Alert archive / Michigan / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 49, NWS Detroit, MI
NWS Detroit, MI issued this severe thunderstorm warning at Aug 10, 1992, 7:55 PM EDT for Saint Clair County, Michigan. It was in force for 45 min.
The area
The counties it named.
The facts
- Issued
- Aug 10, 1992, 7:55 PM EDT (23:55 UTC)
- Expired
- Aug 10, 1992, 8:40 PM EDT
- In force
- 45 min
- Issued by
- NWS Detroit, MI
- Area
- Whole counties
County Saint Clair County, MI
The nearest sounding before it
Detroit, MI (KFNT), launched 12:00Z, 11.9 hours before the alert went out and 67 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
- 3350 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 569 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 145 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDTW 102356 COR
SVRDTW
MIC147-110045-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DETROIT MI
755 PM EDT MON AUG 10 1992
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 845 PM EDT FOR PEOPLE IN THE FOLLOWING
COUNTY
IN THE SOUTHEAST PART OF LOWER MICHIGAN
ST. CLAIR
AT 750 PM...SKYWARN SPOTTERS DETECTED MARBLE TO QUARTER-SIZE HAIL
15 MILES WEST OF PORT HURON...WHICH IS 53 MILES NORTHEAST OF
DOWNTOWN DETROIT. THE SEVERE STORM PRODUCING THE HAIL WAS MOVING
TO THE SOUTHEAST AT AROUND 35 MPH...AND IT WILL STRIKE THE RATTLE
RUN AND SAINT CLAIR AREAS BY 810 PM. BOTH COMMUNITIES ARE ABOUT
42 MILES NORTHEAST OF DOWNTOWN DETROIT.
IF YOU ARE CAUGHT OUTSIDE...FIND SHELTER FROM THE WEATHER IN A
STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADWAYS QUICKLY...
AVOID DRIVING INTO AREAS WHERE WATER COVERS THE ROAD.
DJFWhat 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 10, 6:21 PM EDT, 1 hour 34 minutes before
MIZ026-031>034-036>038-042-102330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FLINT MI 615 PM EDT MON AUG 10 1992 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR EAST CENTRAL LOWER MICHIGAN UNTIL 10 PM... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM FOR MOST OF THE COUNTIES IN EAST CENTRAL LOWER MICHIGAN...INCLUDING BAY...SAGINAW... TUSCOLA...HURON...SANILAC...SHIAWASSEE...GENESEE...LAPEER. AT 610 PM... RADAR INDICATED A NEWLY DEVELOPED THUNDERSTORM NEAR MONTROSE IN NORTHWEST GENESEE COUNTY. MONTROSE IS 14 MILES NORTHWEST OF FLINT. THIS STORM WAS MOVING EAST SOUTHEAST AT 35 MPH. THIS STORM WILL REACH MOUNT MORRIS IN NORTH GENESEE COUNTY AROUND 630 PM. MOUNT MORRIS IS 6 MILES NORTH NORTHEAST OF FLINT. REMEMBER...IF YOU ARE OUTDOORS WHEN A THUNDERSTORM APPROACHES...MOVE INSIDE AWAY FROM DEADLY CLOUD TO GROUND LIGHTNING. AVOID USING TELEPHONES OR ELECTRICAL APPLIANCES. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS ^CONDITIONS ARE FAVORABLE FOR THESE STORMS TO BECOME SEVERE...WITH LARGE HAIL...HIGH WINDS IN EXCESS OF 57 MPH... AND DEADLY LIGHTNING. POLLMAN
Special weather statement, Aug 10, 6:55 PM EDT, 1 hour before
