National Weather Service United States Department of Commerce

Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Rainfall Variations During ENSO


Pohnpei/FSM Seasonal Rainfall Variations During ENSO
(Values are % of normal)

El Nino Year (0) Year (+1)
Winter Spring Summer Fall Winter Spring Summer Fall
101% 103% 100% 95% 77% 80% 97% 95%
La Nina Year (0) Year (+1)
Winter Spring Summer Fall Winter Spring Summer Fall
78% 105% 83% 96% 114% 119% 115% 97%