Alert archive / Ohio / Severe Thunderstorm Watches in 1998
Severe Thunderstorm Watch 698
The Storm Prediction Center issued this severe thunderstorm watch at Jun 29, 1998, 2:15 AM EDT for 28 counties in Ohio. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 29, 1998, 2:15 AM EDT (06:15 UTC)
- Expired
- Jun 29, 1998, 6:00 AM EDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 28 counties
Adams County, OH, Brown County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Darke County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Hamilton County, OH, Highland County, OH, Jackson County, OH, Lawrence County, OH, Logan County, OH, Madison County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Pickaway County, OH, Pike County, OH, Preble County, OH, Ross County, OH, Scioto County, OH, Shelby County, OH, Warren County, OH
The radar
The Cincinnati radar (KILN), 44 km from the middle of the area, began a volume at 06:15 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.
Warnings issued inside it
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 2:16 AM EDT | Flash Flood Warning | ILN | Franklin, Madison, Pickaway | 3 hr |
| Jun 29, 2:27 AM EDT | Severe Thunderstorm Warning | ILN | Pickaway | 63 min |
| Jun 29, 2:56 AM EDT | Flash Flood Warning | ILN | Mercer | 114 min |
| Jun 29, 3:00 AM EDT | Severe Thunderstorm Warning | ILN | Franklin | 60 min |
| Jun 29, 3:19 AM EDT | Flash Flood Warning | ILN | Franklin, Madison, Pickaway, Union | 4 hr |
| Jun 29, 3:29 AM EDT | Severe Thunderstorm Warning | ILN | Pickaway | 61 min |
| Jun 29, 5:09 AM EDT | Flash Flood Warning | RLX | Jackson, Vinton | 4 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 6.3 hours before the alert went out and 43 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
- 3668 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1100 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.1
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 9:00 PM EDT | Severe Thunderstorm Watch | SPC | Athens, Fairfield, Gallia, Hocking, Jackson, Lawrence and 7 more | 5 hr |
Nearby
Severe Thunderstorm Watches in Ohio, 1998Every severe thunderstorm watch 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.