National Weather Service United States Department of Commerce

Heavy rain in the Central U.S.; Unseasonable Warmth in the East

Imelda remnants swept up with a cold front will produce heavy rain that could cause flash flooding from portions of the South Plains to the Great Lakes. Lorena remnants combined with a cold front will bring thunderstorms with heavy rain, and some severe storms with hail and damaging winds to Arizona Monday. Strong winds in northern California will bring increasing fire weather threats on Monday. Read More >

ENSO and Climate Variability


Understanding ENSO (From PMEL)


ENSO Monitor - State of Current Conditions

From International Research Institute for Climate and Society (IRI): From NOAA Pacific Marine Environmental Lab (PMEL):
From CPC/NCEP:
From NOAA Earth System Research Lab (ESRL):
From Bureau of Meteorology (BoM), Australia:

El Nino Map



El Nino Temperatures and Anomalies


Climatology and ENSO-Related Climate Variability in the Pacific


Tropical Cyclone Climatology in the Pacific

Other Helpful Links