Severe Thunderstorms and Heavy Rain in the Southern Plains; Fire Weather Threat in the Southwest U.S.

Thunderstorms, some severe, may produce heavy to excessive rainfall and isolated flooding over portions of the Southern Plains today and Saturday. Dry conditions, combined with gusty winds and low relative humidities will continue to support an elevated to critical fire weather threat in the Desert Southwest into to early next week. Read More >

Automatically generated image showing areas of the convective interest parameter.


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Convective Interest

This is a highly experimental index which attempts to show areas where surface based convection is favorable or may initiate within the next hour. The index uses a combination of several fields, (CAPE, CIN, low level lapse rates, moisture convergence, satellite, and most unstable LI) to develop a number between -100 and 100. Negative values are indicative of an environment not supportive of surface based convection. The higher the value, the more favorable the environment is for surface based convection. Values greater than 70 are suggestive that convective initiation will likely occur within the next hour in that region. This index works best in regimes of airmass (or pulse) convection or on days where the cap is the primary inhibiting factor for convection.

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Severe Thunderstorms and Heavy Rain in the Southern Plains; Fire Weather Threat in the Southwest U.S.

Convective Parameters - Convective Interest