The building maintenance scheduled for Friday February 27th at 5:00pm MST has been postponed until 5:00pm March 6th. PSD's website will be down during the maintenance.

View NCEP Data Source

1991-92 El Niño Animation

SST Animation

Restart Animation

Anomaly   =   (Current Observation   -   Corresponding Climatological Value)
Base period for the climatology is 1950-1979