Alert archive / Michigan / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 29, NWS Detroit, MI
NWS Detroit, MI issued this severe thunderstorm warning at Aug 28, 1990, 6:30 PM EDT for Wayne County, Michigan. It was in force for 60 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
- Aug 28, 1990, 6:30 PM EDT (22:30 UTC)
- Expired
- Aug 28, 1990, 7:30 PM EDT
- In force
- 60 min
- Issued by
- NWS Detroit, MI
- Area
- Whole counties
County Wayne 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 |
|---|---|---|---|
| Aug 28, 6:45 PM EDT | Hail 1 | Wayne, 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, 10.5 hours before the alert went out and 50 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
- 3624 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 602 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 194 m²/s²
- 0-3 km storm-relative helicity
- 185 m²/s²
- Significant tornado parameter
- 3.6
- Supercell composite
- 16.3
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, Aug 28, 3:48 PM EDT, 2 hours 42 minutes before
MIZ001-068-281800- SPECIAL WEATHER STATEMENT...CORRECTION TO WORDING... NATIONAL WEATHER SERVICE ANN ARBOR MI 345 PM EDT TUE AUG 28 1990 ...TORNADO WATCH CONTINUES IN EFFECT FOR A LARGE PART OF CENTRAL AND SOUTHERN LOWER MICHIGAN UNTIL 800 PM TONIGHT... THE TORNADO WATCH COVERS ALL OF LOWER MICHIGAN SOUTH OF A LINE THAT EXTENDS FROM JUST NORTH OF STANDISH...WEST TO MANISTEE. AS OF 330 PM AN AREA OF THUNDERSTORMS HAS DEVELOPED OVER SOUTHWEST LOWER MICHIGAN. THE STONGEST THUNDERSTORM WAS JUST SOUTH OF HILLSDALE. SCATTERED THUNDERSTORMS CONTINUED OVER SOUTHERN LAKE HURON...SAGINAW BAY AND THE NORTHERN TIP OF THE MICHIGAN THUMB. THUNDERSTORM ACTIVITY WILL CONTINUE TO INCREASE DURING THE NEXT HOUR... SO... PEOLPE IN OR NEAR THE WATCH AREA SHOULD REMAIN ON THE LOOK OUT FOR SEVERE WEATHER AND BE READY TO MOVE TO SAFETY QUICKLY. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TELEVISION STATION FOR LATER STATEMENTS OR WARNINGS. WDM
Special weather statement, Aug 28, 4:42 PM EDT, 1 hour 48 minutes before
MIZ001-068-281800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ANN ARBOR MI 442 PM EDT TUE AUG 28 1990 ...TORNADO WATCH CONTINUES IN EFFECT FOR A LARGE PART OF CENTRAL AND SOUTHERN LOWER MICHIGAN UNTIL 800 PM TONIGHT... AS OF 430 PM SCATTERED VERY HEAVY THUNDERSTORMS CONTINUED OVER BRANCH AND HILLSDALE COUNTIES OF SOUTHERN LOWER MICHIGAN. THE THUNDERSTORMS OVER SOUTHERN LAKE HURON HAVE DISIPATED OVER THE CENTRAL PART LAKE HURON. A NEW THUNDERSTORM HAS DEVELOPED NEAR BAD AXE AND ANOTHER JUST WEST OF ANN ARBOR. THE THUNDERSTORMS WERE MOVING EAST AT 35 MPH. THUNDERSTORM ACTIVITY WILL CONTINUE TO DEVELOPE DURING THE NEXT FEW HOURS...SO...PEOLPE IN OR NEAR THE WATCH AREA SHOULD REMAIN4 ON THE LOOKOUT FOR SEVERE WEATHER AND BE READY TO MOVE TO SAFETY QUICKLY. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TELEVISION STATIONS FOR LATER STATEMENTS OR WARNINGS. WDM
Special weather statement, Aug 28, 5:05 PM EDT, 1 hour 25 minutes before
MIZ026-031>034-036>039-042-282230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FLINT MI 505 PM EDT TUE AUG 28 1990 ...A TORNADO WATCH REMAINS IN EFFECT UNTIL 8 PM THIS EVENING... A TORNADO WATCH CONTINUES IN EFFECT FOR MOST OF EAST CENTRAL MICHIGAN UNTIL 8 PM. AT 5 PM...WEATHER RADAR SHOWED INTENSE THUNDERSTORM ACTIVITY OVER EXTREME SOUTHERN LOWER MICHIGAN...MOVING EAST AT 35 MPH. IN EAST CENTRAL MICHIGAN...A THUNDERSTORM WAS OVER NORTHERN SANILAC COUNTY...ABOUT 50 MILES NORTHEAST OF FLINT. THIS STORM MAY PRODUCE GUSTY WINDS AND DANGEROUS LIGHTNING AS IT MOVES EAST AT ABOUT 35 MILES AN HOUR. THUNDERSTORMS COULD RAPIDLY DEVELOP OVER OTHER PARTS OF EAST CENTRAL MICHIGAN THIS EVENITNG...SO THE TORNADO WATCH REMAINS IN EFFECT UNTIL 8 PM. YORK
