9 JUNE 1998. FORECAST
"Record-breaking global temperatures were found in each
of the first five months of 1998. During those months, the average global
surface temperature was 1.76 degrees above an average of 61.7 degrees for
the benchmark period of 1961 to 1990. "One consensus that is emerging is
that this El Nino is in its dying stages. Unlike the last El Nino event
that lingered on from mid-1990 to mid-1995, El Nino 1997-1998 is showing
clear signs of weakening with all indices diminishing. [3] There is considerable
uncertainty, however, about the rate of weakening. One model has conditions
moving rapidly towards normal by mid-1998, and another has El Nino lingering
on towards the end of the year. "A more pronounced harbinger of change
to come is in the sea level. From a peak of 33 cm above normal, [6] the
sea level off the coast of South America has lowered 15 cm, as the ocean
is beginning to rise again in the western Pacific. Cooler, nutrient-rich
water from the thermocline is starting to well up offshore. A mass of cool
water some 55 m below the sea surface, measured along the equator by the
TAO buoy array, [7] is moving towards South America's coast. Sea-surface
temperatures have returned to normal along coastal Peru south of 14xS.
Anchovy and sardine catches have returned to normal in that region." [8]"--
http://www.wmo.ch/nino/updat.html VIA Bruce Wright <Bruce.Wright@noaa.gov>
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1997 El Niño/Southern Oscillation (ENSO 97-98)