Space weather forecasters have issued an alert for incoming severe solar storms. Such storms could bring northern lights to many U.S. states and temporarily disrupt communications. The sun has burped out several bursts of energy called coronal mass ejections that could reach Earth Tuesday night and early Wednesday. Forecasters said the vibrant displays could be visible across much of the northern U.S., and as far south as Alabama to Northern California. The sun is at the maximum phase of its 11-year activity cycle, making the light displays more common and widespread.