Alert archive / Indiana / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 48, NWS Indianapolis, IN

May 17, 1999Bartholomew County, Brown County, Jackson County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at May 17, 1999, 6:51 PM EST for Bartholomew County, Brown County, Jackson County, Indiana. It was in force for 39 min. 3 reports came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: May 17, 1999, 6:51 PM EST (23:51 UTC)
Expired: May 17, 1999, 7:30 PM EST
In force: 39 min
Issued by: NWS Indianapolis, IN
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Bartholomew County, IN, Brown County, IN, Jackson County, IN

The radar

The Indianapolis radar (KIND), 79 km from the middle of the area, began a volume at 23:54 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 17, 6:55 PM EST	Thunderstorm Wind 50	Elkinsville, IN
May 17, 7:07 PM EST	Thunderstorm Wind 52	Ogilville, IN
May 17, 7:20 PM EST	Thunderstorm Wind 50	Seymour, 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 17, 4:30 PM EST	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.9 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-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: 253 J/kg
Mixed-layer CIN: -138 J/kg
Mixed-layer LCL: 1141 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 73 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.

999 
WUUS1 KIND 172354 RRA
SVRIND
INC005-013-071-180030-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
651 PM EST MON MAY 17 1999

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BARTHOLOMEW COUNTY IN INDIANA
  BROWN COUNTY IN INDIANA
  JACKSON COUNTY IN INDIANA
  
* UNTIL 730PM EST

* AT 644 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 12 MILES SOUTH OF NASHVILLE...OR ABOUT 18 MILES
  SOUTHEAST OF BLOOMINGTON...MOVING EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SEYMOUR AT 710 PM EST
  ELIZABETHTOWN AT 705 PM EST

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER. 
REMEMBER...A SEVERE THUNDERSTORM CAN PRODUCE LARGE DAMAGING 
HAIL...DAMAGING WINDS IN EXCESS OF 55 MPH...DEADLY LIGHTNING...AND 
VERY HEAVY RAIN. THE MAIN THREAT FROM THESE STORMS IS HIGH WINDS.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN INDIANAPOLIS.

LAT...LON 3881 8624 3881 8590 3930 8575 3932 8637

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 17, 5:59 PM EST, 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
559 PM EST MON MAY 17 1999

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

0538 PM    BRUCEVILLE                IN    WIND DAMAGE
05/17/99   KNOX                            TREES DOWNED WITH
                                           ESTIMATED 54 MPH WIND.
                                           REPORTED BY FIRE
                                           DEPARTMENT.

Local storm report, May 17, 6:00 PM EST, 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
600 PM EST MON MAY 17 1999

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

0539 PM    SULLIVAN                  IN    50 MPH TSTM GUST
05/17/99   SULLIVAN                        TORRENTIAL RAIN
                                           PRODUCING STREET FLOODING

Local storm report, May 17, 6:12 PM EST, 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
612 PM EST MON MAY 17 1999

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

0607 PM    1 N LINTON                IN    WIND DAMAGE
05/17/99   GREENE                          TREES DOWNED. REPORTED
                                           BY STATE POLICE.

Local storm report, May 17, 6:12 PM EST, 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
612 PM EST MON MAY 17 1999

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

0607 PM    1 N LINTON                IN    WIND DAMAGE
05/17/99   GREENE                          TREES DOWNED. REPORTED
                                           BY STATE POLICE.

Local storm report, May 17, 6:31 PM EST, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
631 PM EST MON MAY 17 1999

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

0628 PM    1 N CLAY CITY             IN    TORNADO
05/17/99   CLAY                            REPORTED BY VOLUNTEER
                                           FIRE CHIEF....DEBRIS
                                           SIGHTED.

Local storm report, May 17, 6:46 PM EST, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
646 PM EST MON MAY 17 1999

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

0615 PM    SULLIVAN                  IN    WIND DAMAGE
05/17/99   SULLIVAN                        TREE LIMBS
                                           DOWN...REPORTED BY HAM
                                           RADIO OPERATORS

0636 PM    ELLETTSVILLE              IN    50 MPH TSTM GUST
05/17/99   MONROE                          ESTIMATED WINDS BY HAM
                                           OPERATORS

0643 PM    WHITAKER                  IN    65 MPH TSTM GUST
05/17/99   MORGAN                          REPORTED BY HAM RADIO
                                           OPERATOR

The office that day

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

Issued	Product	Office	Counties	Lasted
May 17, 11:57 AM EST	Severe Thunderstorm Warning	IND	Fountain, Montgomery	33 min
May 17, 1:28 PM EST	Severe Thunderstorm Warning	IND	Clinton, Tipton	32 min
May 17, 3:51 PM EST	Severe Thunderstorm Warning	IND	Marion	39 min
May 17, 4:03 PM EST	Severe Thunderstorm Warning	IND	Monroe, Owen	27 min
May 17, 4:06 PM EST	Severe Thunderstorm Warning	IND	Hamilton	24 min
May 17, 4:18 PM EST	Severe Thunderstorm Warning	IND	Morgan	32 min
May 17, 4:29 PM EST	Severe Thunderstorm Warning	IND	Monroe	16 min
May 17, 4:36 PM EST	Severe Thunderstorm Warning	IND	Lawrence	24 min
May 17, 4:44 PM EST	Severe Thunderstorm Warning	IND	Madison	31 min
May 17, 4:49 PM EST	Severe Thunderstorm Warning	IND	Hendricks, Marion	26 min
May 17, 4:52 PM EST	Severe Thunderstorm Warning	IND	Morgan	23 min
May 17, 4:56 PM EST	Severe Thunderstorm Warning	IND	Hamilton, Hancock	34 min
May 17, 5:10 PM EST	Severe Thunderstorm Warning	IND	Brown, Monroe	35 min
May 17, 5:14 PM EST	Severe Thunderstorm Warning	IND	Hamilton, Marion	31 min
May 17, 5:14 PM EST	Severe Thunderstorm Warning	IND	Johnson, Morgan	31 min
May 17, 5:26 PM EST	Severe Thunderstorm Warning	IND	Sullivan, Vigo	34 min
May 17, 5:26 PM EST	Severe Thunderstorm Warning	IND	Daviess, Greene, Knox	34 min
May 17, 5:41 PM EST	Severe Thunderstorm Warning	IND	Lawrence, Monroe	34 min
May 17, 5:41 PM EST	Severe Thunderstorm Warning	IND	Brown	34 min
May 17, 5:44 PM EST	Severe Thunderstorm Warning	IND	Hancock	31 min
May 17, 5:59 PM EST	Severe Thunderstorm Warning	IND	Daviess, Greene, Martin	46 min
May 17, 5:59 PM EST	Severe Thunderstorm Warning	IND	Knox, Sullivan	46 min
May 17, 5:59 PM EST	Severe Thunderstorm Warning	IND	Vigo	46 min
May 17, 6:12 PM EST	Severe Thunderstorm Warning	IND	Clay	48 min
May 17, 6:19 PM EST	Severe Thunderstorm Warning	IND	Brown	41 min
May 17, 6:23 PM EST	Severe Thunderstorm Warning	IND	Owen	37 min
May 17, 6:30 PM EST	Severe Thunderstorm Warning	IND	Lawrence, Monroe	30 min
May 17, 6:40 PM EST	Severe Thunderstorm Warning	IND	Morgan, Putnam	50 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1999 Every severe thunderstorm warning in 1999

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.