Alert archive / Ohio / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 72, NWS Wilmington, OH
NWS Wilmington, OH issued this severe thunderstorm warning at May 20, 1998, 11:05 PM EDT for Clinton County, Ohio. It was in force for 60 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 20, 1998, 11:05 PM EDT (03:05 UTC)
- Expired
- May 21, 1998, 12:05 AM EDT
- In force
- 60 min
- Issued by
- NWS Wilmington, OH
- Area
- Whole counties
County Clinton County, OH
The radar
The Cincinnati radar (KILN), 1 km from the middle of the area, began a volume at 03:05 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 20, 7:45 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 3.1 hours before the alert went out and 2 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.
- Mixed-layer CAPE
- 1019 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 1461 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.7
The text
As transmitted, in the capitals the NWS used until 2016.
374
WUUS01 KILN 210306 RRA
SVRILN
OHC027-210405-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
1105 PM EDT WED MAY 20 1998
THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A
*SEVERE THUNDERSTORM WARNING FOR...
CLINTON COUNTY IN SOUTHWESTERN OHIO.
* EFFECTIVE UNTIL 1205 AM EDT.
* AT 1104 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED A SEVERE THUNDERSTORM 16 MILES NORTHWEST OF WILMINGTON
MOVING SOUTHEAST AT 30 MPH.
* SOME LOCATIONS AFFECTED...
I-71 AT MILE MARKER 45 BY 1120 PM EDT..
PORT WILLIAM BY 1125 PM EDT..
WILMINGTON BY 1130 PM EDT..
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS... EXTREMELY INTENSE
LIGHTNING IS ALSO LIKELY WITH THIS STORM. IF OUTDOORS... STAY
AWAY FROM TALL OBJECTS.
WILKINSONWhat 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 20, 9:02 PM EDT, 2 hours 3 minutes earlier.
Area forecast discussion, May 20, 9:02 PM EDT, 2 hours 3 minutes before
FORECAST COORDINATION MESSAGE NATIONAL WEATHER SERVICE WILMINGTON OH 902 PM EDT WED MAY 20 1998 00Z SFC ANALYSIS INDICATED A FRONT ON FAR NRN FRINGE OF FA. SOUTH OF THE FNT AN AREA OF LWR 70S DEWPOINTS WERE LOCATED ACROSS CNTRL IN AND SWRN OH. KILN 88D SHOWED AN AREA OF TSRA MOVG ALONG THE FNT TOWARD THE NRN MIAMI VLY. XPCT THIS ACTIVITY TO MOVE ALONG THE FNT AND STAY N OF THE HIGHER INSTABILITY OVR SRN FA. WL NEED TO KEEP SCT SHRA/TSRA IN THE FCST. FNT SHOULD DROP SLOWLY SWD TONIGHT BUT WITH CURRENT DEWPOINTS SUGGEST RAISING TEMPS OVR SRN FA AT LEAST A CAT. WILKINSON
In the hours before
Special weather statement, May 20, 6:50 PM EDT, 4 hours 15 minutes before
KYZ089-090-094>100-210300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 650 PM EDT WED MAY 20 1998 THE SEVERE THUNDERSTORM WATCH FOR MUCH OF NORTHERN KENTUCKY HAS BEEN CANCELED. A LINE OF THUNDERSTORMS WITH DAMAGING WINDS PASSED FROM LOUISVILLE TO JUST SOUTH OF LEXINGTON LATE THIS AFTERNOON. NORTHERN KENTUCKY REMAINED NORTH OF THESE SEVERE STORMS. SCATTERED THUNDERSTORMS ARE STILL POSSIBLE THIS EVENING AND TONIGHT BUT SEVERE STORMS ARE NO LONGER EXPECTED. WILKINSON
Special weather statement, May 20, 6:50 PM EDT, 4 hours 15 minutes before
KYZ089-090-094>100-210300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 650 PM EDT WED MAY 20 1998 THE SEVERE THUNDERSTORM WATCH FOR MUCH OF NORTHERN KENTUCKY HAS BEEN CANCELED. A LINE OF THUNDERSTORMS WITH DAMAGING WINDS PASSED FROM LOUISVILLE TO JUST SOUTH OF LEXINGTON LATE THIS AFTERNOON. NORTHERN KENTUCKY REMAINED NORTH OF THESE SEVERE STORMS. SCATTERED THUNDERSTORMS ARE STILL POSSIBLE THIS EVENING AND TONIGHT BUT SEVERE STORMS ARE NO LONGER EXPECTED. WILKINSON
The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 10:33 PM EDT | Severe Thunderstorm Warning | ILN | Montgomery | 57 min |
| May 20, 10:53 PM EDT | Severe Thunderstorm Warning | ILN | Greene | 57 min |
| May 21, 12:34 AM EDT | Severe Thunderstorm Warning | ILN | Pike | 61 min |
| May 21, 1:04 AM EDT | Severe Thunderstorm Warning | ILN | Scioto | 56 min |
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.