Alert archive / Pennsylvania / Tornado Watches in 2005

Tornado Watch 850

November 6, 200521 counties in New York; 33 counties in Pennsylvania; 4 counties in West Virginia

The Storm Prediction Center issued this tornado watch at Nov 6, 2005, 12:50 PM EST for 21 counties in New York; 33 counties in Pennsylvania; 4 counties in West Virginia. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Nov 6, 2005, 12:50 PM EST (17:50 UTC)
Expired
Nov 6, 2005, 6:03 PM EST
In force
5 hr
Issued by
the Storm Prediction Center
All 58 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, Franklin County, PA, Fulton County, PA, Greene County, PA, Huntingdon County, PA, Indiana County, PA, Jefferson County, PA, Juniata County, PA, Lawrence 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, Hancock County, WV, Marshall County, WV, Ohio County, WV

The radar

The Buffalo radar (KBUF), 99 km from the middle of the area, began a volume at 17:51 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.

Warnings issued inside it

43 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Nov 6, 12:50 PM ESTSevere Thunderstorm WarningPBZMarshall55 min
Nov 6, 12:55 PM ESTSevere Thunderstorm WarningPBZAllegheny65 min
Nov 6, 12:58 PM ESTSevere Thunderstorm WarningPBZForest77 min
Nov 6, 1:00 PM ESTSevere Thunderstorm WarningBUFNiagara, Orleans60 min
Nov 6, 1:02 PM ESTSevere Thunderstorm WarningBUFChautauqua28 min
Nov 6, 1:11 PM ESTSevere Thunderstorm WarningPBZButler49 min
Nov 6, 1:17 PM ESTSevere Thunderstorm WarningBUFCattaraugus28 min
Nov 6, 1:23 PM ESTSevere Thunderstorm WarningCTPElk, McKean67 min
Nov 6, 1:24 PM ESTSevere Thunderstorm WarningBUFGenesee36 min
Nov 6, 1:26 PM ESTSevere Thunderstorm WarningPBZArmstrong64 min
Nov 6, 1:29 PM ESTSevere Thunderstorm WarningPBZGreene61 min
Nov 6, 1:34 PM ESTSevere Thunderstorm WarningCTPWarren24 min
Nov 6, 1:37 PM ESTSevere Thunderstorm WarningPBZWestmoreland83 min
Nov 6, 1:45 PM ESTSevere Thunderstorm WarningBUFCattaraugus30 min
Nov 6, 1:48 PM ESTSevere Thunderstorm WarningBUFMonroe42 min
Nov 6, 1:49 PM ESTSevere Thunderstorm WarningPBZJefferson71 min
Nov 6, 1:54 PM ESTSevere Thunderstorm WarningPBZWashington66 min
Nov 6, 1:59 PM ESTSevere Thunderstorm WarningBUFWyoming31 min
Nov 6, 2:08 PM ESTSevere Thunderstorm WarningCTPPotter52 min
Nov 6, 2:08 PM ESTSevere Thunderstorm WarningPBZIndiana82 min
Nov 6, 2:12 PM ESTSevere Thunderstorm WarningCTPClearfield, Elk93 min
Nov 6, 2:15 PM ESTSevere Thunderstorm WarningBUFCattaraugus45 min
Nov 6, 2:19 PM ESTSevere Thunderstorm WarningBUFAllegany56 min
Nov 6, 2:22 PM ESTSevere Thunderstorm WarningPBZFayette53 min
Nov 6, 2:29 PM ESTSevere Thunderstorm WarningBGMSteuben46 min
Nov 6, 2:30 PM ESTSevere Thunderstorm WarningBUFMonroe60 min
Nov 6, 2:33 PM ESTSevere Thunderstorm WarningBUFLivingston42 min
Nov 6, 2:34 PM ESTSevere Thunderstorm WarningCTPCameron41 min
Nov 6, 2:54 PM ESTSevere Thunderstorm WarningBUFWyoming21 min
Nov 6, 2:59 PM ESTSevere Thunderstorm WarningCTPPotter46 min
Nov 6, 3:03 PM ESTSevere Thunderstorm WarningBUFOntario, Wayne42 min
Nov 6, 3:07 PM ESTSevere Thunderstorm WarningCTPClinton53 min
Nov 6, 3:13 PM ESTSevere Thunderstorm WarningBGMSchuyler, Steuben, Yates47 min
Nov 6, 3:17 PM ESTSevere Thunderstorm WarningBUFLivingston, Ontario43 min
Nov 6, 3:17 PM ESTSevere Thunderstorm WarningCTPTioga58 min
Nov 6, 3:31 PM ESTSevere Thunderstorm WarningCTPBlair44 min
Nov 6, 3:53 PM ESTSevere Thunderstorm WarningBGMCayuga, Chemung, Cortland, Onondaga, Schuyler, Seneca and 2 more52 min
Nov 6, 3:55 PM ESTSevere Thunderstorm WarningCTPCentre35 min
Nov 6, 4:01 PM ESTSevere Thunderstorm WarningCTPLycoming74 min
Nov 6, 4:03 PM ESTSevere Thunderstorm WarningCTPClinton42 min
Nov 6, 4:10 PM ESTSevere Thunderstorm WarningCTPHuntingdon35 min
Nov 6, 4:17 PM ESTSevere Thunderstorm WarningCTPMifflin58 min
Nov 6, 4:21 PM ESTSevere Thunderstorm WarningBUFOswego54 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, 5.8 hours before the alert went out and 96 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.

Skew-T log-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 12:00Z on 2005-11-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 12:00Z on 2005-11-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 227 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 6, 10:11 AM ESTMesoscale DiscussionSPCAllegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 7 more2 hr
Nov 6, 10:15 AM ESTSevere Thunderstorm WatchSPCAllegany, Cattaraugus, Cayuga, Chautauqua, Chemung, Erie and 15 more3 hr
Nov 6, 2:58 PM ESTMesoscale DiscussionSPCAlbany, Broome, Cayuga, Chemung, Chenango, Cortland and 28 more92 min
Nov 6, 4:00 PM ESTSevere Thunderstorm WatchSPCAlbany, Broome, Chenango, Clinton, Cortland, Delaware and 21 more6 hr
Nov 6, 6:47 PM ESTMesoscale DiscussionSPCAlbany, Bronx, Clinton, Columbia, Delaware, Dutchess and 21 more88 min
Nov 6, 5:20 AM ESTSevere Thunderstorm WatchSPCCrawford, Erie, Lawrence, Mercer7 hr
Nov 6, 8:44 AM ESTMesoscale DiscussionSPCCrawford, Erie91 min
Nov 6, 11:44 AM ESTMesoscale DiscussionSPCBeaver, Crawford, Erie, Lawrence, Mercer, Venango2 hr
Nov 6, 6:56 AM ESTMesoscale DiscussionSPCCabell, Jackson, Lincoln, Mason, Pleasants, Putnam and 3 more64 min
Nov 6, 1:25 PM ESTMesoscale DiscussionSPCBarbour, Boone, Braxton, Calhoun, Clay, Doddridge and 31 more2 hr

Nearby

Tornado Watches in Pennsylvania, 2005Tornado Watches in New York, 2005Tornado Watches in West Virginia, 2005Every tornado 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.