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ENSO Alert System Status: El Niño Watch
Climate Prediction Center: ENSO Diagnostic Discussion
Climate Prediction Center: ENSO Diagnostic Discussion
Synopsis: ENSO-neutral is expected to continue through the Northern Hemisphere spring 2014, with about a 50% chance of El Niño developing during the summer or fall.
ENSO-neutral continued during February 2014, with below-average sea surface temperatures (SST) continuing in the eastern equatorial Pacific Ocean and above-average SSTs increasing near the International Date Line (Fig. 1). Overall, the weekly Niño indices were variable during the month, with most indices remaining less than -0.5oC (Fig. 2). A significant downwelling oceanic Kelvin wave increased the oceanic heat content (Fig. 3) and produced large positive subsurface temperature anomalies across the central and east-central Pacific (Fig. 4). In addition, toward the end of the month, strong low-level westerly winds re-appeared over the western equatorial Pacific. Convection was suppressed over western Indonesia and the central equatorial Pacific (Fig. 5). Collectively, these atmospheric and oceanic conditions reflect ENSO-neutral.