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E PA/NJ/DE/NE MD: Banter/Non Storm OBS thread


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PUBLIC INFORMATION STATEMENT

NATIONAL WEATHER SERVICE STATE COLLEGE PA

534 PM EDT SAT OCT 20 2012

..TORNADO CONFIRMED IN LANCASTER COUNTY PENNSYLVANIA

LOCATION...FERN GLEN TO PARADISE IN LANCASTER COUNTY PENNSYLVANIA

DATE...10/19/2012

ESTIMATED TIME...810 PM EDT

MAXIMUM EF-SCALE RATING...EF1

ESTIMATED MAXIMUM WIND SPEED...100-110 MPH

MAXIMUM PATH WIDTH...200 YARDS

PATH LENGTH...16 MILES

BEGINNING LAT/LON...

ENDING LAT/LON...

* FATALITIES...0

* INJURIES...15

* THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO

CHANGE PENDING FINAL REVIEW OF THE EVENT(S) AND PUBLICATION IN NWS

STORM DATA.

..SUMMARY

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS CONFIRMED

THAT A TORNADO TOUCHED DOWN NEAR FERN GLEN AND TRAVELED NORTHEAST

TO NEAR PARADISE IN LANCASTER COUNTY PENNSYLVANIA ON 10/19/2012.

*THE TORNADO DAMAGE WAS SPORADIC AND EMBEDDED WITHIN A LARGER AREA

OF STRAIGHT LINE WIND DAMAGE THAT EXTENDED FROM FERN GLEN IN

DRUMORE TOWNSHIP TO PARADISE CITY IN PARADISE TOWNSHIP, LANCASTER

COUNTY. IT IS ESTIMATED THAT THE TORNADO TOUCHED DOWN AROUND 810

PM AND LIFTED BACK UP AROUND 820 PM. THE DAMAGE PATH WAS

APPROXIMATELY 16 MILES LONG AND 200 YARDS WIDE AT ITS WIDEST

POINT.

*15 INJURIES OCCURRED IN PARADISE PARK WHEN A PAVILION COLLAPSED.

*50 STRUCTURES WERE DAMAGED AND SEVERAL BARNS WERE DESTROYED.

*AN ESTIMATED 2000-3000 TREES WERE KNOCKED DOWN.

*2 SMALL HIGH TENSION TOWERS WERE KNOCKED DOWN IN BUCK.

*THE LANCASTER COUNTY EMERGENCY MANAGEMENT OFFICE ESTIMATES 3 TO 5

MILLION DOLLARS IN DAMAGE.

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PUBLIC INFORMATION STATEMENT

NATIONAL WEATHER SERVICE STATE COLLEGE PA

534 PM EDT SAT OCT 20 2012

..TORNADO CONFIRMED IN LANCASTER COUNTY PENNSYLVANIA

LOCATION...FERN GLEN TO PARADISE IN LANCASTER COUNTY PENNSYLVANIA

DATE...10/19/2012

ESTIMATED TIME...810 PM EDT

MAXIMUM EF-SCALE RATING...EF1

ESTIMATED MAXIMUM WIND SPEED...100-110 MPH

MAXIMUM PATH WIDTH...200 YARDS

PATH LENGTH...16 MILES

BEGINNING LAT/LON...

ENDING LAT/LON...

* FATALITIES...0

* INJURIES...15

* THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO

CHANGE PENDING FINAL REVIEW OF THE EVENT(S) AND PUBLICATION IN NWS

STORM DATA.

..SUMMARY

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS CONFIRMED

THAT A TORNADO TOUCHED DOWN NEAR FERN GLEN AND TRAVELED NORTHEAST

TO NEAR PARADISE IN LANCASTER COUNTY PENNSYLVANIA ON 10/19/2012.

