Alert archive / Ohio / Flash Flood Warnings in 1998

Flash Flood Warning 84, NWS Wilmington, OH

June 16, 1998Scioto County, Ohio

NWS Wilmington, OH issued this flash flood warning at Jun 16, 1998, 2:21 PM EDT for Scioto 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
Jun 16, 1998, 2:21 PM EDT (18:21 UTC)
Expired
Jun 16, 1998, 5:20 PM EDT
In force
3 hr
Issued by
NWS Wilmington, OH
Area
Whole counties

County Scioto County, OH

The radar

The Cincinnati radar (KILN), 99 km from the middle of the area, began a volume at 18:24 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 12:00Z, 6.4 hours before the alert went out and 98 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-pSkew-T log-p diagram, Cncnati-Daytn, OH at 12:00Z on 1998-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 353 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 12:00Z on 1998-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
353 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
521 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
39 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KILN 161822
FFWILN
OHC145-162120-

BULLETIN
FLOOD WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
221 PM EDT TUE JUN 16 1998

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* FLOOD WARNING FOR SMALL STREAMS FOR...
  SCIOTO COUNTY IN SOUTH CENTRAL OHIO.

* EFFECTIVE UNTIL 520 PM EDT.

* AT 215 PM EDT...WEATHER SERVICE RADAR INDICATED THAT UP TO AN
  INCH OF RAIN HAD FALLEN SINCE 100 PM EDT. OVER PORTIONS OF SCIOTO
  COUNTY. AN ADDITIONAL LINE OF THUNDERSTORMS PRODUCING UP TO
  ANOTHER INCH AN HOUR OF RAIN WILL PUSH THROUGH THE COUNTY THROUGH
  300 PM EDT.

* THE MAIN THREAT FOR FLOODING WILL BE IN WESTERN SCIOTO COUNTY
  FROM RAREDON TO FRIENDSHIP...WHERE FLOODING HAS BEEN A RECENT
  PROBLEM.

DURING HEAVY RAINS...KEEP CHILDREN AWAY FROM STORM DRAINS AND
CREEKS. SHALLOW...GENTLY FLOWING WATER CAN BECOME A RAGING TORRENT
IN A MATTER OF MINUTES.

MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.

DIAN-REED

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 16, 10:02 AM EDT, 4 hours 19 minutes earlier.

Area forecast discussion, Jun 16, 10:02 AM EDT, 4 hours 19 minutes before
FORECAST COORDINATION MESSAGE
NATIONAL WEATHER SERVICE WILMINGTON OH
1002 AM EDT TUE JUN 16 1998

VORT MAX CURRENTLY OVER SOUTHERN IL IS PROGGED TO MOVE IN SOUTHERN OHIO
BY AFTERNOON.  MODIFIED ILN SOUNDING CONTINUED TO SHOW AN UNSTABLE
ATMOSPHERE OVER THE REGION...WITH LI TO -8 AND CAPES OVER 2400 J/KG.
ILN RADAR SHOWING STORMS FIRING IN SOUTHEAST IN...IN THE PVA AND MOVING
ACROSS THE MIAMI VALLEY.  THIS AREA ALREADY SOAKED FROM THE RAINS OF
THE PAST SEVERAL DAYS. FFA IN THIS REGION A TOUGH CALL...FFG FROM
YESTERDAY WAS AROUND THREE QUARTERS OF AN INCH...WITH PRECIPIATABLE
WATERS AT 1.26 AND MORE SHOWERS EXPECTED THIS AFTERNOON IT WILL BE
CLOSE.

UPPER RIDGE BUILDS OVER CWA TONIGHT INTO WEDNESDAY...BRINGING TEMPORARY
BREAK FROM THE WET WEATHER.

LOOKED OVER CURRENT FORECAST AND IN GENERAL IT IS LOOKING GOOD.

SITES

In the hours before

Special weather statement, Jun 16, 12:15 PM EDT, 2 hours 6 minutes before
OHZ054>056-062>065-071>074-078>082-088-KYZ093-096>100-162200-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
1215 PM EDT TUE JUN 16 1998

...SEVERE THUNDERSTORM WATCH FOR EXTREME EASTERN PORTIONS OF THE
MIAMI VALLEY...GREATER CINCINNATI TRI-STATE AREA...CENTRAL AND
SOUTH-CENTRAL OHIO ALONG WITH NORTHEAST KENTUCKY UNTIL 6 PM...

AN EXTREMELY UNSTABLE ATMOSPHERE INTERACTING WITH AN UPPER LEVEL
DISTURBANCE WILL PRODUCE STRONG TO SEVERE THUNDERSTORMS THIS
AFTERNOON.

