Alert archive / Michigan / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 52, NWS Detroit, MI
NWS Detroit, MI issued this severe thunderstorm warning at Sep 14, 1990, 2:14 PM EDT for Macomb County, Saint Clair County, Michigan. It was in force for 61 min. 3 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
- Sep 14, 1990, 2:14 PM EDT (18:14 UTC)
- Expired
- Sep 14, 1990, 3:15 PM EDT
- In force
- 61 min
- Issued by
- NWS Detroit, MI
- Area
- Whole counties
Counties Macomb County, MI, Saint Clair County, MI
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 |
|---|---|---|---|
| Sep 14, 2:30 PM EDT | Thunderstorm Wind 62 | Macomb, MI | |
| Sep 14, 3:00 PM EDT | Thunderstorm Wind 62 | St. Clair, MI | |
| Sep 14, 3:00 PM EDT | Thunderstorm Wind 62 | St. Clair, MI |
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
Detroit, MI (KFNT), launched 12:00Z, 6.2 hours before the alert went out and 53 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
- 134 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 825 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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, Sep 14, 11:20 AM EDT, 2 hours 54 minutes before
MIZ001>068-141730- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ANN ARBOR MI 1115 AM EDT FRI SEP 14 1990 ...TORNADO WATCH 745 IN EFFECT TILL 500 PM... ...SEVERE THUNDERSTORM WATCH 744 CANCELED... A TORNADO WATCH IS IN EFFECT FOR MUCH OF SOUTHERN LOWER MICHIGAN UNTIL 500 PM EDT THIS AFTERNOON. THE WATCH COVERS LOWER MICHIGAN ROUGHLY SOUTH OF A LINE FROM GRAND HAVEN TO A POINT ON SAWINAW BAY 25 MILES NORTH OF BAY CITY. LARGER CITIES UNDER THIS WATCH INCLUDE GRAND RAPIDS...LANSING... FLINT...SAGINAW...BENTON HARBOR...KALAMAZOO...JACKSON...ANN ARBOR AND DETROIT. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS AND TORNADOES IN AND CLOSE TO THE WATCH AREA. IF YOU LIVE IN THE WATCH AREA...PLAN NOW A COURSE OF ACTION TO TAKE SHOULD SEVERE WEATHER THREATEN YOUR LOCATION. THIS TORNADO WATCH REPLACES THE OLD SEVERE THUNDERSTORM WATCH THAT HAD BEEN IN EFFECT ACROSS LOWER MIC/HIGAN. THE TORNADO WATCH CONTINUES TILL 5 PM. STAY TUNED TO THIS STATION FOR THE LATEST WEATHER INFORMATION. EDF
Special weather statement, Sep 14, 11:37 AM EDT, 2 hours 37 minutes before
MIZ026-031>034-036>039-042-141635-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLINT MI
1135 AM EDT FRI SEP 14 1990
...A TORNADO WATCH IS IN EFFECT FOR MOST OF EAST CENTRAL MICHIGAN UNTIL
5PM EDT...
AS OF 11AM THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH FOR
ALL OF EAST CENTRAL MICHIGAN UNTIL 5PM EDT WITH THE EXCEPTION OF ARENAC
COUNTY. THUNDERSTORMS WITH DAMAGING WINDS..HEAVY RAINFALL..LARGE HAIL..
AND DANGEROUS LIGHTNING ARE POSSIBLE. THESE STORMS COULD ALSO PRODUCE
A TORNADO WITH LITTLE OR NO ADVANCE WARNING.
AT 1135AM WEATHER RADAR INDICATED AN AREA OF THUNDERSTORMS STRETCHING
FROM WESTERN ARENAC COUNTY THROUGH MIDLAND COUNTY SOUTHWEST THROUGH THE
GRAND RAPIDS AREA. THE STRONGEST STORM WAS LOCATED OVER NORTHERN
MIDLAND COUNTY NEAR EDENVILLE..40 MILES NORTHWEST OF SAGINAW. THESE
THUNDERSTORMS ARE MOVING EAST AT AROUND 35 MILES PER HOUR.
PERSONS IN EAST CENTRAL MICHIGAN ASM WELL AS BOATERS ON SAGINAW BAY
SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER. STAY TUNED TO
NATIONAL WEATHER SERVICE RADIO AND LOCAL TELEVISION AND RADIO STATIONS
FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS.
