Alert archive / Michigan / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 31, NWS Indianapolis, IN

March 27, 1991Cass County, Saint Joseph County, Michigan

NWS Indianapolis, IN issued this severe thunderstorm warning at Mar 27, 1991, 7:28 PM EST for Cass County, Saint Joseph County, Michigan. It was in force for 32 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
Mar 27, 1991, 7:28 PM EST (00:28 UTC)
Expired
Mar 27, 1991, 8:00 PM EST
In force
32 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

Counties Cass County, MI, Saint Joseph County, MI

What was reported inside it

TimeReportWhereRemark
Mar 27, 7:30 PM ESTThunderstorm Wind 0St. Joseph, MI
Mar 27, 7:35 PM ESTHail 0.75St. Joseph, MI
Mar 27, 7:50 PM ESTThunderstorm Wind 0St. Joseph, 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 00:00Z, 0.5 hours before the alert went out and 212 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.

Skew-T log-pSkew-T log-p diagram, Detroit, MI at 00:00Z on 1991-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1201 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 00:00Z on 1991-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 378 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1201 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
971 m above ground
0-6 km bulk shear
91 kt
0-1 km storm-relative helicity
378 m²/s²
0-3 km storm-relative helicity
434 m²/s²
Significant tornado parameter
3.4
Supercell composite
12.5

Open this sounding in Storm Lab

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, Mar 27, 4:30 PM EST, 2 hours 58 minutes before
INZ001>010-282300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
430 PM EST MAR 27 1991

A TORNADO WATCH IS IN EFFECT UNTIL 11 PM EST FOR THE NORTHERN
HALF OF INDIANA. THE WATCH AREA INCLUDES THAT PART OF THE STATE
NORTH OF A LINE FROM TERRE HAUTE TO MUNCIE.

SOME CITIES INCLUDED IN THE WATCH...SOUTH BEND...FORT WAYNE...KOKOMO
...COLUMBIA CITY...LOGANSPORT...LAFAYETTE AND CRAWFORDSVILLE.

AT 420 PM EST WEATHER SERVICE RADARS SHOWED THE STRONGEST THUNDERSTORMS
OVER ILLINOIS FROM CHICAGO SOUTH TO NEAR PEORIA. THESE STORMS WERE
MOVING NORTHEAST AT 55 MILES AN HOUR.

PEOPLE IN NORTHERN INDIANA SHOULD LISTEN FOR LATER STATEMENTS AND
POSSIBLE WARNINGS AND BE PREPARED TO MOVE TO THE LOWEST LEVEL OF YOUR
HOME OR APPARTMENT IF A SEVERE STORM APPROACHES.

SURFACE WINDS ARE GUSTING TO OVER 40 MILES AN HOUR IN ILLINOIS
AND INDIANA. THESE STRONG WINDS COMBINED WITH THE WINDS OF
THUNDERSTORMS COULD RESULT IN WINDS WELL OVER 60 MILES AN HOUR.

WJG
Special weather statement, Mar 27, 5:16 PM EST, 2 hours 12 minutes before
INZ001>010-282300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
515 PM EST MAR 27 1991

AT 510 PM EST RADAR SHOWED A SEVERE THUNDERSTORM NEAR KANKAKEE
ILLINOIS.

THIS STORM WAS MOVING NORTHEAST AT 45 TO 50 MILES AN HOUR AND WILL MOVE
INTO INDIANA BY 530 PM EST NEAR THE TOWNS OF ENOS..LAKE VILLAGE AND
SCHNEIDER IN NORTHERN NEWTON COUNTY.

PEOPLE IN NORTHERN INDIANA SHOULD LISTEN FOR LATER STATEMENTS AND
POSSIBLE WARNINGS AN%D BE PREPARED TO MOVE INTO THE LOWEST LEVEL
OF A STURDY BUILDING.

WJG
Special weather statement, Mar 27, 5:45 PM EST, 1 hour 43 minutes before
INZ001>010-282300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
544 PM EST MAR 27 1991

AT 540 PM EST RADAR SHOWED THUNDERSHOWERS DEVELOPING JUST EAST OF
OF BENTON AND NEWTON COUNTIES IN NORTHWEST INDIANA.

THESE SHOWERS WILL MOVE INTO INDIANA BY 6 PM EST BETWEEN THE
TOWNS OF DUNN AND MOROCCO.

THE THUNDERSHOWERS MAY BECOME THUNDERSTORMS AS THEY MOVE NORTHEAST
AT 40 TO 45 MILES AN HOUR.

