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Convective Initiation

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CI Algorithm output examples from 5 minute Meteosat-8 SEVIRI data from 08 June 2007. The top two images are at time 1 (1024 UTC), the middle two images are time 2 (1029 UTC). For the top two rows, the left side is the 10.7 micron channel image and the images on the right are the defined objects. The bottom row on the right is algorithm output valid at 1029 UTC and the bottom image on the left is the actual IR image in the future at 1124 UTC.
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The higher spatial and temporal resolution of the ABI will allow forecasters to keep up with a rapidly evolving convective environment. The primary spectral band used in the Convective Initiation algorithm will be the longwave window infrared band. This will be used to detect rapidly cooling cloud tops and the cloud type. These two products used in tandem will allow forecasters to identify where convective initiation is occurring, where it is likely to occur, and where it has already initiated. Forecasters will use the information provided by the convective initiation algorithm to create public awareness of a potential severe weather event long before any severe weather is reported.