And if people won't move? Well, Hambleton thinks the best hope would be to turn them into citizen scientists. If everyone had their own rain gauges and were contributing data to our scientific understanding of their area's own microclimate, he thinks it may be possible to eventually create a mudslide warning system. "That's almost the only way to know," he says of a rain gauge. "You can see, whoop! We're getting a lot of rain, high intensity, high flow in this area." He thinks it could people just enough time to get out of the way. "Not hours, certainly not days," he says. "It'd be minutes."