Alert archive / Kentucky / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 10, NWS Wilmington, OH
NWS Wilmington, OH issued this severe thunderstorm warning at Apr 8, 1998, 3:05 AM EDT for Campbell County, Kenton County, Kentucky. It was in force for 45 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 8, 1998, 3:05 AM EDT (07:05 UTC)
- Expired
- Apr 8, 1998, 3:50 AM EDT
- In force
- 45 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 07:08 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 8, 3:08 AM EDT | Hail 2.75 | Erlanger, KY | Hail accumulated several inches across the northern part of the county. Three inches of hail remained on the ground at 700 am EST. |
| Apr 8, 3:10 AM EDT | Hail 1.75 | Southgate, KY |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 8, 2:00 AM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 7.1 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
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Apr 7, 9:00 PM EDT, 6 hours 5 minutes earlier.
Area forecast discussion, Apr 7, 9:00 PM EDT, 6 hours 5 minutes before
FORECAST COORDINATION MESSAGE NATIONAL WEATHER SERVICE WILMINGTON OH 900 PM EDT TUE APR 7 1998 FCST CHALLENGES THRU PD ARE CHC/S FOR TSTMS. LTST SFC ANLYS SHWS LO PRES OVR SRN IA WITH WRMFNT XTNDG ESE ACRS CNTRL IL SRN IN AND ACRS XTRM NRN KY. TSTMS HV DVLPD ALONG WRMFNT IN AREA OF GOOD MOIST FLUX CNVRGC. WHERE INSTBY IS GREATEST ACRS CNTRL IL AND CNTRL IN...WHERE STMS HV EXCEEDED SVR LIMITS. INSTBY HS BEEN LIMITING FACTOR OVR NRN KY AND SRN OH. DWPT AXIS SHIFTS E INTO SRN OH BY 06Z WITH AREA IN LEFT FRONT QUAD OF UPR JET. XPCT TSVMS TO CONT TO DVLP ESE ALONG AND N OF WRMFNT INTO ERN IN AND WRN OH. WITH LOSS OF DAYTIME HEATG AND WITH STMS MOVG INTO MORE STABLE AIR OVR OH WE EXPCT SOME WEAKENING TO OCCUR. SLO MOVG WRMFNT MOVG NWD WL DIMINISH THREAT FOR TSTMS ACRS NRN KY AND SRN OH TNGT...WHILE GREATER THREAT WL CONT ALONG AND N OF BNDRY. SUGG TRENDING TSTM POPS THIS WAY. XPCT A LULL IN ACTION LTR TNGT THRU FIRST PART OF WED. AMS RELOADS ON WED EVE WITH APPRCH OF UPR LO. GREATEST THREAT FOR SVR-WX APPEARS TO BE OVR FAR SRN OH AND NRN KY WHERE BEST DIFF. POSITIVE VORTICITY IS EXPECTED. CVG 054/075 338 DAY 050/073 548 CMH 051/074 447 PRT 055/075 337 AVX 050/070 646 RANDALL
In the hours before
Special weather statement, Apr 7, 10:53 PM EDT, 4 hours 12 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 22 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 22 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, 10 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, 2:27 AM EDT | Severe Thunderstorm Warning | ILN | Hamilton | 43 min |
| Apr 8, 2:53 AM EDT | Severe Thunderstorm Warning | ILN | Clermont | 47 min |
| Apr 8, 3:17 AM EDT | Severe Thunderstorm Warning | ILN | Hamilton | 63 min |
| Apr 8, 3:29 AM EDT | Severe Thunderstorm Warning | ILN | Clinton, Highland | 31 min |
| Apr 8, 3:29 AM EDT | Tornado Warning | ILN | Clinton, Highland | 31 min |
| Apr 8, 3:51 AM EDT | Flash Flood Warning | ILN | Clermont, Hamilton | 3 hr |
| Apr 8, 4:26 AM EDT | Severe Thunderstorm Warning | ILN | Ross | 59 min |
| Apr 8, 1:55 PM EDT | Severe Thunderstorm Warning | ILN | Franklin | 50 min |
| Apr 8, 2:10 PM EDT | Severe Thunderstorm Warning | ILN | Delaware | 50 min |
| Apr 8, 2:29 PM EDT | Severe Thunderstorm Warning | ILN | Licking | 41 min |
| Apr 8, 4:33 PM EDT | Severe Thunderstorm Warning | ILN | Scioto | 62 min |
| 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, 3:37 AM EDT | Flash Flood Warning | ILN | Campbell, Kenton | 118 min |
| Apr 8, 1:01 AM EDT | Severe Thunderstorm Warning | ILN | Ripley | 49 min |
| Apr 8, 1:21 AM EDT | Tornado Warning | ILN | Switzerland | 49 min |
| Apr 8, 1:39 AM EDT | Severe Thunderstorm Warning | ILN | Dearborn, Ohio | 61 min |
| Apr 8, 2:11 AM EDT | Severe Thunderstorm Warning | ILN | Switzerland | 44 min |
| Apr 8, 2:32 AM EDT | Flash Flood Warning | ILN | Dearborn | 118 min |
Nearby
Severe Thunderstorm Warnings in Kentucky, 1998Every severe thunderstorm 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.