*THE TORNADO DAMAGE WAS SPORADIC AND EMBEDDED WITHIN A LARGER AREA

OF STRAIGHT LINE WIND DAMAGE THAT EXTENDED FROM FERN GLEN IN

DRUMORE TOWNSHIP TO PARADISE CITY IN PARADISE TOWNSHIP, LANCASTER

COUNTY. IT IS ESTIMATED THAT THE TORNADO TOUCHED DOWN AROUND 810

PM AND LIFTED BACK UP AROUND 820 PM. THE DAMAGE PATH WAS

APPROXIMATELY 16 MILES LONG AND 200 YARDS WIDE AT ITS WIDEST

POINT.

*15 INJURIES OCCURRED IN PARADISE PARK WHEN A PAVILION COLLAPSED.

*50 STRUCTURES WERE DAMAGED AND SEVERAL BARNS WERE DESTROYED.

*AN ESTIMATED 2000-3000 TREES WERE KNOCKED DOWN.

*2 SMALL HIGH TENSION TOWERS WERE KNOCKED DOWN IN BUCK.

*THE LANCASTER COUNTY EMERGENCY MANAGEMENT OFFICE ESTIMATES 3 TO 5

MILLION DOLLARS IN DAMAGE.

WOW and was there even an Tornado Warning? I don't even recall during the day that anything was even mentioned, did someone drop the ball? This was 10 minutes from my house.

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WOW and was there even an Tornado Warning? I don't even recall during the day that anything was even mentioned, did someone drop the ball? This was 10 minutes from my house.

I don't think anyone expected that last night. As for the warning I don't know for sure but i think the warning was issued for berks after the tornado have moved through lancaster county.

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KDIX 88d showed a pretty decent couplet and even a tornado debris signature on dual pol that lasted for several volume scans. Max delta V was about 65 knots shortly after tornadogenesis occured. The LSR time appears to be off by about 15 minutes based on the radar data I'm looking at.

I'm surpried given the dual pol signature that there wasn't a warning issued.

Unfortunately Lancaster county is sort of in nomansland for radar coverage... with the radar beam about 9kft AGL for both KDIX and KCCX.

post-40-0-90069000-1350785481_thumb.png

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KDIX 88d showed a pretty decent couplet and even a tornado debris signature on dual pol that lasted for several volume scans. Max delta V was about 65 knots shortly after tornadogenesis occured. The LSR time appears to be off by about 15 minutes based on the radar data I'm looking at.

I'm surpried given the dual pol signature that there wasn't a warning issued.

Unfortunately Lancaster county is sort of in nomansland for radar coverage... with the radar beam about 9kft AGL for both KDIX and KCCX.

I think I just boldened a "cause and effect" for you ;)

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I think I just boldened a "cause and effect" for you ;)

Oh yeah... unfortunately Lancaster County is just covered poorly all around. Ironic since it's such a severe weather hotbed in the commonwealth!

Hindsight is 20/20... and this is not really a criticism given the aforementioned challenge... I was just saying that once the TDS appeared I'm surprised they didn't go with a warning. Obviously the lead time wouldn't be great but it would have been something :)

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I will say, at first, looking back at the radar data I wasn't expecting to see a TDS especially given the beam's height! I also was surprised since the tornado traveled over a lot of farmland... it wasn't over a heavily wooded area so I wouldn't expect to see as much debris.

It does look like the TDS was embedded within an area of small hail/graupel as well.

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KDIX 88d showed a pretty decent couplet and even a tornado debris signature on dual pol that lasted for several volume scans. Max delta V was about 65 knots shortly after tornadogenesis occured. The LSR time appears to be off by about 15 minutes based on the radar data I'm looking at.

I'm surpried given the dual pol signature that there wasn't a warning issued.

Unfortunately Lancaster county is sort of in nomansland for radar coverage... with the radar beam about 9kft AGL for both KDIX and KCCX.

That same cell had been TOR warned down in MD as well if I'm not mistaken. Am kinda surprised that the warning was not carried over from the MD warning when the cell crossed into PA.

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