHA OR NORTHWBEST TO NORTH OF MILWAUKEE ABOUT 25 AND 10 MILES RESPECTIVELY. NO SEVERE WEATHER HAS BEEN REPORTED TO THIS OFFICE SINCE 1 PM CDT. ADDISON
Special weather statement, Jul 29, 3:39 PM CDT, 18 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MADISON WI 340 PM CDT WED JUL 29 1987 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 6 PM CDT FOR CENTRAL AND EASTERN WISCONSIN... AT 335 PM CDT WEATHER RADAR INDICATED AN AREA OF SHOWERS AND THUNDER- STORMS OVER SOUTHEASTERN WISCONSIN MOVING TO THE SOUTHEAST AT ABOUT 30 MPH. THE AREA OF STORMS WAS NOTED BETWEEN WEST BEND TO 10 MILES NORTHWEST OF WAUKESHA TO MILWAUKEE..OR GENERALLY WEST NORTHWESTd OF MILWAUKEE. NO SEVERE WEATHER HAS BEEN REPORTED TO THIS OFFICE SINCE 1 PM CDT. ADDISON
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 1:43 PM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac | 57 min |
| Jul 29, 2:12 PM CDT | Severe Thunderstorm Warning | MKX | Ozaukee, Sheboygan | 63 min |
| Jul 29, 2:28 PM CDT | Severe Thunderstorm Warning | MKX | Washington | 62 min |
| Jul 29, 2:41 PM CDT | Tornado Warning | MKX | Washington | 49 min |
| Jul 29, 2:47 PM CDT | Tornado Warning | MKX | Ozaukee | 43 min |
| Jul 29, 3:08 PM CDT | Severe Thunderstorm Warning | MKX | Milwaukee, Waukesha | 52 min |
| Jul 29, 3:50 PM CDT | Tornado Warning | MKX | Waukesha | 40 min |
| Jul 29, 6:03 PM CDT | Tornado Warning | MKX | Clark | 43 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.