WASHINGTON (AP) — The La Nina phenomenon that may have helped boost last
year’s hurricane season and this spring’s tornadoes has ended.
The Climate Prediction Center said Thursday that the periodic cooling of the
tropical Pacific Ocean known as La Nina ended in May and the ocean returned
to neutral conditions. La Nina and its warm-water opposite El Nino can
affect weather worldwide.
The end of this La Nina could be good news. La Nina years sometimes have
more hurricanes and tornadoes than average, and some researchers say the
phenomenon may have contributed to the twister outbreak in May. In addition,
last summer there were 19 named tropical storms and hurricanes in the
Atlantic and Caribbean, though only one, Hermine in September, did much
damage in the United States.