Alert archive / Pennsylvania / Severe Thunderstorm Watches in 2008
Severe Thunderstorm Watch 596
The Storm Prediction Center issued this severe thunderstorm watch at Jun 22, 2008, 2:24 PM EDT for 4 states. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 22, 2008, 2:24 PM EDT (18:24 UTC)
- Expired
- Jun 22, 2008, 8:02 PM EDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 100 counties
Northwest Hills Planning Region, CT, Berkshire County, MA, Albany County, NY, Allegany County, NY, Broome County, NY, Cattaraugus County, NY, Cayuga County, NY, Chautauqua County, NY, Chemung County, NY, Chenango County, NY, Columbia County, NY, Cortland County, NY, Delaware County, NY, Dutchess County, NY, Fulton County, NY, Greene County, NY, Hamilton County, NY, Herkimer County, NY, Lewis County, NY, Livingston County, NY, Madison County, NY, Montgomery County, NY, Oneida County, NY, Onondaga County, NY, Ontario County, NY, Oswego County, NY, Otsego County, NY, Rensselaer County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Schuyler County, NY, Seneca County, NY, Steuben County, NY, Sullivan County, NY, Tioga County, NY, Tompkins County, NY, Ulster County, NY, Warren County, NY, Washington County, NY, Wayne County, NY, Wyoming County, NY, Yates County, NY, 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, Lancaster County, PA, Lawrence County, PA, Lebanon 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, Pike 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, York County, PA
The radar
The State College radar (KCCX), 114 km from the middle of the area, began a volume at 18:24 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
- 5%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 70%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
20 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 2:29 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 61 min |
| Jun 22, 3:13 PM EDT | Severe Thunderstorm Warning | ALY | Berkshire | 28 min |
| Jun 22, 3:27 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 63 min |
| Jun 22, 4:02 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton, Huntingdon | 43 min |
| Jun 22, 4:20 PM EDT | Severe Thunderstorm Warning | ALY | Albany, Saratoga, Schenectady | 55 min |
| Jun 22, 4:23 PM EDT | Severe Thunderstorm Warning | ALY | Fulton, Herkimer, Montgomery | 67 min |
| Jun 22, 4:28 PM EDT | Tornado Warning | ALY | Albany, Saratoga, Schenectady | 47 min |
| Jun 22, 4:38 PM EDT | Severe Thunderstorm Warning | BGM | Oneida | 21 min |
| Jun 22, 4:39 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon, Juniata, Mifflin, Perry | 51 min |
| Jun 22, 4:49 PM EDT | Severe Thunderstorm Warning | ALY | Saratoga | 41 min |
| Jun 22, 5:06 PM EDT | Severe Thunderstorm Warning | ALY | Saratoga, Washington | 29 min |
| Jun 22, 5:12 PM EDT | Tornado Warning | ALY | Rensselaer, Saratoga | 44 min |
| Jun 22, 5:14 PM EDT | Severe Thunderstorm Warning | ALY | Fulton, Hamilton, Herkimer | 28 min |
| Jun 22, 5:25 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Fulton | 65 min |
| Jun 22, 5:25 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer, Venango | 65 min |
| Jun 22, 5:27 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Mifflin, Snyder | 48 min |
| Jun 22, 5:49 PM EDT | Severe Thunderstorm Warning | ALY | Washington | 41 min |
| Jun 22, 6:01 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Mifflin, Snyder, Union | 44 min |
| Jun 22, 6:48 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Centre, Huntingdon, Juniata, Mifflin | 57 min |
| Jun 22, 7:44 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Huntingdon, Mifflin | 61 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, 6.4 hours before the alert went out and 266 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1050 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 87 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 22, 10:31 AM EDT | Mesoscale Discussion | SPC | 89 min | |
| Jun 22, 2:07 PM EDT | Mesoscale Discussion | SPC | Essex, Middlesex, Worcester | 83 min |
| Jun 22, 1:42 PM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Cayuga, Chemung, Chenango and 22 more | 93 min |
| Jun 22, 12:16 PM EDT | Mesoscale Discussion | SPC | Bedford, Fayette, Fulton, Greene, Somerset | 89 min |
Nearby
Severe Thunderstorm Watches in Pennsylvania, 2008Severe Thunderstorm Watches in New York, 2008Severe Thunderstorm Watches in Connecticut, 2008Every severe thunderstorm watch in 2008
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.