#2 Postby Steve » Wed Apr 06, 2005 9:07 pm
Looks like that cold tongue off South America (which has been mostly there the last several years) doesn't seem to want to go away. Seems like 1997 had some type of major volcanic activity in the WPAC if I remember correctly and the hot water propagated itself across the ocean. As of today's OTIS SSTA, it looks like the Pacific AS A WHOLE is slightly El Nino (borderline neutral). But what's been interesting is that we've had pretty much of a persistent SW flow almost all winter (whenever a cold front didn't blow through and deep into the GOM), and that SW is pretty typical for El Nino winters. Additionally, the southern branch of the jet stream got pretty active on several occasions in the fall and winter - another sign (somewhat) of El Nino conditions. But the SST's don't really bear anything out conclusively.
Steve
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