Alert archive / Kentucky / Flash Flood Warnings in 1998
Flash Flood Warning 9, NWS Wilmington, OH
NWS Wilmington, OH issued this flash flood warning at Apr 8, 1998, 3:37 AM EDT for Campbell County, Kenton County, Kentucky. It was in force for 118 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 8, 1998, 3:37 AM EDT (07:37 UTC)
- Expired
- Apr 8, 1998, 5:35 AM EDT
- In force
- 118 min
- Issued by
- NWS Wilmington, OH
- Area
- Whole counties
Counties Campbell County, KY, Kenton County, KY
The radar
The Cincinnati radar (KILN), 76 km from the middle of the area, began a volume at 07:38 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, 7.6 hours before the alert went out and 79 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1470 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 385 m²/s²
- 0-3 km storm-relative helicity
- 517 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 KILN 080738 FFWILN KYC037-117-080935- BULLETIN FLOOD WARNING NATIONAL WEATHER SERVICE WILMINGTON OH 337 AM EDT WED APR 8 1998 THE NATIONAL WEATHER SERVICE IN WILMINGTON OH HAS ISSUED A FLOOD WARNING FOR SMALL STREAMS EFFECTIVE UNTIL 535 AM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHERN KENTUCKY ...CAMPBELL COUNTY ...KENTON COUNTY ...THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL OVER KENTON AND CAMPBELL COUNTIES... THUNDERSTORMS TRACKING ACROSS NORTHERN KENTON AND NORTHERN CAMPBELL COUNTIES WERE PRODUCING VERY HEAVY RAINFALL. WEATHER SERVICE DOPPLER RADAR WAS ESTIMATING 1 TO 2 INCHES OF RAINFALL DURING THE PERIOD FROM 230 AM TO 330 AM EDT. ADDITIONAL THUNDERSTORMS WILL TRACK ACROS.S NORTHERN KENTON AND NORTHERN CAMPBELL COUNTIES THROUGH 530 AM EDT WHICH WILL CAUSE FLOODING AND AREA CREEKS TO RISE ABOVE BANKFULL. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLASH FLOODING. RANDALL
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 Apr 8, 3:09 AM EDT, 28 minutes earlier.
Area forecast discussion, Apr 8, 3:09 AM EDT, 28 minutes before
FORECAST COORDINATION MESSAGE NATIONAL WEATHER SERVICE WILMINGTON OH 309 AM EDT WED APR 8 1998 NMRS TSRA AFFECTING FA ATTM. STRONGEST STORMS HAVE BEEN JUST S OF WARM FRONT WHICH WAS N OF CVG BUT S OF HAO-ILN AT 03Z. WITH WATCHES IN AFFECT AND TSRA BACK TO WRN IN...WL NEED EARLY AM TSRA IN ZONES. MODELS INDICATE SOME DRYING THIS AM SO TSRA SHOULD TAPER OFF AROUND DAYBREAK AND THEN CONDITIONS WL BE QUIET UNTIL THE PM HOURS. MODELS SHOW STRONG VORT MOVG INTO THE TN VLY WITH A LARGE UVV COUPLET GRAZING SERN FA. WITH INSTABILITY IN PLACE XPCT SCT TSRA TO DEVELOP BY LATE PM. STRONGEST STORMS SHOULD BE IN ERN FA SO SUGGEST HAVING SVR WORDING VC CMH-PMH. SHRA/TSRA WL LAST THROUGH TONIGHT AND INTO THU. MOS TEMPS AND POPS SEEM REASONABLE. WILKINSON
In the hours before
Special weather statement, Apr 7, 10:53 PM EDT, 4 hours 44 minutes before
INZ073>075-080-080900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 1053 PM EDT (953 PM EST) TUE APR 7 1998 ...TORNADO WATCH IN EFFECT FOR SOUTHEAST INDIANA UNTIL 5 AM EDT (4 AM EST)... A WARM FRONT WHICH EXTENDS FROM CENTRAL ILLINOIS THROUGH SOUTHEAST INDIANA HAS BEEN THE FOCUS FOR THUNDERSTORM DEVELOPMENT TO OUR WEST. SEVERE THUNDERSTORMS WITH A HISTORY OF TORNADOES HAVE DEVELOPED ALONG AND NORTH OF THIS WARM FRONT ACROSS CENTRAL ILLINOIS AND WEST CENTRAL INDIANA. ADDITIONAL THUNDERSTORMS HAVE DEVELOPED ACROSS SOUTHWEST INDIANA AND SOUTHERN ILLINOIS IN THE WARM AIR SECTOR. THE THREAT FOR SEVERE THUNDERSTORMS WHICH MAY PRODUCE TORNADOES IS EXPECTED TO SPREAD EAST ACROSS SOUTHERN INDIANA OVERNIGHT. THE FOLLOWING COUNTIES ARE IN A TORNADO WATCH UNTIL 5 AM EDT (4 AM EST): FRANKLIN...RIPLEY...DEARBORN...OHIO AND SWITZERLAND. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. RANDALL
