Alert archive / Ohio / Tornado Warnings in 1998

Tornado Warning 21, NWS Northern Indiana

May 31, 1998Henry County, Ohio

NWS Northern Indiana issued this tornado warning at May 31, 1998, 2:45 PM EDT for Henry County, Ohio. It was in force for 50 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
May 31, 1998, 2:45 PM EDT (18:45 UTC)
Expired
May 31, 1998, 3:35 PM EDT
In force
50 min
Issued by
NWS Northern Indiana
Area
Whole counties

County Henry County, OH

The radar

The Northern Indiana radar (KIWX), 136 km from the middle of the area, began a volume at 18:45 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.

IssuedProductOfficeLasted
May 31, 1:15 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 6.8 hours before the alert went out and 163 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 12:00Z on 1998-05-31Temperature 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 12:00Z on 1998-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
1019 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
18 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 KFWA 311844 RRA
TORFWA
OHC069-311930-

BULLETIN- EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
145 PM EST SUN MAY 31 1998

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

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

* UNTIL 335 PM EDT (235 PM EST)

* AT 241 PM EDT... SHERIFF REPORTS INDICATED A POSSIBLE
  TORNADO JUST NORTH OF NAPOLEON MOVING SOUTHEAST AT 40 MPH.

* SOME LOCATIONS IN THE PATH OF THIS TORNADO ARE...
  NAPOLEON
  DESHLER
  MCCLURE
  GRELTON

SEEK SHELTER INSIDE A STURDY BUILDING AWAY FROM WINDOWS.

JAH/TL

The office that day

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

IssuedProductOfficeCountiesLasted
May 31, 1:24 PM EDTSevere Thunderstorm WarningIWXWilliams46 min
May 31, 1:59 PM EDTSevere Thunderstorm WarningIWXDefiance, Fulton, Henry46 min
May 31, 2:16 PM EDTTornado WarningIWXDefiance, Paulding49 min
May 31, 2:51 PM EDTTornado WarningIWXPutnam64 min
May 31, 3:40 PM EDTSevere Thunderstorm WarningIWXAllen, Van Wert45 min

Nearby

Tornado Warnings in Ohio, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.