Alert archive / Pennsylvania / Severe Thunderstorm Watches in 2014
Severe Thunderstorm Watch 403
The Storm Prediction Center issued this severe thunderstorm watch at Jul 8, 2014, 1:04 PM EDT for 5 states. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 8, 2014, 1:04 PM EDT (17:04 UTC)
- Expired
- Jul 8, 2014, 8:00 PM EDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 65 kt
All 157 counties
Allegany County, MD, Garrett County, MD, Washington County, MD, Allegany County, NY, Broome County, NY, Cattaraugus County, NY, Cayuga County, NY, Chautauqua County, NY, Chemung County, NY, Chenango County, NY, Cortland County, NY, Delaware County, NY, Erie County, NY, Genesee County, NY, Jefferson County, NY, Lewis County, NY, Livingston County, NY, Madison County, NY, Monroe County, NY, Niagara County, NY, Oneida County, NY, Onondaga County, NY, Ontario County, NY, Orleans County, NY, Oswego County, NY, Otsego County, NY, Schuyler County, NY, Seneca County, NY, Steuben County, NY, Tioga County, NY, Tompkins County, NY, Wayne County, NY, Wyoming County, NY, Yates County, NY, Ashland County, OH, Ashtabula County, OH, Athens County, OH, Belmont County, OH, Carroll County, OH, Columbiana County, OH, Coshocton County, OH, Cuyahoga County, OH, Gallia County, OH, Geauga County, OH, Guernsey County, OH, Harrison County, OH, Holmes County, OH, Jackson County, OH, Jefferson County, OH, Knox County, OH, Lake County, OH, Lawrence County, OH, Lorain County, OH, Mahoning County, OH, Medina County, OH, Meigs County, OH, Monroe County, OH, Morgan County, OH, Muskingum County, OH, Noble County, OH, Perry County, OH, Portage County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Tuscarawas County, OH, Vinton County, OH, Washington County, OH, Wayne County, OH, Adams County, PA, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Bedford 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, Cumberland County, PA, Dauphin County, PA, Elk County, PA, Erie County, PA, Fayette County, PA, Forest County, PA, Franklin County, PA, Fulton 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, Perry County, PA, Potter County, PA, Schuylkill County, PA, Snyder County, PA, Somerset 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, Barbour County, WV, Berkeley County, WV, Braxton County, WV, Brooke County, WV, Calhoun County, WV, Doddridge County, WV, Gilmer County, WV, Grant County, WV, Hampshire County, WV, Hancock County, WV, Hardy County, WV, Harrison County, WV, Jackson County, WV, Jefferson County, WV, Lewis County, WV, Marion County, WV, Marshall County, WV, Mason County, WV, Mineral County, WV, Monongalia County, WV, Morgan County, WV, Ohio County, WV, Pendleton County, WV, Pleasants County, WV, Preston County, WV, Randolph County, WV, Ritchie County, WV, Roane County, WV, Taylor County, WV, Tucker County, WV, Tyler County, WV, Upshur County, WV, Wetzel County, WV, Wirt County, WV, Wood County, WV
The radar
The Pittsburgh radar (KPBZ), 54 km from the middle of the area, began a volume at 17:07 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
- 20%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 90%
- 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
- 95%
Warnings issued inside it
78 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 1:26 PM EDT | Severe Thunderstorm Warning | PBZ | Belmont, Guernsey, Harrison, Muskingum, Noble | 41 min |
| Jul 8, 1:30 PM EDT | Severe Thunderstorm Warning | CLE | Cuyahoga, Medina | 45 min |
| Jul 8, 1:33 PM EDT | Tornado Warning | CLE | Cuyahoga, Medina | 27 min |
| Jul 8, 1:56 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Wyoming | 49 min |
| Jul 8, 2:03 PM EDT | Severe Thunderstorm Warning | RLX | Gallia, Lawrence, Meigs | 42 min |
| Jul 8, 2:18 PM EDT | Severe Thunderstorm Warning | CLE | Ashtabula | 57 min |
| Jul 8, 2:30 PM EDT | Severe Thunderstorm Warning | RLX | Lawrence | 30 min |
| Jul 8, 2:43 PM EDT | Severe Thunderstorm Warning | PBZ | Monroe | 34 min |
| Jul 8, 2:43 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Butler, Indiana, Jefferson, Westmoreland | 62 min |
