Alert archive / Indiana / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 56, NWS Indianapolis, IN

May 18, 2000Boone County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at May 18, 2000, 11:31 AM EST for Boone County, Indiana. It was in force for 44 min. No storm report in the archive falls 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.

The facts

Issued
May 18, 2000, 11:31 AM EST (16:31 UTC)
Expired
May 18, 2000, 12:15 PM EST
In force
44 min
Issued by
NWS Indianapolis, IN
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Boone County, IN

The radar

The Indianapolis radar (KIND), 49 km from the middle of the area, began a volume at 16:32 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 18, 11:00 AM ESTTornado WatchSPC5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 4.5 hours before the alert went out and 178 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 2000-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 557 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 12:00Z on 2000-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 328 square meters per square second.1939587897Sfc1 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
557 J/kg
Mixed-layer CIN
-308 J/kg
Mixed-layer LCL
1218 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
328 m²/s²
0-3 km storm-relative helicity
351 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

841 
WUUS53 KIND 181631
SVRIND
INC011-181715-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1131 AM EST THU MAY 18 2000

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN BOONE COUNTY IN CENTRAL INDIANA

* UNTIL 1215 PM EST

* AT 1127 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES SOUTHWEST OF THORNTOWN...OR ABOUT 12
  MILES EAST OF CRAWFORDSVILLE...MOVING EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LEBANON AT 1140 AM EST

A TORNADO WATCH IS IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING. PREPARE TO MOVE TO MOVE
TO A PLACE OF SAFETY IN A STURDY STRUCTURE SUCH AS A BASEMENT OR
SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.

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 4016 8668 4002 8664 4005 8629 4017 8626

JK

The office that day

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

IssuedProductOfficeCountiesLasted
May 18, 10:25 AM ESTSevere Thunderstorm WarningINDFountain, Vermillion, Warren35 min
May 18, 10:48 AM ESTSevere Thunderstorm WarningINDMontgomery27 min
May 18, 11:16 AM ESTSevere Thunderstorm WarningINDMontgomery14 min
May 18, 11:40 AM ESTSevere Thunderstorm WarningINDFountain, Vermillion35 min
May 18, 12:07 PM ESTSevere Thunderstorm WarningINDMontgomery38 min
May 18, 12:29 PM ESTSevere Thunderstorm WarningINDDelaware46 min
May 18, 12:36 PM ESTSevere Thunderstorm WarningINDFountain24 min
May 18, 12:49 PM ESTSevere Thunderstorm WarningINDMontgomery, Tippecanoe26 min
May 18, 1:09 PM ESTSevere Thunderstorm WarningINDClinton36 min
May 18, 1:15 PM ESTSevere Thunderstorm WarningINDBoone, Hamilton45 min
May 18, 1:29 PM ESTSevere Thunderstorm WarningINDHoward, Tipton46 min
May 18, 1:32 PM ESTSevere Thunderstorm WarningINDMadison43 min
May 18, 1:52 PM ESTSevere Thunderstorm WarningINDDelaware38 min
May 18, 2:00 PM ESTSevere Thunderstorm WarningINDHenry45 min
May 18, 2:10 PM ESTSevere Thunderstorm WarningINDRandolph35 min
May 18, 4:29 PM ESTSevere Thunderstorm WarningINDMonroe31 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2000Every severe thunderstorm warning in 2000

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.