Alert archive / Indiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 35, NWS Indianapolis, IN

May 23, 1998Marion County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at May 23, 1998, 2:03 PM EST for Marion 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
May 23, 1998, 2:03 PM EST (19:03 UTC)
Expired
May 23, 1998, 2:35 PM EST
In force
32 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Marion County, IN

The radar

The Indianapolis radar (KIND), 15 km from the middle of the area, began a volume at 19:02 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 nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.1 hours before the alert went out and 204 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 12:00Z on 1998-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 1998-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 103 square meters per square second.19395878Sfc1 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
497 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
103 m²/s²
0-3 km storm-relative helicity
198 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.

397 
WUUS1 KIND 231905 RRA
SVRIND
INC097-231935-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
203 PM EST SAT MAY 23 1998

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MARION COUNTY IN CENTRAL INDIANA

* UNTIL 235 PM EST

* AT 200 PM EST...A NATIONAL WEATHER SERVICE METEOROLOGIST REPORTED
  ONE INCH DIAMETERE HAIL AT 38TH AND I-465 AT 157 PM EST. THIS STORM
  IS HEADED INTO DOWNTOWN INDIANAPOLIS.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  DOWNTOWN INDIANAPOLIS AROUND 210 PM EST

LARGE HAIL...HEAVY RAIN AND DANGEROUS LIGHTNING ARE LIKELY. GO TO A
STURDY BUILDING AND STAY AWAY FROM WINDOWS

DRT


&

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 23, 1:32 AM ESTSevere Thunderstorm WarningINDDaviess, Martin43 min
May 23, 7:01 AM ESTSevere Thunderstorm WarningINDMonroe34 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; radar from the NEXRAD Level II archive.