Founder
MeteoAct was founded by Chris Hanlon, a PhD meteorologist with over a decade of experience in catastrophe risk management.
MeteoAct builds probabilistic weather risk tools for organizations that make expensive decisions when severe weather threatens.
A decision-maker facing a storm needs to know the probability of a specific outcome at a specific place: winds above a threshold at a facility, losses above a retention on a book of business, arrival before a deadline. Because most weather forecast information is not tailored to specific decisions, knowing what to do before a storm can be challenging for many decision-makers.
The range of possible outcomes in a forecast is known as “the envelope of uncertainty.” We named our hurricane decision-support system Envelope because when a storm is coming, you never know exactly what will happen but you can make intelligent decisions if you can quantify the range.
As a hurricane approaches, MeteoAct Envelope generates an ensemble of physically consistent storm scenarios, translates those scenarios into wind probabilities, and then translates those probabilities into recommended courses of action, allowing decision-makers to perform a well-calibrated cost-benefit analysis.
Five real hurricanes, advisory by advisory, through the eyes of a decision-maker.
Step through a storm →Below is the MeteoAct Envelope forecast as it would have looked on each of the seven days before Melissa made landfall in western Jamaica as a Category 5 on October 28, 2025.
MeteoAct was founded by Chris Hanlon, a PhD meteorologist with over a decade of experience in catastrophe risk management.