Alert archive / Indiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 66, NWS Northern Indiana

June 11, 1998Elkhart County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Jun 11, 1998, 3:46 PM EST for Elkhart County, Indiana. It was in force for 34 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
Jun 11, 1998, 3:46 PM EST (20:46 UTC)
Expired
Jun 11, 1998, 4:20 PM EST
In force
34 min
Issued by
NWS Northern Indiana
Area
Whole counties

County Elkhart County, IN

The radar

The Northern Indiana radar (KIWX), 30 km from the middle of the area, began a volume at 20:46 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, 8.8 hours before the alert went out and 236 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 1998-06-11Temperature 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 1998-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 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
521 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
94 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.

251 
WUUS53 KIWX 112045 RRA
SVRFWA
INC039-112120-

BULLETIN- EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
346 PM EST THU JUN 11 1998

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ELKHART COUNTY IN NORTH CENTRAL INDIANA

* UNTIL 420 PM EST

* AT 345 PM EST... DOPPLER RADAR AT NORTH WEBSTER INDICATED A
  SEVERE THUNDERSTORM 8 MILES SOUTHWEST OF ELKHART MOVING NORTHEAST
  AT 60 MPH.

* SOME LOCATIONS IN THE PATH OF THIS SEVERE THUNDERSTORM ARE...
  ELKHART
  DUNLAP
  GOSHEN
  BRISTOL
  MIDDLEBURY

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

JAH/JM

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, Jun 11, 10:59 AM EST, 4 hours 47 minutes before
INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-005-
015-016-024-025-111730-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1059 AM EST THU JUN 11 1998

...SEVERE WEATHER POTENTIAL STATEMENT FOR EXTREME SOUTHWEST LOWER
MICHIGAN...NORTHWEST OHIO...AND MOST OF NORTHERN INDIANA...

THERE IS A SLIGHT RISK OF SEVERE WEATHER THROUGHOUT THE AREA THIS
AFTERNOON AND EVENING.

PERIODS OF SHOWERS AND THUNDERSTORMS ARE EXPECTED ACROSS THE REGION
THIS AFTERNOON AND THIS EVENING.  A SURFACE WARM FRONT MOVING
THROUGH NORTHERN INDIANA AND NORTHWEST OHIO THIS AFTERNOON WILL
RESULT IN INCREASING INSTABILITY OVER THE AREA... AND THE WIND
FIELDS WILL GRADUALLY BECOME MORE FAVORABLE FOR SEVERE WEATHER
DEVELOPMENT.  SOME THUNDERSTORMS LATE THIS AFTERNOON AND EVENING
COULD PRODUCE LARGE HAIL AND DAMAGING WINDS.

STORM SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND THIS
EVENING.  STAY TUNED TO THIS BROADCAST FOR LATER FORECASTS AND
UPDATES.

MARGRAF!
Special weather statement, Jun 11, 10:59 AM EST, 4 hours 47 minutes before
INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-005-
015-016-024-025-111730-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1059 AM EST THU JUN 11 1998

...SEVERE WEATHER POTENTIAL STATEMENT FOR EXTREME SOUTHWEST LOWER
MICHIGAN...NORTHWEST OHIO...AND MOST OF NORTHERN INDIANA...

THERE IS A SLIGHT RISK OF SEVERE WEATHER THROUGHOUT THE AREA THIS
AFTERNOON AND EVENING.

PERIODS OF SHOWERS AND THUNDERSTORMS ARE EXPECTED ACROSS THE REGION
THIS AFTERNOON AND THIS EVENING.  A SURFACE WARM FRONT MOVING
THROUGH NORTHERN INDIANA AND NORTHWEST OHIO THIS AFTERNOON WILL
RESULT IN INCREASING INSTABILITY OVER THE AREA... AND THE WIND
FIELDS WILL GRADUALLY BECOME MORE FAVORABLE FOR SEVERE WEATHER
DEVELOPMENT.  SOME THUNDERSTORMS LATE THIS AFTERNOON AND EVENING
COULD PRODUCE LARGE HAIL AND DAMAGING WINDS.

STORM SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND THIS
EVENING.  STAY TUNED TO THIS BROADCAST FOR LATER FORECASTS AND
UPDATES.

MARGRAF!

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 2:58 PM ESTSevere Thunderstorm WarningIWXLaPorte, Starke47 min
Jun 11, 3:22 PM ESTSevere Thunderstorm WarningIWXMarshall, Saint Joseph43 min
Jun 11, 5:48 PM ESTTornado WarningIWXPulaski, Starke42 min
Jun 11, 6:27 PM ESTTornado WarningIWXPulaski, Starke33 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.