Alert archive / Ohio / Tornado Warnings in 1998

Tornado Warning 78, NWS Northern Indiana

July 19, 1998Allen County, Ohio

NWS Northern Indiana issued this tornado warning at Jul 19, 1998, 7:53 PM EDT for Allen County, Ohio. It was in force for 47 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, 7:53 PM EDT (23:53 UTC)
Expired: Jul 19, 1998, 8:40 PM EDT
In force: 47 min
Issued by: NWS Northern Indiana
Area: Whole counties

County Allen County, OH

The radar

The Northern Indiana radar (KIWX), 149 km from the middle of the area, began a volume at 23:53 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, 4:15 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.9 hours before the alert went out and 151 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: 585 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 950 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 132 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFWA 192353
TORFWA
OHC003-200040-

BULLETIN- EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
653 PM EST SUN JUL 19 1998

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* TORNADO WARNING FOR...
  ALLEN COUNTY IN NORTHWESTERN OHIO

* UNTIL 840 PM EDT (740 PM EST)

* AT 752 PM EDT... LAW ENFORCEMENT REPORTS INDICATED A TORNADO IN
  THE VICINITY OF LIMA MOVING EAST AT 35 MPH.

* SOME LOCATIONS IN THE PATH OF THIS TORNADO ARE...
  LAFAYETTE
  HARROD

A TORNADO IS ON THE GROUND! GO TO THE BASEMENT! IF A BASEMENT IS
NOT AVAILABLE... GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR!

TEH/JAL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 6:10 PM EDT	Severe Thunderstorm Warning	IWX	Paulding	50 min
Jul 19, 6:23 PM EDT	Tornado Warning	IWX	Paulding	47 min
Jul 19, 6:38 PM EDT	Severe Thunderstorm Warning	IWX	Putnam	52 min
Jul 19, 6:43 PM EDT	Severe Thunderstorm Warning	IWX	Defiance	47 min
Jul 19, 6:47 PM EDT	Tornado Warning	IWX	Putnam	48 min
Jul 19, 7:05 PM EDT	Severe Thunderstorm Warning	IWX	Paulding, Van Wert	50 min
Jul 19, 7:11 PM EDT	Severe Thunderstorm Warning	IWX	Henry	49 min
Jul 19, 7:29 PM EDT	Severe Thunderstorm Warning	IWX	Allen, Putnam	46 min

Nearby

Tornado Warnings in Ohio, 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.