Alert archive / Indiana / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 2, NWS Northern Indiana

May 12, 1993Grant County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at May 12, 1993, 4:40 PM EST for Grant County, Indiana. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
May 12, 1993, 4:40 PM EST (21:40 UTC)
Expired
May 12, 1993, 5:45 PM EST
In force
65 min
Issued by
NWS Northern Indiana
Area
Whole counties

County Grant County, IN

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 12:00Z, 9.7 hours before the alert went out and 141 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, Dayton/James M C, OH at 12:00Z on 1993-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 340 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, Dayton/James M C, OH at 12:00Z on 1993-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 square meters per square second.193958Sfc1 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
340 J/kg
Mixed-layer CIN
-98 J/kg
Mixed-layer LCL
1169 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
25 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 
WUUS1 KFWA 122140 RRA
SVRFWA
INC053-122245-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE FORT WAYNE IN
440 PM EST WED MAY 12 1993

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 545 PM EST FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE NORTHEAST PART OF INDIANA
      GRANT

AT 438 PM EST RADAR INDICATED A SEVERE THUNDERSTORM 20 MILES WEST
OF MARION IN NORTHEAST INDIANA.

THIS THUNDERSTORM WAS MOVING SOUTHEAST AT 15 MPH.

PEOPLE IN THE AREA AROUND THE  TOWN OF GAS CITY INDIANA
SHOULD SEEK SHELTER IN A STRONG BUILDING.  DO NOT STAND NEAR WINDOWS.
DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES UNTIL THE STORM HAS
PASSED.  MOTORISTS SHOULD AVOID LOW WATER CROSSINGS.

THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH...PREPARE FOR
DAMAGING WINDS...LARGE HAIL...AND DEADLY LIGHTNING.  PEOPLE OUTSIDE
SHOULD MOVE TO SHELTER...PREFERABLY INSIDE A STRONG BUILDING.  ONCE
INSIDE...STAY AWAY FROM WINDOWS.

 MARSHALL

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, May 12, 2:42 PM EST, 1 hour 58 minutes before
INZ003-005-006-OHZ001-122100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WAYNE IN
240 PM EST TUE MAY 11 1993

...STRONG THUNDERSTORMS WERE SOUTHWEST OF FORT WAYNE...

AT 238 PM EST/ 338 EDT...STRONG STORMS WERE 25 MILES SOUTHWEST OF FORT
WAYNE...AROUND WABASH AND HUNTINGTON INDIANA.  THESE STORMS WERE MOVING
TO THE SOUTHEAST AT 5 MPH.  THEY HAD DANGEROUS LIGHTNING...SMALL HAIL
HEAVY RAIN AND GUSTY WIND.

BY 330 PM EST/430 EDT...THE STORMS WILL BE 30 MILES SOUTHWEST OF
FORT WAYNE OR 10 MILES NORTH OF MARION.  THE STORMS SLOW MOVEMENT
AND HEAVY RAIN MAY CAUSE FLOODING OF LOW SPOTS IN ROADS.

THERE IS A SEVERE THUNDERSTORM WATCH IS EFFECT FOR SOUTH PARTS OF
NORTHEAST INDIANA UNPTIL 8 PM EST.  GO INSIDE DURING THESE STORMS.

WITSAMAN
Special weather statement, May 12, 3:47 PM EST, 53 minutes before
INZ003-005-006-OHZ001-122230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WAYNE IN
347 PM EST WED MAY 12 1993

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE PLACES SOUTH OF
FORT WAYNE IN NORTHEAST INDIANA UNTIL 8 PM EST...

AT 345 PM EST/ 445 EDT...STRONG THUNDERSTORMS WERE SOUTHWEST OF FORT
WAYNE. THE STORMS WERE EXTENDED FROM  15 TO 40 MILES SOUTHWEST OF THE
CITY. THAT'S FROM AROUND HUNTINGTON TO WABASH INDIANA.  THE STORMS WERE
MOVING SOUTHEAST AT 10 MILES PER HOUR.  THEY HAD DANGEROUS LIGHTNING
...HEAVY RAIN AND PEA SIZE HAIL.

BY 445 PM EST/ 545 EDT...THE STORMS WILL EXTEND FROM 20 SOUTHWEST OF
FORT WAYNE TO 10 MILES NORTHWEST OF MARION INDIANA.   THE STORMS SLOW
MOVEMENT AND HEAVY RAIN MAY CAUSE FLOODING OF LOW SPOTS IN ROADS.

GO INSIDE DURING THESE STORMS.

WITSAMAN
Special weather statement, May 12, 3:47 PM EST, 53 minutes before
INZ003-005-006-OHZ001-122230-

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE FORT WAYNE IN
347 PM EST WED MAY 12 1993

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR  PLACES SOUTH OF
FORT WAYNE IN NORTHEAST INDIANA UNTIL 8 PM EST...

AT 345 PM EST/ 445 EDT...STRONG THUNDERSTORMS WERE SOUTHWEST OF FORT
WAYNE. THE STORMS  EXTENDED FROM 15 TO 40 MILES SOUTHWEST OF THE
CITY. THAT'S FROM AROUND HUNTINGTON TO WABASH INDIANA.  THE STORMS WERE
MOVING SOUTHEAST AT 10 MILES PER HOUR.  THEY HAD DANGEROUS LIGHTNING
...HEAVY RAIN AND PEA SIZE HAIL.

BY 445 PM EST/ 545 EDT...THE STORMS WILL EXTEND FROM 20 MILES SOUTHWEST
OF FORT WAYNE TO 10 MILES NORTHWEST OF MARION INDIANA.   THE STORMS SLOW
MOVEMENT AND HEAVY RAIN MAY CAUSE FLOODING OF LOW SPOTS IN ROADS.

GO INSIDE DURING THESE STORMS.
WITSAMAN
CORRECTED WORDING
Special weather statement, May 12, 3:51 PM EST, 49 minutes before
INZ003-005-006-OHZ001-122230-

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE FORT WAYNE IN
347 PM EST WED MAY 12 1993

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR  PLACES SOUTH OF
FORT WAYNE IN NORTHEAST INDIANA UNTIL 8 PM EST...

AT 345 PM EST/ 445 EDT...STRONG THUNDERSTORMS WERE SOUTHWEST OF FORT
WAYNE. THE STORMS  EXTENDED FROM 15 TO 40 MILES SOUTHWEST OF THE
CITY. THAT'S FROM AROUND HUNTINGTON TO WABASH INDIANA.  THE STORMS WERE
MOVING SOUTHEAST AT 10 MILES PER HOUR.  THEY HAD DANGEROUS LIGHTNING
...HEAVY RAIN AND PEA SIZE HAIL.

BY 445 PM EST/ 545 EDT...THE STORMS WILL EXTEND FROM 20 MILES SOUTHWEST
OF FORT WAYNE TO 10 MILES NORTHWEST OF MARION INDIANA.   THE STORMS SLOW
MOVEMENT AND HEAVY RAIN MAY CAUSE FLOODING OF LOW SPOTS IN ROADS.

GO INSIDE DURING THESE STORMS.
WITSAMAN
CORRECTED WORDING

Nearby

Severe Thunderstorm Warnings in Indiana, 1993Every severe thunderstorm warning in 1993

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.