NMDA Failure in Low Level Scans

The NMDA failed to be of use on a tornadic cell east of Des Moines. A strong meso was detected by radar, but it was above the tilts that the NMDA was sampling to generate its output, so it generated ‘weak’ strength of the meso. It should be noted that the cell was only 21 nm from the RDA at this time (2013Z).

Strong AzShear is present on mid level cuts of the KDMX radar (3.1 degrees and above). The NMDA was sampling below these levels however to generate its output, and therefore missed the strong rotation aloft.

– Bacon Wrapped Hail