Is 0.0000002630 times the speed of light as fast as a Tornado?
It's about one-and-two-fifths times as fast as a Tornado
The speed of a Tornado is about 0.00000018415890 times the speed of light.
(EF2) (wind speed range average)
According to the Enhanced Fujita scale implemented by the US National Oceanographic and Atmospheric Administration, a "significant" tornado has an Enhanced Funjita scale classification of EF2 and is characterized by wind gust speeds between 0.00000016402810 times the speed of light and 0.00000020428960 times the speed of light. The largest recorded tornado — an F4 event occurring in Nebraska in May, 2004 — was almost 4.02 km (2.5 mi) across.
There's more! See other comparisons to 0.0000002630 times the speed of light...