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<h2>El Niño Arrives; Expected to Persist through Winter 2009-10</h2>
<p id="releaseDate">July 9, 2009 </p>
<p>NOAA scientists today announced the arrival of El Niño, a climate phenomenon with a significant influence on global weather, ocean conditions and marine fisheries. El Niño, the periodic warming of central and eastern tropical Pacific waters, occurs on average every two to five years and typically lasts about 12 months. </p>
<p><a href="http://www.noaanews.noaa.gov/stories2009/20090709_elnino.html">http://www.noaanews.noaa.gov/stories2009/20090709_elnino.html</a></p></div>
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<div>My comment:</div>
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<div>This may result in next winter being drier than the past few winters for the Northwest US. As temperatures are predicted to hit the upper 90s F. the next few days in Moscow, this news may be unseasonal; but the arrival of an El Nino event is significant if you worry about plans for the snow removal budget in North Idaho. Also, El Nino may have more immediate effects on US weather in other areas, and of course globally. Caps as appearing on NOAA website below (no intent to yell):</div>
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<div><a href="http://www.cpc.ncep.noaa.gov/products/predictions/90day/fxus05.html">http://www.cpc.ncep.noaa.gov/products/predictions/90day/fxus05.html</a></div>
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<div>SEA SURFACE TEMPERATURES <a href="http://www.cpc.ncep.noaa.gov/products/predictions/90day/seasglossary.html#ssts">(SSTS)</a> IN THE EASTERN AND CENTRAL EQUATORIAL PACIFIC OCEAN ARE NOW WELL ABOVE NORMAL AND <a href="http://www.cpc.ncep.noaa.gov/products/predictions/90day/seasglossary.html#cpc">CPC</a> HAS DECLARED AN <a href="http://www.cpc.ncep.noaa.gov/products/predictions/90day/seasglossary.html#el nino">EL NINO</a> IN EFFECT. WATER TEMPERATURES ARE WELL ABOVE NORMAL IN THE UPPER 200 METERS OF THE TROPICAL PACIFIC OCEAN, MAKING IT LIKELY THAT ABOVE NORMAL <a href="http://www.cpc.ncep.noaa.gov/products/predictions/90day/seasglossary.html#ssts">SSTS</a> WILL CONTINUE INTO THE REST OF SUMMER, FALL AND WINTER. THE CFS MODEL CORRECTLY ANTICIPATED THIS RAPID TRANSITION IN ITS FORECASTS FOR THE LAST FEW MONTHS, AND ITS CURRENT FORECAST SHOWS <a href="http://www.cpc.ncep.noaa.gov/products/predictions/90day/seasglossary.html#sst">SST</a> <a href="http://www.cpc.ncep.noaa.gov/products/predictions/90day/seasglossary.html#anomalies">ANOMALIES</a> APPROACHING 2 KELVIN IN THE COMING FEW MONTHS, SUGGESTING THAT MODERATE <a href="http://www.cpc.ncep.noaa.gov/products/predictions/90day/seasglossary.html#el nino">EL NINO</a> CONDITIONS WILL CONTINUE THROUGH THE END OF THE YEAR. </div>
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<div>THE TEMPERATURE OUTLOOK FOR ASO 2009 CALLS FOR AN ENHANCED LIKELIHOOD OF ABOVE NORMAL TEMPERATURES ACROSS THE SOUTH FROM ARIZONA TO FLORIDA. ABOVE NORMAL TEMPERATURES ARE FAVORED IN NORTHERN NEW ENGLAND. CHANCES FOR BELOW NORMAL TEMPERATURES ARE ENHANCED IN THE MIDWEST AND UPPER PLAINS. ELSEWHERE, EQUAL CHANCES OF BELOW, NEAR, AND ABOVE NORMAL TEMPERATURES ARE PREDICTED. <br>
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<div>A <a href="http://www.cpc.ncep.noaa.gov/products/predictions/90day/seasglossary.html#trend">TREND</a>-RELATED DRY FORECAST IS <br>INDICATED FOR THE PACIFIC NORTHWEST. </div>
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<div>BELOW MEDIAN PRECIPITATION IS <br>FAVORED IN <a href="http://www.cpc.ncep.noaa.gov/products/predictions/90day/seasglossary.html#el nino">EL NINO</a> WINTERS FOR THE PACIFIC NORTHWEST AND PARTS OF THE OHIO AND TENNESSEE RIVER VALLEYS. </div>
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<div>Vision2020 Post: Ted Moffett</div>