Alert archive / Kentucky / Flash Flood Warnings in 1998

Flash Flood Warning 64, NWS Wilmington, OH

June 11, 1998Kenton County, Kentucky

NWS Wilmington, OH issued this flash flood warning at Jun 11, 1998, 2:33 PM EDT for Kenton County, Kentucky. 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: Jun 11, 1998, 2:33 PM EDT (18:33 UTC)
Expired: Jun 11, 1998, 5:35 PM EDT
In force: 3 hr
Issued by: NWS Wilmington, OH
Area: Whole counties

County Kenton County, KY

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 6.6 hours before the alert went out and 84 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1257 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 619 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 98 m²/s²
0-3 km storm-relative helicity: 109 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 4.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KCVG 111837 COR
FFWILN
KYC117-112135-

BULLETIN - EAS ACTIVATION REQUIRED
FLASH FLOOD WARNING...CORRECTION
NATIONAL WEATHER SERVICE WILMINGTON OH
233 PM EDT THU JUN 11 1998

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  KENTON COUNTY IN NORTHERN KENTUCKY.

* EFFECTIVE UNTIL 535 PM EDT.

* AT 230 PM EDT... LAW ENFORCEMENT OFFICIALS REPORTED THE
  POSSIBILITY THAT DOE RUN CREEK DAM WILL FAIL IF ANY ADDITIONAL
  HEAVY RAINFALL OCCURS. THE SPILLWAY BEHIND THE DAM WAS FULL AND
  ANY ADDITIONAL RAINFALL COULD CAUSE THE DAM TO FAIL. ADDITIONAL
  RAINFALL AMOUNTS OF A QUARTER TO A HALF INCH ARE POSSIBLE.

* FLOODING WOULD OCCUR ALONG PIONEER PARK AND ALONG ROUTE 17

  EXVACUATIONS HAVE ALREADY OCCURRED NEAR EDGEWOOD ALONG OLD ROUTE
  17. IF YOU ARE IN THESE AREAS... MOVE TO HIGHER GROUND. DO NOT
  DRIVE THROUGH WATER COVERING THE ROAD.


DIAN-REED/FARINA

CORRECTION TO ADD EAS ACTIVATION

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 Jun 11, 2:33 PM EDT, 0 minutes earlier.

Area forecast discussion, Jun 11, 2:33 PM EDT, 0 minutes before

FORECAST COORDINATION MESSAGE
NATIONAL WEATHER SERVICE WILMINGTON OH
233 PM EDT THU JUN 11 1998

DISC:  IMMEDIATED CONCERN CONTINUES TO BE FLOOD POTENTIAL. FORCED
ASCENT OF HIGH THETA-E AIR ALONG NEARLY STATIONARY MESOSCALE BNDRY
CONTINUES TO FOCUS +RA DVLPMNT IN THE AREA.  RADAR ESTIMATES INDICATE A
BROAD AXIS OF 3-4 INCH TOTALS SINCE THIS MORNING FROM E CENTRAL INDIANA
INTO N KY...WITH A MAX OF 5.6 INCHES IN BOONE COUNTY.  FLOODING HAS
BEEN WIDESPREAD IN THESE AREAS.  OVERNIGHT LLVL MSTR WL CONTINUE TO
FLOW INTO THE REGION ON A N INCREASING LLVL JET.  THERE WL BE CHGS
ALOFT HWVR...AS MODEL TIMESXNS INDICATE A WARMING AND DRYING TREND IN
THE MID-UPPER LVLS.  WITH THIS IN MIND...I XPCT TO SEE A GRADUAL
DECREASE IN PCPN CVRG ACRS THE AREA.  WL STILL SEE THE THREAT FOR
STRONG CONVECTION NEAR THE BNDRY HWVR...AND I FEEL AN FFA IS JUSTIFIED
OVERNIGHT WHERE THE HEAVIEST RAIN HAS FALLEN FROM EAST CENTRAL INDIANA
INTO NORTH CENTRAL KY.

FCST WIND FIELDS AND STABILITY PARAMETERS SUGGEST ORGANIZED/STRONG
CONVECTION REMAINS PSBL THROUGH FRI NGT...BEFORE COLD FRONT USHERS DRIER
AIR INTO THE REGION.  HAVE KEPT POPS IN THE CHC CATEGORY THROUGHOUT THE
PD...AND UNDERCUT MOS TEMPS JUST A BIT.
N
CMH 69/80/67/78 6344
CVG 69/81/68/79 4444
DAY 68/81/66/77 5344

JOHNSTONE

In the hours before

Local storm report, Jun 11, 2:25 PM EDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
225 PM EDT THU JUN 11 1998

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1020 AM                              IN   FLOODING
06/11/98   FRANKLIN                       WATER COVERING THE ROADS
                                          ACROSS THE WESTERN PORTION
                                          OF THE COUNTY ROADS CLOSED
                                          ACROSS THE COUNTY

1056 AM    SIDNEY                    OH   FLOODING
06/11/98   SHELBY                         STREET FLOODING ACROSS
                                          CITY OF SIDNEY WATER
                                          ACROSS ROADS IN WESTERN
                                          PORTION OF COUNTY

1105 AM                              KY   FLOODING
06/11/98   BOONE                          ROADS CLOSED DUE TO WATER
                                          ACROSS THE ROADS

The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 10, 8:06 PM EDT	Severe Thunderstorm Warning	ILN	Bracken	29 min
Jun 11, 7:55 AM EDT	Severe Thunderstorm Warning	ILN	Grant	50 min
Jun 11, 10:01 AM EDT	Severe Thunderstorm Warning	ILN	Boone	49 min
Jun 11, 10:45 AM EDT	Flash Flood Warning	ILN	Boone	2 hr
Jun 11, 11:04 AM EDT	Flash Flood Warning	ILN	Kenton	116 min
Jun 11, 11:33 AM EDT	Flash Flood Warning	ILN	Boone, Kenton	3 hr
Jun 11, 11:33 AM EDT	Flash Flood Warning	ILN	Campbell	3 hr
Jun 11, 11:54 AM EDT	Flash Flood Warning	ILN	Pendleton	3 hr
Jun 11, 1:37 PM EDT	Flash Flood Warning	ILN	Grant, Pendleton	3 hr
Jun 11, 1:37 PM EDT	Flash Flood Warning	ILN	Bracken, Mason, Robertson	3 hr
Jun 11, 1:37 PM EDT	Flash Flood Warning	ILN	Lewis	3 hr

Nearby

Flash Flood Warnings in Kentucky, 1998 Every 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.