Alert archive / Ohio / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 56, NWS Wilmington, OH
NWS Wilmington, OH issued this severe thunderstorm warning at May 18, 1997, 2:46 PM EDT for Allen County, Hardin County, Ohio. It was in force for 29 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 18, 1997, 2:46 PM EDT (18:46 UTC)
- Expired
- May 18, 1997, 3:15 PM EDT
- In force
- 29 min
- Issued by
- NWS Wilmington, OH
- Area
- Whole counties
Counties Allen County, OH, Hardin County, OH
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 18, 2:50 PM EDT | Hail 1.75 | Roundhead, 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 |
|---|---|---|---|
| May 18, 2:30 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 6.8 hours before the alert went out and 143 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
- 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
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KILN 181847 SVRILN OHC003-065-181915- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE WILMINGTON OH 246 PM EDT SUN MAY 18 1997 THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 315 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN WEST CENTRAL OHIO ...HARDIN COUNTY AT 245 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM APPROACHING SOUTHWESTERN HARDIN COUNTY. THIS STORM WAS MOVING NORTHEAST AT 30 MPH AND WILL AFFECT ROUNDHEAD AND AREAS WEST OF KENTON. LARGE HAIL AND STRONG WINDS ARE POSSIBLE WITH THIS STORM. SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. WILKINSON
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, 5 hours 16 minutes earlier.
Area forecast discussion, May 18, 9:30 AM EDT, 5 hours 16 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 24 minutes 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
Special weather statement, May 18, 2:35 PM EDT, 11 minutes before
INZ050-OHZ015-016-024>026-034-035-042-044-045-051>054-060>062-190300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 234 PM EDT (134 PM EST) SUN MAY 18 1997 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PARTS OF EAST-CENTRAL INDIANA AND MUCH OF WESTERN OHIO... SOME CITIES IN THE WATCH AREA INCLUDE DAYTON...SPRINGFIELD AND LIMA. VERY UNSTABLE CONDITIONS HAVE DEVELOPED ACROSS THE WATCH AREA THIS AFTERNOON. A STRONG UPPER LEVEL SYSTEM APPROACHING THE AREA WILL HELP THUNDERSTORMS THAT WERE DEVELOPING THIS AFTERNOON TO QUICKLY BECOME SEVERE. THESE STORMS WILL BE CAPABLE OF PRODUCING WIND DAMAGE AND LARGE HAIL. STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES. 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, 2:23 PM EDT | Severe Thunderstorm Warning | ILN | Auglaize | 37 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, 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.