Alert archive / Indiana / Tornado Warnings in 1998

Tornado Warning 74, NWS Northern Indiana

July 19, 1998LaPorte County, Saint Joseph County, Indiana

NWS Northern Indiana issued this tornado warning at Jul 19, 1998, 4:26 PM CDT for LaPorte County, Saint Joseph County, Indiana. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 19, 1998, 4:26 PM CDT (21:26 UTC)
Expired: Jul 19, 1998, 5:15 PM CDT
In force: 49 min
Issued by: NWS Northern Indiana
Area: Whole counties

Counties LaPorte County, IN, Saint Joseph County, IN

The radar

The Northern Indiana radar (KIWX), 72 km from the middle of the area, began a volume at 21:26 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 19, 3:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.4 hours before the alert went out and 237 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 954 J/kg
Mixed-layer CIN: -208 J/kg
Mixed-layer LCL: 1868 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 52 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFWA 192127
TORFWA
INC091-141-192215-

BULLETIN- EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
426 PM EST (426 PM CDT) SUN JUL 19 1998

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

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

* UNTIL 515 PM CDT (515 PM EST)

* AT 425 PM CDT (425 PM EST)... DOPPLER RADAR AT NORTH WEBSTER
  INDICATED A DEVELOPING TORNADO 21 MILES SOUTHWEST OF SOUTH BEND
  OR 8 MILES SOUTHWEST OF NORTH LIBERTY MOVING EAST AT 35 MPH.

* SOME LOCATIONS IN THE PATH OF THIS TORNADO ARE...
  NORTH LIBERTY
  LAKEVILLE
  SOUTH BEND
  WAKERTON
  SOUTH CENTER

THIS IS A DANGEROUS STORM! ACT QUICKLY. SEEK SHELTER IN AN
INTERIOR ROOM ON THE LOWEST FLOOR AWAY FROM WINDOWS.

TEH/JAL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 6:59 AM CDT	Severe Thunderstorm Warning	IWX	Pulaski	46 min
Jul 19, 4:17 PM CDT	Severe Thunderstorm Warning	IWX	Marshall, Starke	48 min
Jul 19, 4:42 PM CDT	Severe Thunderstorm Warning	IWX	Fulton	48 min
Jul 19, 4:50 PM CDT	Severe Thunderstorm Warning	IWX	Kosciusko	50 min
Jul 19, 4:53 PM CDT	Severe Thunderstorm Warning	IWX	Miami, Wabash	62 min
Jul 19, 4:53 PM CDT	Severe Thunderstorm Warning	IWX	Cass	62 min
Jul 19, 5:15 PM CDT	Severe Thunderstorm Warning	IWX	Noble, Whitley	50 min
Jul 19, 5:29 PM CDT	Severe Thunderstorm Warning	IWX	Allen, Huntington	61 min
Jul 19, 5:51 PM CDT	Tornado Warning	IWX	Elkhart	49 min
Jul 19, 5:58 PM CDT	Severe Thunderstorm Warning	IWX	Adams, Wells	47 min
Jul 19, 6:03 PM CDT	Severe Thunderstorm Warning	IWX	Grant	47 min
Jul 19, 6:32 PM CDT	Severe Thunderstorm Warning	IWX	Blackford	48 min
Jul 19, 6:41 PM CDT	Severe Thunderstorm Warning	IWX	Jay	64 min
Jul 19, 6:55 PM CDT	Severe Thunderstorm Warning	IWX	Grant	50 min

Nearby

Tornado Warnings in Indiana, 1998 Every tornado warning in 1998 Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.