With the recent trend of cooling in the tropical eastern Pacific and the increasing probabilities of at least a weak La Niña this coming Fall/Winter, I have updated many of the resources on EL NIÑO / LA NIÑA RESOURCE PAGE. Some these are:
California La Niña Precipitation Climatology
California El Niño Precipitation Climatology
US Winter Precipitation & Temperature Climatologies: El Niño | La Niña
Oceanic Nino Index (ONI) (updated monthly)
Worldwide SST Historic Anomalies
Mega-Caveat: Please use these climatologies with great caution, primarily as a way of "book-ending" the range of possibilities, NOT as a forecasting tool. The two most recent events (i.e., Very Strong El Niño in 2015-16 and the Weak La Niña in 2016-17) were poster children for "All ENSO" events do not behave the same" and that there are lots of other global factors to consider.
Jan Null, CCM
Certified Consulting Meteorologist
Golden Gate Weather Services
Email: jnull@ggweather.com
Web: http://ggweather.com
Twitter: https://twitter.com/ggweather
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