Alert archive / Pennsylvania / Severe Thunderstorm Watches in 2005
Severe Thunderstorm Watch 849
The Storm Prediction Center issued this severe thunderstorm watch at Nov 6, 2005, 10:15 AM EST for 21 counties in New York; 30 counties in Pennsylvania; Brooke County, Marshall County, Ohio County, West Virginia. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Nov 6, 2005, 10:15 AM EST (15:15 UTC)
- Expired
- Nov 6, 2005, 12:49 PM EST
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
All 54 counties
Allegany County, NY, Cattaraugus County, NY, Cayuga County, NY, Chautauqua County, NY, Chemung County, NY, Erie County, NY, Genesee County, NY, Livingston County, NY, Monroe County, NY, Niagara County, NY, Onondaga County, NY, Ontario County, NY, Orleans County, NY, Oswego County, NY, Schuyler County, NY, Seneca County, NY, Steuben County, NY, Tompkins County, NY, Wayne County, NY, Wyoming County, NY, Yates County, NY, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Bedford County, PA, Blair County, PA, Butler County, PA, Cambria County, PA, Cameron County, PA, Centre County, PA, Clarion County, PA, Clearfield County, PA, Clinton County, PA, Elk County, PA, Fayette County, PA, Forest County, PA, Fulton County, PA, Greene County, PA, Huntingdon County, PA, Indiana County, PA, Jefferson County, PA, Lycoming County, PA, McKean County, PA, Mifflin County, PA, Potter County, PA, Somerset County, PA, Tioga County, PA, Venango County, PA, Warren County, PA, Washington County, PA, Westmoreland County, PA, Brooke County, WV, Marshall County, WV, Ohio County, WV
The radar
The Buffalo radar (KBUF), 103 km from the middle of the area, began a volume at 15:15 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
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 6, 11:52 AM EST | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence | 53 min |
| Nov 6, 12:17 PM EST | Severe Thunderstorm Warning | PBZ | Butler | 58 min |
| Nov 6, 12:24 PM EST | Severe Thunderstorm Warning | PBZ | Brooke, Ohio | 66 min |
| Nov 6, 12:40 PM EST | Severe Thunderstorm Warning | PBZ | Venango | 28 min |
| Nov 6, 12:41 PM EST | Severe Thunderstorm Warning | PBZ | Washington | 64 min |
| Nov 6, 12:45 PM EST | Severe Thunderstorm Warning | CTP | Warren | 45 min |
| Nov 6, 12:47 PM EST | Severe Thunderstorm Warning | PBZ | Clarion | 58 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
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 3.3 hours before the alert went out and 101 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
- 1265 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 227 m²/s²
- 0-3 km storm-relative helicity
- 231 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 |
|---|---|---|---|---|
| Nov 6, 10:11 AM EST | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 7 more | 2 hr |
| Nov 6, 12:50 PM EST | Tornado Watch | SPC | Allegany, Cattaraugus, Cayuga, Chautauqua, Chemung, Erie and 15 more | 5 hr |
| Nov 6, 2:58 PM EST | Mesoscale Discussion | SPC | Albany, Broome, Cayuga, Chemung, Chenango, Cortland and 28 more | 92 min |
| Nov 6, 4:00 PM EST | Severe Thunderstorm Watch | SPC | Albany, Broome, Chenango, Clinton, Cortland, Delaware and 21 more | 6 hr |
| Nov 6, 6:47 PM EST | Mesoscale Discussion | SPC | Albany, Bronx, Clinton, Columbia, Delaware, Dutchess and 21 more | 88 min |
| Nov 6, 5:20 AM EST | Severe Thunderstorm Watch | SPC | Crawford, Erie, Lawrence, Mercer | 7 hr |
| Nov 6, 8:44 AM EST | Mesoscale Discussion | SPC | Crawford, Erie | 91 min |
| Nov 6, 11:44 AM EST | Mesoscale Discussion | SPC | Beaver, Crawford, Erie, Lawrence, Mercer, Venango | 2 hr |
| Nov 6, 6:56 AM EST | Mesoscale Discussion | SPC | Cabell, Jackson, Lincoln, Mason, Pleasants, Putnam and 3 more | 64 min |
| Nov 6, 1:25 PM EST | Mesoscale Discussion | SPC | Barbour, Boone, Braxton, Calhoun, Clay, Doddridge and 31 more | 2 hr |
Nearby
Severe Thunderstorm Watches in Pennsylvania, 2005Severe Thunderstorm Watches in New York, 2005Severe Thunderstorm Watches in West Virginia, 2005Every severe thunderstorm watch in 2005
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.