Results of the first real-time dual wavelength radar hail detection are given. The fundamental theoretical basis for detection is briefly discussed and preliminary qualitative conclusions are drawn as to the physical significance of the measurements. The results show that hail signatures gradually become more likely in regions of increasing reflectivity. The data support the concept of water storage in severe convective storms, but suggest that such regions are not necessarily accompanied by the growth of large hail.

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Footnotes

1 Laboratory for Atmospheric Probing, Chicago, Ill. 60637.

2 Boulder, Colo. 80302.

3 Champaign-Urbana, Ill. 61801.