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- The EFI fields for both CAPE and CSP show where severe convection is likely if it initiates. This means that in general high EFI values include also areas where DMC does not develop, for example because a capping inversion, as denoted by convective inhibition (CIN), is too strong. To help determine whether DMC will initiate or not one can employ also the probability forecast for precipitation (for example), in conjunction with the EFIs for CAPE and CSP (Figure 1).
- The EFI shows the extremity of a given parameter compared to the model climate. Hence high values of the EFI may appear will sometimes be seen in areas where no severe convection develops because the absolute values of the convective parameters are relatively small This happens when even the more extreme values of the convective parameters in the model climate are too low. For example this can happen also relatively small, as might be seen over the continents in winter. In such a scenario one should not expect deep moist convection. Conversely a large CSP EFI would be particularly concerning if seen in an area and at a time where organised DMC was relatively common.
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