Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 57, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 20, 1987, 1:50 PM CDT for Dunn County, Eau Claire County, Pepin County, Wisconsin. It was in force for 40 min.
The area
The counties it named.
The facts
- Issued
- Jul 20, 1987, 1:50 PM CDT (18:50 UTC)
- Expired
- Jul 20, 1987, 2:30 PM CDT
- In force
- 40 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Dunn County, WI, Eau Claire County, WI, Pepin 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
Minneapolis, MN (KSTC), launched 12:00Z, 6.8 hours before the alert went out and 145 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
- 4599 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 604 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 134 m²/s²
- 0-3 km storm-relative helicity
- 192 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 15.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMSP 201850 SVRMSP WIC033-091-035-201930- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MINNEAPOLIS MN 150 PM CDT MON JUL 20 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 230 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF WEST CENTRAL WISCONSIN... DUNN...PEPIN AND WESTERN EAU CLAIRE
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, 11:00 AM CDT, 2 hours 50 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MN 1025 AM CDT MON JUL 20 1987 ...THE SEVERE THUNDERSTORM WARNING FOR TODD COUNTY HAS NOW EXPIRED ...SEVERE THUNDERSTORM WATCH FOR NORTHERN AND CENTRAL MINNESOTA TILL 1100 AM CDT.. THE SEVERE THUNDERSTORMS WHICH WERE LOACTED IN CENTRAL AND NORTHERN TODD COUNTY HAVE DECREASED IN INTENSITY. THUNDERSTORMS CONTINUE TO MOVE ACROSS CENTRAL MINNESOTA AND YOUR NATIONAL WEATHER SERVICE WILL CONTINUE TO WATCH THESE THUNDERSTORMS FOR FURTHER DEVELOPMENT. PLEASE STAY TUNED TO NOAA WEATHER RADIO...TELEVISION AND YOUR LOCAL RADIO STATION FOR FUTURE UPDATES OR WARNINGS. RUBIN
Special weather statement, Jul 20, 11:35 AM CDT, 2 hours 15 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 1135 AM CDT MON JUL 20 1987 ..LINE OF STRONG THUNDERSTORMS DEVELOPING ACROSS EAST CENTRAL MINNESOTA.. AT 1130AM CDT...RADAR SHOWED A LINE OF STRONG THUNDERSTORMS DEVELOPING FROM NORTHWEST ISANTI COUNTY NORTHWEST OF CAMBRIDGE TO THE HINCKLEY AREA. THE STORMS WERE MOVING SOUTHEAST AT 25 MILES AN HOUR. THESE THUNDERSTORMS HAVE THE POTENTIAL TO PRODUCE WINDS OVER 50 MPH AND HAIL. PERSONS IN ISANTI...KANNEBEC...PINE...CHISAGO COUNTIES AS WELL AS BURNETT AND POLK COUNTIES OF WEST CENTRAL WISCONSIN SHOULD BE ALERT TO THE POSSIBILTY OF SEVERE WEATHER UNTIL 1 PM FROM THIS LINE OF THUNDERSTORMS. PAULSON
Special weather statement, Jul 20, 12:03 PM CDT, 1 hour 47 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 1200 PM CDT MON JUL 20 1987 ...INTENSE THUNDERSTORMS CONTINUED OVER EAST CENTRAL AND NORTHEAST MINNESOTA INTO NORTHWEST WISCONSIN... AT 1155 AM CDT... STRONG THUNDERSTORMS WITH VERY HEAVY RAINS WERE LOCATED FROM ISANTI COUNTY IN EAST CENTRAL MINNESOTA NORTHEAST THROUGH CHISAGO AND PINE COUNTIES OF MINNESOTA INTO BURNETT AND DOUGLAS COUNTIES OF NORTHWEST WISCONSIN. THE STRONGEST STORMS WERE LOCATED FROM NEAR CAMBRIDGE THROUGH RUSH CITY TO EAST OF PINE CITY TO NEAR MARKVILLE. VERY HEAVY RAINS...STRONG GUSTY WINDS AND DANGEROUS LIGHTNING CAN BE EXPECTED WITH THE STORMS AS THEY MOVE SOUTHEEAST AT 25 MILES AN HOUR. PERSONS IN THE PATH OF THESE THUNDERSTORMS SHOULD BE PREPARED TO MOVE TO A PLACE OF SFTEY IF THREATENING WEATHER DEVELOPS. STANDFIELD
