Alert archive / Indiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 21, NWS Northern Indiana

May 3, 1998Kosciusko County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at May 3, 1998, 4:00 PM EST for Kosciusko County, Indiana. It was in force for 35 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 3, 1998, 4:00 PM EST (21:00 UTC)
Expired
May 3, 1998, 4:35 PM EST
In force
35 min
Issued by
NWS Northern Indiana
Area
Whole counties

County Kosciusko County, IN

The radar

The Northern Indiana radar (KIWX), 19 km from the middle of the area, began a volume at 21:03 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

Detroit, MI (KDTX), launched 12:00Z, 9.0 hours before the alert went out and 259 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 1998-05-03Temperature 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 1998-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 square meters per square second.1939Sfc1 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
706 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
-12 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.

042 
WUUS53 KIWX 032101 RRA
SVRFWA
INC085-032135-

BULLETIN- EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
400 PM EST SUN MAY 3 1998

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN KOSCIUSKO COUNTY IN NORTH CENTRAL INDIANA

* UNTIL 435 PM EST

* AT 359 PM EST... DOPPLER RADAR AT NORTH WEBSTER INDICATED A
  SEVERE THUNDERSTORM 12 MILES SOUTH SOUTHEAST OF WARSAW OR 4 MILES
  EAST OF SILVER LAKE MOVING WEST NORTHWEST AT 10 MPH.

* SOME LOCATIONS IN THE PATH OF THIS SEVERE THUNDERSTORM ARE...
  SILVER LAKE
  CLAYPOOL

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH... LARGE HAIL... AND
DEADLY LIGHTNING. SEEK SAFE SHELTER IMMEDIATELY

TEH/JM

The office that day

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

IssuedProductOfficeCountiesLasted
May 3, 3:21 PM ESTTornado WarningIWXAllen34 min
May 3, 4:10 PM ESTSevere Thunderstorm WarningIWXFulton35 min
May 3, 4:37 PM ESTTornado WarningIWXHuntington33 min
May 3, 5:00 PM ESTTornado WarningIWXAllen35 min
May 3, 5:03 PM ESTFlash Flood WarningIWXAllen2 hr
May 3, 5:34 PM ESTTornado WarningIWXAllen36 min
May 3, 5:47 PM ESTSevere Thunderstorm WarningIWXKosciusko, Whitley33 min
May 3, 6:34 PM ESTSevere Thunderstorm WarningIWXKosciusko36 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.