Alert archive / Indiana / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 78, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Jun 30, 1990, 12:49 PM EST for Clay County, Indiana. It was in force for 41 min.
The area
The counties it named.
The facts
- Issued
- Jun 30, 1990, 12:49 PM EST (17:49 UTC)
- Expired
- Jun 30, 1990, 1:30 PM EST
- In force
- 41 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
County Clay 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 12:00Z, 5.8 hours before the alert went out and 256 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
- 1097 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 1020 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 135 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KIND 301749
SVRIND
INC021-301830-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1249 PM EST SAT JUN 30 1990
THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 130 PM EST
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN WEST CENTRAL INDIANA
...NORTHERN CLAY
AT 12 45 PM EST RADAR SHOWED A SEVERE THUNDERSTORM AT 10 MILES EAST
NORTHEAST OF TERRE HAUTE. THIS STORM WAS MOVING TOWARD THE CITY OF
BRAZIL.
PERSONS IN BRAZIL AS WELL AS THE TOWNS OF TURNER...AND HARMONY SHOULD
SEEK SHELTER IN A STROG BUILDING.
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.
WJGWhat 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, Jun 30, 11:13 AM EST, 1 hour 36 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA 1100 AM EST SAT JUN 30 1990 IN INDIANA SEVERE THUNDERSTORM WATCH NUMBER 562 IS IN EFFECT UNTIL 400 PM EST AND INCLUDES THAT PART OF INDIANA... SOUTHWEST OF A LINE FROM 15 MILES NORTHWEST OF TERRE HAUTE TO 30 MILES SOUTHEAST OF BLOOMINGTON. SOME CITIES INCLUDED ARE... TERRE HAUTE...BLOOMINGTON...EVANSVILLE... VINCENNES...JASPER AND PETERSBURG. 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. AT 11 AM EST RADAR SHOWED AN AREA OF STRONG THUNDERSTORMS ABOUT 100 MILES SOUTHEAST OF SPRINGFIELD ILLINOIS. THESE STRONG STORMS WERE MOVING SOUTHEAST AT 35 MILES AN HOUR AND WILL BE IN SULLIVAN AND KNOX COUNTIES OF SOUTHWEST INDIANA AROUND NOON. IF THREATENING CONDITIONS ARE SSIGHTED MOVE TO A SAFE PLACE AT ONCE. KOLDITZ
Special weather statement, Jun 30, 12:01 PM EST, 48 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA 1155 AM EST SAT JUN 30 1990 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 4 PM EST FOR A LARGE PART OF SOUTHWEST INDIANA. THE WATCH IS GENERALLY TO THE SOUTHWEST OF A LINE FROM 15 MILES NORTHWEST OF TERRE HAUTE TO 30 MILES SOUTHEAST OF BLOOMINGTON. SOME CITIES INCLUDED ARE... TERRE HAUTE...BLOOMINGTON...EVANSVILLE... VINCENNES...JASPER AND PETERSBURG. AT 1145 AM EST RADAR SHOWED AN AREA OF STRONG THUNDERSTORMS IN SOUTHEAST ILLINOIS. THE STORMS WERE MOVING SOUTHEAST AT 30 MILES AN HOUR AND WILL ENTER SULLIVAN AND KNOX COUNTIES OF SOUTHWEST INDIANA AT 1215 PM EST. SO FAR NO SEVERE WEATHER WAS REPORTED BY STATE POLICE IN ILLINOIS. HOWEVER...PERSONS IN SULIVAN AND KNOX COUNTIES OF SOUTHWEST INDIANA SHOULD BE ALERT FOR THE APPROACHING THUNDERSTORMS. IT THREATENING CONDITIONS ARE SIGHTED...MOVE TO A SAFE PLACE AT ONCE. KOLDITZ
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 12:40 PM EST | Severe Thunderstorm Warning | IND | Vigo | 50 min |
| Jun 30, 12:45 PM EST | Severe Thunderstorm Warning | IND | Gibson | 30 min |
| Jun 30, 2:09 PM EST | Severe Thunderstorm Warning | IND | Parke | 51 min |
| Jun 30, 4:04 PM EST | Severe Thunderstorm Warning | IND | Union | 26 min |
| Jun 30, 4:30 PM EST | Severe Thunderstorm Warning | IND | LaPorte | 45 min |
| Jun 30, 5:15 PM EST | Severe Thunderstorm Warning | IND | Marshall | 45 min |
| Jun 30, 6:07 PM EST | Severe Thunderstorm Warning | IND | Fulton | 38 min |
| Jun 30, 6:30 PM EST | Severe Thunderstorm Warning | IND | Miami | 45 min |
Nearby
Severe Thunderstorm Warnings in Indiana, 1990Every severe thunderstorm warning in 1990
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.