Alert archive / Michigan / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 28, NWS Detroit, MI
NWS Detroit, MI issued this severe thunderstorm warning at Jun 29, 1987, 8:47 PM EDT for Monroe County, Michigan. It was in force for 28 min.
The area
The counties it named.
The facts
- Issued
- Jun 29, 1987, 8:47 PM EDT (00:47 UTC)
- Expired
- Jun 29, 1987, 9:15 PM EDT
- In force
- 28 min
- Issued by
- NWS Detroit, MI
- Area
- Whole counties
County Monroe County, MI
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
Detroit, MI (KFNT), launched 00:00Z, 0.8 hours before the alert went out and 89 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
- 351 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 1046 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.1
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, Jun 29, 3:00 PM EDT, 5 hours 47 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FLINT MI 245 PM EDT MON JUN 29 1987 ....THUNDERSTORMS MOVING ACROSS EAST-CENTRAL LOWER MICHIGAN.... RADAR SHOWS SHOWERS AND THUNDERSTORMS MOVING ACROSS GENESEE, LAPEER AND SANDUSKY COUNTIES IN EAST CENTRAL LOWER MICHIGAN AT 245 PM EDT MOVING TO THE EAST-NORTHEAST AT 35 MPH. LOCALLY MORE INTENSE THUNDERSTORMS ARE INDICATED OVER LIVINGSTON AND OAKLAND COUNTIES, ALSO MOVING TO THE EAST-NORTHEAST AT 35 MPH. PERSONS IN THESE COUNTIES ARE URGED TO KEEP A CLOSE EYE ON THE WEATHER AS THESE STORMS MOVE ACROSS EAST-CENTRAL LOWER MICHIGAN AND BE PREPARED TO SEEK SHELTER SHOULD THREATENING WEATHER DEVELOP. FURTHERMORE... ALL PERSONS IN EAST-CENTRAL LOWER MICHIGAN ARE URGED TO STAYED ABREAST OF RAPIDLY CHANGING WEATHER CONDITIONS OVER THE NEXT TWENTY-FOUR HOURS AS THE THREAT OF SEVERE WEATHER WITH LOCALLY HEAVY PRECIPITATION PERSISTS THROUGH TONIGHT. ...FRUEHAUF...
Special weather statement, Jun 29, 4:15 PM EDT, 4 hours 32 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLINT MI
410 PM EDT MON JUN 29 1987
....SEVERE THUNDERSTORM WATCH IN EFFECT FOR SHIAWASSEE.. GENESEE..
AND LAPEER COUNTIES UNTIL 10 PM EDT....
AT 4 PM EDT WEATHER RADAR SHOWED AN AREA OF INTENSE THUNDERSTORMS...
A FEW PRODUCING VERY HEAVY RAIN AND SMALL HAIL... EXTENDING FROM PORT
HURON SOUTHWESTWARD TO THE NORTHERN SUBURBS OF DETROIT, MOVING TO THE
EAST AT 35 MPH.
ALSO AT 4 PM RADAR INDICATED A NEWLY-DEVELOPED AREA OF SHOWERS AND
THUNDERSTORMS IN SOUTHWESTERN LOWER MICHIGAN NEAR GRAND RAPIDS AND
EXTENDING SOUTHWESTWARD FOR 40 TO 50 MILES. MOVEMENT HAS NOT YET BEEN
DETERMINED ON THESE STORMS.
STAY TUNED TO NOAA WEHATHER RADIO OR LOCAL RADIO OR TV STATIONS FOR
FURTHER UPDATES AND BE PREPARED TO TAKE SHELTER QUICKLY SHOULD A
WARNING BE ISSUED FOR YOUR AREA OR THREATENING WEATHER DEVELOP.
...FRUEHAUF...Special weather statement, Jun 29, 5:36 PM EDT, 3 hours 11 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLINT MI
525 PM EDT MON JUN 29 1987
....SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR SHIAWASSEE..
GENESEE AND LAPEER COUNTIES UNTIL 10 PM EDT....
AT 525 PM EDT WEATHER RADAR SHOWED AN AREA OF VERY STRONG
THUNDERSTORMS OVER CENTRAL LOWER MICHIGAN MOVING EASTWARD AT 35 TO
40 MPH WITH THE STRONGEST CELLS LOCATED 15 MILES SOUTH OF LANSING.
VERY STRONG WINDS, LARGE HAIL, AND DEADLY LIGHTNING ARE POSSIBLE WITH
THESE STORMS AS THEY MOVE INTO THE EAST CENTRAL LOWER MICHIGAN AREA.
