Alert archive / Ohio / Tornado Warnings in 1998

Tornado Warning 15, NWS Wilmington, OH

July 19, 1998Hardin County, Ohio

NWS Wilmington, OH issued this tornado warning at Jul 19, 1998, 8:03 PM EDT for Hardin County, Ohio. It was in force for 47 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
Jul 19, 1998, 8:03 PM EDT (00:03 UTC)
Expired
Jul 19, 1998, 8:50 PM EDT
In force
47 min
Issued by
NWS Wilmington, OH
Area
Whole counties

County Hardin County, OH

The radar

The Cincinnati radar (KILN), 139 km from the middle of the area, began a volume at 00:06 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 19, 4:15 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.1 hours before the alert went out and 138 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 00:00Z on 1998-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2300 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 00:00Z on 1998-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 189 square meters per square second.193958Sfc1 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
2300 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
1282 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
189 m²/s²
0-3 km storm-relative helicity
232 m²/s²
Significant tornado parameter
1.0
Supercell composite
7.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KILN 200003
TORILN
OHC065-200050-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
803 PM EDT SUN JUL 19 1998

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* TORNADO WARNING FOR...
  HARDIN COUNTY IN WEST CENTRAL OHIO.

* UNTIL 850 PM EDT

* AT 804 PM EDT... WEATHER SPOTTERS INDICATED A TORNADO
  NEAR ADA MOVING EAST AT 35 MPH.
* THE TORNADO IS EXPECTED TO BE NEAR...
  DUNKIRK AT 810 PM.
GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR!

.END/SITES


&

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Jul 19, 3:05 AM EDT, 16 hours 58 minutes earlier.

Area forecast discussion, Jul 19, 3:05 AM EDT, 16 hours 58 minutes before
FORECAST COORDINATION MESSAGE
NATIONAL WEATHER SERVICE WILMINGTON OH
305 AM EDT SUN JUL 19 1998

LTST SFC ANLYS SHWG WRM FNT FM SRN IND INTO CNTRL KY...JUST SW OF
FA. SHWRS AND TSMTS CONTG TO DVLP AND TRACK SE ALG FNT IN AREA OF
GOOD THETA E CONV...JUST BRUSHING FAR SWRN CWA. WUD XPCT FNT TO LIFT
SLOWLY N THRU THIS MRNG SO XPCT TO SEE SOME SHWRS AND TSTMS WORK
INTO NRN KY CNTYS. HOWEVER...WITH MID LVL S/W CONTG TO MOV E...SHUD
SEE SBSDNC DVLP ACRS AREA THRU THIS MRNG SO ANY SHWRS AND TSTMS THAT
DO MAKE IT INTO FA...SHUD NOT HANG ARND TOO LONG. OTHRWS...CLR SKIES
IN PLACE ACRS FA THIS MRNG AS MCS OVR MN/IA CONTS TO PUSH ESE. AT
06Z...ETA APPEARED TO HAV BEST HANDLE ON THIS AND WL LEAN TWD ETA
SOLUTION THRU TNGT. XPCT TO SEE SOME DEBRIS CLDS WORK INTO NRN
PORTIONS OF FA THRU LATE MRNG WHICH MAY CUT BACK ON HTG A LTL BUT
WITH GOOD WAA...SHUD STILL SEE TMPS WARM UP PRETTY GOOD. AMS PROGD
TO DSTBLZ THRU THIS AFTN WITH CAPES IN THE 2-3K RANGE BY 00Z. WITH
VORT AXIS BRUSHING ACRS NRN FA LATE THIS AFTN AND THIS EVNG...LOOKS
LIKE BEST CHC OF PCPN/SVR WL BE ACRS DAY AND CMH AREAS. WITH SOME
WRMR AIR ALF...INSTBLTY NOT QUITE AS GREAT ACRS SRN FA...BUT WITH
WRMFNT PUSHG SLOWLY NE...CHC POPS AlLSO RSBL ACRS THE S FOR LATE THIS
AFTN AND EVNG. RDG AXIS AND WRMR AIR ALF WORK IN ACRS AREA ON MON
WHICH SHUD KP ANY PCPN GNRLY TO THE NORTH OF FA.

DAY 89/72/90 451
CMH 90/72/92 451
CVG 90/72/92 340
PMH 90/72/92 230

LOTT

In the hours before

Special weather statement, Jul 19, 2:07 PM EDT, 5 hours 56 minutes before
KYZ094>100-192300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
207 PM EDT SUN JUL 19 1998

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PARTS OF NORTHERN
   KENTUCKY UNTIL 700 PM...

A VERY UNSTABLE ATMOSPHERE WAS IN PLACE ACROSS NORTHERN KENTUCKY
THIS AFTERNOON. THUNDERSTORMS WERE DEVELOPING AND ARE EXPECTED TO
INCREASE IN INTENSITY AS THE AFTERNOON PROGRESSES.  WINDS IN EXCESS
OF 60 MPH AND HAIL GREATER THAN THREE-QUARTERS OFt AN INCH IN DIAMTER
ARE POSSIBLE.

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES.

.END/WILKINSON
Special weather statement, Jul 19, 4:28 PM EDT, 3 hours 35 minutes before
OHZ026-034-035-042>046-051-052-200200-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
428 PM EDT SUN JUL 19 1998

...SEVERE THUNDERSTORM WATCH FOR WEST CENTRAL OHIO AND NORTHERN
PORTIONS OF THE MIAMI VALLEY AND CENTRAL OHIO UNTIL 10 PM EDT...

