From Leopard Gecko Wiki
A Typhoon is the Rainwater Albino version of the RAPTOR. It is a combination morph that is homozygous for Rainwater Albino, Eclipse, and Patternless. Of the three different albino strains, the Typhoons were the last to be crossed into the Eclipse trait.
The challenge in making both the Typhoon and the RADAR was to ensure the Eclipse trait did not carry any Tremper Albino genes in it. Since the three different albino strains are not compatible, it is usually frowned upon to cross different albino strains. In order to ensure the gecko carrying the Eclipse trait for the Typhoon and RADAR projects did not carry Tremper Albino, years of cross breeding had to be conducted.
- Baronak, Matt.