Alert archive / Indiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 57, NWS Northern Indiana

May 31, 1998Grant County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at May 31, 1998, 1:48 PM EST for Grant County, Indiana. It was in force for 62 min. 4 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 31, 1998, 1:48 PM EST (18:48 UTC)
Expired: May 31, 1998, 2:50 PM EST
In force: 62 min
Issued by: NWS Northern Indiana
Area: Whole counties

County Grant County, IN

The radar

The Northern Indiana radar (KIWX), 94 km from the middle of the area, began a volume at 18:50 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.

What was reported inside it

Time	Report	Where
May 31, 1:50 PM EST	Hail 1.75	Fairmount, IN
May 31, 2:02 PM EST	Thunderstorm Wind 60	Gas City, IN
May 31, 2:25 PM EST	Hail 1.75	Gas City, IN
May 31, 2:25 PM EST	Thunderstorm Wind 65	Gas City, IN

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

Issued	Product	Office	Lasted
May 31, 12:15 PM EST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 6.8 hours before the alert went out and 199 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1259 J/kg
Mixed-layer CIN: -256 J/kg
Mixed-layer LCL: 874 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 106 m²/s²
0-3 km storm-relative helicity: 206 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFWA 311848 RRA
SVRFWA
INC053-311950-

BULLETIN- EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
148 PM EST SUN MAY 31 1998

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

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

* UNTIL 250 PM EST

* AT 146 PM EST... DOPPLER RADAR AT NORTH WEBSTER INDICATED A
  SEVERE THUNDERSTORM 12 MILES SOUTHWEST OF MARION OR 7 MILES WEST
  OF FAIRMOUNT MOVING NORTHEAST AT 40 MPH.

* SOME LOCATIONS IN THE PATH OF THIS SEVERE THUNDERSTORM ARE...
  FAIRMOUNT
  SOUTH OF MARION
  GAS CITY
  FOWLERTON
  MATTHEWS

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

JAH/TL

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.

NWS Northern Indiana wrote its last area forecast discussion before this severe thunderstorm warning went out at May 31, 10:14 AM EST, 3 hours 34 minutes earlier.

Area forecast discussion, May 31, 10:14 AM EST, 3 hours 34 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1014 AM EST SUN MAY 31 1998

THUNDERSTORMS THE MAIN CONCERN THIS UPDATE. BEST CHANCE OF CONVECTION
OVER SE ZONES INTO EARLY AFTERNOON BUT WOULD NOT BE SURPRISED IF A
FEW SHOWERS OR THUNDERSTORMS POPPED UP ELSEWHERE AS SECONDARY FRONT
SWEEPS ACROSS THE AREA. ADAP FIELDS INDICATING THE MOST UNSTABLE AIR
FROM NORTHERN INDIANA INTO EAST CENTRAL MISSOURI WHERE ENHANCED
CLOUDINESS IS CURRENTLY DEVELOPING PER SATELLITE LOOP. ETA
INDICATING CAPES APPROACHING 3000 J/KG OVER SE ZONES BY 18Z. SEVERAL
PARAMETERS STILL FAVORABLE INTO EARLY AFTERNOON OVER SE HALF OF CWA
FOR STRONG/SEVERE THUNDERSTORMS. WOULD LOWER POPS IN INDIANA ZONES
TO CHANCE AND ADD CHANCE POPS TO MI ZONES ST. JOSEPH TO HILLSDALE
THROUGH EARLY AFTERNOON.

1 KM VIS INDICATING A FAIR AMOUNT OF BREAKS IN THE CLOUDS THIS
MORNING WHICH SHOULD KEEP TEMPS ON TRACK TO NEAR CURRENT FORECAST
VALUES IN OH ZONES. TEMPERATURES WILL NEED TO BE ADJUSTED IN
INDIANA ZONES...PROBABLY INTO THE MID 80S. MICHIGAN ZONES WILL LIKELY
NEED TO BE TWEAKED ALSO AS TEMPERATURES HAVE CLIMBED INTO THE LOW 80S
IN SOME LOCATIONS. CAA SHOULD BRING TEMPS DOWN BEFORE MICHIGAN
ZONES CLIMB AJNY HIGHER THAN 85.

.IWX...NONE.