Special weather statement, Apr 8, 1:43 AM EDT, 1 hour 54 minutes before
OHZ026-034-035-042>045-051>054-060>063-070>072-077>081-INZ050- 058-059-066-073>075-080-KYZ091>093-081000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 143 AM EDT WED APR 8 1998 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MUCH OF WESTERN OHIO EXTREME NORTHERN KENTUCKY...AND SOUTHEASTERN INDIANA UNTIL 600 AM EDT (500 AM EST)... THIS WATCH REPLACES THE TORNADO WATCH THAT WAS PREVIOUSLY IN EFFECT FOR SOUTHEASTERN INDIANA. SOME CITIES INCLUDED IN THE WATCH AREA ARE CINCINNATI...DAYTON... COVINGTON KENTUCKY...SPRINGFIELD...RICHMOND INDIANA. NUMEROUS THUNDERSTORMS WERE MOVING ACROSS INDIANA INTO WESTERN OHIO EARLY THIS MORNING. THESE STORMS ARE CAPABLE OF PRODUCING LARGE HAIL AND WIND GUSTS IN EXCESS OF 60 MPH. STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES. WILKINSON
Special weather statement, Apr 8, 1:43 AM EDT, 1 hour 54 minutes before
OHZ026-034-035-042>045-051>054-060>063-070>072-077>081-INZ050- 058-059-066-073>075-080-KYZ091>093-081000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 143 AM EDT WED APR 8 1998 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MUCH OF WESTERN OHIO EXTREME NORTHERN KENTUCKY...AND SOUTHEASTERN INDIANA UNTIL 600 AM EDT (500 AM EST)... THIS WATCH REPLACES THE TORNADO WATCH THAT WAS PREVIOUSLY IN EFFECT FOR SOUTHEASTERN INDIANA. SOME CITIES INCLUDED IN THE WATCH AREA ARE CINCINNATI...DAYTON... COVINGTON KENTUCKY...SPRINGFIELD...RICHMOND INDIANA. NUMEROUS THUNDERSTORMS WERE MOVING ACROSS INDIANA INTO WESTERN OHIO EARLY THIS MORNING. THESE STORMS ARE CAPABLE OF PRODUCING LARGE HAIL AND WIND GUSTS IN EXCESS OF 60 MPH. STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES. WILKINSON
Special weather statement, Apr 8, 2:55 AM EDT, 42 minutes before
OHZ034-035-042>045-051>054-060>063-070>072-077>081-INZ050-058-059- 066-073>075-080-KYZ089>100-081300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 254 AM EST WED APR 8 1998 ...A TORNADO WATCH HAS BEEN ISSUED FOR NORTHERN KENTUCKY TO THE SOUTH OF BOONE...KENTON...AND CAMPBELL COUNTY UNTIL 900 AM EDT... SOME TOWNS INCLUDED IN THE WATCH AREA ARE FALMOUTH...OWENTON...AND MAYSVILLE. ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MUCH OF WESTERN OHIO...EXTREME NORTHERN KENTUCKY...AND SOUTHEASTERN INDIANA UNTIL 600 AM EDT (500 AM EST)... SOME CITIES INCLUDED IN THIS WATCH AREA ARE CINCINNATI...DAYTON... COVINGTON KENTUCKY...SPRINGFIELD...AND RICHMOND INDIANA. NUMEROUS THUNDERSTORMS WERE MOVING ACROSS INDIANA...WESTERN OHIO...AND KENTUCKY EARLY THIS MORNING. THESE STORMS ARE CAPABLE OF PRODUCING LARGE HAIL...WIND GUSTS IN EXCESS OF 60 MPH...AND TORNADOES. STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES. WILKINSON
The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 2:17 AM EDT | Severe Thunderstorm Warning | ILN | Boone | 33 min |
| Apr 8, 2:36 AM EDT | Flash Flood Warning | ILN | Boone | 3 hr |
| Apr 8, 2:40 AM EDT | Tornado Warning | ILN | Boone | 50 min |
| Apr 8, 3:05 AM EDT | Severe Thunderstorm Warning | ILN | Campbell, Kenton | 45 min |
Nearby
Flash Flood Warnings in Kentucky, 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.