Alert archive / Indiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 37, NWS Indianapolis, IN

May 24, 1998Owen County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at May 24, 1998, 3:44 AM EST for Owen County, Indiana. It was in force for 46 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 24, 1998, 3:44 AM EST (08:44 UTC)
Expired
May 24, 1998, 4:30 AM EST
In force
46 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Owen County, IN

The radar

The Indianapolis radar (KIND), 65 km from the middle of the area, began a volume at 08:45 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 nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 8.7 hours before the alert went out and 177 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, Lincoln, IL at 00:00Z on 1998-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 213 joules per kilogram.LCLLFCEL10008507005003002001001 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, Lincoln, IL at 00:00Z on 1998-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 126 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
213 J/kg
Mixed-layer CIN
-286 J/kg
Mixed-layer LCL
533 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
126 m²/s²
0-3 km storm-relative helicity
214 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

619 
WUUS1 KIND 240845 RRA
SVRIND
INC119-240930-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
344 AM EST SUN MAY 24 1998

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  OWEN COUNTY IN WEST CENTRAL INDIANA

* UNTIL 430 AM EST

* AT 342 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 25 MILES NORTHWEST OF BLOOMINGTON NEAR COAL
  CITY... MOVING NORTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SPENCER AT 355 AM EST
  GOSPORT AT 405 AM EST

DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS

ZIMMERMAN

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

Local storm report, May 23, 9:45 PM EST, 5 hours 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
945 PM EST SAT MAY 23 1998

TIME (EST) .....CITY LOCATION..... STATE  ...EVENT...
DATE       ....COUNTY LOCATION....        ...REMARKS...

0925 PM    PRAIRIETON              IN     POWER LINES BLOWN DOWN
05/23/98   VIGO

JAS
Local storm report, May 23, 9:45 PM EST, 5 hours 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
945 PM EST SAT MAY 23 1998

TIME (EST) .....CITY LOCATION..... STATE  ...EVENT...
DATE       ....COUNTY LOCATION....        ...REMARKS...

0925 PM    PRAIRIETON              IN     POWER LINES BLOWN DOWN
05/23/98   VIGO

JAS
Special weather statement, May 23, 11:37 PM EST, 4 hours 7 minutes before
INZ060-061-067>071-240600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1137 PM EST SAT MAY 23 1998

...TORNADO WATCH CANCELLED FOR PORTIONS OF SOUTHWEST INDIANA...

THUNDERSTORMS HAVE MOVED EAST OF SOUTHWEST INDIANA. THE TORNADO WATCH
IS NO LONGER IN EFFECT WEST OF A LINE FROM 10 MILES EAST OF BEDFORD
TO 49 MILES EAST OF EVANSVILLE.

THUNDERSTORMS CONTINUE TO MOVE THROUGH SOUTHEAST INDIANA. THESE
SHOULD CLEAR THE STATE BY 1AM.

A FLASH FLOOD WATCH CONTINUES IN EFFECT FOR PORTIONS OF SOUTHERN
INDIANA. MORE SHOWERS AND THUNDERSTORMS WILL MOVE IN DURING THE
NIGHT. THE RAIN FROM THESE STORMS MAY CAUSE FLASH FLOODING.

HAINES
Special weather statement, May 23, 11:37 PM EST, 4 hours 7 minutes before
INZ060-061-067>071-240600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1137 PM EST SAT MAY 23 1998

...TORNADO WATCH CANCELLED FOR PORTIONS OF SOUTHWEST INDIANA...

THUNDERSTORMS HAVE MOVED EAST OF SOUTHWEST INDIANA. THE TORNADO WATCH
IS NO LONGER IN EFFECT WEST OF A LINE FROM 10 MILES EAST OF BEDFORD
TO 49 MILES EAST OF EVANSVILLE.

THUNDERSTORMS CONTINUE TO MOVE THROUGH SOUTHEAST INDIANA. THESE
SHOULD CLEAR THE STATE BY 1AM.

A FLASH FLOOD WATCH CONTINUES IN EFFECT FOR PORTIONS OF SOUTHERN
INDIANA. MORE SHOWERS AND THUNDERSTORMS WILL MOVE IN DURING THE
NIGHT. THE RAIN FROM THESE STORMS MAY CAUSE FLASH FLOODING.

HAINES
Special weather statement, May 24, 1:04 AM EST, 2 hours 40 minutes before
INZ051>053-060>092-240700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
104 AM EST SUN MAY 24 1998

THE TORNADO WATCH THAT WAS IN EFFECT FOR SOUTHERN INDIANA HAS
EXPIRED. NO FURTHER SEVERE WEATHER IS EXPECTED OVER SOUTHERN INDIANA
OVERNIGHT.

SCATTERED SHOWERS AND SOME THUNDERSTORMS REMAIN OVER SOUTHERN
INDIANA...MOST NUMEROUS OVER THE SOUTHEAST PART. HOWEVER...THESE ARE
NOT EXPECTED TO BECOME SEVERE.

A FLASH FLOOD WATCH REMAINS IN EFFECT OVERNIGHT FOR MUCH OF THE
SOUTHERN THIRD OF INDIANA...EXCEPT EXTREME SOUTH CENTRAL INDIANA.
BRIEF HEAVY RAIN REMAINS POSSIBLE THROUGH THE REST OF THE NIGHT
THROUGHOUT SOUTHERN INDIANA.

ZIMMERMAN

The office that day

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

IssuedProductOfficeCountiesLasted
May 23, 8:16 PM ESTTornado WarningINDDaviess, Knox34 min
May 23, 9:10 PM ESTSevere Thunderstorm WarningINDGreene30 min
May 24, 4:56 AM ESTSevere Thunderstorm WarningINDCarroll, Clinton34 min
May 24, 6:39 AM ESTSevere Thunderstorm WarningINDHamilton31 min
May 24, 2:03 PM ESTSevere Thunderstorm WarningINDJohnson, Shelby32 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.