The City of Napa and many other public agencies offer an urgent notification service called Nixle. This information service allows public agencies to send real-time alerts and notifications about emergencies, traffic problems, crime watch notices, safety tips and more directly to your cell phone or email. These notifications come to you in a timely fashion to keep you informed about what's happening in the City and County of Napa and the region. This is a free service - you can register on the Nixle website or text your zip code to 888-777.
Please note, you may incur a cost if your cell phone provider charges you to receive text messages, but you do have the option to receive email only and no text messages.