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Thursday Severe Threat Forecast Discussion


WilkesboroDude

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Monday Severe Weather

NWS Raleigh

Regarding the convective Mode and severe chances: the pre-frontal

convection is expected to occur in an environment characterized by

30-40 kts of 0-6 km bulk shear...owing to the presence of a middle

level speed vorticity maximum maintained by/coincident with the

pre-frontal convective band. Long and relatively straight forecast

hodographs would support primarily a wind threat...particularly with

any line segments that may form provided adequate destabilization

occurs ahead of the line. The approach of the aforementioned upper

trough will then promote markedly strengthening middle-upper

southwesterly flow...with 0-6 km bulk shear values increasing to

50-60 kts along the surface cold front. While the deeper moist axis

more supportive of convection will have progressed eastward with the

wcb...the magnitude of middle-upper forcing and cooling...and modest

surface frontal convergence/forcing...should support convection

vigorous enough to interact with the aforementioned increasing

environmental shear. The earlier long and straight forecast

hodographs become increasingly cyclonically-curved in the lowest

km...which when combined with the strong bulk shear oriented

relatively parallel to the surface front...would support a broken

line of storms -including supercells conditional upon

destabilization west of the earlier

wcb - all of which would be capable of producing damaging winds. A

threat of large hail and non-zero tornado threat would also

accompany any supercell.

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Nice to see no mini outbreak of severe weather...there was some rough storms this morning in Wilkes.

http://www.journalpa...19bb30f31a.html

2,300 lose electricity

507c4dae97685.preview-300.jpg

At about 8:40 a.m. today, steam was still rising from a burn mark about 3 feet long in the asphalt and a nearby puddle of water in the parking lot was still warm.

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10/17/2012 0740 PM

Clarendon, Monroe County.

Tornado, reported by trained spotter.

A building was damaged in Clarendon... with parts of the

building out in the street. Many trees and power lines

were blown down. The entergy electic outage map indicated

the entire town of Clarendon was without power. Extra

state troopers are headed to Clarendon.

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Well the threat tonight into tomorrow went to crap quick. The 0z NAM last night looked to be on the up and up, guess the runs this morning said otherwise.

This is better than nothing severe mid-october I reckon'...

DMxfV.gif

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10/17/2012 1102 PM

5 miles NW of Yazoo City, Yazoo County.

Thunderstorm wind damage, reported by Emergency Mngr.

Heavy damage reported along Lake City Rd

10/18/2012 0105 am

2 miles S of Conehatta, Newton County.

Tornado, reported by law enforcement.

Dozens of trees and power lines down along with several

sturctures damaged. Most damage occurred along

Newton-Conehatta Rd and Caney Creek Rd.

10/18/2012 1255 am

5 miles NE of Forest, Scott County.

Thunderstorm wind damage, reported by Emergency Mngr.

*** 1 inj *** person trapped in Mobile home with tree on

top on Russell community Rd. Lots of trees down in the

area as well.

10/18/2012 1255 am

6 miles NE of Forest, Scott County.

Tornado, reported by Emergency Mngr.

A Mobile home was destroyed on the northern end of

Conehatta Road near jim Owens Road. Four large

transmission towers were blown down on jim Owens Road.

10/17/2012 1041 PM

5 miles WNW of Louise, Sharkey County.

Tornado, reported by law enforcement.

*** 5 inj *** 2 Mobile homes destroyed along with other

damaged homes along Hwy 14... 5 injuries.

10/17/2012 0908 PM

2 miles NE of Shelby, Bolivar County.

Tornado, reported by Emergency Mngr.

Heavy damage along Blue Cane Rd... 3 structures damaged

with one home off its blocks along with the roof removed.

Power lines down and power poles snapped.

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