Alert archive / Ohio / Severe Thunderstorm Watches in 2004
Severe Thunderstorm Watch 415
The Storm Prediction Center issued this severe thunderstorm watch at Jun 9, 2004, 1:00 PM EDT for 8 counties in New York; 22 counties in Ohio; 9 counties in Pennsylvania. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 9, 2004, 1:00 PM EDT (17:00 UTC)
- Expired
- Jun 9, 2004, 6:00 PM EDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 39 counties
Allegany County, NY, Cattaraugus County, NY, Chautauqua County, NY, Erie County, NY, Genesee County, NY, Livingston County, NY, Monroe County, NY, Wyoming County, NY, Ashland County, OH, Ashtabula County, OH, Crawford County, OH, Cuyahoga County, OH, Delaware County, OH, Erie County, OH, Geauga County, OH, Holmes County, OH, Huron County, OH, Knox County, OH, Lake County, OH, Lorain County, OH, Mahoning County, OH, Medina County, OH, Morrow County, OH, Ottawa County, OH, Portage County, OH, Richland County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Wayne County, OH, Crawford County, PA, Erie County, PA, Forest County, PA, Lawrence County, PA, McKean County, PA, Mercer County, PA, Potter County, PA, Venango County, PA, Warren County, PA
The radar
The Cleveland radar (KCLE), 89 km from the middle of the area, began a volume at 17:02 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
11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 1:42 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus | 48 min |
| Jun 9, 3:57 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 63 min |
| Jun 9, 4:21 PM EDT | Severe Thunderstorm Warning | CLE | Ashtabula | 39 min |
| Jun 9, 4:55 PM EDT | Severe Thunderstorm Warning | CLE | Geauga | 65 min |
| Jun 9, 5:05 PM EDT | Severe Thunderstorm Warning | CLE | Cuyahoga | 55 min |
| Jun 9, 5:10 PM EDT | Severe Thunderstorm Warning | CLE | Erie, Ottawa | 65 min |
| Jun 9, 5:32 PM EDT | Severe Thunderstorm Warning | CLE | Ashtabula | 58 min |
| Jun 9, 5:34 PM EDT | Severe Thunderstorm Warning | CLE | Summit | 56 min |
| Jun 9, 5:42 PM EDT | Flash Flood Warning | CLE | Geauga | 3 hr |
| Jun 9, 5:54 PM EDT | Severe Thunderstorm Warning | CLE | Medina | 66 min |
| Jun 9, 5:56 PM EDT | Severe Thunderstorm Warning | PBZ | Venango | 64 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 5.0 hours before the alert went out and 165 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
- 688 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 1054 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 10:11 AM EDT | Mesoscale Discussion | SPC | Clinton, Essex, Franklin, Hamilton, Herkimer, Jefferson and 3 more | 2 hr |
| Jun 9, 11:20 AM EDT | Severe Thunderstorm Watch | SPC | Cayuga, Essex, Franklin, Fulton, Hamilton, Herkimer and 12 more | 6 hr |
| Jun 9, 2:41 PM EDT | Mesoscale Discussion | SPC | Cayuga, Clinton, Essex, Franklin, Fulton, Hamilton and 13 more | 94 min |
| Jun 9, 3:44 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 2 more | 91 min |
| Jun 9, 4:21 PM EDT | Mesoscale Discussion | SPC | Cayuga, Clinton, Essex, Franklin, Fulton, Hamilton and 13 more | 54 min |
| Jun 9, 4:45 PM EDT | Severe Thunderstorm Watch | SPC | Albany, Broome, Cayuga, Chemung, Chenango, Clinton and 32 more | 5 hr |
| Jun 9, 5:27 PM EDT | Mesoscale Discussion | SPC | Cattaraugus, Chautauqua | 63 min |
| Jun 9, 5:50 PM EDT | Severe Thunderstorm Watch | SPC | Allegany, Cattaraugus, Chautauqua | 4 hr |
| Jun 9, 6:28 PM EDT | Mesoscale Discussion | SPC | Albany, Chenango, Fulton, Hamilton, Herkimer, Madison and 11 more | 62 min |
| Jun 9, 6:54 PM EDT | Mesoscale Discussion | SPC | Albany, Allegany, Cattaraugus, Cayuga, Chemung, Chenango and 25 more | 96 min |
| Jun 9, 7:55 PM EDT | Severe Thunderstorm Watch | SPC | Bronx, Dutchess, Kings, Nassau, New York, Orange and 7 more | 5 hr |
| Jun 9, 11:21 AM EDT | Mesoscale Discussion | SPC | Fulton, Lucas, Williams | 114 min |
| Jun 9, 12:35 PM EDT | Severe Thunderstorm Watch | SPC | Erie, Fulton, Lucas, Ottawa, Sandusky, Williams and 1 more | 5 hr |
| Jun 9, 2:51 PM EDT | Mesoscale Discussion | SPC | Erie, Fulton, Lucas, Ottawa, Sandusky, Williams | 84 min |
Nearby
Severe Thunderstorm Watches in Ohio, 2004Severe Thunderstorm Watches in Pennsylvania, 2004Severe Thunderstorm Watches in New York, 2004Every severe thunderstorm watch in 2004
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.