How is Hail Formed?
How are HailTrax™ and HailExpress™ products different than other hail products out there? HailTrax™ and HailExpress™ utilize a patented HailSwath Predictive Algorithm (HPA) in combination with NEXRAD Doppler radar and observed hail data from National Weather Service (NWS) observers. HailTrax™ then extracts hail size and the geographic coordinates where hail fell. Data disseminated by the National Climatic Data Center (NCDC) and most commercial weather vendors, only contain observed hail reports from NWS observers. Why are the increments of no hail detected, up to 3/4″, 3/4″ to 2 inches and greater than 2″ detected, used as the scale? The NWS accepted standard definition of damaging hail is considered to be ¾” and greater. Hail above 2″ is a relatively rare occurrence, but can cause significant damage when it occurs. How accurate is HailTrax™? HailTrax™ reports are the most sophisticated and accurate hail verification reports available. Scientific evidence indicates hail detected and re