Alert archive / Ohio / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 79, NWS Wilmington, OH
NWS Wilmington, OH issued this severe thunderstorm warning at Jun 21, 1997, 8:48 PM EDT for Auglaize County, Ohio. It was in force for 62 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 21, 1997, 8:48 PM EDT (00:48 UTC)
- Expired
- Jun 21, 1997, 9:50 PM EDT
- In force
- 62 min
- Issued by
- NWS Wilmington, OH
- Area
- Whole counties
County Auglaize County, OH
The radar
The Cincinnati radar (KILN), 131 km from the middle of the area, began a volume at 00:49 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 21, 9:30 PM EDT | Thunderstorm Wind 50 | Wapakoneta, OH | Numerous trees and power lines 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 21, 6:15 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.8 hours before the alert went out and 131 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
- 1325 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 1233 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 152 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
815 WUUS01 KILN 220047 RRA SVRILN OHC011-220150- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE WILMINGTON OH 848 PM EDT SAT JUN 21 1997 THE NATIONAL WEATHER SERVICE IN WILMINGTON OH HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 950 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN WEST CENTRAL OHIO ...AUGLAIZE COUNTY AT 845 PM EDT...WEATHER SERVICE RADAR INDICATED A POSSIBLE SEVERE THUNDERSTORM JUST WEST OF ST. MARYS IN WESTERN AUGLAIZE COUNTY. THIS THUNDERSTORM HAD THE POTENTIAL TO PRODUCE DAMAGING WINDS IN EXCESS OF 55 MPH AND TORRENTIAL RAIN. THE THUNDERSTORM SHOULD REACH WAPAKONETA BY 900 PM EDT. THE STORM WAS MOVING EAST NORTHEAST AT 20 MPH. IF YOU ARE IN THE PATH OF THIS STORM...MOVE INSIDE A STRONG BUILDING. STAY AWAY FROM WINDOWS SINCE THEY CAN EASILY SHATTER IN SEVERE THUNDERSTORM WINDS. DO NOT USE TELEPHONES OR APPLIANCES UNLESS ABSOLUTELY NECESSARY UNTIL THIS STORM HAS PASSED. DIAN
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 21, 3:15 PM EDT, 5 hours 33 minutes earlier.
Area forecast discussion, Jun 21, 3:15 PM EDT, 5 hours 33 minutes before
FORECAST COORDINATION MESSAGE NATIONAL WEATHER SERVICE WILMINGTON OH 315 PM EDT SAT JUN 21 1997 LTST SFC ANLYS SHWS PREVIOUS BNDRYS WEAKENING OR DIFFICULT TO FIND. ACTIVITY OVR SRN IN/NRN KY DVLPED ALNG BNDRY...BUT LOOKS LIKE THIS IS ABOUT IT AS FAR AS TRIGGER MECHANISMS GO. KEEPING AN EYE OUT FOR ADDTL BNDRY DVLPMT...BUT IF NONE DVLP ILN FA NOT LIKELY TO SEE ANY STRONG CONVECTION...LET ALONE SVR. BIGGEST CONCERN ATTM IS HEAVY RAIN AS TSTMS ARE VRY SLOW MOVG. BIGGEST THREAT APRS TO BE IN NRN KY PTN OF ILN FA FOR PSBL FLOODING WTH THIS BNDRY INDUCED CONVECTION. REST OF FA JUST SHUD SE ISOLD TO WIDELY SCT SHRA OR EVEN TSRA. LOOKING AT PCPN EFFICIENCY AND MCS POTL...APRS BEST THETA E AXIS...JET INTERACTION AND MOISTURE CONVERGENCE POINTS TWD CNTRL IN INTO NW OH AND LWR MI. IF MCS DOES DVLP...GRTST THREAT APRS TO BE LIMA AREA OF ILN FA. NGM REALLY DRIES OUT AND STABILIZES OH VLY FOR SUN...MAYBE JUST SOME REMAINING DVLPMNT ESPCY CNTRL AND S CNTRL OH. ETA DESTABILIZES AREA AGAIN FOR SUN AND KEEPS AREA MOIST. PREFER SOME COMPROMISE BTWN THE 2...BUT LEANING MORE TOWARD NGM. DAY 069/088/068 431 CVG 070/089/068 531 CMH 070/090/069 331 DIAN
