Heat Continues for the East and South-Central U.S.; Strong to Severe Storms Across the Mid-Atlantic and Northeast

The extremely dangerous heat wave continues across the East Coast and much of the South-Central U.S. today. Record high temperatures are expected for some areas especially across the Mid-Atlantic where extreme heat risk conditions reside. There is a Slight Risk (level 2 of 5) of severe thunderstorms today for the northern Mid-Atlantic into portions of southern New England. 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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Heat Continues for the East and South-Central U.S.; Strong to Severe Storms Across the Mid-Atlantic and Northeast

Convective Parameters - Convective Interest