Alert archive / Ohio / Flash Flood Warnings in 1998
Flash Flood Warning 41, NWS Wilmington, OH
NWS Wilmington, OH issued this flash flood warning at May 7, 1998, 10:07 PM EDT for Clark County, Ohio. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 7, 1998, 10:07 PM EDT (02:07 UTC)
- Expired
- May 8, 1998, 1:15 AM EDT
- In force
- 3 hr
- Issued by
- NWS Wilmington, OH
- Area
- Whole counties
County Clark County, OH
The radar
The Cincinnati radar (KILN), 55 km from the middle of the area, began a volume at 02:07 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 2.1 hours before the alert went out and 54 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
- 224 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 556 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 190 m²/s²
- 0-3 km storm-relative helicity
- 202 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KILN 080209 FFWILN OHC023-080510- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE WILMINGTON OH 1007 PM EDT THU MAY 7 1998 THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A * FLASH FLOOD WARNING FOR... CLARK COUNTY IN WEST CENTRAL OHIO. * EFFECTIVE UNTIL 115 AM EDT. * HEAVY RAINS CONTINUE TO FALL ACROSS CLARK COUNTY. DOPPLER RADAR ESTIMATES INDICATE THREE AND A HALF INCHES OF RAIN HAVE FALLEN SINCE 6 PM ACROSS MUCH OF CENTRAL AND NORTHERN CLARK COUNTY. * LOCAL LAW ENFORCEMENT OFFICIALS REPORT NUMEROUS FLOODING PROBLEMS ACROSS CENTRAL CLARK COUNTY AND THIS WILL ONLY WORSEN WITH ADDITIONAL RAINFALL. 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. LOTT
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.
NWS Wilmington, OH wrote its last area forecast discussion before this flash flood warning went out at May 7, 9:45 PM EDT, 22 minutes earlier.
Area forecast discussion, May 7, 9:45 PM EDT, 22 minutes before
FORECAST COORDINATION MESSAGE NATIONAL WEATHER SERVICE WILMINGTON OH 945 PM EDT THU MAY 7 1998 LTST SFC ANLYS SHWG LOW STILL OVR CNTL IND WITH WRM FNT XTNDG E ACRS CNTRL OH. GOOD LLVL DIR SHEAR ALG BNDRY HELPING TO PRODUCE ROTATING STRMS. REMNANTS OF ERLYR GREENE CNTY STORM HAS WKND BUT STILL PRDCG PRETTY GUD RAIN. PCPN HAS BEEN PINWHEELING OVR CLARK CNTY WITH 3 HR TOTALS OF ARND 2 INCHS NEAR SPRINGFIELD. WL HAV TO KEEP AN EYE ON THINGS THERE. PDS OF RAIN TO CONT ELSEWHR ACRS FA OVRNGT AND CRNT FCST IN PRETTY GOOD SHAPE. LOTT
In the hours before
Special weather statement, May 7, 9:13 PM EDT, 54 minutes before
OHZ062-080125- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 913 PM EDT THU MAY 7 1998 ...THE TORNADO WARNING FOR GREENE COUNTY HAS EXPIRED... THE THUNDERSTORM THAT PRODUCED THE TORNADO IN GREENE COUNTY HAS WEEKEND AND MOVED OUT OF GREENE COUNTY. A LARGE TREE WAS RIPPED OUT OF THE GROUND. ALSO...A HOLE RIPPED IN THE ROOF OF ONE HOUSE WHILE SOME SIDING WAS TORN OFF THE SIDE OF A NEIGHBORING HOME. THE DAMAGE OCCURRED AROUND 835 PM. INNES/LOTT
Special weather statement, May 7, 9:13 PM EDT, 54 minutes before
OHZ062-080125- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 913 PM EDT THU MAY 7 1998 ...THE TORNADO WARNING FOR GREENE COUNTY HAS EXPIRED... THE THUNDERSTORM THAT PRODUCED THE TORNADO IN GREENE COUNTY HAS WEEKEND AND MOVED OUT OF GREENE COUNTY. A LARGE TREE WAS RIPPED OUT OF THE GROUND. ALSO...A HOLE RIPPED IN THE ROOF OF ONE HOUSE WHILE SOME SIDING WAS TORN OFF THE SIDE OF A NEIGHBORING HOME. THE DAMAGE OCCURRED AROUND 835 PM. INNES/LOTT
Local storm report, May 7, 9:44 PM EDT, 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
944 PM EDT THU MAY 07 1998
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0939 PM SPRINGFIELD OH FLOODING
05/07/98 CLARK FLOODING OF BASEMENTS AND
FIELDS.
KELLSLocal storm report, May 7, 9:44 PM EDT, 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
944 PM EDT THU MAY 07 1998
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0939 PM SPRINGFIELD OH FLOODING
05/07/98 CLARK FLOODING OF BASEMENTS AND
FIELDS.
KELLSLocal storm report, May 7, 10:02 PM EDT, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
1002 PM EDT THU MAY 07 1998
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0835 PM XENIA OH TORNADO
05/07/98 GREENE TORNADO DAMAGED A ROOF AND
RIPPED OFF SIDING FROM A
HOUSE. IT KNOCKED DOWN A
BIG TREE AND OTHER TREES
WERE BENT OVER.
0836 PM XENIA OH TORNADO
05/07/98 GREENE XENIA POLICE SPOT TORNADO
ON THE EAST END OF TOWN.
KELLSLocal storm report, May 7, 10:02 PM EDT, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
1002 PM EDT THU MAY 07 1998
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0835 PM XENIA OH TORNADO
05/07/98 GREENE TORNADO DAMAGED A ROOF AND
RIPPED OFF SIDING FROM A
HOUSE. IT KNOCKED DOWN A
BIG TREE AND OTHER TREES
WERE BENT OVER.
0836 PM XENIA OH TORNADO
05/07/98 GREENE XENIA POLICE SPOT TORNADO
ON THE EAST END OF TOWN.
KELLSThe office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 8:15 PM EDT | Tornado Warning | ILN | Greene | 50 min |
| May 7, 9:02 PM EDT | Flash Flood Warning | ILN | Clark | 2 hr |
| May 7, 9:59 PM EDT | Flash Flood Warning | ILN | Greene | 2 hr |
Nearby
Flash Flood Warnings in Ohio, 1998Every flash flood warning in 1998
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; radar from the NEXRAD Level II archive.