DJFSpecial weather statement, Sep 14, 12:34 PM EDT, 1 hour 40 minutes before
MIZ026-031>034-036>039-042-141730-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLINT MI
1235 PM EDT FRI SEP 14 1990
...A TORNADO WATCH IS IN EFFECT FOR MOST OF EAST CENTRAL MICHIGAN UNTIL
5PM EDT...
AT 1230PM NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF STRONG
THUNDERSTORMS EXTENDING SOUTHWESTWARD FROM THE SOUTHWESTERN PORTION OF
SAGINAW BAY THROUGH THE LANSING AREA IN SOUTH CENTRAL MICHIGAN. THE
STRONGEST STORMS IN EAST CENTRAL MICHIGAN ARE LOCATED IN NORTH CENTRAL
SAGINAW COUNTY NEAR THE CITY OF SAGINAW. MOVEMENT OF THE STORMS IS
EAST SOUTHEAST AT AROUND 30 MILES PER HOUR.
THESE THUNDERSTORMS CONTAIN HEAVY RAIN..DAMAGING WINDS..AND DANGEROUS
LIGHTNING. THEY MAY ALSO PRODUCE LARGE HAIL AND TORNADOES WITH LITTLE
OR NO ADVANCE WARNING. PERSONS IN EAST CENTRAL MICHIGAN SHOULD BE ON
THE LOOKOUT FOR THE DEVELOPMENT OF THREATENING WEATHER AND SEEK SHELTER
AS IT APPROACHES. DRIVERS SHOULD ALSO EXERCISE CAUTION WHEN DRIVING IN
HEAVY RAINFALL DUE TO PONDING ON ROADS.
STAY TUNED TO NATIONAL WEATHER SERVICE RADIO AND LOCAL TELEVISION AND
RADIO STATIONS FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS.
DJFSpecial weather statement, Sep 14, 1:35 PM EDT, 39 minutes before
MIZ001>068-141930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ANN ARBOR MI 135 PM EDT FRI SEP 14 1990 ...TORNADO WATCH 745 CONTINUES IN EFFECT TILL 500 PM EDT... A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF SOUTHERN LOWER MICHIGAN UNTIL 500 PM EDT THIS AFTERNOON. THE WATCH COVERS LOWER MICHIGAN ROUGHLY SOUTH OF A LINE FROM GRAND HAVEN TO A POINT ON SAWINAW BAY 25 MILES NORTH OF BAY CITY. AT 110 PM...A LINE OF THUNDERSTORMS...SOME POSSIBLY SEVERE...EXTENDED FROM SAGINAW BAY...THROUGH FLINT AND JACKSON...AND THEN SOUTHWARD INTO NORTHWEST INDIANA. MOVEMENT WAS SOUTHEAST AT 35 MILES AN HOUR. THERE HAVE BEEN SEVERAL REPORTS OF DAMAGE ACROSS PARTS OF SOUTHWEST MICHIGAN AS THESE STORMS MOVED THROUGH THE AREA EARLIER TODAY. THESE THUNDERSTORMS WILL CONTINUE TO PRODUCE DAMAGING WINDS...HAIL...AND POSSIBLE TORNADOES AS THEY MOVE ACROSS SOUTHWEST MICHIGAN THIS AFTERNOON. THERE HAS ALSO BEEN SOME NEW DEVELOPMENT OF LIGHTER SHOWERS OUT AHEAD OF THIS MAJOR LINE OF STORMS ACROSS SOUTHEAST MICHIGAN. THESE SHOWERS WERE SCATTERED THROUGHOUT THE DETROIT AREA EXTENDING BACK TO AROUND ANN ARBOR AND SOUTH TO MONROE. BE PREPARED TO MOVE TO A PLACE OF SATETY QUICKLY IF SEVERE OWEATHER APPROACHES YOUR LACATION. STAY TUNED TO THIS STATION FOR THE LATEST WEATHER INFORMATION. EDF
Special weather statement, Sep 14, 1:39 PM EDT, 35 minutes before