THUNDERSTORMS ARE DEVELOPING OVER NORTHEAST ILLINOIS.  THE ACTIVITY
WILL IS EXPECTED TO BECOME SEVERE DURING THE NEXT HOUR AS IT MOVES
INTO A VERY UNSTABLE AIR MASS OVER INDIANA AND OHIO.  THE
MAIN THREATS FROM THE STORMS WILL BE DAMAGING WINDS AND LARGE HAIL.

SITES
Special weather statement, Jul 19, 7:03 PM EDT, 1 hour before
OHZ026-034-035-042>046-051-052-200000-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
703 PM EDT SUN JUL 19 1998

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM EDT...

A LINE OF SEVERE THUNDERSTORMS MOVING THROUGH NORTHEAST INDIANA HAS
PRODUCED THUNDERSTORM WIND GUSTS BETWEEN 60 MPH AND 80 MPH AS IT
MOVED THROUGH NORTHERN INDIANA.

THIS LINE IS EXPECTED TO MOVE INTO WESTERN OHIO BY 8 PM EDT.

STAY TUNED TO NOAA WEATHER: RADIO OR YOUR MEDIA FOR FURTHER UPDATES.

.END/SITES/JOHNSTONE
Special weather statement, Jul 19, 7:45 PM EDT, 18 minutes before
OHZ056-200500-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
745 PM EDT SUN JUL 19 1998

...SEVERE THUNDERSTORM WATCH FOR LICKING COUNTY UNTIL 1 AM EDT.
...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM EDT FOR WEST
CENTRAL OHIO AND NORTHERN PORTIONS OF THE MIAMI VALLEY AND CENTRAL
OHIO...

A LINE OF SEVERE THUNDERSTORMS MOVING EAST-SOUTHEAST THROUGH
NORTHEAST INDIANA AND NORTHWEST OHIO HAS PRODUCED THUNDERSTORM WIND
GUSTS BETWEEN 60 MPH AND 80 MPH. THIS LINE IS EXPECTED TO MOVE INTO
CENTRAL OHIO AROUND 10 PM EDT.

IF SEVERE WEATHER THREATENS YOUR AREA...GO TO AN INTERIOR ROOM ON
THE LOWER FLOOR AND STAY AWAY FROM WINDOWS.  STAY TUNED TO NOAA
WEATHER RADIO OR THE MEDIA FOR FURTHER UPDATES.

.END/SITES
Local storm report, Jul 19, 7:48 PM EDT, 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
748 PM EDT SUN JUL 19 1998

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

0740 PM    CELINA                    OH   WIND DAMAGE
07/19/98   MERCER                         TREES DOWN ACROSS THE CITY
Local storm report, Jul 19, 7:49 PM EDT, 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
749 PM EDT SUN JUL 19 1998

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

0747 PM    MENDON                    OH   WIND DAMAGE
07/19/98   MERCER                         LARGE TREE LIMBS DOWN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 8:04 PM EDTSevere Thunderstorm WarningILNLogan, Shelby61 min
Jul 19, 8:04 PM EDTSevere Thunderstorm WarningILNDarke61 min
Jul 19, 8:14 PM EDTTornado WarningILNMercer36 min
Jul 19, 8:34 PM EDTTornado WarningILNShelby31 min
Jul 19, 8:38 PM EDTSevere Thunderstorm WarningILNDelaware, Union62 min
Jul 19, 8:44 PM EDTSevere Thunderstorm WarningILNChampaign, Miami61 min
Jul 19, 8:57 PM EDTSevere Thunderstorm WarningILNDarke, Mercer63 min
Jul 19, 9:08 PM EDTSevere Thunderstorm WarningILNClark, Madison62 min
Jul 19, 9:08 PM EDTSevere Thunderstorm WarningILNFranklin62 min
Jul 19, 9:30 PM EDTSevere Thunderstorm WarningILNLicking60 min
Jul 19, 9:47 PM EDTSevere Thunderstorm WarningILNMiami, Montgomery63 min
Jul 19, 9:51 PM EDTSevere Thunderstorm WarningILNGreene64 min
Jul 19, 9:53 PM EDTSevere Thunderstorm WarningILNFairfield, Pickaway62 min
Jul 19, 9:55 PM EDTSevere Thunderstorm WarningILNPreble60 min
Jul 19, 10:13 PM EDTSevere Thunderstorm WarningILNFayette62 min
Jul 19, 10:18 PM EDTSevere Thunderstorm WarningILNButler, Hamilton62 min
Jul 19, 10:24 PM EDTSevere Thunderstorm WarningILNMadison46 min
Jul 19, 10:44 PM EDTSevere Thunderstorm WarningILNClinton, Warren66 min
Jul 19, 10:57 PM EDTSevere Thunderstorm WarningILNPickaway, Ross78 min
Jul 19, 11:03 PM EDTSevere Thunderstorm WarningILNClermont77 min
Jul 19, 11:03 PM EDTSevere Thunderstorm WarningILNBrown82 min
Jul 19, 11:26 PM EDTSevere Thunderstorm WarningILNHighland64 min
Jul 19, 11:43 PM EDTSevere Thunderstorm WarningILNAdams, Pike72 min
Jul 20, 12:07 AM EDTSevere Thunderstorm WarningILNScioto58 min
Jul 20, 1:15 AM EDTFlash Flood WarningILNButler, Preble2 hr
Jul 20, 2:48 AM EDTFlash Flood WarningILNHamilton2 hr
Jul 20, 4:25 AM EDTFlash Flood WarningILNButler2 hr

Nearby

Tornado Warnings in Ohio, 1998Every tornado warning in 1998Tornadoes 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.