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Applied Performance Drills: Supercell Signatures

In order to be classified as a supercell which of the following signatures are needed:

Persistent low level

Midlevel mesocyclone associated with sufficient updraft signature

Persistence of midlevel mesocyclone and updraft signature (15 minutes or more)

When viewing reflectivity what should you look for to help identify a supercell?

Low-level notch

WER/BWER

Echo overhang

Hook echo

When viewing ZDR what should you look for to help identify a supercell?

ZDR arc

ZDR column

ZDR minimum

ZDR non continuity

When viewing Velocity what should you look for to help identify a supercell?

Wide distance between inbound and outbound pixels

Midlevel mesocyclone

Low-level mesocyclone

Enhanced inbound echos associated colocated with the most intense part of the precipitation core.

When viewing CC what should you look for to help identify a supercell?

High CC values

Low level divergence

Low CC values

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