| Jul 8, 2:45 PM EDT | Severe Thunderstorm Warning | BUF | Chautauqua | 60 min |
| Jul 8, 2:45 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Beaver, Butler, Clarion, Lawrence | 60 min |
| Jul 8, 2:47 PM EDT | Tornado Warning | PBZ | Mercer, Venango | 32 min |
| Jul 8, 2:50 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 70 min |
| Jul 8, 3:06 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Chautauqua, Erie | 54 min |
| Jul 8, 3:06 PM EDT | Severe Thunderstorm Warning | PBZ | Marion, Monongalia, Wetzel | 39 min |
| Jul 8, 3:08 PM EDT | Severe Thunderstorm Warning | RLX | Lawrence | 22 min |
| Jul 8, 3:09 PM EDT | Severe Thunderstorm Warning | PBZ | Marion, Monongalia, Preston | 66 min |
| Jul 8, 3:12 PM EDT | Tornado Warning | PBZ | Armstrong, Butler, Clarion | 33 min |
| Jul 8, 3:15 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 45 min |
| Jul 8, 3:33 PM EDT | Tornado Warning | PBZ | Monongalia, Preston | 42 min |
| Jul 8, 3:35 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Niagara | 55 min |
| Jul 8, 3:37 PM EDT | Severe Thunderstorm Warning | RLX | Barbour, Braxton, Calhoun, Gilmer, Harrison, Lewis and 4 more | 38 min |
| Jul 8, 3:41 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Jefferson | 34 min |
| Jul 8, 3:41 PM EDT | Severe Thunderstorm Warning | RLX | Barbour, Harrison, Taylor | 34 min |
| Jul 8, 3:43 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 62 min |
| Jul 8, 3:50 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Somerset | 70 min |
| Jul 8, 3:56 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Warren | 64 min |
| Jul 8, 4:00 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Erie | 45 min |
| Jul 8, 4:01 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 45 min |
| Jul 8, 4:03 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Westmoreland | 27 min |
| Jul 8, 4:05 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 55 min |
| Jul 8, 4:10 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Niagara, Orleans, Wyoming | 44 min |
| Jul 8, 4:18 PM EDT | Severe Thunderstorm Warning | RLX | Pocahontas, Randolph, Webster | 27 min |
| Jul 8, 4:27 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 52 min |
| Jul 8, 4:31 PM EDT | Severe Thunderstorm Warning | BUF | Genesee, Livingston, Monroe, Ontario, Orleans, Wyoming | 57 min |
| Jul 8, 4:33 PM EDT | Severe Thunderstorm Warning | LWX | Grant, Hardy, Pendleton | 57 min |
| Jul 8, 4:40 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 65 min |
| Jul 8, 4:43 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus | 62 min |
| Jul 8, 4:45 PM EDT | Severe Thunderstorm Warning | BGM | Cayuga, Seneca, Steuben, Yates | 60 min |
| Jul 8, 4:51 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Ontario, Oswego, Wayne | 54 min |
| Jul 8, 4:51 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Fulton | 69 min |
| Jul 8, 5:02 PM EDT | Severe Thunderstorm Warning | BUF | Monroe, Ontario, Wayne | 58 min |
| Jul 8, 5:05 PM EDT | Severe Thunderstorm Warning | LWX | Grant, Hampshire, Hardy, Mineral, Pendleton | 55 min |
| Jul 8, 5:09 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 51 min |
| Jul 8, 5:13 PM EDT | Severe Thunderstorm Warning | LWX | Pendleton | 62 min |
| Jul 8, 5:15 PM EDT | Severe Thunderstorm Warning | BGM | Cayuga, Onondaga, Seneca | 60 min |
| Jul 8, 5:25 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan, Tioga | 50 min |
| Jul 8, 5:27 PM EDT | Severe Thunderstorm Warning | BGM | Chemung, Schuyler, Steuben | 63 min |
| Jul 8, 5:30 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 45 min |
| Jul 8, 5:35 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 55 min |
| Jul 8, 5:39 PM EDT | Tornado Warning | BGM | Cayuga, Madison, Onondaga | 66 min |
| Jul 8, 5:40 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Bedford, Blair, Cumberland, Franklin, Fulton and 4 more | 80 min |
| Jul 8, 5:41 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Oswego, Wayne | 79 min |
| Jul 8, 5:51 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Columbia, Juniata, Lycoming, Mifflin and 5 more | 54 min |
