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Long-Lived Supercell Storms
August 25th-26th, 2006

Summary

A few Supercell thunderstorms developed well to the north of a warm front draped over Southwestern PA, and dropped into Central Pennsylvania from the north during the evening of the 25th. The storms formed in a high shear environment (as indicated by the 00z 26th sounding from KBUF - right at the genesis of these cells)

Many of these storms exhibited very strong and deep rotation, and were very long-lived. See the image loop below and follow the track of a monster storm that began near Buffalo, NY and did not dissipate until it hit the Atlantic coast of NJ !! That storm produced severe weather all along it's path despite being well back in the cooler, more stable air.

Images

loop of storms
Loop of long-lived Supercell Storms (courtesy of Al Cope, SOO, NWS Mount Holly, NJ)

Warning boxes and severe weather reports
Severe Weather Warnings (boxes), and severe weather reports from the evening of the 25th and early morning of the 26th of August, 2006. (courtesy NWS RLX)


(click these pics for a full-size view)

KBUF 00z sounding
KBUF Balloon Sounding from 00UTC 26 Aug 2006

IR Sat Picture with lightning overlaid
Infrared Sat Pic with past 15 minute Lightning Strikes

IR Sat Picture with lightning overlaid
Infrared Sat Pic with past 15 minute Lightning Strikes

Radar Reflectivity of two supercells
KCCX Reflectivity of two big supercell thunderstorms in McKean and Tioga Counties.

Storm Relative Motion of two supercells
KCCX Storm Relative Motion pictures of two big supercell thunderstorms in McKean and Tioga Counties.

Radar Reflectivity of two supercells
KCCX Reflectivity of two big supercell thunderstorms in McKean and Tioga Counties.

Storm Relative Motion of two supercells
KCCX Storm Relative Motion pictures of two big supercell thunderstorms in McKean and Tioga Counties.


 
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Page Last Modified: 28 August 2006 03:31:56 UTC
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