Alert archive / Indiana / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 1, NWS Northern Indiana

March 10, 1990LaGrange County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Mar 10, 1990, 6:41 AM EST for LaGrange County, Indiana. It was in force for 34 min.

The area

The counties it named.

The facts

Issued
Mar 10, 1990, 6:41 AM EST (11:41 UTC)
Expired
Mar 10, 1990, 7:15 AM EST
In force
34 min
Issued by
NWS Northern Indiana
Area
Whole counties

County LaGrange County, IN

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, 11.7 hours before the alert went out and 203 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 1990-03-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1990-03-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
553 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
112 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KIND 101142
SVRFWA
INC087-101215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT WAYNE IN
ISSUED BY INDIANAPOLIS IN
641 AM EST SAT MAR 10 1990
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  715 AM EST
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN NORTHEAST INDIANA
          ...LAGRANGE
 
AT 625 AM EST...THE STATE POLICE REPORTED GOLF BALL SIZE HAIL 40
MILES NORTHWEST OF FORT WAYNE AT SHIPSHEWANNA.
 
THE SEVERE THUNDERSTORM THAT PRODUCED THE HAIL WAS MOVING EAST AT 30
MILES AN HOUR.
 
PEOPLE IN THE CITIES OF LAGRANGE...PLATO AND BRUSHY PRAIRIE SHOULD
REMAIN INDOORS AND AWAY FROM WINDOWS.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
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 ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
STEIGERWALDT

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 10, 5:37 AM EST, 1 hour 4 minutes before
MIZ001-002-101300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SOUTH BEND IN
536 AM EST SAT MAR 10 1990

...DENSE FOG ADVISORY FOR SOUTHWEST LOWER MICHIGAN THIS MORNING...

DENSE FOG CONTINUES TO BE A PROBLEM ACROSS SOUTHWEST MICHIGAN THIS
MORNING. SOME AREAS HAVE REPORTED VISIBILITIES LESS THAN 1/4 MILE.

THE FOG SHOULD BEGIN TO LIFT BY MID MORNING.

MOTORISTS DRIVING THROUGH SOUTHWEST MICHIGAN THIS MORNING SHOULD
ANTICIPATE REDUCED VISIBILITIES AT TIMES.
MS
Special weather statement, Mar 10, 5:49 AM EST, 52 minutes before
INZ003-005-006-OHZ01-101230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WAYNE IN
540 AM EST SAT MAR 10 1990

...DENSE FOG IN MOST OF NORTHEAST INDIANA...

AT 530 AM A CHECK WITH THE INDIANA STATE POLICE INDICATED MOST OF
NORTHEAST INDIANA HAS DENSE FOG.
THIS FOG WILL REMAIN IN MOST OF NORTHEAST INDAINA THROUGH AT LEAT 7AM.

PLEASE DRIVE WITH CARE AND USE YOUR LOW BEAM HEADLIGHTS.

RJB
Special weather statement, Mar 10, 6:07 AM EST, 34 minutes before
INZ001-002-MIZ001-002-101130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SOUTH BEND IN
528 AM EST SAT MAR 10 1990

...STRONG THUNDERSTORMS OVER PORTIONS OF NORTH CENTRAL INDIANA AND
SOUTHWEST MICHIGAN...

AT 520 AM EST...WEATHER RADAR INDICATED AN AREASPSSBN
Special weather statement, Mar 10, 6:11 AM EST, 30 minutes before
MIZ001-002-INZ001-002-101300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SOUTH BEND IN
611 AM EST SAT MAR 10 1990

...DENSE FOG ADVISORY FOR SOUTHWEST LOWER MICHIGAN THIS MORNING...

DENSE FOG CONTINUES TO BE A PROBLEM ACROSS SOUTHWEST MICHIGAN THIS
MORNING. SOME AREAS HAVE REPORTED VISIBILITIES LESS THAN 1/4 MILE.

DENSE FOG HAS ALSO FORMED OVER NORTH CENTRAL INDIANA. AT 6 00 AM EST...
THE VISIBILITY AT THE MICHIANA REGIONAL AIRPORT HAD BEEN REDUCED TO
1/8 MILE IN FOG.

MOTORISTS DRIVING THROUGH SOUTHWEST MICHIGAN AND NORTH CENTRAL INDIANA
THIS MORNING SHOULD EXERCISE EXTREME CAUTION.
MS
Special weather statement, Mar 10, 6:20 AM EST, 21 minutes before
INZ003-005-006-OHZ01-101145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WAYNE IN
605 AM EST SAT MAR 10 1990

...STRONG THUNDERSTORMS IN NORTHEAST INDIANA...

AT 6AM EST STRONG THUNDERSTORMS WERE LOCATED NEAR TOPEKA INDIANA
OF NORTHEAST INDIANA...OR 35 MILES NORTHWEST OF FORT WAYNE INDIANA.

THE STORMS WERE MOVING EAST AT 30 MPH AND WILL BE NEAR ROME CITY
OR 30 MILES NORTHWEST OF FORT WAYNE BY 630 AM.

THESE STORMS WILL HAVE HEAVY RAIN AND STRONG GUSTY WINDS.

RJB
Special weather statement, Mar 10, 6:25 AM EST, 16 minutes before
INZ001-002-MIZ001-002-101230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SOUTH BEND IN
626 AM EST SAT MAR 10 1990

...STRONG THUNDERSTORMS OVER PORTIONS OF NORTH CENTRAL INDIANA AND
SOUTHWEST MICHIGAN...

AT 620 AM EST...WEATHER RADAR INDICATED AN AREA OF SHOWERS AND
THUNDERSTORMS EXTENDING FROM ALBION INDIANA...30 MILES NORTH NORTHWEST
OF FORT WAYNE...TO KALAMAZOO MICHIGAN AND THEN WESTWARD TO BENTON HARBOR
MICHIGAN. FROM BENTON HARBOR...THE AREA OF SHOWERS AND THUNDERSTORMS
EXTENDED SOUTHWESTWARD ACROSS LAKE MICHIGAN INTO NORTHEASTERN ILLINOIS.

THE STRONGEST THUNDERSTORMS WERE LOCATED NEAR LAGRANGE AND MIDDLEBURY
INDIANA...40 AND 30 MILES EAST OF SOUTH BEND RESPECTIVELY...CENTREVILLE
MICHIGAN...18 MILES SOUTH OF KALAMAZOO AND OVER LAKE MICHIGAN WEST OF
BENTON HARBOR MICHIGAN.

THE STRONG THUNDERSTORMS ARE CAPABLE OF PRODUCING HEAVY RAIN...DANGEROUS
LIGHTNING AND SMALL HAIL.

THE SHOWERS AND THUNDERSTORMS WERE MOVING EAST AT 25 MPH.
MS

Nearby

Severe Thunderstorm Warnings in Indiana, 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; the sounding from the Mesonet's radiosonde archive.