MIZ001>068-141930- SPECIAL WEATHER STATEMENT ...CORRECTED 3RD PARGH LAST SENTENCE NATIONAL WEATHER SERVICE ANN ARBOR MI SOUTHWEST SHOULD BE 135 PM EDT FRI SEP 14 1990 SOUTHEAST... ...TORNADO WATCH 745 CONTINUES IN EFFECT TILL 500 PM EDT... A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF SOUTHERN LOWER MICHIGAN UNTIL 500 PM EDT THIS AFTERNOON. THE WATCH COVERS LOWER MICHIGAN ROUGHLY SOUTH OF A LINE FROM GRAND HAVEN TO A POINT ON SAWINAW BAY 25 MILES NORTH OF BAY CITY. AT 110 PM...A LINE OF THUNDERSTORMS...SOME POSSIBLY SEVERE...EXTENDED FROM SAGINAW BAY...THROUGH FLINT AND JACKSON...AND THEN SOUTHWARD INTO NORTHWEST INDIANA. MOVEMENT WAS SOUTHEAST AT 35 MILES AN HOUR. THERE HAVE BEEN SEVERAL REPORTS OF DAMAGE ACROSS PARTS OF SOUTHWEST MICHIGAN AS THESE STORMS MOVED THROUGH THE AREA EARLIER TODAY. THESE THUNDERSTORMS WILL CONTINUE TO PRODUCE DAMAGING WINDS...HAIL...AND POSSIBLE TORNADOES AS THEY MOVE ACROSS SOUTHEAST MICHIGAN THIS AFTERNOON. THERE HAS ALSO BEEN SOME NEW DEVELOPMENT OF LIGHTER SHOWERS OUT AHEAD OF THIS MAJOR LINE OF STORMS ACROSS SOUTHEAST MICHIGAN. THESE SHOWERS WERE SCATTERED THROUGHOUT THE DETROIT AREA EXTENDING BACKT TO AROUND ANN ARBOR AND SOUTH TO MONROE. BE PREPARED TO MOVE TO A PLACE OF SAFETY QUICKLY IF SEVERE WEATHER APPROACHES YOUR LACATION. STAY TUNED TO THIS STATION FOR THE LATEST WEATHER INFORMATION. EDF
Special weather statement, Sep 14, 2:01 PM EDT, 13 minutes before
MIZ001>068-142000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ANN ARBOR MI 200 PM EDT FRI SEP 14 1990 ...TORNADO WATCH 745 CONTINUES IN EFFECT TILL 500 PM EDT FOR SOUTHEAST LOWER MICHIGAN AND THE THUMB... ...TORNADO WATCH CANCELLED FOR SOUTHWEST MICHIGAN... TORNADO WATCH 745 IS NO LONGER IN EFFECT FOR THE FOLLOWING COUNTIES... ..LOWER PENINSULA.. MIDLAND BAY MONTCALM GRATIOT SAGINAW OTTAWA KENT IONIA CLINTON SHIAWASEE ALLEGAN BARRY EATON INGHAM VAN BUREN KALAMAZOO CALHOUN BERRIEN CASS ST JOSEPH BRANCH THE STRONGEST THUNDERSTORMS HAVE MOVED EAST OF THESE AREAS. A TORNADO WATCH REMAINS IN EFFECT FOR SOUTHEAST LOWER MICHIGAN AND THE THUMB TILL 5 PM. CITIES THAT REMAIN UNDER THE WATCH INCLUDE FLINT...JACKSON...ANN AROBR...AND DETROIT. IF YOU LIVE IN SOUTHEAST MICHIGAN OR THE THUMB...PREPARE FOR THUNDERSTORMS CAPABLE OF DAMAGING WINDS IN EXCESS OF 60 MPH... HAIL...AND HEAVY DOWNPOURS. A FEW TORNADOES ARE ALSO POSSIBLE. STAY TUNED TO THIS STATION FOR THE LATEST WEATHER INFORMATION. EDF
The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 14, 12:56 PM EDT | Severe Thunderstorm Warning | DTX | Genesee, Shiawassee | 64 min |
| Sep 14, 1:09 PM EDT | Severe Thunderstorm Warning | DTX | Tuscola | 66 min |
| Sep 14, 1:34 PM EDT | Severe Thunderstorm Warning | DTX | Livingston, Washtenaw | 41 min |
| Sep 14, 1:34 PM EDT | Severe Thunderstorm Warning | DTX | Lenawee | 41 min |
| Sep 14, 1:54 PM EDT | Severe Thunderstorm Warning | DTX | Sanilac | 51 min |
| Sep 14, 2:01 PM EDT | Tornado Warning | DTX | Oakland | 29 min |
| Sep 14, 2:14 PM EDT | Severe Thunderstorm Warning | DTX | Monroe, Wayne | 61 min |
| Sep 14, 2:26 PM EDT | Tornado Warning | DTX | Macomb | 49 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 1990Every severe thunderstorm warning in 1990
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.