PHS vs Visible Satellite and Radar

PHS was a bit slower with the convection entering the DMX CWA compared to visible satellite initially. However, by 22Z it looks like it caught up!

PHS Composite Reflectivity overlayed on Visible Satellite (right) vs only Visible Satellite (left)

Looking at 22Z (once the timing was better aligned), I was curious how the reflectivity in PHS looked compared to the radar. The overall shape and look of the broken line of storms lines up fairly well (even with the model smoothing things out). The intensity didn’t look like it matched up at first because I was looking for “red”. But, when using the sampling tool and seeing the values, the yellow-green colors in PHS indicated 63-67 dBZ (where the label DMX is in the image).


PHS Composite Reflectivity (right) versus KDMX radar reflectivity (left)


Overall, I think PHS is proving to be valuable with CI (as seen in Day 1) as well as adjusting as storms evolve (such as timing in this case).

Forecaster Cumulus

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