Alert archive / Indiana / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 7, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 8, 1998, 6:45 PM EST for Jackson 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
- Apr 8, 1998, 6:45 PM EST (23:45 UTC)
- Expired
- Apr 8, 1998, 7:15 PM EST
- In force
- 30 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
County Jackson County, IN
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.8 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
- 55 J/kg
- Mixed-layer CIN
- -86 J/kg
- Mixed-layer LCL
- 955 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
The text
As transmitted, in the capitals the NWS used until 2016.
515 WUUS1 KIND 082344 RRA SVRIND INC071-090015- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE INDIANAPOLIS IN 645 PM EST WED APR 8 1998 THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 715 PM EST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL INDIANA ...JACKSON COUNTY THE SEVERE THUNDERSTORM WAS JUST TO THE SOUTHWEST OF BROWNSTOWN. IT WAS MOVING NORTHEAST AT 20 MPH THE TOWNS IN THE PATH OF THE STORM ARE BROWNSTOWN...SEYMOUR AND CORTLAND. THE SHERIFF REPORTED LARGE HAIL AT MEDORA. IF YOU ARE CAUGHT OUTSIDE... SEEK REFUGE FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND... LARGE HAIL... VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. & HAINES
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
Special weather statement, Apr 8, 2:45 PM EST, 4 hours before
INZ050-058-059-065-066-072>075-080-082045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 245 PM EST WED APR 8 1998 ...TORNADO WATCH FOR SOUTHEAST INDIANA CANCELLED... THE TORNADO WATCH THAT WAS IN EFFECT FOR SOUTHEAST INDIANA UNTIL 600 PM EST HAS BEEN CANCELLED. THUNDERSTORMS FORMED IN THE WATCH AREA...BUT WERE MAINLY SOUTH OF INDIANA. THEREFORE...THE PART OF THE WATCH THAT WAS IN EFFECT FOR SOUTHEAST INDIANA HAS BEEN CANCELLED. ANY FURTHER CHANCES FOR SEVERE WEATHER WILL BE TO THE SOUTH OR EAST OF THE HOOSIER STATE. SHOWERS AND THUNDERSTORMS ARE STILL POSSIBLE TONIGHT IN INDIANA...HOWEVER...SEVER STORMS ARE NOT EXPECTED. CONLEY
Special weather statement, Apr 8, 2:45 PM EST, 4 hours before
INZ050-058-059-065-066-072>075-080-082045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 245 PM EST WED APR 8 1998 ...TORNADO WATCH FOR SOUTHEAST INDIANA CANCELLED... THE TORNADO WATCH THAT WAS IN EFFECT FOR SOUTHEAST INDIANA UNTIL 600 PM EST HAS BEEN CANCELLED. THUNDERSTORMS FORMED IN THE WATCH AREA...BUT WERE MAINLY SOUTH OF INDIANA. THEREFORE...THE PART OF THE WATCH THAT WAS IN EFFECT FOR SOUTHEAST INDIANA HAS BEEN CANCELLED. ANY FURTHER CHANCES FOR SEVERE WEATHER WILL BE TO THE SOUTH OR EAST OF THE HOOSIER STATE. SHOWERS AND THUNDERSTORMS ARE STILL POSSIBLE TONIGHT IN INDIANA...HOWEVER...SEVER STORMS ARE NOT EXPECTED. CONLEY
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 7:33 PM EST | Tornado Warning | IND | Hendricks, Marion | 42 min |
| Apr 7, 8:12 PM EST | Severe Thunderstorm Warning | IND | Marion | 33 min |
| Apr 7, 8:16 PM EST | Tornado Warning | IND | Parke, Vermillion | 59 min |
| Apr 7, 8:34 PM EST | Severe Thunderstorm Warning | IND | Hamilton, Hancock, Madison | 26 min |
| Apr 7, 9:10 PM EST | Tornado Warning | IND | Fountain, Parke | 50 min |
| Apr 7, 9:26 PM EST | Tornado Warning | IND | Montgomery | 49 min |
| Apr 7, 10:02 PM EST | Tornado Warning | IND | Boone | 58 min |
| Apr 7, 10:14 PM EST | Tornado Warning | IND | Montgomery | 46 min |
| Apr 8, 12:11 AM EST | Severe Thunderstorm Warning | IND | Marion | 34 min |
| Apr 8, 12:18 AM EST | Severe Thunderstorm Warning | IND | Johnson | 27 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; the sounding from the Mesonet's radiosonde archive.