PEOPLE IN NORTHERN INDIANA SHOULD LISTEN FOR LATER STATEMENTS AND
POSSIBLE WARNINGS AND BE PREPARED TO MOVE INTO THE LOWEST LEVEL
OF A STURDY BUILDING.

A TORNADO WATCH IS IN EFFECT UNTIL 11 PM EST FOR THE NORTHERN
HALF OF INDIANA. THE WATCH AREA INCLUDES THAT PART OF THE STATE
N[ORTH OF A LINE FROM TERRE HAUTE TO MUNCIE.

SOME CITIES INCLUDED IN THE WATCH...SOUTH BEND...FORT WAYNE...KOKOMO
...COLUMBIA CITY...LOGANSPORT...LAFAYETTE AND CRAWFORDSVILLE.

WJG
Special weather statement, Mar 27, 5:51 PM EST, 1 hour 37 minutes before
INZ001>010-282300-

SPECIAL WEATHER STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
544 PM EST MAR 27 1991

AT 540 PM EST RADAR SHOWED THUNDERSHOWERS DEVELOPING JUST WEST OF
OF BENTON AND NEWTON COUNTIES IN NORTHWEST INDIANA.

THESE SHOWERS WILL MOVE INTO INDIANA BY 6 PM EST BETWEEN THE
TOWNS OF DUNN AND MOROCCO.

THE THUNDERSHOWERS MAY BECOME THUNDERSTORMS AS THEY MOVE NORTHEAST
AT 40 TO 45 MILES AN HOUR.

PEOPLE IN NORTHERN INDIANA SHOULD LISTEN FOR LATER STATEMENTS AND
POSSIBLE WARNINGS AND BE PREPARED TO MOVE INTO THE LOWEST LEVEL
OF A STURDY BUILDING.

A TORNADO WATCH IS IN EFFECT UNTIL 11 PM EST FOR THE NORTHERN
HALF OF INDIANA. THE WATCH AREA INCLUDES THAT PAR^T OF THE STATE
NORTH OF A LINE FROM TERRE HAUTE TO MUNCIE.

SOME CITIES INCLUDED IN THE WATCH...SOUTH BEND...FORT WAYNE...KOKOMO
...COLUMBIA CITY...LOGANSPORT...LAFAYETTE AND CRAWFORDSVILLE.

WJG
CORRECTION CHANGE EAST TO WEST FIRST LINE.
Local storm report, Mar 27, 5:59 PM EST, 1 hour 29 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
558 PM EST WED MAR 27 1990

TIME          LOCATION

555 PM EST   INDIANA STATE POLICE RELAYED A REPORT OF LARGE HAIL
             11/2 TO 2 INCH DnIAMETER HAIL IN NORTHEAST GARY AND
             PORTAGE NEAR THE TOLL ROAD.
Special weather statement, Mar 27, 6:12 PM EST, 1 hour 16 minutes before
INZ001>010-280000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
610 PM EST MAR 27 1991

AT 605 PM EST RADAR SHOWED THUNDERSTORMS OVER WESTERN BENTON AND
NEWTON COUNTIES IN NORTHWEST INDIANA. THESE STORMS WERE 30 MILES
NORTHWEST OF LAFAYTTE NEAR THE TOWNS OF FREE AND ENOS.

THE STORMS WERE MOVING NORTHEAST AT 40 MILES AN HOUR AND CONTINUING
TO STRENGTHEN. THE TOWNS OF KENTS...ROSELAWN...FOWLER AND GOODLAND WERE
THE PATH OF THxESE STORMS. PEOPLE IN THE AREA AROUND THESE TOWNS
SHOULD BE PREPARED FOR STRONG WINDS AND SMALL HAIL.

WJG

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 27, 7:14 PM ESTSevere Thunderstorm WarningINDElkhart, Kosciusko31 min
Mar 27, 7:26 PM ESTSevere Thunderstorm WarningINDMiami34 min
Mar 27, 7:52 PM ESTSevere Thunderstorm WarningINDHamilton, Madison38 min
Mar 27, 8:07 PM ESTTornado WarningINDMadison38 min
Mar 27, 8:21 PM ESTSevere Thunderstorm WarningINDDelaware39 min
Mar 27, 8:30 PM ESTSevere Thunderstorm WarningINDMadison30 min
Mar 27, 9:10 PM ESTTornado WarningINDWayne35 min
Mar 27, 9:17 PM ESTSevere Thunderstorm WarningINDHancock, Henry28 min
Mar 27, 9:56 PM ESTSevere Thunderstorm WarningINDWayne34 min

Nearby

Severe Thunderstorm Warnings in Michigan, 1991Every severe thunderstorm warning in 1991

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.