In the hours before
Special weather statement, Jun 21, 5:03 PM EDT, 3 hours 45 minutes before
INZ050-058-059-066-073>075-080-OHZ015-016-024>026-034-035- 042>046-051>056-060>065-070>073-077-078-KYZ091>093-220400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 500 PM EDT (400 PM EST) SAT JUN 21 1997 ...SEVERE THUNDERSTORMS POSSIBLE THIS EVENING... VERY WARM AND UNSTABLE AIR ACROSS THE UPPER OHIO VALLEY WILL COMBINE WITH ABUNDANT MOISTURE AND INCREASE THE POTENTIAL FOR SEVERE THUNDERSTORM ACTIVITY INTO THIS EVENING ACROSS MUCH OF OHIO AND FAR NORTHERN KENTUCKY THROUGH TONIGHT. THE GREATEST POTENTIAL FOR SEVERE THUNDERSTORMS EXISTS ACROSS EASTERN INDIANA AND WESTERN OHIO...AND AS FAR WEST AND SOUTH AS CENTRAL OHIO AND EXTREME NORTHERN KENTUCKY. CITIES INCLUDED IN THE SEVERE THUNDERSTORM OUTLOOK AREA INCLUDE... VAN WERT...LIMA...DAYTON...SPRINGFIELD...COLUMBUS AND CINCINNATI IN OHIO...AS WELL AS RICHMOND AND BROOKVILLE INDIANA AND COVINGTON KENTUCKY. THE MAIN THREAT FROM THUNDERSTORMS THIS EVENING WILL BE DAMAGING WINDS. AS THE THUNDERSTORMS WILL BE SLOW MOVING...THE POTENTIAL IS ALSO HIGH FOR HEAVY RAIN AND FLOODING. IF YOU ARE PLANNING OUTDOOR ACTIVITIES INTO THIS EVENING...LISTEN TO NOAA WEATHER RADIO FOR THE LATEST INFORMATION ON WEATHER CONDITIONS ACROSS THE REGION. SKYWARN AMATEUR RADIO OPERATORS MAY NEED TO BE ACTIVATED LATER THIS EVENING. DIAN
Special weather statement, Jun 21, 6:12 PM EDT, 2 hours 36 minutes before
INZ050-058-059-OHZ015-016-024>026-034-035-042>044-051-060-061- 220315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 613 PM EDT (513 PM EST) SAT JUN 21 1997 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 11 PM EDT (10 PM EST) FOR WEST CENTRAL OHIO AND EAST CENTRAL INDIANA... VERY WARM AND MOIST AIR OVER THE UPPER OHIO VALLEY COMBINED WITH ABUNDANT LOW LEVEL MOISTURE TO INCREASE THE THREAT FOR SEVERE THUNDERSTORMS THROUGH 11 PM EDT (10 PM EST) FOR WEST CENTRAL OHIO AND EAST CENTRAL INDIANA. CITIES INCLUDED IN THE WATCH INCLUDE...RICHMOND INDIANA...VAN WERT...LIMA...ST MARYS...KENTON...AND DAYTON OHIO. A LINE OF THUNDESTORMS WILL PUSH FROM WEST TO EAST THROUGH EASTERN INDIANA AND WESTERN OHIO THROUGH THE EVENING HOURS. THESE THUNDERSTORMS HAVE THE POTENTIAL TO PRODUCE SEVERE THUNDERSTORM WINDS IN EXCESS OF 55 MPH AND TORRENTIAL RAIN. STAY TUNED TO NOAA WEATHER RADIO OR THE COMMERCIAL MEDIA FOR POSSIBLE WARNINGS OR ADDITIONAL STATEMENTS. IT IS DANGEROUS TO BE OUTDOORS WHILE A SEVERE THUNDERSTORM IS IN PROGRESS. DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY LIGHTNING ARE ALL POSSIBLE. SEEK SHELTER IN A BUILDING OR A VEHICLE. IF YOU ARE CAUGHT IN THE OPEN...STAY AWAY FROM TOWERS AND LARGE TREES. CROUCH NEAR THE GROUND AND COVER YOUR HEAD. DIAN
The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 9:18 PM EDT | Severe Thunderstorm Warning | ILN | Allen | 27 min |
| Jun 21, 9:26 PM EDT | Severe Thunderstorm Warning | ILN | Hardin | 34 min |
Nearby
Severe Thunderstorm Warnings in Ohio, 1997Every severe thunderstorm warning in 1997
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.