Extreme Storms

Storm report

Bulk Richardson Number

· by Jimmy Deguara

(or BRN) A non-dimensional number relating vertical stability and vertical shear (generally, stability divided by shear). High values indicate unstable and/or weakly-sheared environments; low values indicate weak instability and/or strong vertical shear. Generally, values in the range of around 50 to 100 suggest environmental conditions favorable for supercell development.

Also on 9 November

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