Alert archive / Indiana / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 111, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Aug 20, 1990, 2:26 PM EST for Madison County, Tipton County, Indiana. It was in force for 34 min.
The area
The counties it named.
The facts
- Issued
- Aug 20, 1990, 2:26 PM EST (19:26 UTC)
- Expired
- Aug 20, 1990, 3:00 PM EST
- In force
- 34 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
Counties Madison County, IN, Tipton 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, 7.4 hours before the alert went out and 148 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
- 238 J/kg
- Mixed-layer CIN
- -146 J/kg
- Mixed-layer LCL
- 672 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 73 m²/s²
- 0-3 km storm-relative helicity
- 88 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 201929
SVRIND
INC095-159-202000-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
226 PM EST MON AUG 20 1990
THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 300 PM EST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN CENTRAL INDIANA
...NORTHERN MADISON...EASTERN TIPTON
AT 225 PM EST RADAR INDICATED A SEVERE THUNDERSTORMS ABOUT 12 MILES
SOUTHEAST OF KOKOMO MOVING NORTHEAST AT 20 MPH. SOME CITIES IN THE
PATH OF THIS STORM ARE ELWOOD AND SUMMITVILLE.
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.
HENDRICKSONWhat 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 20, 1:50 PM EST, 36 minutes before
INZ009-010-202000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA 148 PM EST MON AUG 20 1990 AT 135 PM EST GREENWOOD CITY POLICE REPORTED SEVERAL POWER LINES HAVE BEEN BLOWN DOWN AND SEVERAL TREE LIMBS HAVE BEEN BLOWN DOWN ABOUT 15 MILES SOUTH SOUTHEAST OF DOWNTOWN INDIANAPOIS. THIS THUNDERSTORM WAS MOVING EAST AT 20 MPH AND WILL MOVE INTO NORTHERN SHELBY AND SOUTHERN HANCOCK COUNTIES BY 200 PM EST. PERSONS ON THE SOUTHEAST AND EAST SIDE OF INDIANAPOIS AND ALSO TO NORTH OF SHELBYVILLE SHOULD BE PREPARED FOR STRONG GUSTY WINDS AND VERY HEAVY RAINS AS THESE STORMS MOVE THROUGH. HENDRICKSON STORMS WILL MOVE OVER CAYUGA...30 MILES NORTH OF TERRE HAUTE..NEAR 120 AM^ AND WILL BE NEAR VEEDERSBURG...40 MILES NORTHEAST OF TERRE HAUTE...BY 200 AM EST. JRD
Special weather statement, Aug 20, 1:50 PM EST, 36 minutes before
INZ009-010-202000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA 148 PM EST MON AUG 20 1990 AT 135 PM EST GREENWOOD CITY POLICE REPORTED SEVERAL POWER LINES HAVE BEEN BLOWN DOWN AND SEVERAL TREE LIMBS HAVE BEEN BLOWN DOWN ABOUT 15 MILES SOUTH SOUTHEAST OF DOWNTOWN INDIANAPOIS. THIS THUNDERSTORM WAS MOVING EAST AT 20 MPH AND WILL MOVE INTO NORTHERN SHELBY AND SOUTHERN HANCOCK COUNTIES BY 200 PM EST. PERSONS ON THE_ SOUTHEAST AND EAST SIDE OF INDIANAPOIS AND ALSO TO NORTH OF SHELBYVILLE SHOULD BE PREPARED FOR STRONG GUSTY WINDS AND VERY HEAVY RAINS AS THESE STORMS MOVE THROUGH. HENDRICKSON
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 8:02 PM EST | Severe Thunderstorm Warning | IND | Delaware, Henry | 28 min |
| Aug 19, 8:29 PM EST | Severe Thunderstorm Warning | IND | Henry | 31 min |
| Aug 19, 8:50 PM EST | Flash Flood Warning | IND | Hancock | 3 hr |
| Aug 19, 9:16 PM EST | Severe Thunderstorm Warning | IND | Fayette | 44 min |
| Aug 20, 1:59 PM EST | Severe Thunderstorm Warning | IND | Hancock, Shelby | 31 min |
| Aug 20, 2:36 PM EST | Severe Thunderstorm Warning | IND | Henry, Rush | 39 min |
| Aug 20, 3:38 PM EST | Flash Flood Warning | IND | Madison | 82 min |
| Aug 20, 3:46 PM EST | Flash Flood Warning | IND | Howard | 3 hr |
| Aug 20, 5:31 PM EST | Tornado Warning | IND | Warrick | 29 min |
| Aug 20, 6:56 PM EST | Severe Thunderstorm Warning | IND | Randolph | 64 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.