May 5, 2007
0630 z
North and Western Hemisphere.
Doppler radar is not early enough for the vortices that are 'beginning' at a higher level altitude. These vortices are organizing about 9-10,000 feet up. By the time Doppler is picking this up, it's all over.
The 'white' cloud mass should be enough to start sounding 'watches.' Tornado watches, severe storm watches. The first inkling of 'white' clouds should be enough.
