Alert archive / Ohio / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 111, NWS Wilmington, OH

May 31, 1998Ross County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at May 31, 1998, 8:16 PM EDT for Ross County, Ohio. It was in force for 34 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: May 31, 1998, 8:16 PM EDT (00:16 UTC)
Expired: May 31, 1998, 8:50 PM EDT
In force: 34 min
Issued by: NWS Wilmington, OH
Area: Whole counties

County Ross County, OH

The radar

The Cincinnati radar (KILN), 66 km from the middle of the area, began a volume at 00:18 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
May 31, 8:40 PM EDT	Thunderstorm Wind 50	Bainbridge, 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
May 31, 4:00 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.3 hours before the alert went out and 65 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: 1429 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 1011 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 121 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 31, 2:40 PM EDT, 5 hours 36 minutes earlier.

Area forecast discussion, May 31, 2:40 PM EDT, 5 hours 36 minutes before

FORECAST COORDINATION MESSAGE
NATIONAL WEATHER SERVICE WILMINGTON OH
240 PM EDT SUN MAY 31 1998

18Z KILN RAOB AVAILABLE ON AFOS...CAPE >4000 AND WK H8 CAP WL BE
OVERCOME SHORTLY BY SFC HEATING...SO CONDITIONS IN PLACE FOR SVR WX
OUTBREAK ACRS CWA THIS AFTN/EVE. SVR TSTMS NOW FIRING ALONG PRE-FRONTAL
TROF JUST AHEAD OF COLD FRNT... AND TSTMS INTENSIFYING ACRS CNTL IN
WITHIN EXTREMELY UNSTABLE AIRMASS.

COLD FRNT WL STILL BE N OF OH RVR BY 0Z AND WL LIKELY NOT CLR S/E CWA
COUNTIES BEFORE MIDNITE. TSTMS WL END ACRS NW COUNTIES BY LATE AFTN
BUT WL CONT ACRS CNTL S SECTIONS INTO THIS EVE...SO CATEGORICAL POPS
IN ORDER CNTL EARLY EVE AND S TIL 4Z-6Z.

COOLER...DRIER AIRMASS WILL THEN PUSH INTO REGION OVERNITE AND WL
REMAIN IN PLACE THRU MON. HI TMPS MON WL ACTUALLY BE BLO NORMAL FOR JUN
1.

NEXT SYSTEM WL APPROACH QUICKLY IN FAST FLW REGIME LATER MON NITE. SW
FLW/WAA WL INTENSIFY...AND CONDITIONS APPR FAVORABLE FOR ANOTHER MCS TO
DEVELOP ACRS GREAT LAKES AND PUSH THROUGH OR JUST N OF XTRM N CWA
COUNTIES EARLY TUE AM...SO CHC POPS IN ORDER ACRS FAR N LATE MON NITE.
FARTHER S...MSTR CONVERGC IMPRESSIVE AND INSTABILITY INCR WITHIN N/S
BAND...INTO W CWA COUNTIES BY 12Z TUE...SHRA/TSRA CUD DEVELOP WITHIN
THIS WAA BAND. HOWEVER...DEEPEST MSTR FOCUSED AT MID LVLS...AND
MAY ONLY PRODUCE SPRINKLES/FEW -SHRA WITH RELATIVELY DRY AIR AT SFC.

TUE...MANY SIMILARITIES TO TDAS SCENARIO...EXCEPT SFC DWPTS SHUD BE
SOMEWHAT LOWER. WARM SECTOR WL SPREAD INTO CWA ON STRONG SW BREEZE...
AND COLD FRNT WL THEN PUSH INTO REGION DURG AFTN/EVE AND WL LIKELY
PRODUCE ANOTHER ROUND OF STRONG/SVR TSTMS.

CVG 57/73/59/85 8026
DAY 52/71/56/81 7026
CMH 53/72/54/82 7016
PRT 60/75/54/86 8015

ROWLEY

In the hours before

Local storm report, May 31, 7:19 PM EDT, 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
719 PM EDT SUN MAY 31 1998

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

0558 PM    CHICKASAW                 OH   .75 INCH HAIL
05/31/98   MERCER

0614 PM    WAPAKONETA                OH   1.75 INCH HAIL
05/31/98   AUGLAIZE

0616 PM    BOTKINS                   OH   1.5 INCH HAIL
05/31/98   SHELBY

Local storm report, May 31, 7:19 PM EDT, 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
719 PM EDT SUN MAY 31 1998

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

0558 PM    CHICKASAW                 OH   .75 INCH HAIL
05/31/98   MERCER

0614 PM    WAPAKONETA                OH   1.75 INCH HAIL
05/31/98   AUGLAIZE

0616 PM    BOTKINS                   OH   1.5 INCH HAIL
05/31/98   SHELBY

Local storm report, May 31, 7:23 PM EDT, 53 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
723 PM EDT SUN MAY 31 1998

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

0641 PM                              OH   .75 INCH HAIL
05/31/98   LOGAN                          AT BELL CENTER HAIL LASTED
                                          OVER 5 MINS.

Local storm report, May 31, 7:23 PM EDT, 53 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
723 PM EDT SUN MAY 31 1998

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

0641 PM                              OH   .75 INCH HAIL
05/31/98   LOGAN                          AT BELL CENTER HAIL LASTED
                                          OVER 5 MINS.

Special weather statement, May 31, 8:15 PM EDT, 1 minute before

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Special weather statement, May 31, 8:15 PM EDT, 1 minute before

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<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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      <p id="message2">
        Please try again in a few minutes.
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The office that day

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

Issued	Product	Office	Counties	Lasted
May 31, 8:41 PM EDT	Severe Thunderstorm Warning	ILN	Pike	34 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.