Proof That Marriage Exists in the Animal Kingdom

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Proof That Marriage Exists in the Animal Kingdom
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Whats in Store for the Short Term?
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NOAA Operational Definitions for El Niño and La
Niña
El Niño characterized by a positive ONI
greater than or equal to 0.5C. La Niña
characterized by a negative ONI less than or
equal to -0.5C. By historical standards, to be
classified as a full-fledged El Niño or La Niña
episode, these thresholds must be exceeded for a
period of at least 5 consecutive overlapping
3-month seasons. CPC considers El Niño or La
Niña conditions to occur when the monthly Niño3.4
SST departures meet or exceed /- 0.5C along
with consistent atmospheric features. These
anomalies must also be forecasted to persist for
3 consecutive months.
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Sea Surface Temperature
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SST Departures (oC) in the Tropical Pacific
During the Last 4 Weeks
During the last 4-weeks, equatorial SSTs were at
least 1.0C above average across much of the
central and eastern equatorial Pacific.
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Typical US Temperature, Precipitation and Jet
Stream Patterns during El Niño Winters
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Summary

• El Niño is present across the equatorial
  Pacific Ocean.
• Sea surface temperatures (SST) remain 0.5 to
  1.5ºC above-average across much of the
  equatorial Pacific Ocean.
• Based on current observations and dynamical
  model forecasts, El Niño is expected to
  strengthen and last through Northern Hemisphere
  winter 2009-10.

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Nov-Dec during El Nino 110 gtNormal
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Jan Mar during El Nino
Near Normal to 110 gtNormal East
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