Alert archive / Ohio / Mesoscale Discussions in 2005

Mesoscale Discussion 2387

November 6, 200523 counties in Ohio; 6 counties in Pennsylvania; Hancock County, West Virginia

The Storm Prediction Center issued this mesoscale discussion at Nov 6, 2005, 11:44 AM EST for 23 counties in Ohio; 6 counties in Pennsylvania; Hancock County, West Virginia. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Nov 6, 2005, 11:44 AM EST (16:44 UTC)
Expired
Nov 6, 2005, 1:45 PM EST
In force
2 hr
Issued by
the Storm Prediction Center
All 30 counties

Ashtabula County, OH, Athens County, OH, Belmont County, OH, Carroll County, OH, Columbiana County, OH, Coshocton County, OH, Geauga County, OH, Guernsey County, OH, Harrison County, OH, Hocking County, OH, Jefferson County, OH, Mahoning County, OH, Monroe County, OH, Morgan County, OH, Muskingum County, OH, Noble County, OH, Perry County, OH, Portage County, OH, Stark County, OH, Trumbull County, OH, Tuscarawas County, OH, Vinton County, OH, Washington County, OH, Beaver County, PA, Crawford County, PA, Erie County, PA, Lawrence County, PA, Mercer County, PA, Venango County, PA, Hancock County, WV

The radar

The Pittsburgh radar (KPBZ), 100 km from the middle of the area, began a volume at 16:44 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.

The watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 4.7 hours before the alert went out and 110 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, Pittsburgh, PA at 12:00Z on 2005-11-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 86 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, Pittsburgh, PA at 12:00Z on 2005-11-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 359 square meters per square second.1939587897Sfc1 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
86 J/kg
Mixed-layer CIN
-93 J/kg
Mixed-layer LCL
947 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
359 m²/s²
0-3 km storm-relative helicity
291 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 6, 2:00 AM ESTSevere Thunderstorm WatchSPCAllen, Auglaize, Darke, Defiance, Fulton, Hancock and 11 more85 min
Nov 6, 3:30 AM ESTTornado WatchSPCAllen, Auglaize, Darke, Defiance, Fulton, Hancock and 11 more4 hr
Nov 6, 4:40 AM ESTMesoscale DiscussionSPCAdams, Ashland, Brown, Clermont, Clinton, Coshocton and 34 more95 min
Nov 6, 4:55 AM ESTTornado WatchSPCAdams, Brown, Butler, Champaign, Clark, Clermont and 20 more6 hr
Nov 6, 5:20 AM ESTSevere Thunderstorm WatchSPCAshland, Ashtabula, Carroll, Columbiana, Crawford, Cuyahoga and 24 more7 hr
Nov 6, 6:20 AM ESTMesoscale DiscussionSPCButler, Darke, Hamilton, Miami, Montgomery, Preble and 2 more55 min
Nov 6, 6:56 AM ESTMesoscale DiscussionSPCAthens, Gallia, Lawrence, Meigs, Washington64 min
Nov 6, 8:44 AM ESTMesoscale DiscussionSPCAdams, Ashland, Ashtabula, Athens, Brown, Carroll and 45 more91 min
Nov 6, 10:11 AM ESTMesoscale DiscussionSPCArmstrong, Bedford, Blair, Cambria, Cameron, Centre and 19 more2 hr
Nov 6, 10:15 AM ESTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Bedford, Blair, Butler and 24 more3 hr
Nov 6, 12:50 PM ESTTornado WatchSPCAllegheny, Armstrong, Beaver, Bedford, Blair, Butler and 27 more5 hr
Nov 6, 2:58 PM ESTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Bradford, Bucks and 35 more92 min
Nov 6, 4:00 PM ESTSevere Thunderstorm WatchSPCBradford, Carbon, Columbia, Lackawanna, Lehigh, Luzerne and 10 more6 hr
Nov 6, 6:47 PM ESTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Delaware, Lancaster and 8 more88 min
Nov 6, 1:25 PM ESTMesoscale DiscussionSPCBarbour, Boone, Braxton, Calhoun, Clay, Doddridge and 31 more2 hr

Nearby

Mesoscale Discussions in Ohio, 2005Mesoscale Discussions in Pennsylvania, 2005Mesoscale Discussions in West Virginia, 2005Every mesoscale discussion 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.