NOAA Issues Stark Warning About Upcoming El Niño

NOAA says an El Niño is likely to form in July and last through winter.

Warmer Pacific waters could increase the frequency of high-tide flooding on the U.S. West and East Coasts.

The risk is especially concerning because it may add to already elevated flooding from long-term sea level rise.

Officials warn that a strong El Niño could also affect broader weather and climate patterns.