Alert archive / Ohio / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 302, NWS Wilmington, OH

August 25, 1998Miami County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Aug 25, 1998, 3:54 PM EDT for Miami County, Ohio. It was in force for 46 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: Aug 25, 1998, 3:54 PM EDT (19:54 UTC)
Expired: Aug 25, 1998, 4:40 PM EDT
In force: 46 min
Issued by: NWS Wilmington, OH
Area: Whole counties

County Miami County, OH

The radar

The Cincinnati radar (KILN), 79 km from the middle of the area, began a volume at 19:57 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
Aug 25, 4:03 PM EDT	Hail 0.75	Bloomer, OH

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
Aug 25, 2:30 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.9 hours before the alert went out and 78 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: 369 J/kg
Mixed-layer CIN: -244 J/kg
Mixed-layer LCL: 1371 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 141 m²/s²
0-3 km storm-relative helicity: 120 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Aug 25, 3:36 PM EDT, 18 minutes earlier.

Area forecast discussion, Aug 25, 3:36 PM EDT, 18 minutes before

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In the hours before

Special weather statement, Aug 25, 10:48 AM EDT, 5 hours 6 minutes before

OHZ026-034-035-042>046-051>056-060>065-070>074-077>082-088-INZ
050-058-059-066-073>075-080-KYZ091>093-252100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
1048 AM EDT TUE AUG 25 1998

...SEVERE THUNDERSTORMS POSSIBLE THIS AFTERNOON AND EVENING...

A COLD FRONT IS EXPECTED TO DROP SOUTHWARD ACROSS THE OHIO VALLEY
LATE THIS AFTERNOON AND INTO THE EVENING HOURS.  AHEAD OF THE FRONT
THE ATMOSPHERE WILL BECOME VERY UNSTABLE. SCATTERED THUNDERSTORMS
WILL DEVELOP AND MOVE INTO WEST-CENTRAL OHIO DURING THE EARLY
AFTERNOON HOURS AND THEN SPREAD INTO THE MIAMI AND WHITEWATER
VALLEYS AND CENTRAL OHIO BY MID AFTERNOON.   OVER FAR SOUTHERN OHIO
...SOUTHEASTERN INDIANA AND EXTREME NORTHERN KENTUCKY...SCATTERED
THUNDERSTORMS CAN BE EXPECTED BY LATE AFTERNOON.

THE MAIN THREAT FROM THESE STORMS WILL BE DAMAGING WINDS IN EXCESS
OF 60 MPH.  HAIL GREATER THAN 3/4 OF AN INCH IN DIAMETER IS ALSO
POSSIBLE.

SPOTTER ACTIVATION IS POSSIBLE THIS AFTERNOON AND EVENING.

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES.

WILKINSON

Special weather statement, Aug 25, 2:37 PM EDT, 1 hour 17 minutes before

OHZ026-034-035-042>046-051>056-060>065-070>074-077-078-080-082-260100-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
237 PM EDT TUE AUG 25 1998

...SEVERE THUNDERSTORM WATCH NUMBER 801 IS IN EFFECT UNTIL 9 PM EDT
FOR WEST CENTRAL OHIO...THE MIAMI VALLEY...CENTRAL OHIO AND MOST OF
EXTREME SOUTHERN OHIO...

SOME CITIES IN THE WATCH INCLUDE CINCINNATI...COLUMBUS...DAYTON...
LANCASTER...SPRINGFIELD AND WAPOKENTA.

STRONG TO SEVERE THUNDERSTORMS RUNNING ACROSS NORTHERN
OHIO...WESTWARD INTO EXTREME NORTHEAST INDIANA...WILL MOVE SOUTHEAST
AS THE AFTERNOON AND EVENING PROGRESSES.

DAMAGING WINDS ARE THE MAIN THREAT FROM THESE STORMS...WITH GUSTS UP
TO 70 MPH POSSIBLE.  IN ADDITION...LARGE HAIL...FREQUENT LIGHTNING
AND BRIEF HEAVY RAINS ARE POSSIBLE WITH ANY OF THESE STORMS.

.END/SITES

Local storm report, Aug 25, 2:52 PM EDT, 1 hour 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
252 PM EDT TUE AUG 25 1998

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

0225 PM    KENTON                    OH   1.75 INCH HAIL
08/25/98   HARDIN                         GOLFBALL SIZE HAIL AND
                                          FIVE LARGE TREES DOWN 5
                                          MILES E OF KENTON

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 24, 8:23 PM EDT	Severe Thunderstorm Warning	ILN	Greene	32 min
Aug 25, 2:03 PM EDT	Severe Thunderstorm Warning	ILN	Hardin	42 min
Aug 25, 3:24 PM EDT	Severe Thunderstorm Warning	ILN	Logan	46 min
Aug 25, 3:34 PM EDT	Tornado Warning	ILN	Licking	66 min
Aug 25, 3:35 PM EDT	Severe Thunderstorm Warning	ILN	Shelby	35 min
Aug 25, 3:39 PM EDT	Severe Thunderstorm Warning	ILN	Darke	46 min
Aug 25, 3:39 PM EDT	Severe Thunderstorm Warning	ILN	Delaware	61 min
Aug 25, 3:47 PM EDT	Severe Thunderstorm Warning	ILN	Champaign	63 min
Aug 25, 4:08 PM EDT	Severe Thunderstorm Warning	ILN	Union	47 min
Aug 25, 4:17 PM EDT	Severe Thunderstorm Warning	ILN	Franklin	63 min
Aug 25, 4:19 PM EDT	Severe Thunderstorm Warning	ILN	Madison	66 min
Aug 25, 4:26 PM EDT	Severe Thunderstorm Warning	ILN	Licking	59 min
Aug 25, 4:31 PM EDT	Severe Thunderstorm Warning	ILN	Clark	64 min
Aug 25, 5:13 PM EDT	Severe Thunderstorm Warning	ILN	Pickaway	62 min
Aug 25, 5:18 PM EDT	Severe Thunderstorm Warning	ILN	Fayette	62 min
Aug 25, 5:44 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield	61 min
Aug 25, 5:49 PM EDT	Severe Thunderstorm Warning	ILN	Montgomery	61 min
Aug 25, 6:00 PM EDT	Severe Thunderstorm Warning	ILN	Hocking	65 min
Aug 25, 6:19 PM EDT	Severe Thunderstorm Warning	ILN	Ross	76 min
Aug 25, 6:37 PM EDT	Severe Thunderstorm Warning	ILN	Hamilton	33 min
Aug 25, 7:16 PM EDT	Severe Thunderstorm Warning	ILN	Clermont	29 min
Aug 25, 7:19 PM EDT	Severe Thunderstorm Warning	ILN	Pike	51 min
Aug 25, 7:25 PM EDT	Severe Thunderstorm Warning	ILN	Brown	30 min
Aug 25, 7:28 PM EDT	Severe Thunderstorm Warning	ILN	Ohio	32 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.