Alert archive / Indiana / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 122, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Aug 5, 1989, 5:33 AM EST for Delaware County, Randolph County, Indiana. It was in force for 27 min.
The area
The counties it named.
The facts
- Issued
- Aug 5, 1989, 5:33 AM EST (10:33 UTC)
- Expired
- Aug 5, 1989, 6:00 AM EST
- In force
- 27 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
Counties Delaware County, IN, Randolph County, IN
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Dayton/James M C, OH (KDAY), launched 00:00Z, 10.6 hours before the alert went out and 91 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
- 2892 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 906 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 131 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 6.7
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Aug 5, 1:33 AM EST, 4 hours before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA 130 AM EST SAT AUG 5 1989 IN INDIANA SEVERE THUNDERSTORM WATCH NUMBER 661 IS IN EFFECT UNTIL 700 AM EST AND INCLUDES THAT PART OF INDIANA... NORTH OF A LINE FROM FRANKFORT IN CLINTON COUNTY TO PORTLAND IN JAY COUNTY AND EAST OF A LINE FROM FRANKFORT IN CLINTON COUNTY TO MICHIGAN CITY IN LA PORTE COUNTY. SOME CITIES INCLUDED ARE... LA PORTE...SOUTH BEND...ELKHART...FORT WAYNE...LOGANSPORTE...KOKOMO AND MARION. REMEMBER...A WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR SEVERE WEATHER IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Aug 5, 3:37 AM EST, 1 hour 56 minutes before
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</html>Special weather statement, Aug 5, 4:10 AM EST, 1 hour 23 minutes before
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The site you requested is temporarily down for maintenance or an unexpected outage.
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</html>The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 1:12 AM EST | Tornado Warning | IND | LaPorte | 33 min |
| Aug 5, 1:38 AM EST | Tornado Warning | IND | Saint Joseph | 37 min |
| Aug 5, 2:10 PM EST | Severe Thunderstorm Warning | IND | Marion | 35 min |
| Aug 5, 5:44 PM EST | Severe Thunderstorm Warning | IND | Lawrence | 46 min |
| Aug 5, 6:39 PM EST | Severe Thunderstorm Warning | IND | Jackson | 21 min |
| Aug 5, 6:46 PM EST | Severe Thunderstorm Warning | IND | Brown, Monroe | 44 min |
Nearby
Severe Thunderstorm Warnings in Indiana, 1989Every severe thunderstorm warning in 1989
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.