Alert archive / Indiana / Tornado Warnings in 1998

Tornado Warning 62, NWS Northern Indiana

July 3, 1998Saint Joseph County, Indiana

NWS Northern Indiana issued this tornado warning at Jul 3, 1998, 9:08 PM EST for Saint Joseph County, Indiana. It was in force for 52 min. 2 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
Jul 3, 1998, 9:08 PM EST (02:08 UTC)
Expired
Jul 3, 1998, 10:00 PM EST
In force
52 min
Issued by
NWS Northern Indiana
Area
Whole counties

County Saint Joseph County, IN

The radar

The Northern Indiana radar (KIWX), 57 km from the middle of the area, began a volume at 02:10 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jul 3, 9:30 PM ESTTornado F0Walkerton, INST JOSEPH COUNTY POLICE REPORTED TORNADO TOUCHDOWN AT ROUTE 104 AND BARLEY ROAD. SHED WAS BLOWN APART AND A BOAT WAS BLOWN ACROSS A FIELD WHICH WAS LATER CONFIRMED BY A NWS EMPLOYEE.
Jul 3, 9:38 PM ESTThunderstorm Wind 50Mishawaka, INNUMEROUS TREES DOWN ALONG WITH POWER OUTAGES.

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.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.1 hours before the alert went out and 254 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, Lincoln, IL at 00:00Z on 1998-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1525 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 1998-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 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
1525 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
1014 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
113 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFWA 040208 RRA
TORFWA
INC141-030300-

BULLETIN- EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
908 PM EST (908 PM CDT) FRI JUL 3 1998

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* TORNADO WARNING FOR...
  ST JOSEPH COUNTY IN NORTH CENTRAL INDIANA

* UNTIL 1000 PM EST

* AT 906 PM EST... DOPPLER RADAR AT NORTH WEBSTER INDICATED A
  DEVELOPING TORNADO 15 MILES NORTHWEST OF SOUTH BEND OR 10 MILES
  NORTHWEST OF LYDICK MOVING SOUTHEAST AT 35 MPH.

* SOME LOCATIONS IN THE PATH OF THIS TORNADO ARE...
  LYDICK
  ROSELAND
  SOUTH BEND
  GRANGER
  MISHAWAKA

IF YOU ARE IN THE PATH OF A TORNADO... THE SAFEST PLACE IS A
BASEMENT. IF NO BASEMENT IS AVAILABLE.p.. SEEK SAFETY IN AN
INTERIOR ROOM AND AVOID WINDOWS.

TEH/JLA

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Northern Indiana wrote its last area forecast discussion before this tornado warning went out at Jul 3, 7:57 PM EST, 1 hour 11 minutes earlier.

Area forecast discussion, Jul 3, 7:57 PM EST, 1 hour 11 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
757 PM EST FRI JUL 3 1998

00Z MESO ANALYSIS SHOWING CURRENT CONVECTION ACRS N IL AND S LM IN
RESPONSE TO SW ENERGY INVOF NE IA SW WI AND SFC COLD FRONT.  LOOKS
LIKE FAIR PUSH WITH FRONT GIVEN LARGE 3HR PRESSURE FALLS.  BEST
MOISTURE CONVERGENCE AND HIGHER THETA-E NOW WORKING INTO NW IN.
ADAS PUTS FRONT FROM NORTH OF ORD TO OMA WITH BEST INSTABILITY
SPREADING EASTWARD.

00Z RAOBS FROM ILX AND DVN INDICATE CAPES 2-3K J/KG.  HEAVY RAIN A
GOOD BET BASED ON DVN DEEP LYR MOISTURE WITH PW OVER 2 INCHES. SVR
WX THREAT WOULD SEEM SLIGHT GIVEN UNIMPRESSIVE SHEAR VALUES BUT
MODIFIED NSHARP DOES SHOW MUCH HIGHER SREH VALUES WITH
SOUTHEASTWARD MOVING STORMS.  THIS INDEED THE CASE WITH CURRENT
SEVERE CONVECTIVE CLUSTER NEAR ORD.

EXTRAPOLATION OF CURRENT LEADING PRECIP EDGE WOULD PUT IT INTO NW OH
COUNTIES CLOSE TO MIDNIGHT.  CURRENT FORECAST LOOK TO HAVE PRETTY
GOOD HANDLE ON THINGS OTHERWISE.

.IWX...NONE.

TEH

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 3, 8:45 PM ESTSevere Thunderstorm WarningIWXLaPorte65 min
Jul 3, 9:21 PM ESTTornado WarningIWXLaPorte, Marshall, Starke49 min
Jul 3, 9:35 PM ESTTornado WarningIWXElkhart50 min
Jul 3, 9:54 PM ESTTornado WarningIWXKosciusko66 min
Jul 3, 10:25 PM ESTSevere Thunderstorm WarningIWXLaGrange, Noble65 min
Jul 3, 10:29 PM ESTSevere Thunderstorm WarningIWXElkhart21 min
Jul 3, 10:49 PM ESTTornado WarningIWXWabash46 min
Jul 3, 10:51 PM ESTTornado WarningIWXFulton, Miami49 min
Jul 3, 11:00 PM ESTTornado WarningIWXHuntington, Whitley50 min
Jul 3, 11:27 PM ESTTornado WarningIWXCass, Miami48 min
Jul 3, 11:35 PM ESTTornado WarningIWXWabash50 min
Jul 3, 11:50 PM ESTTornado WarningIWXHuntington35 min
Jul 3, 11:57 PM ESTTornado WarningIWXMiami48 min
Jul 4, 12:25 AM ESTTornado WarningIWXGrant65 min
Jul 4, 1:21 AM ESTFlash Flood WarningIWXCass, Fulton, Miami3 hr
Jul 4, 4:34 AM ESTFlash Flood WarningIWXCass, Fulton, Miami2 hr
Jul 4, 6:35 AM ESTFlash Flood WarningIWXCass, Fulton, Miami

Nearby

Tornado Warnings in Indiana, 1998Every tornado warning in 1998Tornadoes in 1998

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; radar from the NEXRAD Level II archive.