Alert archive / Pennsylvania / Severe Thunderstorm Watches in 2006
Severe Thunderstorm Watch 682
The Storm Prediction Center issued this severe thunderstorm watch at Aug 3, 2006, 11:48 AM EDT for 4 states. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 3, 2006, 11:48 AM EDT (15:48 UTC)
- Expired
- Aug 3, 2006, 8:00 PM EDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 70 kt
All 65 counties
Allegany County, NY, Broome County, NY, Cattaraugus County, NY, Chautauqua County, NY, Chemung County, NY, Schuyler County, NY, Steuben County, NY, Tioga County, NY, Tompkins County, NY, Carroll County, OH, Columbiana County, OH, Harrison County, OH, Jefferson County, OH, Mahoning County, OH, Trumbull County, OH, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Blair County, PA, Bradford County, PA, Butler County, PA, Cambria County, PA, Cameron County, PA, Centre County, PA, Clarion County, PA, Clearfield County, PA, Clinton County, PA, Columbia County, PA, Crawford County, PA, Elk County, PA, Erie County, PA, Fayette County, PA, Forest County, PA, Greene County, PA, Huntingdon County, PA, Indiana County, PA, Jefferson County, PA, Juniata County, PA, Lackawanna County, PA, Lawrence County, PA, Luzerne County, PA, Lycoming County, PA, McKean County, PA, Mercer County, PA, Mifflin County, PA, Montour County, PA, Northumberland County, PA, Potter County, PA, Snyder County, PA, Sullivan County, PA, Susquehanna County, PA, Tioga County, PA, Union County, PA, Venango County, PA, Warren County, PA, Washington County, PA, Wayne County, PA, Westmoreland County, PA, Wyoming County, PA, Brooke County, WV, Hancock County, WV, Marion County, WV, Monongalia County, WV, Preston County, WV, Tucker County, WV
The radar
The State College radar (KCCX), 92 km from the middle of the area, began a volume at 15:51 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 10%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 60%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
41 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 12:06 PM EDT | Severe Thunderstorm Warning | CLE | Mahoning | 39 min |
| Aug 3, 1:22 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 23 min |
| Aug 3, 1:34 PM EDT | Severe Thunderstorm Warning | BUF | Allegany | 40 min |
| Aug 3, 1:38 PM EDT | Severe Thunderstorm Warning | CTP | Potter | 67 min |
| Aug 3, 1:53 PM EDT | Severe Thunderstorm Warning | BGM | Chemung | 52 min |
| Aug 3, 2:01 PM EDT | Severe Thunderstorm Warning | BGM | Tioga | 59 min |
| Aug 3, 2:15 PM EDT | Severe Thunderstorm Warning | BGM | Broome | 60 min |
| Aug 3, 2:15 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 60 min |
| Aug 3, 2:19 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 56 min |
| Aug 3, 2:35 PM EDT | Severe Thunderstorm Warning | BGM | Steuben | 40 min |
| Aug 3, 2:39 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 66 min |
| Aug 3, 2:44 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll | 61 min |
| Aug 3, 2:48 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 117 min |
| Aug 3, 3:04 PM EDT | Severe Thunderstorm Warning | PBZ | Columbiana | 56 min |
| Aug 3, 3:14 PM EDT | Severe Thunderstorm Warning | BGM | Chemung | 61 min |
| Aug 3, 3:22 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 38 min |
| Aug 3, 3:22 PM EDT | Severe Thunderstorm Warning | CTP | Sullivan | 53 min |
| Aug 3, 3:22 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 53 min |
| Aug 3, 3:48 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 57 min |
| Aug 3, 3:49 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 56 min |
| Aug 3, 4:00 PM EDT | Severe Thunderstorm Warning | PBZ | Columbiana | 45 min |
| Aug 3, 4:03 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 57 min |
