The April Showers Bring May Hacks with Wunderground and Twilio developer contest is a month-long challenge for developers to build weather-inspired apps that utilize both the Weather Underground and Twilio APIs. The contest aims to encourage innovation and creativity in solving problems related to severe weather warnings, travel, and random number generation. Developers will have two weeks to complete the task, with submissions accepted via a provided form. The winner receives the title of "weather-master" along with a Vantage Vue Wireless Weather Station Underground Package, while second-place prizes include a Kindle stocked with books on programming, weather hacking, and technology. The contest is part of Twilio's monthly developer contests, which encourage developers to build something awesome using Twilio-powered solutions.