Alert archive / Ohio / Flash Flood Warnings in 1990
Flash Flood Warning 42, NWS Wilmington, OH
NWS Wilmington, OH issued this flash flood warning at Aug 21, 1990, 3:07 AM EDT for Richland County, Ohio. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Aug 21, 1990, 3:07 AM EDT (07:07 UTC)
- Expired
- Aug 21, 1990, 6:15 AM EDT
- In force
- 3 hr
- Issued by
- NWS Wilmington, OH
- Area
- Whole counties
County Richland 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 00:00Z, 7.1 hours before the alert went out and 171 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
- 58 J/kg
- Mixed-layer CIN
- -161 J/kg
- Mixed-layer LCL
- 1115 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 28 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KCLE 210709
FFWMFD
OHC139-211015-
BULLETIN - EBS ACTIVATION REQUESTED
SMALL STREAM AND URBAN FLOOD WARNING
NATIONAL WEATHER SERVICE MANSFIELD OH
ISSUED BY CLEVELAND OH
307 AM EDT TUE AUG 21 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A
SMALL STREAM AND URBAN FLOOD WARNING EFFECTIVE UNTIL 615 AM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN NORTH CENTRAL OHIO
...RICHLAND
THUNDERSTORMS HAVE PRODUCED HEAVY RAIN DURING THE PAST HOUR AND
WILL LIKELY CONTINUE FOR ANOTHER HOUR OR SO IN RICHLAND COUNTY.
SOME LOW LYING AREAS ARE ALREADY FLOODED AND RUNOFF WILL CONTINUE TO
PRODUCE LOCALIZED FLOODING FOR THE NEXT FEW HOURS.
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.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE
ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.
HEATHFIELDWhat 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, 11:14 PM EDT, 3 hours 53 minutes before
OHZ008-INZ013-KYZ005-210445- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CINCINNATI OH 1110 PM EDT MON AUG 20 1990 THUNDERSTORMS WITH VERY HEAVY RAIN...GUSTY WINDS AND FREQUENT LIGHTNING IN SOUTHEAST INDIANA WERE MOVING INTO THE GREATER CINCINNATI AND NORTHERN KENTUCKY AT 1107 PM EDT. AT 1109 PM EDT WEATHER SERVICE RADAR SHOWED THUNDERSTORMS WERE OCCURRING IN DEARBORN COUNTY INDIANA...ABOUT 18 MILES WEST OF CINCINNATI. AS STORMS MOVE BACK IN THE GREATER CINCINNATI AREA OF...OHIO AND SWITZERLAND COUNTIES OF INDIANA...BUTLER AND HAMILTON COUNTIES OF OHIO AND BOONE...KENTON AND GRANT COUNTIES OF KENTUCKY PEOPLE CAN EXPECT WIND GUST TO 40 MILES AN HOUR...RAINFALL THAT WILL REDUCE VISIBILITIES TO NEAR ZERO AND SEVERAL LIGHTNING STRIKES CAUSING POSSIBLE POWER OUTAGE FROM 1120 PM UNTIL AFTE MIDNIGHT. SAM
Special weather statement, Aug 20, 11:28 PM EDT, 3 hours 39 minutes before
OHZ005-010-210425- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DAYTON OH 1125 PM EDT MON AUG 20 1990 THUNDERSTORMS WITH HEAVY RAIN AND GUSTY WINDS MOVING ACROSS WESTERN OHIO AT 1120 PM EDT. AT 1120 PM WEATHER SERVICE RADAR SHOWED SHOWERS AND THUNDERSTORMS FROM SOUTH OF LIMA OHIO TO DAYTON JUST WEST OF CICINNATI OHIO. THESE SHOWERS AND THUNDERSTORMS ALSO EXTENDED WESTWARD AS FAR AS MUNCIE AND COLUMBUS INDIANA. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 25 MPH. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING HEAVY RAIN...GUSTY WINDS AND POSSIBLE SMALL HAIL. SOME PONDING OF WATER MAY OCCUR WITH THE HEAVY RAIN ESPECIALLY IN LOW LYING AREAS. PADGETT
Special weather statement, Aug 20, 11:34 PM EDT, 3 hours 33 minutes before
OHZ005-010-210425- SPECIAL WEATHER STATEMENT...CORRECTION NATIONAL WEATHER SERVICE DAYTON OH 1130 PM EDT MON AUG 20 1990 THUNDERSTORMS WITH HEAVY RAIN AND GUSTY WINDS WERE MOVING ACROSS WESTERN OHIO AT 1120 PM EDT. AT 1120 PM WEATHER SERVICE RADAR SHOWED SHOWERS AND THUNDERSTORMS FROM SOUTH OF LIMA OHIO TO DAYTON TO JUST WEST OF CICINNATI OHIO. THESE SHOWERS AND THUNDERSTORMS ALSO EXTENDED WESTWARD AS FAR AS MUNCIE AND COLUMBUS INDIANA. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 25 MPH. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING HEAVY RAIN...GUSTY WINDS AND POSSIBLE SMALL HAIL. SOME PONDING OF WATER MAY OCCUR WITH THE HEAVY RAIN ESPECIALLY IN LOW LYING AREAS. PADGETT ...CORRECTED WORDING...
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, 4:46 PM EDT | Flash Flood Warning | ILN | Butler, Hamilton, Warren | 119 min |
| 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.