National Weather Service United States Department of Commerce

Severe Weather and Excessive Rain from the Southern Plains into the Mississippi Valley; Winter Storm in the Northwest

More rounds of excessive rainfall and severe weather are expected to push east and southeast toward the Lower Mississippi Valley into Monday. A late-season storm will bring widespread high-elevation snow and lower elevation rain across the Pacific Northwest toward the northern Rockies with increasingly windy conditions to develop over the northern High Plains. Read More >

Rainfall Variations During ENSO


American Samoa Seasonal Rainfall Variations During ENSO
(Values are % of normal)

El Nino Year (0) Year (+1)
Winter Spring Summer Fall Winter Spring Summer Fall
103% 116% 110% 114% 109% 107% 92% 104%
La Nina Year (0) Year (+1)
Winter Spring Summer Fall Winter Spring Summer Fall
114% 87% 94% 90% 99% 86% 72% 81%