Special weather statement, Aug 28, 5:09 PM EDT, 1 hour 21 minutes before
MIZ001-068-281800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ANN ARBOR MI 505 PM EDT TUE AUG 28 1990 ...TORNADO WATCH HAS BEEN CANCELLED FOR THE FOLLOWING CENTRAL LOWER MICHIGAN COUNTIES...LAKE...OSCEOLA...CLARE...GLADWIN...NEWAGO... MECOSTA...ISABELLA... THE TORNADO WATCH REMAINS IN EFFECT FOR THE MOST OF COUNTIES IN EAST CENTRAL AND SOUTHERN LOWER MICHIGAN UNTIL 800 PM. THE STRONG THUNDERSTORMS CONTINUE TO DEVELOPE OVER THE SOUTHERN PART OF LOWER MICHIGAN...MOST OF THE THESE THUNDERSTORMS WERE SOUTH OF A LINE THAT EXTENDS FROM BAD AXE TO GRAND RAPIDS. IF SEVERE WEATHER IS SIGHTED...MOVE TO A PLACE OF SAFTEY QUICKLY. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR[ TELEVISION STATIONS FOR LATER STATEMENTS OR WARNINGS. WDM
Special weather statement, Aug 28, 5:37 PM EDT, 53 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DETROIT MI 535 PM EDT TUE AUG 28 1990 AT 525 PM...ISOLATED THUNDERSTORMS...SOME WITH VERY HEAVY RAIN... WERE NOTED OVER PARTS OF SOUTHERN ONTARIO AND SOUTHEAST LOWER MICHIGAN. THE STRONGEST STORMS WERE LOCATED 15 MILES SOUTH OF LONDON ONTARIO WITH ANOTHER JUST SOUTHWEST OF ADRIAN MICHIGAN...IN LENEWEE COUNTY. HAIL...STRONG GUSTY WIND AND DANGEROUS LIGHTNING CAN BE EXPECTED AS THESE STORMS PASS OVERHEAD. THESE STORMS WERE PART OF A SCATTERED AREA OF THUNDERSTORMS AND RAIN SHOWERS WHICH CONTINUED OVER PARTS OF SOUTHEAST LOWER MICHIGAN AND EXTENDED OVER PORTIONS OF SOUTHERN LAKE HURON...SOUTHERN ONTARIO... NORTHEAST INDIANA AND NORTHWEST OHIO. ALL MOVEMENT WAS EAST SOUTHEAST AROUND 35 MILES AN HOUR.
Special weather statement, Aug 28, 6:19 PM EDT, 11 minutes before
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</html>The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 8:00 PM EDT | Severe Thunderstorm Warning | DTX | Otsego | 60 min |
| Aug 27, 8:10 PM EDT | Severe Thunderstorm Warning | DTX | Crawford | 65 min |
| Aug 27, 8:40 PM EDT | Severe Thunderstorm Warning | DTX | Roscommon | 60 min |
| Aug 27, 9:00 PM EDT | Severe Thunderstorm Warning | DTX | Roscommon | 45 min |
| Aug 27, 9:10 PM EDT | Severe Thunderstorm Warning | DTX | Crawford | 30 min |
| Aug 27, 9:17 PM EDT | Severe Thunderstorm Warning | DTX | Ogemaw | 60 min |
| Aug 27, 9:35 PM EDT | Severe Thunderstorm Warning | DTX | Ogemaw, Roscommon | 60 min |
| Aug 27, 9:47 PM EDT | Severe Thunderstorm Warning | DTX | Arenac | 73 min |
| Aug 27, 10:00 PM EDT | Severe Thunderstorm Warning | DTX | Clare, Gladwin | 35 min |
| Aug 27, 10:22 PM EDT | Severe Thunderstorm Warning | DTX | Huron | 53 min |
| Aug 27, 11:00 PM EDT | Severe Thunderstorm Warning | DTX | Clare, Gladwin | 60 min |
| Aug 27, 11:54 PM EDT | Severe Thunderstorm Warning | DTX | Bay, Midland | 66 min |
| Aug 28, 12:49 AM EDT | Severe Thunderstorm Warning | DTX | Macomb, Saint Clair | 41 min |
| Aug 28, 5:42 PM EDT | Severe Thunderstorm Warning | DTX | Lenawee | 63 min |
| Aug 28, 6:00 PM EDT | Tornado Warning | DTX | Monroe | 45 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.