Alert archive / Indiana / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 78, NWS Indianapolis, IN

June 11, 1999Montgomery County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jun 11, 1999, 1:36 PM EST for Montgomery 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, 1999, 1:36 PM EST (18:36 UTC)
Expired
Jun 11, 1999, 2:10 PM EST
In force
34 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Montgomery County, IN

The radar

The Indianapolis radar (KIND), 64 km from the middle of the area, began a volume at 18:39 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
Jun 11, 1:30 PM ESTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 6.6 hours before the alert went out and 146 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 1999-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 380 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 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 1999-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 square meters per square second.1939Sfc1 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
380 J/kg
Mixed-layer CIN
-95 J/kg
Mixed-layer LCL
1398 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
38 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, Jun 11, 12:35 PM EST, 1 hour 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1235 PM EST FRI JUN 11 1999

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

1207 PM    4 W LINTON                IN    WIND DAMAGE
06/11/99   GREENE                          SEVERAL TREES DOWN.
                                           REPORTED BY COUNTY
                                           SHIRIFF.
Local storm report, Jun 11, 12:35 PM EST, 1 hour 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1235 PM EST FRI JUN 11 1999

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

1207 PM    4 W LINTON                IN    WIND DAMAGE
06/11/99   GREENE                          SEVERAL TREES DOWN.
                                           REPORTED BY COUNTY
                                           SHIRIFF.
Local storm report, Jun 11, 12:46 PM EST, 50 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1246 PM EST FRI JUN 11 1999

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

1244 PM    BRAZIL                    IN    WIND DAMAGE
06/11/99   CLAY                            TREES DOWN. REPORTED BY
                                           COUNTY SHERIFF.
Local storm report, Jun 11, 12:46 PM EST, 50 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1246 PM EST FRI JUN 11 1999

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

1244 PM    BRAZIL                    IN    WIND DAMAGE
06/11/99   CLAY                            TREES DOWN. REPORTED BY
                                           COUNTY SHERIFF.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 12:33 PM ESTSevere Thunderstorm WarningINDClay47 min
Jun 11, 12:50 PM ESTSevere Thunderstorm WarningINDParke55 min
Jun 11, 2:09 PM ESTSevere Thunderstorm WarningINDTippecanoe51 min
Jun 11, 2:33 PM ESTSevere Thunderstorm WarningINDMarion27 min
Jun 11, 2:46 PM ESTSevere Thunderstorm WarningINDHamilton44 min
Jun 11, 2:49 PM ESTSevere Thunderstorm WarningINDCarroll46 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.