A more accurate weather forecast could start with these high-flying drones

For nearly a century, reading the upper sky has meant tying a box of sensors to a balloon, letting go, and kissing the hardware goodbye. And they only go up at fixed times. If a storm starts brewing between launches, nobody’s up there to see it. Meteomatics, a Swiss weather technology company, thinks we can get better weather data. It recently introduced Strato, a multicopter drone made to study Earth’s atmosphere. It is designed to reach higher altitudes of the troposphere—the p...