SITES
Special weather statement, Jun 16, 12:15 PM EDT, 2 hours 6 minutes before
OHZ054>056-062>065-071>074-078>082-088-KYZ093-096>100-162200-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
1215 PM EDT TUE JUN 16 1998

...SEVERE THUNDERSTORM WATCH FOR EXTREME EASTERN PORTIONS OF THE
MIAMI VALLEY...GREATER CINCINNATI TRI-STATE AREA...CENTRAL AND
SOUTH-CENTRAL OHIO ALONG WITH NORTHEAST KENTUCKY UNTIL 6 PM...

AN EXTREMELY UNSTABLE ATMOSPHERE INTERACTING WITH AN UPPER LEVEL
DISTURBANCE WILL PRODUCE STRONG TO SEVERE THUNDERSTORMS THIS
AFTERNOON.

SITES
Local storm report, Jun 16, 1:19 PM EDT, 1 hour 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
119 PM EDT TUE JUN 16 1998

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

1150 AM    MONROE                    OH   .75 INCH HAIL
06/16/98   BUTLER

1211 PM                              OH   1.75 INCH HAIL
06/16/98   HAMILTON                       ACROSS WEST SIDE OF
                                          CINCINNATI IN QUEENS GATE

1225 PM    NEWTOWN                   OH   .75 INCH HAIL
06/16/98   HAMILTON                       RAINFALL ALSO ACCUMULATED
                                          1.00 IN ONE HOUR

1232 PM                              KY   WIND DAMAGE
06/16/98   KENTON                         TREES DOWNED ACROSS THE
                                          NORTHERN PART OF COUNTY
Local storm report, Jun 16, 1:19 PM EDT, 1 hour 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
119 PM EDT TUE JUN 16 1998

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

1150 AM    MONROE                    OH   .75 INCH HAIL
06/16/98   BUTLER

1211 PM                              OH   1.75 INCH HAIL
06/16/98   HAMILTON                       ACROSS WEST SIDE OF
                                          CINCINNATI IN QUEENS GATE

1225 PM    NEWTOWN                   OH   .75 INCH HAIL
06/16/98   HAMILTON                       RAINFALL ALSO ACCUMULATED
                                          1.00 IN ONE HOUR

1232 PM                              KY   WIND DAMAGE
06/16/98   KENTON                         TREES DOWNED ACROSS THE
                                          NORTHERN PART OF COUNTY
Local storm report, Jun 16, 1:39 PM EDT, 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
139 PM EDT TUE JUN 16 1998

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

0100 PM    TOLLESBORO                KY   1 INCH HAIL
06/16/98   LEWIS

0104 PM                              KY   WIND DAMAGE
06/16/98   KENTON                         TREES DOWNED  ACROSS
       (                                   NORTHERN PART OF COUNTY
Local storm report, Jun 16, 2:08 PM EDT, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
208 PM EDT TUE JUN 16 1998

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

1200 PM    GREENDALE                 IN   WIND DAMAGE
06/16/98   DEARBORN                       TREES DOWNED. ALSO SMALL
                                          TO MODERATE TREES DOWNED
                                          IN AUORA

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 8:25 PM EDTFlash Flood WarningILNAdams, Scioto2 hr
Jun 15, 9:36 PM EDTFlash Flood WarningILNUnion119 min
Jun 16, 11:20 AM EDTFlash Flood WarningILNHamilton90 min
Jun 16, 11:26 AM EDTFlash Flood WarningILNButler94 min
Jun 16, 11:32 AM EDTSevere Thunderstorm WarningILNButler33 min
Jun 16, 11:48 AM EDTSevere Thunderstorm WarningILNWarren47 min
Jun 16, 11:56 AM EDTSevere Thunderstorm WarningILNHamilton29 min
Jun 16, 12:12 PM EDTSevere Thunderstorm WarningILNClinton48 min
Jun 16, 12:21 PM EDTSevere Thunderstorm WarningILNClermont, Hamilton34 min
Jun 16, 12:33 PM EDTFlash Flood WarningILNClermont2 hr
Jun 16, 12:37 PM EDTSevere Thunderstorm WarningILNFayette, Highland48 min
Jun 16, 12:39 PM EDTSevere Thunderstorm WarningILNGreene21 min
Jun 16, 12:52 PM EDTSevere Thunderstorm WarningILNAdams33 min
Jun 16, 12:53 PM EDTSevere Thunderstorm WarningILNBrown42 min
Jun 16, 1:05 PM EDTSevere Thunderstorm WarningILNPickaway50 min
Jun 16, 1:07 PM EDTSevere Thunderstorm WarningILNScioto53 min
Jun 16, 1:25 PM EDTSevere Thunderstorm WarningILNFranklin65 min
Jun 16, 1:35 PM EDTSevere Thunderstorm WarningILNFairfield60 min
Jun 16, 1:56 PM EDTSevere Thunderstorm WarningILNPike, Scioto49 min
Jun 16, 2:06 PM EDTSevere Thunderstorm WarningILNDelaware49 min
Jun 16, 2:07 PM EDTSevere Thunderstorm WarningILNLicking48 min
Jun 16, 4:12 PM EDTSevere Thunderstorm WarningILNScioto38 min

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.