Alert archive / Pennsylvania / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 668
The Storm Prediction Center issued this severe thunderstorm watch at Jul 7, 2003, 3:10 PM EDT for 18 counties in Ohio; 20 counties in Pennsylvania; 16 counties in West Virginia. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 7, 2003, 3:10 PM EDT (19:10 UTC)
- Expired
- Jul 7, 2003, 9:00 PM EDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 54 counties
Athens County, OH, Belmont County, OH, Carroll County, OH, Columbiana County, OH, Guernsey County, OH, Harrison County, OH, Jefferson County, OH, Mahoning County, OH, Monroe County, OH, Morgan County, OH, Muskingum County, OH, Noble County, OH, Portage County, OH, Stark County, OH, Trumbull County, OH, Tuscarawas County, OH, Vinton County, OH, Washington County, OH, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Butler County, PA, Cambria County, PA, Cameron County, PA, Clarion County, PA, Clearfield County, PA, Elk County, PA, Fayette County, PA, Forest County, PA, Greene County, PA, Indiana County, PA, Jefferson County, PA, Lawrence County, PA, Mercer County, PA, Somerset County, PA, Venango County, PA, Washington County, PA, Westmoreland County, PA, Barbour County, WV, Brooke County, WV, Doddridge County, WV, Hancock County, WV, Harrison County, WV, Marion County, WV, Marshall County, WV, Monongalia County, WV, Ohio County, WV, Pleasants County, WV, Preston County, WV, Ritchie County, WV, Taylor County, WV, Tyler County, WV, Wetzel County, WV, Wood County, WV
The radar
The Pittsburgh radar (KPBZ), 63 km from the middle of the area, began a volume at 19:12 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
34 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 3:24 PM EDT | Tornado Warning | CLE | Mahoning | 66 min |
| Jul 7, 3:47 PM EDT | Tornado Warning | CLE | Portage | 43 min |
| Jul 7, 3:52 PM EDT | Severe Thunderstorm Warning | PBZ | Columbiana | 53 min |
| Jul 7, 4:02 PM EDT | Severe Thunderstorm Warning | CLE | Stark | 58 min |
| Jul 7, 4:12 PM EDT | Severe Thunderstorm Warning | PBZ | Wetzel | 63 min |
| Jul 7, 4:25 PM EDT | Severe Thunderstorm Warning | PBZ | Muskingum | 65 min |
| Jul 7, 4:29 PM EDT | Severe Thunderstorm Warning | CLE | Mahoning, Portage, Summit | 61 min |
| Jul 7, 4:32 PM EDT | Severe Thunderstorm Warning | PBZ | Tuscarawas | 58 min |
| Jul 7, 4:40 PM EDT | Severe Thunderstorm Warning | PBZ | Columbiana | 95 min |
| Jul 7, 4:41 PM EDT | Flash Flood Warning | CLE | Mahoning, Portage | 3 hr |
| Jul 7, 4:49 PM EDT | Severe Thunderstorm Warning | RLX | Athens, Morgan, Perry | 26 min |
| Jul 7, 4:56 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll | 64 min |
| Jul 7, 4:57 PM EDT | Severe Thunderstorm Warning | RLX | Harrison | 33 min |
| Jul 7, 4:59 PM EDT | Severe Thunderstorm Warning | PBZ | Guernsey | 61 min |
| Jul 7, 5:05 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 55 min |
| Jul 7, 5:12 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence | 63 min |
| Jul 7, 5:15 PM EDT | Severe Thunderstorm Warning | PBZ | Harrison | 90 min |
| Jul 7, 5:17 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 58 min |
| Jul 7, 5:28 PM EDT | Severe Thunderstorm Warning | PBZ | Hancock | 47 min |
| Jul 7, 5:30 PM EDT | Severe Thunderstorm Warning | PBZ | Belmont | 75 min |
| Jul 7, 5:36 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 54 min |
| Jul 7, 5:39 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 96 min |
| Jul 7, 5:44 PM EDT | Severe Thunderstorm Warning | PBZ | Monroe | 61 min |
| Jul 7, 5:46 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 74 min |
| Jul 7, 5:53 PM EDT | Severe Thunderstorm Warning | PBZ | Brooke, Ohio | 52 min |
| Jul 7, 6:03 PM EDT | Severe Thunderstorm Warning | PBZ | Marshall | 57 min |
| Jul 7, 6:14 PM EDT | Severe Thunderstorm Warning | PBZ | Wetzel | 61 min |
| Jul 7, 6:22 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 68 min |
| Jul 7, 6:27 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 78 min |
| Jul 7, 6:33 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 57 min |
| Jul 7, 6:55 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 65 min |
| Jul 7, 6:58 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 62 min |
| Jul 7, 7:12 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 33 min |
| Jul 7, 7:22 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 68 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, 7.2 hours before the alert went out and 63 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
- 202 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 648 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 9:46 PM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Champaign, Crawford, Darke, Defiance and 21 more | 59 min |
| Jul 7, 12:10 AM EDT | Severe Thunderstorm Watch | SPC | Butler, Clermont, Darke, Hamilton, Miami, Montgomery and 3 more | 3 hr |
| Jul 7, 12:51 AM EDT | Mesoscale Discussion | SPC | Butler, Clermont, Darke, Hamilton, Miami, Montgomery and 2 more | 114 min |
| Jul 7, 9:30 AM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Darke, Defiance, Fulton, Hancock and 12 more | 60 min |
| Jul 7, 9:45 AM EDT | Severe Thunderstorm Watch | SPC | Defiance, Fulton, Paulding, Williams | 4 hr |
| Jul 7, 11:14 AM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Auglaize, Butler, Champaign, Clark and 37 more | 61 min |
| Jul 7, 12:30 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Ashland, Auglaize, Champaign, Clark, Coshocton and 43 more | 6 hr |
| Jul 7, 1:14 PM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Defiance, Fulton, Henry, Lucas and 6 more | 61 min |
| Jul 7, 2:56 PM EDT | Mesoscale Discussion | SPC | Ashland, Belmont, Carroll, Champaign, Clark, Columbiana and 42 more | 94 min |
| Jul 7, 6:30 PM EDT | Tornado Watch | SPC | Allen, Auglaize, Champaign, Clark, Darke, Defiance and 13 more | 6 hr |
| Jul 7, 6:52 PM EDT | Mesoscale Discussion | SPC | Athens, Belmont, Carroll, Columbiana, Gallia, Geauga and 15 more | 53 min |
| Jul 7, 12:10 PM EDT | Mesoscale Discussion | SPC | Berks, Bucks, Carbon, Columbia, Lackawanna, Lebanon and 10 more | 65 min |
| Jul 7, 2:23 PM EDT | Mesoscale Discussion | SPC | Berks, Bucks, Carbon, Chester, Delaware, Lackawanna and 12 more | 67 min |
| Jul 7, 2:55 PM EDT | Severe Thunderstorm Watch | SPC | Berks, Bucks, Carbon, Chester, Delaware, Lancaster and 8 more | 5 hr |
| Jul 7, 6:29 PM EDT | Mesoscale Discussion | SPC | Berks, Bucks, Carbon, Chester, Delaware, Lancaster and 7 more | 61 min |
Nearby
Severe Thunderstorm Watches in Pennsylvania, 2003Severe Thunderstorm Watches in Ohio, 2003Severe Thunderstorm Watches in West Virginia, 2003Every severe thunderstorm watch in 2003
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.