Alert archive / Ohio / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 55, NWS Wilmington, OH

May 18, 1997Auglaize County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at May 18, 1997, 2:23 PM EDT for Auglaize County, Ohio. It was in force for 37 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 18, 1997, 2:23 PM EDT (18:23 UTC)
Expired: May 18, 1997, 3:00 PM EDT
In force: 37 min
Issued by: NWS Wilmington, OH
Area: Whole counties

County Auglaize County, OH

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 6.4 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.

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: 72 J/kg
Mixed-layer CIN: -147 J/kg
Mixed-layer LCL: 1311 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 114 m²/s²
0-3 km storm-relative helicity: 133 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KILN 181824
SVRILN
OHC011-181900-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
223 PM EDT SUN MAY 18 1997
 
THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  300 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL OHIO
 
   ...AUGLAIZE COUNTY
 
AT 225 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM JUST NORTH OF WAPAKONETA. THIS STORM WAS MOVING NORTHEAST
AT 30 MPH AND IS CAPABLE OF PRODUCING LARGE HAIL AND WIND DAMAGE. THIS
STORM WILL AFFECT AREAS NORTH OF WAPAKONETA.
 
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 TALL TREES. CROUCH NEAR THE GROUND AND COVER YOUR HEAD.
 
 
SW

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 18, 9:30 AM EDT, 4 hours 53 minutes earlier.

Area forecast discussion, May 18, 9:30 AM EDT, 4 hours 53 minutes before

FORECAST COORDINATION MESSAGE
NATIONAL WEATHER SERVICE WILMINGTON OH
929 AM EDT SUN MAY 18 1997

12Z SFC ANALYSIS INDICATED LOW PRES ACROSS THE CORN BELT WITH A WARM
FNT EXTENDING EWD ACROSS CNTRL OH.  THE FNT SHOULD SLOWLY LIFT NWD THRU
THE PM HOURS.  ATMOSPHERE S OF FNT WL BE MODERATELY UNSTABLE AND CAP
SHOULD BE MINIMAL OR NONEXISTENT BY THE TIME H5 S/WV PROGD BY MODELS
APPROACHES LATE THIS PM.  BEST COVERAGE OF TSRA WL BE DAY-CMH AND NWD
BUT SCT STORMS SHOULD DEVELOP FURTHER S.  STORMS WL CONT INTO THE
EVENING HOURS.  SVR STORMS CERTAINLY POSSIBLE.  CURRENT FCST PRECIP AND
TEMPS HANDLE THIS WELL SO NO CHANGES NEEDED.

WILKINSON

In the hours before

Special weather statement, May 18, 10:22 AM EDT, 4 hours 1 minute before

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ015-016-024>026-
034-035-042>046-051>056-060>065-070>074-077>082-088-190000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
1021 AM EDT (921 AM EST) SUN MAY 18 1997

...THERE IS A RISK OF SEVERE WEATHER THIS AFTERNOON AND EVENING ACROSS
WEST CENTRAL OHIO...THE MIAMI AND WHITEWATER VALLEYS...CENTRAL AND
SOUTHERN OHIO...AS WELL AS SOUTHEAST INDIANA AND NORTHERN KENTUCKY...

THE STORM PREDICTION CENTER IN KANSAS CITY ADVISES THAT SEVERE
WEATHER IS POSSIBLE TODAY ACROSS THE OHIO VALLEY REGION. THE RISK OF
SEVERE WEATHER WILL ALSO LAST INTO TONIGHT AND POSSIBLY MONDAY MORNING.
DAMAGING WINDS AND LARGE HAIL ARE POSSIBLE IN THUNDERSTORMS TODAY. THE
GREATEST RISK OF SEVERE WEATHER WILL BE OVER WEST CENTRAL OHIO...AND
THE MIAMI AND WHITEWATER VALLEYS. STAY TUNED TO NOAA WEATHER RADIO
THROUGHOUT THE DAY FOR THE LATEST INFORMATION AND UPDATES FROM THE
NATIONAL WEATHER SERVICE.

THE THUNDERSTORMS FORECASTED FOR TODAY ARE THE RESULT OF WARM MOIST
AIR MOVING INTO THE REGION. A SOUTHWESTERLY FLOW OF AIR AHEAD OF A
PLAINS COLD FRONT WILL BRING THE UNSTABLE AIR IN. THE COLD FRONT
WILL MOVE ACROSS THE REGION ON MONDAY CONTINUING THE THREAT FOR
SEVERE WEATHER.

SPOTTERS AND AMATEUR RADIO OPERATORS MAY NEED TO BE ACTIVATED THIS
AFTERNOON AND TONIGHT.

WILKINSON

The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 3:12 AM EDT	Severe Thunderstorm Warning	ILN	Auglaize	43 min
May 18, 4:13 AM EDT	Severe Thunderstorm Warning	ILN	Delaware	42 min
May 18, 5:11 AM EDT	Severe Thunderstorm Warning	ILN	Delaware	44 min
May 18, 2:46 PM EDT	Severe Thunderstorm Warning	ILN	Allen, Hardin	29 min
May 18, 4:19 PM EDT	Severe Thunderstorm Warning	ILN	Allen	41 min
May 18, 5:00 PM EDT	Severe Thunderstorm Warning	ILN	Clark	30 min
May 18, 5:18 PM EDT	Severe Thunderstorm Warning	ILN	Champaign	27 min
May 18, 5:32 PM EDT	Severe Thunderstorm Warning	ILN	Madison, Union	28 min
May 18, 5:44 PM EDT	Severe Thunderstorm Warning	ILN	Delaware	46 min
May 18, 6:07 PM EDT	Severe Thunderstorm Warning	ILN	Franklin	38 min
May 18, 6:26 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Licking	34 min
May 18, 6:31 PM EDT	Severe Thunderstorm Warning	ILN	Scioto	44 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1997 Every 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; the sounding from the Mesonet's radiosonde archive.