La Niña struggling to emerge

Not many people spend a lot of time talking about La Niña because the overall impacts are far less than El Nino but it’s still an important trend to watch.

A La Nina year means the trade winds, East to West from South America are stronger and cold water bubbles up to surface. We use the same region of the Pacific to determine a La Nina year.

This cooling trend tends to kill the East Pacific hurricane season, ramp up the Atlantic hurricane season, bring dry weather to Southern California, and wet weather to the Pacific Northwest.