Alert archive / Ohio / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 67, NWS Wilmington, OH

May 19, 1998Greene County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at May 19, 1998, 10:09 PM EDT for Greene County, Ohio. It was in force for 51 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
May 19, 1998, 10:09 PM EDT (02:09 UTC)
Expired
May 19, 1998, 11:00 PM EDT
In force
51 min
Issued by
NWS Wilmington, OH
Area
Whole counties

County Greene County, OH

The radar

The Cincinnati radar (KILN), 31 km from the middle of the area, began a volume at 02:11 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, 2.2 hours before the alert went out and 30 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 1998-05-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1270 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 1998-05-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
1270 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
1675 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
49 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

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 May 19, 9:07 PM EDT, 1 hour 2 minutes earlier.

Area forecast discussion, May 19, 9:07 PM EDT, 1 hour 2 minutes before
FORECAST COORDINATION MESSAGE
NATIONAL WEATHER SERVICE WILMINGTON OH
907 PM EDT TUE MAY 19 1998

MCS MUCH LARGER THAN IOWA WAS ACROSS THE OH VLY THIS EVENING.  A FEW
LARGE HAIL REPORTS HAVE BEEN RECEIVED SO FAR IN CWA.  AREA 88DS INDICATE
NMRS TSRA OVER IN WHICH WERE MOVG E AND SEWD TOWARD FA.  KILN 00Z
SOUNDING INDICATES THAT WIND DAMAGE COULD BECOME A THREAT AS WELL.
CURRENT FCSTS LOOK GOOD.

WILKINSON

In the hours before

Special weather statement, May 19, 6:44 PM EDT, 3 hours 25 minutes before
INZ050-058-059-200500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
643 PM EDT (543 PM EST) TUE MAY 19 1998

...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR EAST-CENTRAL
   INDIANA UNTIL MIDNIGHT EST...

THIS WATCH INCLUDES RICHMOND...CONNERSVILLE...AND LIBERTY.

THUNDERSTORMS WERE DEVELOPING IN AN VERY UNSTABLE ENVIRONMENT LATE
THIS AFTERNOON ACROSS NORTHERN AND WESTERN INDIANA.  THESE STORMS
HAVE A HISTORY OF LARGE HAIL AND DAMAGING WINDS...AND ARE EXPECTED TO
TRACK INTO EAST-CENTRAL INDIANA AROUND AND AFTER SUNSET.

RESIDENTS OF EAST-CENTRAL INDIANA SHOULD KEEP AN EYE TO THE
NORTHWESTERN SKY AND STAY TUNED TO NOAA WEATHER RADIO.

WILKINSON
Local storm report, May 19, 7:50 PM EDT, 2 hours 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
750 PM EDT TUE MAY 19 1998

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

0747 PM    MONTEZUMA                 OH   .75 INCH HAIL
05/19/98   MERCER                         REPORTED BY SPOTTER
Local storm report, May 19, 8:15 PM EDT, 1 hour 54 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
815 PM EDT TUE MAY 19 1998

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

0814 PM    ROUNDHEAD                 OH   .75 INCH HAIL
05/19/98   HARDIN                         DIME SIZE HAIL
Special weather statement, May 19, 8:19 PM EDT, 1 hour 50 minutes before
OHZ015-016-024>026-034-035-042>046-051>056-060>065-070>074-080-INZ
050-058-059-200500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
819 PM EDT TUE MAY 19 1998

....A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 100 AM EDT (1200
AM EST) FOR WESTERN AND CENTRAL OHIO AND EAST-CENTRAL INDIANA...

ALSO...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 100 AM EDT
(1200 AM EST) FOR RIPLEY COUNTY INDIANA...

SCATTERED THUNDERSTORMS WIVTH A HISTORY OF PRODUCING LARGE HAIL AND
DAMAGING WINDS WILL AFFECT THE WATCH AREA THROUGH THE EVENING HOURS.

RESIDENTS OF THE WATCH AREA SHOULD KEEP AN EYE TO THE SKY AND STAY
TUNED TO NOAA WEATHER RADIO.

WILKINSON
Special weather statement, May 19, 8:19 PM EDT, 1 hour 50 minutes before
OHZ015-016-024>026-034-035-042>046-051>056-060>065-070>074-080-INZ
050-058-059-200500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
819 PM EDT TUE MAY 19 1998

....A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 100 AM EDT (1200
AM EST) FOR WESTERN AND CENTRAL OHIO AND EAST-CENTRAL INDIANA...

ALSO...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 100 AM EDT
(1200 AM EST) FOR RIPLEY COUNTY INDIANA...

SCATTERED THUNDERSTORMS WIVTH A HISTORY OF PRODUCING LARGE HAIL AND
DAMAGING WINDS WILL AFFECT THE WATCH AREA THROUGH THE EVENING HOURS.

RESIDENTS OF THE WATCH AREA SHOULD KEEP AN EYE TO THE SKY AND STAY
TUNED TO NOAA WEATHER RADIO.

WILKINSON
Local storm report, May 19, 9:48 PM EDT, 21 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
948 PM EDT TUE MAY 19 1998

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

0939 PM    SPRINGFIELD               OH   .75 INCH HAIL
05/19/98   CLARK

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 8:00 PM EDTSevere Thunderstorm WarningILNAuglaize60 min
May 19, 8:08 PM EDTSevere Thunderstorm WarningILNHardin57 min
May 19, 8:54 PM EDTSevere Thunderstorm WarningILNDarke56 min
May 19, 9:13 PM EDTSevere Thunderstorm WarningILNClark62 min
May 19, 11:51 PM EDTSevere Thunderstorm WarningILNClermont59 min
May 20, 12:15 AM EDTSevere Thunderstorm WarningILNBrown60 min
May 20, 1:08 AM EDTFlash Flood WarningILNHamilton2 hr

Nearby

Severe Thunderstorm Warnings in Ohio, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.