| Jul 8, 5:55 PM EDT | Tornado Warning | BGM | Bradford, Susquehanna | 65 min |
| Jul 8, 6:00 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Howard, Montgomery, Washington | 45 min |
| Jul 8, 6:00 PM EDT | Tornado Warning | CTP | Sullivan | 30 min |
| Jul 8, 6:01 PM EDT | Severe Thunderstorm Warning | BGM | Broome, Chemung, Cortland, Schuyler, Tioga, Tompkins | 59 min |
| Jul 8, 6:03 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Oswego | 57 min |
| Jul 8, 6:12 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis | 78 min |
| Jul 8, 6:14 PM EDT | Severe Thunderstorm Warning | BGM | Cayuga, Cortland, Madison, Onondaga, Tompkins | 61 min |
| Jul 8, 6:16 PM EDT | Tornado Warning | BGM | Madison, Oneida | 44 min |
| Jul 8, 6:27 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wyoming | 63 min |
| Jul 8, 6:29 PM EDT | Tornado Warning | BGM | Broome, Tioga | 36 min |
| Jul 8, 6:30 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Columbia, Cumberland, Dauphin, Juniata, Lancaster and 7 more | 90 min |
| Jul 8, 6:38 PM EDT | Tornado Warning | BGM | Bradford, Susquehanna, Wyoming | 52 min |
| Jul 8, 6:41 PM EDT | Tornado Warning | CTP | Dauphin, Northumberland, Perry | 34 min |
| Jul 8, 6:45 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Wyoming | 60 min |
| Jul 8, 6:46 PM EDT | Severe Thunderstorm Warning | BGM | Chenango, Cortland, Madison, Oneida, Onondaga, Otsego | 59 min |
| Jul 8, 6:53 PM EDT | Severe Thunderstorm Warning | BGM | Oneida | 67 min |
| Jul 8, 7:03 PM EDT | Severe Thunderstorm Warning | BGM | Broome, Chemung, Cortland, Tioga, Tompkins | 57 min |
| Jul 8, 7:07 PM EDT | Tornado Warning | CTP | Dauphin, Northumberland, Schuylkill | 23 min |
| Jul 8, 7:11 PM EDT | Severe Thunderstorm Warning | BGM | Broome, Delaware, Sullivan | 64 min |
| Jul 8, 7:15 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 45 min |
| Jul 8, 7:17 PM EDT | Tornado Warning | BGM | Broome, Delaware, Sullivan | 58 min |
| Jul 8, 7:22 PM EDT | Severe Thunderstorm Warning | BGM | Broome, Chenango, Cortland, Otsego | 53 min |
| Jul 8, 7:28 PM EDT | Tornado Warning | CTP | Northumberland, Schuylkill | 32 min |
| Jul 8, 7:40 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Pike, Susquehanna, Wayne, Wyoming | 65 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 (KAGC), launched 12:00Z, 5.1 hours before the alert went out and 48 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
- 96 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 909 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 175 m²/s²
- 0-3 km storm-relative helicity
- 205 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 |
|---|---|---|---|---|
| Jul 8, 4:00 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 90 min |
| Jul 8, 4:42 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 12 more | 63 min |
| Jul 8, 5:05 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 11 more | 5 hr |
| Jul 8, 7:44 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Caroline, Carroll, Cecil, Harford and 5 more | 61 min |
| Jul 8, 11:29 AM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Cayuga, Chautauqua, Chemung and 18 more | 91 min |
| Jul 8, 1:36 PM EDT | Mesoscale Discussion | SPC | Albany, Columbia, Essex, Fulton, Greene, Hamilton and 9 more | 84 min |
| Jul 8, 5:39 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Clinton, Columbia, Delaware, Dutchess and 26 more | 66 min |
| Jul 8, 6:27 PM EDT | Severe Thunderstorm Watch | SPC | Albany, Bronx, Clinton, Columbia, Delaware, Dutchess and 26 more | 6 hr |
| Jul 8, 8:58 AM EDT | Mesoscale Discussion | SPC | Ashland, Crawford, Cuyahoga, Erie, Geauga, Hancock and 18 more | 62 min |
| Jul 8, 4:02 PM EDT | Mesoscale Discussion | SPC | Buchanan, Dickenson, Lee, Russell, Scott, Washington and 3 more | 88 min |
Nearby
Severe Thunderstorm Watches in Pennsylvania, 2014Severe Thunderstorm Watches in Ohio, 2014Severe Thunderstorm Watches in West Virginia, 2014Every severe thunderstorm watch in 2014
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.