Alert archive / Indiana / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 83, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Jun 18, 1998, 11:36 PM EST for Hamilton County, Johnson County, Marion County, Indiana. It was in force for 49 min. 3 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
- Jun 18, 1998, 11:36 PM EST (04:36 UTC)
- Expired
- Jun 19, 1998, 12:25 AM EST
- In force
- 49 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
Counties Hamilton County, IN, Johnson County, IN, Marion County, IN
The radar
The Indianapolis radar (KIND), 18 km from the middle of the area, began a volume at 04:38 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 | Remark |
|---|---|---|---|
| Jun 18, 11:45 PM EST | Thunderstorm Wind | Sheridan, IN | Trees and power lines blown down. |
| Jun 18, 11:55 PM EST | Thunderstorm Wind | Central Portion, IN | Trees and power lines blown down. |
| Jun 19, 12:25 AM EST | Thunderstorm Wind | Lawrence, IN | Power lines downed. |
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 |
|---|---|---|---|
| Jun 18, 11:00 PM EST | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 4.6 hours before the alert went out and 201 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.
- Mixed-layer CAPE
- 3764 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 1013 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 113 m²/s²
- 0-3 km storm-relative helicity
- 185 m²/s²
- Significant tornado parameter
- 2.1
- Supercell composite
- 16.9
The text
As transmitted, in the capitals the NWS used until 2016.
201 WUUS1 KIND 190437 RRA SVRIND INC057-081-097-190525- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE INDIANAPOLIS IN 1136 PM EST THU JUN 18 1998 THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... HAMILTON COUNTY IN CENTRAL INDIANA JOHNSON COUNTY IN CENTRAL INDIANA MARION COUNTY IN CENTRAL INDIANA * UNTIL 1225 AM EST * AT 1135 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM 10 MILES NORTHWEST OF NOBLESVILLE TO 20 MILES WEST OF FRANKLIN...MOVING EAST AT 35 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... DOWNTOWN INDIANAPOLIS AROUND 1145 PM NOBLESVILLE AROUND 1140 PM FRANKLIN AROUND 1150 PM GREENWOOD AROUND 1150 PM DAMAGING WINDS AND HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS THESE STORMS HAVE KNOCKED TREES DOWN ACROSS THE WESTERN PART OF THE STATE AS THEY MOVED THROUGH. LASHLEY/EDDY &
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 10:07 PM EST | Severe Thunderstorm Warning | IND | Carroll, Tippecanoe | 48 min |
| Jun 18, 10:16 PM EST | Severe Thunderstorm Warning | IND | Parke, Vermillion, Vigo | 49 min |
| Jun 18, 10:37 PM EST | Severe Thunderstorm Warning | IND | Clay | 33 min |
| Jun 18, 10:48 PM EST | Severe Thunderstorm Warning | IND | Montgomery, Putnam | 47 min |
| Jun 18, 11:15 PM EST | Severe Thunderstorm Warning | IND | Hendricks, Morgan | 45 min |
| Jun 18, 11:49 PM EST | Severe Thunderstorm Warning | IND | Hancock, Shelby | 31 min |
| Jun 18, 11:53 PM EST | Severe Thunderstorm Warning | IND | Madison | 32 min |
| Jun 18, 11:56 PM EST | Severe Thunderstorm Warning | IND | Greene, Monroe | 34 min |
| Jun 19, 12:01 AM EST | Severe Thunderstorm Warning | IND | Brown | 34 min |
| Jun 19, 12:09 AM EST | Severe Thunderstorm Warning | IND | Decatur, Henry, Rush | 46 min |
| Jun 19, 12:09 AM EST | Severe Thunderstorm Warning | IND | Delaware | 46 min |
| Jun 19, 12:09 AM EST | Severe Thunderstorm Warning | IND | Bartholomew | 46 min |
| Jun 19, 12:25 AM EST | Severe Thunderstorm Warning | IND | Knox, Sullivan | 35 min |
| Jun 19, 12:34 AM EST | Severe Thunderstorm Warning | IND | Randolph | 31 min |
| Jun 19, 1:08 AM EST | Severe Thunderstorm Warning | IND | Owen, Putnam | 32 min |
| Jun 19, 1:19 AM EST | Severe Thunderstorm Warning | IND | Hendricks, Monroe, Morgan | 31 min |
| Jun 19, 1:23 AM EST | Severe Thunderstorm Warning | IND | Lawrence | 32 min |
Nearby
Severe Thunderstorm Warnings in Indiana, 1998Every 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.