Alert archive / Ohio / Flash Flood Warnings in 1990
Flash Flood Warning 18, NWS Wilmington, OH
NWS Wilmington, OH issued this flash flood warning at Jul 9, 1990, 6:14 PM EDT for Clark County, Greene County, Ohio. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Jul 9, 1990, 6:14 PM EDT (22:14 UTC)
- Expired
- Jul 9, 1990, 8:15 PM EDT
- In force
- 2 hr
- Issued by
- NWS Wilmington, OH
- Area
- Whole counties
Counties Clark County, OH, Greene 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, 10.2 hours before the alert went out and 33 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
- 1078 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 1196 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 89 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDAY 092220 COR
FFWDAY
OHC023-057-100015-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
URBAN AND SMALL STREAM FLOOD WARNING...CORRECTED
NATIONAL WEATHER SERVICE DAYTON OH
614 PM EDT MON JUL 9 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A URBAN AND SMALL
STREAM FLOOD WARNING EFFECTIVE UNTIL 815 PM EDT FOR PEOPLE IN
THE FOLLOWING COUNTIES
IN THE STATE OF OHIO
CLARK...GREENE
AT 611 PM EDT THERE WERE REPORTS OF MINOR STREET FLOODING
IN THE CITY OF FAIRBORN IN NORTHWEST GREENE COUNTY OHIO.
THERE WERE THUNDERSTORMS WITH VERY HEAVY RAIN ACROSS BOTH
GREENE AND CLARK COUNTIES.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY.
THE WATER DEPTH MAY BE TOO GREATq TO ALLOW YOUR CAR TO CROSS SAFELY.
VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED IMMEDIATELY.
MOVE TO HIGHER GROUND.
LINDSEY
$$
CORRECTED FOR SPELLING IN BASIS FOR WARNINGWhat 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, Jul 9, 2:10 PM EDT, 4 hours 4 minutes before
OHZ006-007-009-011-091900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBUS OH 210 PM EDT MON JUL 9 1990 A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF CENTRAL OHIO UNTIL 9 PM EDT. AT 205 PM NATIONAL WEATHER SERVICE RADAR SHOWED A LINE OF THUNDERSTORMS EXTENDING FROM 40 MILES NORTH OF WHEELING WEST VIRGINIA SOUTHWEST TO 30 MILES NORTHEAST OF DAYTON. THESE THUNDERSTORMS WERE MOVING SOUTHEAST AT 30 MPH AND WILL REACH THE COLUMBUS AREA BY 300 PM. THE THUNDERSTORMS WERE PRODUCING HEAVY RAIN AND STRONG GUSTY WINDS. PEOPLE ACROSS CENTRAL OHIO SHOULD KEEP ABREAST OF THE LATEST WEATHER CONDITIONS BY LISTENING TO NOAA WEATHER RADIO... OR YOUR LOCAL RADIO OR TV STATIONS FOR STATEMENTS AND WARNINGS. SMITH
Special weather statement, Jul 9, 3:17 PM EDT, 2 hours 57 minutes before
OHZ005-010-092015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DAYTON OH 317 PM EDT MON JUL 9 1990 THUNDERSTORMS WITH VERY HEAVY RAIN...GUSTY WINDS AND SMALL HAIL WERE ACROSS DARKE...MIAMI...AND CHAMPAIGN COUNTIES IN WESTERN OHIO AT 315 PM EDT. NATIONAL WEATHER SERVICE RADAR SHOWED A LINE OF THUNDERSTORMS ACROSS WESTERN OHIO BETWEEN GREENVILLE IN DARKE COUNTY AND COLUMBUS. THE LINE OF THUNDERSTORMS WAS DRIFTING SOUTH AT AROUND 15 MPH. PEOPLE IN PREBLE...MONTGOMERY...CLARK...AND GREENE COUNTIES IN WESTERN OHIO CAN EXPECT THESE THUNDERSTORMS TO SPREAD INTO THEIR COUNTIES BETWEEN 320 AND 400 PM EDT. A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 900 PM EDT FOR ALL OF THE MIAMI )VALLEY AND WEST CENTRAL OHIO COUNTIES. < LINDSEY
The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 12:35 PM EDT | Severe Thunderstorm Warning | ILN | Richland | 55 min |
| Jul 9, 12:50 PM EDT | Severe Thunderstorm Warning | ILN | Ashland | 40 min |
| Jul 9, 1:19 PM EDT | Severe Thunderstorm Warning | ILN | Mercer | 56 min |
| Jul 9, 1:53 PM EDT | Severe Thunderstorm Warning | ILN | Auglaize | 67 min |
| Jul 9, 2:13 PM EDT | Severe Thunderstorm Warning | ILN | Darke, Shelby | 62 min |
| Jul 9, 3:46 PM EDT | Severe Thunderstorm Warning | ILN | Greene, Montgomery | 59 min |
| Jul 9, 4:43 PM EDT | Severe Thunderstorm Warning | ILN | Greene | 32 min |
| Jul 9, 4:49 PM EDT | Severe Thunderstorm Warning | ILN | Clinton, Warren | 56 min |
| Jul 9, 5:44 PM EDT | Severe Thunderstorm Warning | ILN | Greene | 61 min |
| Jul 9, 5:45 PM EDT | Severe Thunderstorm Warning | ILN | Crawford, Richland | 60 min |
| Jul 9, 5:54 PM EDT | Severe Thunderstorm Warning | ILN | Montgomery | 66 min |
| Jul 9, 6:07 PM EDT | Severe Thunderstorm Warning | ILN | Clark | 68 min |
| Jul 9, 6:24 PM EDT | Severe Thunderstorm Warning | ILN | Preble | 66 min |
| Jul 9, 6:56 PM EDT | Severe Thunderstorm Warning | ILN | Montgomery | 34 min |
| Jul 9, 7:24 PM EDT | Severe Thunderstorm Warning | ILN | Warren | 66 min |
| Jul 9, 7:25 PM EDT | Severe Thunderstorm Warning | ILN | Greene | 35 min |
| Jul 9, 7:35 PM EDT | Severe Thunderstorm Warning | ILN | Clinton | 55 min |
| Jul 9, 7:35 PM EDT | Tornado Warning | ILN | Knox | 60 min |
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.