Alert archive / Indiana / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 1, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Mar 18, 1998, 6:13 PM EST for Hancock County, Marion County, Indiana. It was in force for 47 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
- Mar 18, 1998, 6:13 PM EST (23:13 UTC)
- Expired
- Mar 18, 1998, 7:00 PM EST
- In force
- 47 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
Counties Hancock County, IN, Marion County, IN
The radar
The Indianapolis radar (KIND), 30 km from the middle of the area, began a volume at 23:15 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 nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.2 hours before the alert went out and 189 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 530 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 212 m²/s²
- 0-3 km storm-relative helicity
- 193 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KIND 182313 RRA SVRIND INC059-097-190000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE INDIANAPOLIS IN 613 PM EST WED MAR 18 1998 THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 700 PM EST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN CENTRAL INDIANA ...HANCOCK COUNTY...EASTERN MARION COUNTY AT 610 PM...RADAR HAD A SEVERE THUNDERSTORM PRODUCING LARGE HAIL OVER THE EAST SIDE OF INDIANAPOLIS. THE STORM WAS MOVING NORTHEAST 30 MPH AND WILL BE NEAR MOUNT COMFORT AT 630 PM AND WILKINSON AT 700 PM. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINxDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. DS
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, Mar 18, 5:44 PM EST, 29 minutes before
INZ047-182330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 544 PM EST WED MAR 18 1998 ...THUNDERSTORM MOVING THROUGH INDIANAPOLIS... A THUNDERSTORM WITH HEAVY RAINFALL AND SMALL HAIL WAS OVER THE SOUTHWEST PART OF INDIANAPOLIS. THE STORM WAS MOVING NORTHEAST AND WILL MOVE ACROSS THE CITY BY 630 PM. HEAVY RAINFALL MAY CAUSE SOME LOCAL FLOODING OF STREETS AND LOW AREAS. DS
Special weather statement, Mar 18, 5:44 PM EST, 29 minutes before
INZ047-182330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 544 PM EST WED MAR 18 1998 ...THUNDERSTORM MOVING THROUGH INDIANAPOLIS... A THUNDERSTORM WITH HEAVY RAINFALL AND SMALL HAIL WAS OVER THE SOUTHWEST PART OF INDIANAPOLIS. THE STORM WAS MOVING NORTHEAST AND WILL MOVE ACROSS THE CITY BY 630 PM. HEAVY RAINFALL MAY CAUSE SOME LOCAL FLOODING OF STREETS AND LOW AREAS. DS
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; radar from the NEXRAD Level II archive.