Alert archive / Indiana / Flash Flood Warnings in 1990
Flash Flood Warning 51, NWS Indianapolis, IN
NWS Indianapolis, IN issued this flash flood warning at Aug 20, 1990, 3:46 PM EST for Howard County, Indiana. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Aug 20, 1990, 3:46 PM EST (20:46 UTC)
- Expired
- Aug 20, 1990, 6:45 PM EST
- In force
- 3 hr
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
County Howard 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, 8.8 hours before the alert went out and 175 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 202050
FFWIND
INC067-202345-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
346 PM EST MON AUG 20 1990
THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 645 PM EST
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN CENTRAL INDIANA
...HOWARD
AN AMATEUR RADIO OPERATOR IN INDIAN HEIGHTS...JUST SOUTHEAST OF
KOKOMO...REPORTED THAT STREETS WERE FLOODING THERE AND AT OTHER
LOCATIONS NEARBY. HE REPORTS THAT ABOUT THREE INCHES OF RAIN HAVE
FALLEN SINCE 215 PM EST. NATIONAL WEATHER SERVICE RADAR INDICATES MORE
HEAVY RAIN IS ON THE WAY.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY . THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY. MOVE TO HIGHER GROUND.
MPDWhat forecasters said that day
The local office's own words before this flash flood 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, 1 hour 56 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, 1 hour 56 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
Special weather statement, Aug 20, 3:37 PM EST, 9 minutes before
INZALL-202135- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA 335 PM EST MON AUG 20 1990 AS OF 330 PM EST THERE WERE NO SEVERE THUNDERSTORM WARNINGS IN EFFECT FOR CENTRAL INDIANA...HOWEVER... AT 330 PM EST WEATHER RADAR SHOWED THUNDERSTORMS WERE STILL SCATTERED ACROSS CENTRAL INDIANA...ANY OF WHICH COULD PRODUCE GUSTY WINDS...VERY HEAVY RAIN AND DANGEROUS LIGHTNING. THE STRONGEST THUNDERSTORMS WERE FROM ABOUT 5 MILES NORTH OF LAFAYETTE SOUTHEAST THROUGH THE FLORA AND FRANKFORT AREAS AND THEN TO ELWOOD AND ALEXANDRIA. AT 330 PM EST AN AMATEUR RADIO OPERATOR REPORTED MARBLE SIZE HAIL IN ALEXANDRIA...40 MILES NORTHEAST OF INDIANAPOLIS. OTHER VERY STRONG THUNDERSTORMS WERE OVER EXTREME EASTERN INDIANA NEAR RICHMOND. . A VERY STRONG THUNDERSTORM WAS ALSO OVER NORTHWEST JACKSON COUNTY... ABOUT 50 MILES SOUTH OF INDIANAPOLIS. THUNDERSTORMS WERE MOVING EAST AT ABOUT 20 MILES AN HOUR. PRICE
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, 2:26 PM EST | Severe Thunderstorm Warning | IND | Madison, Tipton | 34 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, 5:31 PM EST | Tornado Warning | IND | Warrick | 29 min |
| Aug 20, 6:56 PM EST | Severe Thunderstorm Warning | IND | Randolph | 64 min |
Nearby
Flash Flood Warnings in Indiana, 1990Every flash flood 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.