TAL

In the hours before

Local storm report, May 31, 1:28 PM EST, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH WEBSTER INDIANA
128 PM EST SUN MAY 31 1998

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

0116 PM    HICKSVILLE                OH   1 INCH HAIL
05/31/98   DEFIANCE

Local storm report, May 31, 1:30 PM EST, 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH WEBSTER INDIANA
130 PM EST SUN MAY 31 1998

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

0116 PM    HICKSVILLE                OH   1 INCH HAIL
05/31/98   DEFIANCE

0129 PM    HICKSVILLE                OH   1.75 INCH HAIL
05/31/98   DEFIANCE

Local storm report, May 31, 1:38 PM EST, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH WEBSTER INDIANA
138 PM EST SUN MAY 31 1998

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

0105 PM    COLUMBIA CITY             IN   .88 INCH HAIL
05/31/98   WHITLEY

0116 PM    HICKSVILLE                OH   1 INCH HAIL
05/31/98   DEFIANCE

0129 PM    HICKSVILLE                OH   1.75 INCH HAIL
05/31/98   DEFIANCE

0134 PM    HICKSVILLE                OH   WIND DAMAGE
05/31/98   DEFIANCE                       8 TO 10 INCH DIAMETER TREE
                   ~                       LIMBS DOWN

Local storm report, May 31, 1:38 PM EST, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH WEBSTER INDIANA
138 PM EST SUN MAY 31 1998

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

0105 PM    COLUMBIA CITY             IN   .88 INCH HAIL
05/31/98   WHITLEY

0116 PM    HICKSVILLE                OH   1 INCH HAIL
05/31/98   DEFIANCE

0129 PM    HICKSVILLE                OH   1.75 INCH HAIL
05/31/98   DEFIANCE

0134 PM    HICKSVILLE                OH   WIND DAMAGE
05/31/98   DEFIANCE                       8 TO 10 INCH DIAMETER TREE
                   ~                       LIMBS DOWN

Local storm report, May 31, 1:48 PM EST, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH WEBSTER INDIANA
148 PM EST SUN MAY 31 1998

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

0105 PM    COLUMBIA CITY             IN   .88 INCH HAIL
05/31/98   WHITLEY

0116 PM    HICKSVILLE                OH   1 INCH HAIL
05/31/98   DEFIANCE

0129 PM    HICKSVILLE                OH   1.75 INCH HAIL
05/31/98   DEFIANCE

0134 PM    HICKSVILLE                OH   WIND DAMAGE
05/31/98   DEFIANCE                       8 TO 10 INCH DIAMETER TREE
                                          LIMBS DOWN

0146 PM    5 W DEFIANCE              OH   .88 INCH HAIL
05/31/98   DEFIANCE

Local storm report, May 31, 1:48 PM EST, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH WEBSTER INDIANA
148 PM EST SUN MAY 31 1998

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

0105 PM    COLUMBIA CITY             IN   .88 INCH HAIL
05/31/98   WHITLEY

0116 PM    HICKSVILLE                OH   1 INCH HAIL
05/31/98   DEFIANCE

0129 PM    HICKSVILLE                OH   1.75 INCH HAIL
05/31/98   DEFIANCE

0134 PM    HICKSVILLE                OH   WIND DAMAGE
05/31/98   DEFIANCE                       8 TO 10 INCH DIAMETER TREE
                                          LIMBS DOWN

0146 PM    5 W DEFIANCE              OH   .88 INCH HAIL
05/31/98   DEFIANCE

The office that day

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

Issued	Product	Office	Counties	Lasted
May 31, 11:54 AM EST	Tornado Warning	IWX	LaGrange, Steuben	36 min
May 31, 12:14 PM EST	Tornado Warning	IWX	DeKalb	51 min
May 31, 12:17 PM EST	Severe Thunderstorm Warning	IWX	Noble	48 min
May 31, 12:35 PM EST	Tornado Warning	IWX	Noble	50 min
May 31, 12:49 PM EST	Tornado Warning	IWX	Allen	46 min
May 31, 1:05 PM EST	Tornado Warning	IWX	DeKalb	30 min
May 31, 1:07 PM EST	Severe Thunderstorm Warning	IWX	Whitley	48 min
May 31, 1:35 PM EST	Severe Thunderstorm Warning	IWX	Allen	50 min
May 31, 1:39 PM EST	Severe Thunderstorm Warning	IWX	Allen	46 min
May 31, 1:59 PM EST	Severe Thunderstorm Warning	IWX	Blackford	46 min
May 31, 2:05 PM EST	Tornado Warning	IWX	Blackford, Grant	50 min
May 31, 2:09 PM EST	Severe Thunderstorm Warning	IWX	Jay	51 min
May 31, 2:31 PM EST	Severe Thunderstorm Warning	IWX	Adams, Wells	49 min
May 31, 3:38 PM EST	Severe Thunderstorm Warning	IWX	Grant	47 min
May 31, 4:15 PM EST	Tornado Warning	IWX	Blackford	35 min
May 31, 4:23 PM EST	Severe Thunderstorm Warning	IWX	Jay	32 min
May 31, 4:29 PM EST	Tornado Warning	IWX	Jay	31 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1998 Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.