Alert archive / Indiana / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 39, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at May 24, 1998, 6:39 AM EST for Hamilton County, Indiana. It was in force for 31 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
- May 24, 1998, 6:39 AM EST (11:39 UTC)
- Expired
- May 24, 1998, 7:10 AM EST
- In force
- 31 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
County Hamilton County, IN
The radar
The Indianapolis radar (KIND), 45 km from the middle of the area, began a volume at 11:43 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 00:00Z, 11.7 hours before the alert went out and 205 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
- 706 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 133 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KIND 241139 RRA SVRIND INC057-241210- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE INDIANAPOLIS IN 639 AM EST SUN MAY 24 1998 THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN AND CENTRAL HAMILTON COUNTY IN CENTRAL INDIANA * UNTIL 710 AM EST * AT 637 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 25 MILES NORTH OF DOWNTOWN INDIANAPOLIS NEAR SHERIDAN... MOVING EAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... ARCADIA AND ATLANTA AT 650 AM OMEGA AND WALNUT GROVE AT 700 AM DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS! ZIMMERMAN
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, May 24, 1:04 AM EST, 5 hours 35 minutes before
INZ051>053-060>092-240700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 104 AM EST SUN MAY 24 1998 THE TORNADO WATCH THAT WAS IN EFFECT FOR SOUTHERN INDIANA HAS EXPIRED. NO FURTHER SEVERE WEATHER IS EXPECTED OVER SOUTHERN INDIANA OVERNIGHT. SCATTERED SHOWERS AND SOME THUNDERSTORMS REMAIN OVER SOUTHERN INDIANA...MOST NUMEROUS OVER THE SOUTHEAST PART. HOWEVER...THESE ARE NOT EXPECTED TO BECOME SEVERE. A FLASH FLOOD WATCH REMAINS IN EFFECT OVERNIGHT FOR MUCH OF THE SOUTHERN THIRD OF INDIANA...EXCEPT EXTREME SOUTH CENTRAL INDIANA. BRIEF HEAVY RAIN REMAINS POSSIBLE THROUGH THE REST OF THE NIGHT THROUGHOUT SOUTHERN INDIANA. ZIMMERMAN
Special weather statement, May 24, 4:30 AM EST, 2 hours 9 minutes before
INZ003>009-012>018-020>049-051>057-060>065-067>072-241600- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE INDIANAPOLIS IN 430 AM EST SUN MAY 24 1998 THUNDERSTORMS ARE LIKELY OVER NORTHERN AND CENTRAL INDIANA TODAY... AND THERE IS A CHANCE OF THUNDERSTORMS IN THE SOUTH. THE GREATEST CHANCE OF THUNDERSTORMS WILL BE THIS MORNING. ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE...WITH THE MAIN THREAT BEING LARGE HAIL. HEAVY RAIN IS POSSIBLE IN ANY THUNDpERSTORM. ALTHOUGH NOT ANTICIPATED AT THIS TIME...SPOTTER ACTIVATION MAY BE REQUESTED LATER TODAY. ZIMMERMAN
Special weather statement, May 24, 4:30 AM EST, 2 hours 9 minutes before
INZ003>009-012>018-020>049-051>057-060>065-067>072-241600- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE INDIANAPOLIS IN 430 AM EST SUN MAY 24 1998 THUNDERSTORMS ARE LIKELY OVER NORTHERN AND CENTRAL INDIANA TODAY... AND THERE IS A CHANCE OF THUNDERSTORMS IN THE SOUTH. THE GREATEST CHANCE OF THUNDERSTORMS WILL BE THIS MORNING. ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE...WITH THE MAIN THREAT BEING LARGE HAIL. HEAVY RAIN IS POSSIBLE IN ANY THUNDpERSTORM. ALTHOUGH NOT ANTICIPATED AT THIS TIME...SPOTTER ACTIVATION MAY BE REQUESTED LATER TODAY. ZIMMERMAN
Local storm report, May 24, 5:13 AM EST, 1 hour 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
513 AM EST SUN MAY 24 1998
TIME (EST) .....CITY LOCATION.....STATE ...EVENT...
DATE ....COUNTY LOCATION.... ...REMARKS...
0435 AM NEW RICHMOND IN WIND DAMAGE
05/24/98 MONTGOMERY TREES DOWN...ONE ON A
HOUSE. REPORTED BY
MONTGOMERY CO. SHERIFF
DEPT. TIME ESTIMATED.The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 8:16 PM EST | Tornado Warning | IND | Daviess, Knox | 34 min |
| May 23, 9:10 PM EST | Severe Thunderstorm Warning | IND | Greene | 30 min |
| May 24, 3:44 AM EST | Severe Thunderstorm Warning | IND | Owen | 46 min |
| May 24, 4:56 AM EST | Severe Thunderstorm Warning | IND | Carroll, Clinton | 34 min |
| May 24, 2:03 PM EST | Severe Thunderstorm Warning | IND | Johnson, Shelby | 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.