Alert archive / Ohio / Flash Flood Warnings in 1992
Flash Flood Warning 29, NWS Wilmington, OH
NWS Wilmington, OH issued this flash flood warning at Jul 30, 1992, 6:45 PM EDT for Miami County, Ohio. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 30, 1992, 6:45 PM EDT (22:45 UTC)
- Expired
- Jul 30, 1992, 9:30 PM EDT
- In force
- 3 hr
- Issued by
- NWS Wilmington, OH
- Area
- Whole counties
County Miami County, OH
The nearest sounding before it
Dayton/James M C, OH (KDAY), launched 12:00Z, 10.8 hours before the alert went out and 17 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
- 275 J/kg
- Mixed-layer CIN
- -70 J/kg
- Mixed-layer LCL
- 1037 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 106 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KDAY 302247 FFWDAY OHC109-310130- BULLETIN FLOOD WARNING NATIONAL WEATHER SERVICE DAYTON OH 645 PM EDT THU JUL 30 1992 THE NATIONAL WEATHER SERVICE IN DAYTON HAS ISSUED A FLOOD WARNING EFFECTIVE UNTIL 930 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...... IN WEST CENTRAL OHIO ...MIAMI COUNTY SMALL STREAM FLOODING IS LIKELY THIS EVENING AND EARLY TONIGHT ACROSS THE NORTHERN HALF OF MIAMI COUNTY OHIO. AT 640 PM NATIONAL WEATHER SERVICE RADAR SHOWED THUNDERSTORMS WITH VERY HEAVY RAIN MOVING INTO THE NORTHWEST PART OF MIAMI COUNTY. THESE SAME THUNDERSTORMS HAD PRODUCED AN INCH AND A HALF TO TWO AND A HALF INCHES OF RAIN ACROSS CENTRAL DARKE COUNTY BETWEEN 550 AND 640 PM. AT 635 PM THERE WERE REPORTS OF STREET FLOODING IN GREENVILLE AND UNIOCITY. 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 BER ABANDONED QUICKLY. MOVE TO HIGHER GROUND. LINDSEY
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, Jul 30, 6:37 PM EDT, 8 minutes before
OHZ006-007-009-011-310045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBUS OH 636 PM EDT THU JUL 30 1992 A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR ALL OF CENTRAL OHIO THROUGH 10 PM EDT. A FLOOD WATCH IS ALSO IN EFFECT FOR ALL OF CENTRAL OHIO FOR TONIGHT AND FRIDAY. AT 635 PM NATIONAL WEATHER SERVICE RADAR INDICATED A LARGE AREA OF SHOWERS AND THUNDERSTORMS COVERING MOST OF NORTHERN AND WESTERN OHIO. ALL THE PRECIPITATION WAS MOVING NORTHEAST AT 30 MILES AN HOUR AND WILL MOVE INTO CENTRAL OHIO BY 7 PM AND INTO THE COLUMBUS METROPOLITAN AREA BY 8 PM. THESE SHOWERS AND THUNDERSTORMS PRODUCED RAINFALL AMOUNTS OF 1 TO 2 INCHES OVER EASTCENTRAL INDIANA AND WESTCENTRAL OHIO BETWEEN 4 AND 6 PM. NUMEROUS REPORTS OF FLOODING HAVE ALSO BEEN REPORTED WITH THESE STORMS. ALL THE STORMS MOVING INTO CENTRAL OHIO HAVE THE POTENTIAL TO PRODUCE DAMAGING WINDS...LARGE HAIL...FREQUENT LIGHTNING AND TORRENTIAL DOWNPOURS. THE GROUND REMAINS SATURATED OVER MOST OF CENTRAL OHIO AND THE ADDITIONAL RAINFALL WILL CAUSE PONDING OF WATER ON ROADWAYS AND STANDING WATER IN LOW LYING AREAS. PEOPLE THROUGHOUT CENTRAL OHIO SHOULD BE PREPARED TO ACT QUICKLY AND MOVE TOB HIGHER GROUND IF FLOODING IS OBSERVED OR A WARNING IS ISSUED. LISTEN TO NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION. SMITH
The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 8:40 PM EDT | Flash Flood Warning | ILN | Hamilton | 2 hr |
| Jul 29, 9:59 PM EDT | Flash Flood Warning | ILN | Hamilton | 61 min |
| Jul 30, 3:18 PM EDT | Severe Thunderstorm Warning | ILN | Crawford | 42 min |
| Jul 30, 3:46 PM EDT | Severe Thunderstorm Warning | ILN | Richland | 44 min |
| Jul 30, 4:31 PM EDT | Severe Thunderstorm Warning | ILN | Ashland, Richland | 59 min |
| Jul 30, 4:55 PM EDT | Severe Thunderstorm Warning | ILN | Crawford | 65 min |
| Jul 30, 4:56 PM EDT | Flash Flood Warning | ILN | Mercer | 3 hr |
| Jul 30, 5:42 PM EDT | Flash Flood Warning | ILN | Auglaize | 3 hr |
| Jul 30, 5:52 PM EDT | Flash Flood Warning | ILN | Darke | 3 hr |
Nearby
Flash Flood Warnings in Ohio, 1992Every flash flood warning in 1992
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.