Regional Outbreaks of Severe Weather Through Early Next Week; Early Season Heat Wave across the South

Active spring pattern across the center of our nation with several episodes of severe weather and heavy rainfall expected into next week. The potential for very large hail, long track tornadoes, severe wind gusts, frequent cloud to ground lightning strikes and flash flooding are in the outlook. Furthermore, dangerous early season heat wave continues for the Gulf Coast states into early next week. Read More >

Automatically generated image showing areas of convective inhibition.


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4 Panel Display | Animated Loop

CIN

The image is a surface based measurement of Convective INhibition (CIN) or what is sometimes more commonly referred to as the strength of the cap. The value is capped off at 500 J/KG. In cases where there is no surface based CAPE available this parameter is set to 500 J/KG.

The yellow contours are the Lid Strength Index (LSI). This is another measure of how strong the cap is. It shows the thermal difference between a lifted surface parcel and the warmest part of the cap. Higher values indicate a more stable layer.

In general, the Cap is said to be breakable when CIN is 30 J/Kg or less and/or the LSI is 2 degrees or less. A negative LSI is rare, but is indicative of freely buoyant low level instability.

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Regional Outbreaks of Severe Weather Through Early Next Week; Early Season Heat Wave across the South

ConvectiveParameters - CIN