Alert archive / Ohio / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 258, NWS Wilmington, OH

July 19, 1998Auglaize County, Hardin County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jul 19, 1998, 7:28 PM EDT for Auglaize County, Hardin County, Ohio. It was in force for 67 min. 2 reports 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: Jul 19, 1998, 7:28 PM EDT (23:28 UTC)
Expired: Jul 19, 1998, 8:35 PM EDT
In force: 67 min
Issued by: NWS Wilmington, OH
Area: Whole counties

Counties Auglaize County, OH, Hardin County, OH

The radar

The Cincinnati radar (KILN), 133 km from the middle of the area, began a volume at 23:30 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
Jul 19, 7:50 PM EDT	Thunderstorm Wind 60	Countywide, OH	Many trees and large limbs downed due to estimated wind gusts of 60-80 mph.
Jul 19, 7:50 PM EDT	Thunderstorm Wind 60	Roundhead, OH	Trees and large limbs 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
Jul 19, 4:15 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.5 hours before the alert went out and 132 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: 585 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 950 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 132 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.2

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 Jul 19, 3:05 AM EDT, 16 hours 23 minutes earlier.

Area forecast discussion, Jul 19, 3:05 AM EDT, 16 hours 23 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 21 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 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, 25 minutes 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

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 7:14 PM EDT	Severe Thunderstorm Warning	ILN	Mercer	61 min
Jul 19, 12:18 PM EDT	Severe Thunderstorm Warning	ILN	Dearborn	37 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.