Alert archive / Indiana / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 54, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 18, 1997, 4:00 PM EST for Cass County, Indiana. It was in force for 45 min. 1 report 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
- Jul 18, 1997, 4:00 PM EST (21:00 UTC)
- Expired
- Jul 18, 1997, 4:45 PM EST
- In force
- 45 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
County Cass County, IN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 18, 4:25 PM EST | Thunderstorm Wind | Lucerne, IN | Thunderstorm winds blew down large tree limbs near Lucerne. |
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 |
|---|---|---|---|
| Jul 18, 1:45 PM EST | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 9.0 hours before the alert went out and 202 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
- 2335 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 952 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KIND 182100 RRA SVRIND INC017-182145- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE INDIANAPOLIS IN 400 PM EST FRI JUL 18 1997 THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 445 PM EST FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH CENTRAL INDIANA ...NORTHERN CASS COUNTY AT 358 PM EST...RADAR SHOWED A SEVERE THUNDERSTORM 10 MILES NORTH OF LOGANSPORT...NEAR LEASES CORNER. THE STORM WAS MOVING SOUTHEAST AT 15 MPH. SOME CITIES IN THE PATH OF THE STORM INCLUDE LOGANSPORT AND TWELVE MILE. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND `VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. CONLEY
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 3:32 PM EST | Severe Thunderstorm Warning | IND | Miami | 43 min |
| Jul 18, 5:35 PM EST | Severe Thunderstorm Warning | IND | Carroll | 40 min |
| Jul 18, 6:07 PM EST | Severe Thunderstorm Warning | IND | Fountain, Montgomery | 53 min |
| Jul 18, 6:14 PM EST | Severe Thunderstorm Warning | IND | Howard | 46 min |
| Jul 18, 6:16 PM EST | Severe Thunderstorm Warning | IND | Boone, Clinton | 44 min |
Nearby
Severe Thunderstorm Warnings in Indiana, 1997Every severe thunderstorm warning in 1997
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.