Overview
- Tropical Storm Simon is rapidly strengthening and the NHC forecasts it could become a very dangerous Category 4 hurricane before reaching Mexico’s Jalisco, Colima and Michoacán coast with 8 to 25 inches of rain and life‑threatening flooding and mudslides.
- Tropical Storm Rachel is tracking toward northern Baja and the northern Gulf of California and will produce large swells along Southern California that create life‑threatening surf and rip currents while its moisture could move inland over the Great Basin and parts of Arizona and Utah causing flash floods.
- Hurricane Isaias strengthened into the first hurricane of the 2026 Atlantic season and is projected to make landfall on the northern Gulf Coast with warnings for several feet of storm surge, damaging winds, tornadoes and state emergency declarations in parts of Alabama and Florida.
- Forecasters say El Niño and unusually warm Pacific waters are increasing rapid intensification risk and shortening lead times for impacts, and recent heavy rains and saturated soils raise the danger of landslides in mountain and coastal areas.
- Watches, warnings and emergency preparations are in effect and forecasts remain sensitive to short‑term shifts, so residents should monitor NHC and local emergency guidance for updates and evacuation instructions.