Thursday, May 24, 2018

Parallax Issues: Beware in the Northern Plains and Northern Mississippi Valley regions!

Just looked at a cluster of showers/storms in southwest MN and noticed that the IR satellite image and GLM data are offset (to the north) from MRMS "reflectivity at lowest altitude" radar data by as much as a county!

This parallax issue is something that WFOs and CWSUs across the Northern Plains and Northern Mississippi Valley regions will certainly need to be aware of when they use GOES-16 data, as it may lead them to issue warnings/advisories for the wrong storms!


- Thomas Bell

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