Alert archive / Indiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 15, NWS Northern Indiana

April 8, 1998Wells County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Apr 8, 1998, 12:53 AM EST for Wells County, Indiana. It was in force for 32 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
Apr 8, 1998, 12:53 AM EST (05:53 UTC)
Expired
Apr 8, 1998, 1:25 AM EST
In force
32 min
Issued by
NWS Northern Indiana
Area
Whole counties

County Wells County, IN

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 7, 7:00 PM ESTTornado WatchSPC6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 5.9 hours before the alert went out and 188 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, Cncnati-Daytn, OH at 00:00Z on 1998-04-08Temperature 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, Cncnati-Daytn, OH at 00:00Z on 1998-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 385 square meters per square second.1939587897117Sfc1 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
1470 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
385 m²/s²
0-3 km storm-relative helicity
517 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.

332 
WUUS53 KIWX 080557 RRA
SVRFWA
INC179-080625-

BULLETIN- EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1253 AM EST WED APR 8 1998

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WELLS COUNTY IN NORTHEASTERN INDIANA

* UNTIL 125 AM EST

* AT 1251 AM EST... DOPPLER RADAR AT NORTH WEBSTER INDICATED A
  SEVERE THUNDERSTORM 5 MILES NORTHEAST OF BLUFFTON OR 1 MILE NORTH
  NORTHWEST OF CRAIGVILLE MOVING NORTHEAST AT 30 MPH.

* THIS SEVERE STORM IS EXPECTED TO REMAIN OVER RURAL AREAS.

SEEK SHELTER INSIDE A STURDY BUILDING AWAY FROM WINDOWS.  SEVERE
THUNDERSTORMS PRODUCE DESTRUCTIVE HAIL AND DAMAGING WINDS.

HOLSTEN/OHARA

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, Apr 7, 7:23 PM EST, 5 hours 30 minutes before
INZ020-022>024-026-032>034-080615-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
719 PM EST (719 PM CDT) TUE APR 7 1998

...TORNADO WATCH IN EFFECT FOR PORTIONS OF CENTRAL INDIANA UNTIL
100 AM EST...

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH FOR THE
FOLLOWING COUNTIES IN CENTRAL INDIANA... WHITE...CASS... MIAMI...
WABASH... GRANT... BLACKFORD... WELLS... AND JAY.  THE WATCH IS IN
EFFECT UNTIL 100 AM EST.

TORNADOES AND SEVERE THUNDERSTORMS WITH LARGE HAIL AND DAMAGING
WINDS ARE POSSIBLE ACROSS THE WATCH AREA LATE TONIGHT INTO THE
EARLY HOURS WEDNESDAY.

SEVERE THUNDERSTORMS PRODUCING TORNADOES HAVE BEEN OCCURRING EARLY
THIS EVENING ACROSS CENTRAL ILLINOIS AND IN PORTIONS OF SOUTHEAST
INDIANA.

THIS IS A POTENTIALLY VERY DANGEROUS SITUATION. ALL PERSONS IN
CENTRAL INDIANA SHOULD STAY ALERT FOR THE POSSIBILITY OF SEVERE
WEATHER INCLUDING TORNADOES TONIGHT. STAY TUNED TO NOAA WEATHER
RADIO AND LOCAL MEDIA OUTLETS FOR UPDATES.
-
HOLLINGSWORTH

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 8, 1:00 AM ESTSevere Thunderstorm WarningIWXAdams35 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1998Every severe thunderstorm warning 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.