Scenario 3: Tropical Storm Isaias forms, heads north and makes landfall on the Gulf Coast, bringing strong winds and storm surge on top of heavy rain. This scenario would be the most impactful outcome, although Isaias would still likely stay below hurricane strength.

Ask people which app they use most frequently on their phones, and they’re likely to pick one of five types: a messaging app, a maps app, a web browser, a clock app, or a weather app. If they go with a weather app, it could be one of many. In fact ...

(CNN) — An already-strong El Niño just turned super as the phenomenon crosses into unprecedented territory. The natural climate cycle has been strengthening at a breakneck pace since it was first declared in June and is stronger now than it’s ever ...