Alert archive / Indiana / Flash Flood Warnings in 1990
Flash Flood Warning 47, NWS Indianapolis, IN
NWS Indianapolis, IN issued this flash flood warning at Aug 17, 1990, 10:12 PM CDT for LaPorte County, Indiana. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Aug 17, 1990, 10:12 PM CDT (03:12 UTC)
- Expired
- Aug 18, 1990, 2:15 AM CDT
- In force
- 4 hr
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
County LaPorte 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, 3.2 hours before the alert went out and 282 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
- 82 J/kg
- Mixed-layer CIN
- -94 J/kg
- Mixed-layer LCL
- 1144 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 43 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 KSBN 180313
FFWSBN
INC091-180715-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SOUTH BEND IN
1012 PM EST (1012 PM CDT) FRI AUG 17 1990
THE NATIONAL WEATHER SERVICE IN SOUTH BEND HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 215 AM EST (215 AM CDT)
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN NORTH CENTRAL INDIANA
...LAPORTE
AS OF 10 PM EST/CDT...UP TO 4 INCHES OF RAIN HAS FALLEN THIS EVENING
IN THE LAPORTE AND KINGSBURY INDIANA AREAS...18 MILES WEST SOUTHWEST
OF SOUTH BEND.
RADAR CONTINUES TO INDICATE THUNDERSTORMS MOVING THROUGH THIS AREA AND
ADDITIONAL HEAVY RAINFALL IS LIKELY TONIGHT.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHEREM 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.What 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 17, 9:51 PM CDT, 21 minutes before
INZ006-010-180345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA 945 PM EST FRI AUG 18 1990 AT 940 PM EST...A VERY STRONG THUNDERSTORM WAS ALONG INTERSTATE 69 AT MARION IN NORTHEST INDIANA. JUST BEFORE 9PM EST...THE PERU STATE POLICE POST REPORTED BLINDING RAIN ...MARBLE SIZE HAIL AND WINDS ESTIMATED AT 30 MILES AN HOUR AND SMALL TREE LIMBS DOWN AS THE STORM MOVED THROUGH SOUTHERN WABASH COUNTY. THE STORM WAS MOVING SOUTHEAST AT 35 MILES AN HOUR AND WILL MOVE THROUGH SOUTHEAST GRANT AND SOUTHWEST BLACKFORD COUNTIES AND INTO NORTHCENTRAL DELAWARE COUNTY NEAR WHEELING AND EATON OR ABOUT 10 MILES NORTH OF MUNCIE BY 1015 PM EST. PERSON IN NORTHERN DELAWARE COUNT4Y SHOULD WATCH FOR THIS STORM AND BE PREPARED TO TAKE SHELTER IF THREATENING WEATHER IS SIGHTED. REPORT SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT AGENCTY FOR RELAY TO THE NATIONAL WEATHER SERVICE. CT
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 6:30 AM CDT | Flash Flood Warning | IND | Miami | 3 hr |
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.