MIZ019-021-024-027>030-035-100055- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT MI 655 PM EDT MON AUG 10 1992 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR ALL OF SOUTHEAST LOWER MICHIGAN UNTIL 10 PM TONIGHT... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR ALL OF SOUTHEAST LOWER MICHIGAN UNTIL 10 PM INCLUDING THE COUNTIES OF WAYNE ...OAKLAND...MACOMB...LIVINGSTON...WASHTENAW...ST CLAIR...MONROE AND LENAWEE. AT 650 PM...A THUNDERSTORM WAS MOVING INTO NORTHWEST LIVINGSTON COUNTY NEAR FOWLERVILLE...ABOUT 57 MILES WEST-NORTHWEST OF DOWNTOWN DETROIT. THE STORM WAS MOVING TO THE EAST-SOUTHEAST AT 35 MILES AN HOUR. THIS STORM WILL HIT THE TOWN OF OAK GROVE BY 715 PM AND THE TOWN OF HOWELL BY 730. NO SEVERE WEATHER WAS OCCURING AT THIS TIME...HOWEVER...STRONG THUNDERSTORMS WILL DEVELOP THIS EVENING..WITH SOME BECOMING SEVERE. . REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS. SEVERE THUNDERSTORMS PRODUCE LARGE HAIL...STRONG AND DAMAGING WINDS AND DEADLY LIGHTNING. IF YOU ARE CAUGHT OUTSIDE IN A THUNDERSTORM...SEEK SHELTER INSIDE A STRONG BUILDING IMMEDIATELY. DO NOT USE ELECTRICAL APPLIANCES OR TELEPHONES UNTIL THE STORM HAS PASSED. KEEP TUNED TO NOAA WEATHER RADIO STATION KEC-63 FOR THE LATEST UPDATES ON THIS DEVELOPING WEATHER SITUATION. KMW
Special weather statement, Aug 10, 7:08 PM EDT, 47 minutes before
MIZ001>068-110200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ANN ARBOR MI 710 PM EDT MON AUG 10 1992 ...SEVERE THUNDERSTORM WATCH DISCONTINUED FROM NEAR BENTON HABOR... NORTHEAST ACROSS THE LANSING AREA TO NEAR SAGINAW... ...SEVERE THUNDERSTORM WATCH CONTINUED FOR THE REMAINDER OF SOUTHERN LOWER MICHIGAN UNTIL 10 PM EDT. THE NATIONAL WEATHER SERVICE DISCONTINUED THE SEVERE THUNDERSTORM WATCH FOR HURON...BAY...TUSCOLA...SAGINAW...GRATIOT...CLINTON... IONIA...BARRY...ALLEGAN...KALAMAZOO...VAN BUREN AND BERRIEN COUNTIES. THE WATCH REMAINS IN EFFECT OVER THE REST OF THE SOUTHERN QUARTER OF LOWER MICHIGAN UNTIL 10 PM EDT. AT 700 PM... RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CONTINUING TO MOVE SOUTH ACROSS THE SOUTH CENTRAL LOWER MICHIGAN. THE LINE EXTENDED FROM NEAR PORT SANILAC... SOUTHWEST TO NEAR FLINT TO JUST SOUTH OF LANSING AND WAS MOVING SOUTH AROUND 20 MPH. STRONG WINDS AND DIME SIZE HAIL HAVE BEEN RERPORTED WITH THESE STORMS. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PEOPLE IN THIS AREA SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. WDM
Special weather statement, Aug 10, 7:22 PM EDT, 33 minutes before
MIZ019-021-024-027>030-035-100120- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT MI 722 PM EDT MON AUG 10 1992 ...A STRONG THUNDERSTORM WAS MOVING INTO ST CLAIR COUNTY... ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR ALL OF SOUTHEAST LOWER MICHIGAN UNTIL 10 PM TONIGHT... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR ALL OF SOUTHEAST LOWER MICHIGAN UNTIL 10 PM INCLUDING THE COUNTIES OF WAYNE ...OAKLAND...MACOMB...LIVINGSTON...WASHTENAW...ST CLAIR...MONROE AND LENAWEE. AT 717 PM...A STRONG THUNDERSTORM WAS MOVING INTO NORTHWEST ST CLAIR COUNTY... ABOUT 10 MILES NORTH OF CAPAC...OR ABOUT 55 MILES NORTH OF DOWNTOWN DETROIT. THIS STORM WAS MOVING TO THE EAST-SOUTHEAST AT 35 MILES AN HOUR AND WILL HIT THE TOWN OF BROCKWAY BY 735 PM AND THE TOWN OF RUBY BY 750 PM. NO SEVERE WEATHER WAS OCCURING AT THIS TIME...HOWEVER...STRONG THUNDERSTORMS WILL DEVELOP THIS EVENING..WITH SOME POSSIBLY BECOMING SEVERE. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS. SEVERE THUNDERSTORMS PRODUCE LARGE HAIL...STRONG AND DAMAGING WINDS AND DEADLY LIGHTNING. IF YOU ARE CAUGHT OUTSIDE IN A THUNDERSTORM...SEEK SHELTER INSIDE A STRONG BUILDING IMMEDIATELY. DO NOT USE ELECTRICAL APPLIANCES OR TELEPHONES UNTIL THE STORM HAS PASSED. KEEP TUNED TO NOAA WEATHER RADIO STATION KEC-63 FOR THE LATEST UPDATES ON THIS DEVELOPING WEATHER SITUATION. KMW
