Alert archive / Ohio / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 196, NWS Wilmington, OH

June 19, 1998Montgomery County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jun 19, 1998, 2:09 AM EDT for Montgomery County, Ohio. It was in force for 66 min. 1 report 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: Jun 19, 1998, 2:09 AM EDT (06:09 UTC)
Expired: Jun 19, 1998, 3:15 AM EDT
In force: 66 min
Issued by: NWS Wilmington, OH
Area: Whole counties

County Montgomery County, OH

The radar

The Cincinnati radar (KILN), 55 km from the middle of the area, began a volume at 06:08 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
Jun 19, 2:50 AM EDT	Thunderstorm Wind 50	Countywide, OH	Numerous trees downed.

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
Jun 19, 12:00 AM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 6.2 hours before the alert went out and 55 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: 3764 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 1013 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 113 m²/s²
0-3 km storm-relative helicity: 185 m²/s²
Significant tornado parameter: 2.1
Supercell composite: 16.9

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 Jun 19, 1:44 AM EDT, 25 minutes earlier.

Area forecast discussion, Jun 19, 1:44 AM EDT, 25 minutes before

FORECAST COORDINATION MESSAGE
NATIONAL WEATHER SERVICE WILMINGTON OH
145 EDT FRI JUN 19 1998

INITIAL LINE OF TSTMS MOVING THRU IND...PRODUCING WIND DAMAGE...NOW
ENTERING CWA...WHERE SFC DWPTS WELL INTO 70S. ANOTHER BAND OF TSTMS
ENTERING W IN FROM IL...ALSO HEADED TWD CWA...A BIT S OF INITIAL
LINE. ZONES WL REQUIRE EARLY PERIOD WITH CATEGORICAL POPS AND MENTION OF
SVR. ALSO...FLASH FLOOD GUIDANCE REMAINS LOW. HOWEVER...TSTMS LINED UP
PERPENDICULAR TO STEERING FLOW...SO HVY DOWNPOURS SHUD NOT LAST TOO
LONG IN ANY GIVEN LOCATION...AND FLOODING PROBLEMS SHUD REMAIN
LOCALIZED.

AFTER 12Z...POPS WL GRADUALLY DECR FROM W TO E...AND CHC FOR TSTMS SHUD
END ACRS W BY EARLY AFTN AND ACRS E DURG MID AFTN AS DRIER AIR SPREADS
INTO REGION.

HIGH PRESSURE WL PROVIDE CLEARING SKIES TONIGHT AND A RAIN-FREE DAY
SAT. NEXT CHC FOR SHRA/TSRA SAT NITE/EARLY SUN.

WL NOT STRAY FAR FROM NGM MOS TMPS.

CVG 88/64/92 500
DAY 88/64/91 500
CMH 88/64/92 700

ROWLEY

In the hours before

Special weather statement, Jun 18, 8:42 PM EDT, 5 hours 27 minutes before

INZ050-058-059-066-073>075-080-KYZ089>099-OHZ034-035-042>044-
051>053-060>062-070>072-077>080-190640-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
843 PM EDT (743 PM EST) THU JUN 18 1998

...SEVERE THUNDERSTORMS POSSIBLE OVERNIGHT...

SEVERE THUNDERSTORMS ARE POSSIBLE OVERNIGHT ACROSS WESTERN OHIO...
SOUTHEAST INDIANA AND NORTHWESTERN KENTUCKY.  VERY STRONG WINDS...
LARGE HAIL AND ISOLATED TORNADOES COULD OCCUR ACROSS THE REGION.
THE MAIN THREAT FOR THUNDERSTORMS WILL BE AFTER MIDNIGHT.

A STRONG SYSTEM MOVING INTO THE OHIO VALLEY WILL ENCOUNTER VERY
UNSTABLE AIR ALREADY OVER THE REGION. THUNDERSTORMS ARE POSSIBLE
THROUGH THE MID MORNING HOURS.

STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST INFORMATION
CONCERNING THE POSSIBILITY OF SEVERE THUNDERSTORMS.  SPOTTER
AND AMATUER RADIO ACTIVATION MAY BE REQUIRED OVERNIGHT.

FARINA

Special weather statement, Jun 19, 12:03 AM EDT, 2 hours 6 minutes before

INZ050-058-059-066-073>075-080-KYZ089>093-OHZ026-034-035-042>045-
051>053-060>062-070>072-077-078-190900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
1203 AM EDT (1103 PM EST) FRI JUN 19 1998

...SEVERE THUNDERSTORM WATCH IN EFFECT THROUGH 5 AM EDT FOR
   SOUTHEAST INDIANA - NORTHWEST KENTUCKY AND WESTERN OHIO...

SEVERE THUNDERSTORMS ARE POSSIBLE OVERNIGHT ACROSS SOUTHEAST
INDIANA...NORTHWEST KENTUCKY AND WESTERN OHIO INCLUDING THE CITIES
OF CINCINNATI...DAYTON...RICHMOND AND WAPAKONETA.  A SEVERE
THUNDERSTORM WATCH IS IN EFFECT FOR THIS AREA THROUGH 5 AM EDT.
DAMAGING WIND GUSTS WILL BE THE MAIN THREAT FROM THUNDERSTORMS
OVERNIGHT.

STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST SHORT TERM
FORECASTS AND ANY POSSIBLE WARNINGS FROM THE NATIONAL WEATHER
SERVICE.

FARINA

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 1:55 AM EDT	Severe Thunderstorm Warning	ILN	Butler, Darke, Preble	65 min
Jun 19, 1:55 AM EDT	Severe Thunderstorm Warning	ILN	Mercer	65 min
Jun 19, 2:09 AM EDT	Severe Thunderstorm Warning	ILN	Hamilton, Warren	66 min
Jun 19, 2:09 AM EDT	Severe Thunderstorm Warning	ILN	Auglaize, Miami, Shelby	66 min
Jun 19, 2:35 AM EDT	Severe Thunderstorm Warning	ILN	Champaign, Clark, Logan	55 min
Jun 19, 2:35 AM EDT	Severe Thunderstorm Warning	ILN	Clinton, Greene	55 min
Jun 19, 2:35 AM EDT	Severe Thunderstorm Warning	ILN	Clermont	55 min
Jun 19, 2:35 AM EDT	Severe Thunderstorm Warning	ILN	Hardin	55 min
Jun 19, 3:07 AM EDT	Severe Thunderstorm Warning	ILN	Brown	68 min
Jun 19, 3:15 AM EDT	Severe Thunderstorm Warning	ILN	Fayette, Highland	45 min
Jun 19, 3:15 AM EDT	Severe Thunderstorm Warning	ILN	Madison, Union	45 min
Jun 19, 2:35 AM EDT	Severe Thunderstorm Warning	ILN	Campbell, Kenton	55 min
Jun 19, 3:07 AM EDT	Severe Thunderstorm Warning	ILN	Gallatin	68 min
Jun 19, 1:27 AM EDT	Severe Thunderstorm Warning	ILN	Fayette, Franklin, Union	63 min
Jun 19, 1:27 AM EDT	Severe Thunderstorm Warning	ILN	Wayne	63 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1998 Every 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.