Special weather statement, Jul 20, 12:45 PM CDT, 1 hour 5 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 1245 PM CDT MON JUL 20 1987 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR EAST CENTRAL AND NORTHEAST MINNESOTA AND NORTHWEST WISCONSIN UNTIL 4 PM CDT... AT 1235 PM CDT...STRONG THUNDERSTORMS WITH VERY HEAVY RAINS CONTINUED OVER EXTREME EAST CENTRAL MINNESOTA FROM PINE CITY TO ST CROIX FALLS AND EXTENDED INTO NORTHWEST WISCONSIN TO NEAR SPOONER. VERY HEAVY RAINS..STRONG GUSTY WINDS AND DANGEROUS LIGHTNING CAN BE EXPECTED WITH THE STORMS AS THEY MOVE SOUTHEAST AT 40 MILES AN HOUR. THE STORMS SHOULD BE LOCATED ALONG A LINE FROM NEAR HAYWARD TO SHELL LAKE TO BLOOMER IN NORTHWEST WISCONSIN BY 130o PM CDT. THESE STORMS WERE PART OF AN AREA OF SHOWERS AND THUNDERSTORMS THAT EXTENDED FROM EAST OF ALEXANDRIA TO GRAND RAPIDS TO DULUTH TO NORTHEAST OF STILLWATER. STANDFIELD
Special weather statement, Jul 20, 1:02 PM CDT, 48 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 100 PM CDT MON JUL 20 1987 ...VERY STRONG THUNDERSTORM DEVELOPING OVER WEST CENTRAL WISCONSIN... AT 1255 PM CDT...A LINE OF STRONG THUNDERSTORMS EXTENDED WEST FROM BARRON IN BARRON COUNTY TO TO NEAR BALDWIN IN ST CROIX COUNTY... WHICH IS 35 TO 40 MILES NORTHWEST OF EAU CLAIR. THESE THUNDERSTORMS WERE MOVING EAST SOUTHEAST AT 35 MILES AN HOUR. SOME CITIES IN THE PATH OF THESE THUNDERSTORMS ARE...WHEELER AND MENOMINEE IN DUNN COUNTY..CHETAC IN BARRON COUNTY AND ELMWOOD IN PIERCE COUNTY. HAIL AND WINDS IN THE 50 MPH RANGE ARE POSSIBLE FROM THESE THUNDERSTORMS. IF THESE THUNDERSTORMS MAINTAIN THEIR PRESENT STRENGTH AND MOVEMENT THEY WILL BE APPROACHING THE EAU CLAIRE AREA AROUND 2PM. IF THREATENING WEATHER APPROACHES BE PREPARED TO MOVE TO A PLACE OF SAFETY. PAULSON
Local storm report, Jul 20, 1:23 PM CDT, 27 minutes before
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
115 PM CDT MON JUL 20 198
...ATTN SELS A MSP...
...NOTE ALL REPORTS ARE FOR WISCONSIN COUNTIES.
1015 AM CDT LARGE TREES DOWN BETWEEN RICE LAKE AND CAMERON IN BARRON
COUNTY. FROM BARRON COUNTY SHERIFFS OFFICE.
1027 AM LARGE TREE DAMGE NR CHRISTIE MOUNTAIN...ABOUT 10 TO 15 MILES
NORTHWEST OF LADYSMITH IN RUSK COUNTY. REPORT OF CONFIRMED
TORNADO. FROM RUSK COUNTY SHERIFFS OFFICE.
1105 AM LARGE TREES DOWN 5 MILES EAST OF AUBURN IN NORTHWEST
CHIPPEWA COUNTY. FROM CHIPPEWA COUNTY SHERIFFS OFFICE.
953 AM LARGE TREES DOWN AND DAMAGE TO A BARN AND SHED ABOUT 3 MILES
EAST OF RICE LAKE. FROM BARRON COUNTY SHERIFFS OFFICE.
1002 AM LARGE TREES DOWN IN BARRON IN BARRON COUNTY FROM BARRON
COUNTY SHERIFFS OFFICE.
1050 AM (APPROXIMATED TIME) LARGE TREES DOWN IN CHETEK IN BARRON
COUNTY FROM BARRON COUNTY SHERIFFS OFFICE.
BETWEEN 11 AM AND 1130 AM....4 INCH DIAMETER TREES AND LARGE BRANCHES
DOWN NEAR HOLCOMBE IN NORTHEAST CHIPPEWA COUNTY. FROM NORTHERN
STATES POWER COMPANY.
PAULSONThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 8:52 AM CDT | Severe Thunderstorm Warning | MPX | Polk | 43 min |
| Jul 20, 9:40 AM CDT | Severe Thunderstorm Warning | MPX | Barron | 35 min |
| Jul 20, 10:18 AM CDT | Severe Thunderstorm Warning | MPX | Barron, Chippewa, Rusk | 57 min |
| Jul 20, 11:04 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Rusk | 41 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; the sounding from the Mesonet's radiosonde archive.