| Aug 3, 4:11 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne, Wyoming | 64 min |
| Aug 3, 4:22 PM EDT | Severe Thunderstorm Warning | CTP | Columbia | 38 min |
| Aug 3, 4:23 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll | 67 min |
| Aug 3, 4:26 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 64 min |
| Aug 3, 4:27 PM EDT | Severe Thunderstorm Warning | PBZ | Harrison | 63 min |
| Aug 3, 4:32 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 58 min |
| Aug 3, 4:38 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 67 min |
| Aug 3, 4:56 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 64 min |
| Aug 3, 5:17 PM EDT | Severe Thunderstorm Warning | PBZ | Brooke | 58 min |
| Aug 3, 5:18 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 57 min |
| Aug 3, 5:26 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 64 min |
| Aug 3, 5:38 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll | 38 min |
| Aug 3, 5:39 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 32 min |
| Aug 3, 5:45 PM EDT | Severe Thunderstorm Warning | PBZ | Columbiana | 60 min |
| Aug 3, 5:52 PM EDT | Severe Thunderstorm Warning | PBZ | Harrison | 53 min |
| Aug 3, 6:14 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 61 min |
| Aug 3, 6:21 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 54 min |
| Aug 3, 6:47 PM EDT | Severe Thunderstorm Warning | PBZ | Venango | 58 min |
| Aug 3, 7:48 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 57 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, 3.8 hours before the alert went out and 154 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
- 1336 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 983 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 29 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.5
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 8:49 PM EDT | Mesoscale Discussion | SPC | Clinton, Essex, Franklin, Hamilton, Herkimer, Jefferson and 7 more | 26 min |
| Aug 2, 9:11 PM EDT | Severe Thunderstorm Watch | SPC | Clinton, Essex, Franklin, Fulton, Hamilton, Herkimer and 10 more | 5 hr |
| Aug 2, 11:24 PM EDT | Mesoscale Discussion | SPC | Cayuga, Clinton, Essex, Franklin, Fulton, Hamilton and 11 more | 96 min |
| Aug 3, 10:59 AM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua | 91 min |
| Aug 3, 1:27 PM EDT | Mesoscale Discussion | SPC | Bronx, Columbia, Dutchess, Greene, Kings, Nassau and 9 more | 2 hr |
| Aug 3, 2:41 PM EDT | Severe Thunderstorm Watch | SPC | Bronx, Columbia, Delaware, Dutchess, Greene, Kings and 11 more | 7 hr |
| Aug 3, 2:49 PM EDT | Mesoscale Discussion | SPC | Chemung | 86 min |
| Aug 3, 4:06 PM EDT | Mesoscale Discussion | SPC | Bronx, Dutchess, Nassau, New York, Orange, Putnam and 6 more | 84 min |
| Aug 3, 7:35 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Queens, Richmond and 3 more | 55 min |
| Aug 2, 9:34 PM EDT | Mesoscale Discussion | SPC | Fulton, Lucas, Williams | 86 min |
| Aug 3, 12:52 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Ashland, Auglaize, Belmont, Butler, Champaign and 43 more | 7 hr |
| Aug 3, 2:21 PM EDT | Mesoscale Discussion | SPC | Ashland, Champaign, Clark, Coshocton, Crawford, Delaware and 16 more | 84 min |
| Aug 3, 5:59 PM EDT | Mesoscale Discussion | SPC | Butler, Clermont, Hamilton, Preble, Warren | 2 hr |
| Aug 3, 6:22 PM EDT | Mesoscale Discussion | SPC | Athens, Belmont, Carroll, Columbiana, Fairfield, Gallia and 16 more | 83 min |
| Aug 3, 2:47 PM EDT | Mesoscale Discussion | SPC | Mercer, Monroe | 118 min |
Nearby
Severe Thunderstorm Watches in Pennsylvania, 2006Severe Thunderstorm Watches in New York, 2006Severe Thunderstorm Watches in Ohio, 2006Every severe thunderstorm watch in 2006
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.