Alert archive / Indiana / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 127, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 19, 1998, 9:26 AM EST for 4 counties in Indiana. It was in force for 49 min. 2 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
- Jul 19, 1998, 9:26 AM EST (14:26 UTC)
- Expired
- Jul 19, 1998, 10:15 AM EST
- In force
- 49 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
Counties Hancock County, IN, Henry County, IN, Madison County, IN, Marion County, IN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 19, 9:40 AM EST | Hail 0.75 | Oaklandon, IN | Reported by TV meteorologist. |
| Jul 19, 9:50 AM EST | Hail 1.75 | Beech Grove, IN |
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 nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 2.4 hours before the alert went out and 176 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
- 585 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 950 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KIND 191427 SVRIND INC059-065-095-097-191510- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE INDIANAPOLIS IN 926 AM EST SUN JUL 19 1998 THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... HANCOCK COUNTY IN CENTRAL INDIANA HENRY COUNTY IN EAST CENTRAL INDIANA SOUTHEASTERN MADISON COUNTY IN CENTRAL INDIANA MARION COUNTY IN CENTRAL INDIANA * UNTIL 1015 AM EST * AT 922 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM NEAR ANDERSON TO NEAR SPEEDWAY... MOVING SOUTHEAST AT 40 MPH. * AT 919 AM EST...A SPOTTER IN HAMILTON COUNTY REPORTED 70 TO 80 MPH WINDS. P * THE SEVERE THUNDERSTORM WILL BE NEAR... INDIANAPOLIS GREENFIELD ANDERSON NEW CASTLE DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS! EDDY &
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, Jul 19, 3:45 AM EST, 5 hours 41 minutes before
INZ003>009-012>018-020>075-080>082-085>088-192030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 345 AM EST SUN JUL 19 1998 ...EXCESSIVE HEAT LIKELY THIS COMING WEEK... A LARGE DOME OF HOT AIR OVER THE CENTER OF THE NATION WILL BE BUILDING EASTWARD INTO INDIANA TODAY AND SHOULD STAGNATE OVER THE STATE WELL INTO THE WORKWEEK. THIS WILL CAUSE DRY...HOT AND HUMID CONDITIONS. HIGH TEMPERATURES ARE FORECAST TO BE IN THE 90S ACROSS THE STATE MONDAY THROUGH THURSDAY. THESE HOT TEMPERATURES...COUPLED WITH HIGH HUMIDITIES WILL LIKELY YIELD DAYTIME HEAT INDICES AT OR ABOVE 105 DEGREES OVER MUCH OF INDIANA. OVERNIGHT LOW TEMPERATURES ARE EXPECTED TO BE IN THE 70S ACROSS THE STATE MONDAY THROUGH THURSDAY...SO LITTLE RELIEF FROM THE HEAT AND HUMIDITY WILL BE FELT EVEN AT NIGHT. THE HEAT INDEX IS A MEASURE OF THE COMBINED EFFECT OF TEMPERATURE AND HUMIDITY. WITH HEAT INDICES ABOVE 105 DEGREES...YOUR BODY HAS A HARD TIMING COOLING ITSELF...POSSIBLY LEADING TO HEAT EXHAUSTION OR HEAT STROKE. REDUCED OUTDOOR ACTIVITY AND LIGHTWEIGHT CLOTHING IS RECOMMENDED. ALSO TRY AND STAY OUT OF THE SUN AS MUCH AS POSSIBLE AND DRINK PLENTY OF WATER. ENSURE AIR CONDITIONING AND/OR XFANS ARE WORKING PROPERLY AND BE SURE TO CHECK ON THE ELDERLY. LONG RANGE COMPUTER MODELS SUGGEST SOME RELIEF IN THE HEAT MAY COME AFTER MIDWEEK...AT LEAST ACROSS THE NORTH HALF OF THE STATE. TUCEK
Special weather statement, Jul 19, 4:15 AM EST, 5 hours 11 minutes before
INZ021-028>031-035>049-051>057-060>065-067>072-191500- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE INDIANAPOLIS IN 415 AM EST SUN JUL 19 1998 SEVERE THUNDERSTORMS ARE POSSIBLE OVER CENTRAL INDIANA TODAY AND TONIGHT. THERE IS A VERY SLIGHT THREAT THIS MORNING AND A BETTER THREAT LATE THIS AFTERNOON AND EVENING. THE AREA THREATENED IS MAINLY NEAR AND NORTH OF INTERSTATE 74. THE PRIMARY CONCERN IS DOWNBURST WIND DAMAGE FROM ISOLATED STORMS AND/OR BOW ECHO SQUALL LINE DEVELOPMENT. THIS MORNING WILL FEATURE A DYING CLUSTER OF STORMS MOVING SOUTHEAST OUT OF CHICAGO. NEW STORMS ARE EXPECTED TO FIRE ALONG THIS CLUSTERS WIND OUTFLOW BOUNDARY THIS AFTERNOON. THESE STORMS WOULD THEN TRACK SOUTHEAST. SPOTTER ACTIVATION IS POSSIBLE THIS MORNING BUT MORE LIKELY AFTER 3 PM THIS AFTERNOON. TUCEK
Special weather statement, Jul 19, 6:05 AM EST, 3 hours 21 minutes before
INZ021-028>031-035>049-051>057-060>065-067>072-211200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE INDIANAPOLIS IN 605 AM EST SUN JUL 19 1998 SEVERE THUNDERSTORMS ARE POSSIBLE OVER CENTRAL INDIANA THIS MORNING. THE THREAT AREA IS FROM THE SOUTH SIDE OF INDIANAPOLIS AND THE MARTINSVILLE AREA SOUTHEAST TO COLUMBUS...GREENSBURG AND NORTH VERNON. THE PRIMARY SEVERE WEATHER CONCERN IS DAMAGING WINDS FLASH FLOODING. SPOTTER ACTIVATION IS POSSIBLE BUT NOT PLANNED. TUCEK
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 5:55 PM EST | Severe Thunderstorm Warning | IND | Montgomery, Tippecanoe | 35 min |
| Jul 19, 6:18 PM EST | Tornado Warning | IND | Boone | 32 min |
| Jul 19, 6:28 PM EST | Severe Thunderstorm Warning | IND | Clinton, Tipton | 62 min |
| Jul 19, 6:49 PM EST | Severe Thunderstorm Warning | IND | Howard | 21 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.