« Back to Glossary IndexA 30, 40 or 50 percent chance of occurrence of measurable precipitation.Related Articles:Re: NZ tornadoes New PlymouthSignficiant Weather and Rainfall Event 15th November 2014Re: Northern NSW / Southern QLD Major Flooding: mid January 2011 onwardsHurricane Blanca - Earliest second hurricane on recordTamworth supercells 3rd December 2012« Back to Glossary Index