Alert archive / Ohio / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 7, NWS Wilmington, OH
NWS Wilmington, OH issued this severe thunderstorm warning at Jan 5, 1997, 12:43 AM EST for Clermont County, Ohio. It was in force for 17 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
- Jan 5, 1997, 12:43 AM EST (05:43 UTC)
- Expired
- Jan 5, 1997, 1:00 AM EST
- In force
- 17 min
- Issued by
- NWS Wilmington, OH
- Area
- Whole counties
County Clermont County, OH
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 5.7 hours before the alert went out and 52 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 753 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 325 m²/s²
- 0-3 km storm-relative helicity
- 436 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
496 WUUS01 KILN 050544 SVRILN OHC025-050600- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE WILMINGTON OH 1243 AM EST SUN JAN 5 1997 THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS BEEN EXTENDED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 100 AM EST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHWEST OHIO ...CLERMONT COUNTY AT 1240 AM EST DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM IN THE VICINITY OF BRADFORD IN BRACKEN COUNTY. THE STORM WILL MOVE EAST NORTHEAST AROUND 40 MPH AND WILL CROSS THE SOUTHEAST PORTION OF CLEARMONT COUNTY NEAR FELICITY AND MOUNT OLIVE THROUGH 1 AM. THIS WARNING IS AN EXTENSION OF THE PREVIOUS CLERMONT COUNTY WARNING. 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. FARINA
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 Jan 4, 8:31 PM EST, 4 hours 12 minutes earlier.
Area forecast discussion, Jan 4, 8:31 PM EST, 4 hours 12 minutes before
FORECAST COORDINATION MESSAGE NATIONAL WEATHER SERVICE WILMINGTON OH 830 PM EST SAT JAN 4 1997 00Z SFC ANALYSIS INDICATED LOW PRES OVR LMICH WITH A CDFNT TRAILING SWD ACROSS ERN IL SWWD INTO TX. AHEAD OF THE FNT A NARROW AXIS OF 60+ DEW POINTS EXISTED ACROSS WRN KY AND WRN IN. IN THIS AREA...NMRS TRW WERE MOVG TOWARD FA. KILN SOUNDING WAS SLIGHTLY STABLE. MODIFYING FOR WORST CASE SCENARIO OF 60F DEW POINTS (NRN KY) GIVES A LI OF -1 AND CAPES AROUND 250. THUS CONTINUE CHC TRW ALONG WITH -SHRA. FROM DAY-CMH NWD...TRW WL BE WDLY SCT SINCE INSTABILITY WL HARDLY EXIST. HOWEVER... SUGGEST CONT MENTION OF TRW ALL ZONES. WITH PW'S OF 1.13 RAINFALL COULD BE HEAVY IN SPOTS. ONLY OTHER CHANGE NEEDED IS TO INCREASE WINDS ACROSS NRN KY AND INDICATE SWLY DIRECTION THROUGH MUCH OF NIGHT. WILKINSON
The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 4, 11:54 PM EST | Severe Thunderstorm Warning | ILN | Butler, Hamilton | 36 min |
| Jan 5, 12:01 AM EST | Severe Thunderstorm Warning | ILN | Clermont, Montgomery, Warren | 44 min |
| Jan 5, 12:25 AM EST | Severe Thunderstorm Warning | ILN | Champaign, Clark | 35 min |
| Jan 5, 12:25 AM EST | Severe Thunderstorm Warning | ILN | Brown, Clinton, Greene | 35 min |
| Jan 5, 12:49 AM EST | Severe Thunderstorm Warning | ILN | Fayette, Highland | 41 min |
| Jan 5, 12:49 AM EST | Severe Thunderstorm Warning | ILN | Madison | 41 min |
| Jan 5, 1:12 AM EST | Severe Thunderstorm Warning | ILN | Franklin | 48 min |
| Jan 5, 1:21 AM EST | Severe Thunderstorm Warning | ILN | Delaware | 69 min |
| Jan 5, 1:21 AM EST | Severe Thunderstorm Warning | ILN | Pickaway | 69 min |
| Jan 5, 1:24 AM EST | Severe Thunderstorm Warning | ILN | Adams | 66 min |
| Jan 5, 1:29 AM EST | Severe Thunderstorm Warning | ILN | Pike, Ross | 61 min |
| Jan 5, 1:47 AM EST | Severe Thunderstorm Warning | ILN | Scioto | 58 min |
| Jan 5, 1:47 AM EST | Severe Thunderstorm Warning | ILN | Fairfield, Hocking | 58 min |
| Jan 5, 1:47 AM EST | Severe Thunderstorm Warning | ILN | Licking | 58 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; the sounding from the Mesonet's radiosonde archive.