Alert archive / Ohio / Flash Flood Warnings in 1990
Flash Flood Warning 43, NWS Wilmington, OH
NWS Wilmington, OH issued this flash flood warning at Aug 21, 1990, 4:46 PM EDT for Butler County, Hamilton County, Warren County, Ohio. It was in force for 119 min.
The area
The counties it named.
The facts
- Issued
- Aug 21, 1990, 4:46 PM EDT (20:46 UTC)
- Expired
- Aug 21, 1990, 6:45 PM EDT
- In force
- 119 min
- Issued by
- NWS Wilmington, OH
- Area
- Whole counties
Counties Butler County, OH, Hamilton County, OH, Warren County, OH
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 64 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
- 38 J/kg
- Mixed-layer CIN
- -113 J/kg
- Mixed-layer LCL
- 635 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 102 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 KCVG 212047
FFWCVG
OHC017-061-165-212245-
BULLETIN - EBS ACTIVATION REQUESTED
SMALL STREAM AND URBAN FLOOD WARNING
NATIONAL WEATHER SERVICE CINCINNATI OH
446 PM EDT TUE AUG 21 1990
THE NATIONAL WEATHER SERVICE IN CINCINNATI HAS ISSUED A
SMALL STREAM AND URBAN FLOOD WARNING EFFECTIVE UNTIL 645 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTHWEST OHIO
...BUTLER...HAMILTON...WARREN
AT 430 PM AMERATURE RADIO OPERATORS REPORTED 2.2 INCHES OF RAIN FELL
IN 50 MINUTES IN THE MIDDLETOWN AREA OF EASTERN BUTLER COUNTY.
WATER WAS ALSO REPORTED 3 TO 4 INCHES DEEP ON ROUTE 4.
THESE THUNDERSTORMS WERE MOVING EAST AND HAVE SLOWED TO A MOVEMENT OF
15 MILES AN HOUR.
DO NOT DRIVE YOUR VERHICLE 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.
MANUELWhat 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 21, 3:43 PM EDT, 1 hour 3 minutes before
OHZ008-INZ013-KYZ005-212045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CINCINNATI OH 342 PM EDT TUE AUG 21 1990 A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR SOUTHEAST INDIANA... SOUTHWEST OHIO AND NORTHERN KENTUCKY UNTIL 9 PM EDT. AT 330 PM EDT...SHOWERS AND THUNDERSTORMS...SOME OF THEM WITH VERY HEAVY RAIN...WERE OCCURRING OVER PARTS OF SOUTHEAST INDIANA... SOUTHWEST OHIO AND NORTHERN AND CENTRAL KENTUCKY. THE SHOWERS AND THUNDERSTORMS WERE SPREAD FROM JUST NORTH OF MUNCIE INDIANA...SOUTHEAST TO NEAR LAKE CUMBERLAND KENTUCKY...IN AN AREA ABOUT 160 MILES WIDE. THEY WERE MOVING EAST AT 25 MILES AN HOUR. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING HEAVY RAIN...STRONG WINDS...SMALL HAIL AND FREQUENT LIGHTNING. STAY TUNED TO YOUR FAVORITE RADIO STATION OR NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS. < A FLOOD WATCH IS ALSO IN EFFECT FOR SOUTHWEST OHIO FOR TONIGHT. GOLDEN
The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 12:35 AM EDT | Flash Flood Warning | ILN | Greene, Montgomery | 3 hr |
| Aug 21, 3:07 AM EDT | Flash Flood Warning | ILN | Richland | 3 hr |
| Aug 21, 7:15 PM EDT | Flash Flood Warning | ILN | Darke | 3 hr |
Nearby
Flash Flood Warnings in Ohio, 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.