STAY TUNED TO NOAA WEATHER RADIO OR LOCAL RADIO OR TV STATIONS FOR
FURTHER UPDATES AND BE PREPARED TO TAKE SHELTER QUICKLY SHOULD A
WARNING BE ISSUED FOR YOUR AREA OR THREATENING WEATHER DEVELOP.
...FRUEHAUF...Special weather statement, Jun 29, 6:17 PM EDT, 2 hours 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLINT MI
610 PM EDT MON JUN 29 1987
....SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR SHIAWASSEE..
GENESEE AND LAPEER COUNTIES UNTIL 10 PM EDT....
AT 605 PM EDT WEATHER RADAR SHOWED AN AREA OF SHOWERS AND
THUNDERSTORMS COVERING THE SOUTHERN HALF OF SAGINAW COUNTY, MOST OF
GENESEE COUNTY, THE EASTERN PORTIONS OF SHIAWASSEE COUNTY AND EXTENDING
SOUTHWESTWARD ACROSS INGHAM AND LIVINGSTON COUNTY INTO JACKSON COUNTY.
MOST OF THESE STORMS ARE MOVING EASTWARD AT 30 TO 40 MPH.
LOCALLY HEAVY THUNDERSTORMS WERE INDICATED OVER SOUTH-CENTRAL SAGINAW
COUNTY AND NORTHEASTERN GENESEE COUNTY.
TO THE SOUTHWEST, LOCALLY SEVERE THUNDERSTORMS ARE INDICATED ON RADAR
OVER SOUTHERN INGHAM AND NORTHERN JACKSON COUNTIES AND SEVERE
THUNDERSTORM WARNINGS HAVE BEEN ISSUED FOR THESE AREAS EFFECTIVE
UNTIL 630 PM EDT.
PERSONS IN THE EAST CENTRAL LOWER MICHIGAN AREA SHOULD STAY TUNED TO
NOAA WEATHER RADIO OR LOCAL RADIO OR TV STATIONS FOR FURTHER
DEVELOPMENTS AND BE PREPARED TO TAKE SHELTER QUICKLY SHOULD A
WARNING BE ISSUED FOR YOUR AREA OR THREATENING WEATHER DEVELOPMENT.
...FRUEHAUF...Special weather statement, Jun 29, 7:34 PM EDT, 1 hour 13 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLINT MI
715 PM EDT MON JUN 29 1987
....SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR SHIAWASSEE..
GENESEE AND LAPEER COUNTIES UNTIL 10 PM EDT....
AT 715 PM EDT WEATHER RADAR SHOWED AN AREA OF SHOWERS AND
THUNDERSTORMS APPROXIMATELY 30 MILES WIDE EXTENDING FROM SOUTHERN
LAKE HURON SOUTHWESTWARD ACROSS THE NORTHERN AND WESTERN SUBURBS OF
DETROIT INTO NORTHWESTERN OHIO. THESE STORMS ARE MOVING TO THE EAST
AT 40 MPH.
THE MOST INTENSE STORMS WERE LOCATED OVER EASTERN WASHTENAW AND
WESTERN WAYNE COUNTIES, AND A SEVERE THUNDERSTORM WARNING IS IN EFFECT
FOR OAKLAND AND WAYNE COUNTIES UNTIL 745 PM EDT. A TORNADO WARNING
IS IN EFFECT UNTIL 730 PM EDT FOR EASTERN WASHTENAW AND WESTERN
WAYNE COUNTIES BASED UPON A HOOK ECHO OBSERVED ON DETROIT'S WEATHER
RADAR.
ELSEWHERE IN LOWER MICHIGAN, SEVERAL CLUSTERS OF THUNDERSTORMS, SOME
WITH LOCALLY HEAVY PRECIPITATION HAVE DEVELOPED ALONG AND AHEAD OF
THE COLDFRONT OVER NORTHERN LOWER MICHIGAN, EXTENDING FROM NEAR TAWAS
SOUTHWESTWARD TO SOUTHWESTERN LOWER MICHIGAN, WITH A LOCALLY HEAVY
THUNDERSTORM OVER NORTHERN BAY COUNTY. THIS AREA OF STORMS IS DROPPING
SLOWLY SOUTHEASTWARD WITH THE FRONT AS THE INDIVIDUAL THUNDERSTORM
CELLS MOVE EASTWARD.
PERSONS IN THE EAST CENTRAL LOWER MICHIGAN AREA SHOULD STAY TUNED TO
NOAA WEATHER RADIO OR LOCAL RADIO OR TV STATIONS FOR FURTHER
DEVELOPMENTS AND BE PREPARED TO TAKE SHELTER QUICKLY SHOULD A
WARNING BE ISSUED FOR YOUR AREA OR THREATENING WEATHER DEVELOPMENT.
...FRUEHAUF...Nearby
Severe Thunderstorm Warnings in Michigan, 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.