Cirrus clouds may have impacted the CI algorithm (click to animate):

Note that the developing convection is evident on the visible satellite.

This convection is associated with >35 dBZ echoes (click to animate):

There is a possibility that the infrared satellite may be weighted too heavily during the day time because it is clear on the visible data there was convective initiation.

Here is what the infrared satellite observed (click to animate):

Note the dense cirrus across the area, which likely impacted the CI algorithm.

Polarimetric Researcher