Special weather statement, Aug 10, 7:27 PM EDT, 28 minutes before
MIZ026-031>034-036>038-042-100030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FLINT MI 725 PM EDT MON AUG 10 1992 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PARTS OF EAST CENTRAL LOWER MICHIGAN UNTIL 10 PM... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM FOR PARTS OF EAST CENTRAL LOWER MICHIGAN...INCLUDING SANILAC...SHIAWASSEE...GENESEE ...LAPEER COUNTIES. AT 715 PM...RADAR INDICATED THUNDERSTORMS NEAR LUM IN EAST LAPEER COUNTY. LUM IS 21 MILES EAST OF FLINT. THESE STORMS WERE MOVING EAST SOUTHEAST AT 35 MPH. SEVERE THUNDERSTORMS WERE OCCURING OVER SANILAC COUNTY NEAR CROSWELL...52 MILES NORTHEST OF FLINT. ALL STORMS ARE MOVING EAST SOUTHEAST AND WILL BE OUT OF EAST CENTRAL LOWER MICHIGAN BY 900 PM. REMEMBER...IF YOU ARE OUTDOORS WHEN A THUNDERSTORM APPROACHES...MOVE INSIDE AWAY FROM DEADLY CLOUD TO GROUND LIGHTNING. AVOID USING TELEPHONES OR ELECTRICAL APPLIANCES. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR THESE STORMS TO BECOME SEVERE...WITH LARGE HAIL...HIGH WINDS IN EXCESS OF 57 MPH... AND DEADLY LIGHTNING. POLLMAN/YORK
Special weather statement, Aug 10, 7:50 PM EDT, 5 minutes before
MIZ001>068-110200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ANN ARBOR MI 745 PM EDT MON AUG 10 1992 ...SEVERE THUNDERSTORM WATCH DISCONTINUED FOR PARTS OF SOUTH CENTRAL AND THE REMAINDER OF SOUTHWEST LOWER MICHIGAN... ...SEVERE THUNDERSTORM WATCH CONTINUED FOR SOUTHEAST LOWER MICHIGAN UNTIL 10 PM EDT. THE NATIONAL WEATHER SERVICE HAS DISCONTINUED THE SEVERE THUNDERSTORM WATCH FOR SANILAC... LAPEER...GENESEE...SHIAWASSEE...INGHAM...EATON... CALHOUN...BRANCH...ST JOSEPH AND CASS COUNTIES. THE WATCH REMAINS IN EFFECT FOR SOUTHEAST LOWER MICHIGAN UNTIL 10 PM EDT. AT 745 PM... RADAR INDICATED A LINE OF STRONG THUNDERSTORMS FROM JUST NORTH OF PORT HURON... TO 15 MILES SOUTH OF FLINT TO 10 MILES NORTH OF JACKSON. THE LINE CONTINUES TO MOVE SOUTH AROUND 20 MPH. THE LINE OF THUNDERSTORMS SHOULD CROSS THE CITIES OF PONTIAC AND JACSKON BY 830 PM. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PEOPLE IN THIS AREA SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. WDM
The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 2:44 PM EDT | Severe Thunderstorm Warning | DTX | Ogemaw | 46 min |
| Aug 10, 4:17 PM EDT | Severe Thunderstorm Warning | DTX | Huron | 43 min |
| Aug 10, 5:02 PM EDT | Severe Thunderstorm Warning | DTX | Huron | 28 min |
| Aug 10, 5:35 PM EDT | Severe Thunderstorm Warning | DTX | Huron | 55 min |
| Aug 10, 6:24 PM EDT | Severe Thunderstorm Warning | DTX | Tuscola | 46 min |
| Aug 10, 6:24 PM EDT | Severe Thunderstorm Warning | DTX | Sanilac | 66 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 1992Every severe thunderstorm warning in 1992
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.