Welcome to RainbowChase!

Download the PDF of Dr. Businger’s paper, “The Best Rainbows on Earth.”

RainbowChase is the only app available that provides guidance to bring more rainbows into your life.

The RainbowChase app is fully functional only on O‘ahu in the Hawaiian Islands at this time.

In addition to helping you find rainbows, RainbowChase provides a wealth of weather data in the Nowcast screen.