Alert archive / Indiana / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 46, NWS Indianapolis, IN

May 17, 1999Lawrence County, Monroe County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at May 17, 1999, 6:30 PM EST for Lawrence County, Monroe County, Indiana. It was in force for 30 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 17, 1999, 6:30 PM EST (23:30 UTC)
Expired
May 17, 1999, 7:00 PM EST
In force
30 min
Issued by
NWS Indianapolis, IN
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Lawrence County, IN, Monroe County, IN

The radar

The Indianapolis radar (KIND), 81 km from the middle of the area, began a volume at 23:34 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 watch it was issued in

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

IssuedProductOfficeLasted
May 17, 4:30 PM ESTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.5 hours before the alert went out and 221 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 12:00Z on 1999-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 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 12:00Z on 1999-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 square meters per square second.193958Sfc1 km3 km6 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
8 J/kg
Mixed-layer CIN
-466 J/kg
Mixed-layer LCL
1464 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, 5:58 PM EST, 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
558 PM EST MON MAY 17 1999

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

0539 PM    VINCENNES                 IN    WIND DAMAGE
05/17/99   KNOX                            LARGE TREES DOWNED.
                                           REPORTED BY FIRE
                                           DEPARTMENT.
Local storm report, May 17, 5:59 PM EST, 31 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, 5:59 PM EST, 31 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, 30 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, 18 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, 18 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.

The office that day

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

IssuedProductOfficeCountiesLasted
May 17, 11:57 AM ESTSevere Thunderstorm WarningINDFountain, Montgomery33 min
May 17, 1:28 PM ESTSevere Thunderstorm WarningINDClinton, Tipton32 min
May 17, 3:51 PM ESTSevere Thunderstorm WarningINDMarion39 min
May 17, 4:03 PM ESTSevere Thunderstorm WarningINDMonroe, Owen27 min
May 17, 4:06 PM ESTSevere Thunderstorm WarningINDHamilton24 min
May 17, 4:18 PM ESTSevere Thunderstorm WarningINDMorgan32 min
May 17, 4:29 PM ESTSevere Thunderstorm WarningINDMonroe16 min
May 17, 4:36 PM ESTSevere Thunderstorm WarningINDLawrence24 min
May 17, 4:44 PM ESTSevere Thunderstorm WarningINDMadison31 min
May 17, 4:49 PM ESTSevere Thunderstorm WarningINDHendricks, Marion26 min
May 17, 4:52 PM ESTSevere Thunderstorm WarningINDMorgan23 min
May 17, 4:56 PM ESTSevere Thunderstorm WarningINDHamilton, Hancock34 min
May 17, 5:10 PM ESTSevere Thunderstorm WarningINDBrown, Monroe35 min
May 17, 5:14 PM ESTSevere Thunderstorm WarningINDHamilton, Marion31 min
May 17, 5:14 PM ESTSevere Thunderstorm WarningINDJohnson, Morgan31 min
May 17, 5:26 PM ESTSevere Thunderstorm WarningINDSullivan, Vigo34 min
May 17, 5:26 PM ESTSevere Thunderstorm WarningINDDaviess, Greene, Knox34 min
May 17, 5:41 PM ESTSevere Thunderstorm WarningINDLawrence, Monroe34 min
May 17, 5:41 PM ESTSevere Thunderstorm WarningINDBrown34 min
May 17, 5:44 PM ESTSevere Thunderstorm WarningINDHancock31 min
May 17, 5:59 PM ESTSevere Thunderstorm WarningINDDaviess, Greene, Martin46 min
May 17, 5:59 PM ESTSevere Thunderstorm WarningINDKnox, Sullivan46 min
May 17, 5:59 PM ESTSevere Thunderstorm WarningINDVigo46 min
May 17, 6:12 PM ESTSevere Thunderstorm WarningINDClay48 min
May 17, 6:19 PM ESTSevere Thunderstorm WarningINDBrown41 min
May 17, 6:23 PM ESTSevere Thunderstorm WarningINDOwen37 min
May 17, 6:40 PM ESTSevere Thunderstorm WarningINDMorgan, Putnam50 min
May 17, 6:51 PM ESTSevere Thunderstorm WarningINDBartholomew, Brown, Jackson39 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1999Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.