The South American Monsoon System Summary July 2007-June 2008 Update prepared by Climate Prediction Center / NCEP June 2008 For more information, visit:

Slides:

Advertisements

Similar presentations

The African Monsoon Recent Evolution and Current Status Include Week-1 and Week-2 Outlooks Update prepared by Climate Prediction Center / NCEP 23 March.

Advertisements

The South American Monsoon System: Recent Evolution and Current Status

Climate Prediction Center / NCEP

1 The Asian-Australian Monsoon System: Recent Evolution, Current Status and Prediction Update prepared by Climate Prediction Center / NCEP 11 August 2008.

1. Global monsoon features Australian monsoon South American monsoon North American monsoon African monsoon Asian monsoon 2. Northern China winter drought.

Southern Hemisphere: Weather & Climate over Major Crops Areas Update prepared by Climate Prediction Center / NCEP 23 May 2011 For Real-time information:

The South American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 1 October 2012 For more information,

1 The Asian-Australian Monsoon System: Recent Evolution, Current Status and Prediction Update prepared by Climate Prediction Center / NCEP November 22,

The African Monsoon Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 6 December 2010 For more information, visit:

The African Monsoon Recent Evolution and Current Status Include Week-1 and Week-2 Outlooks Update prepared by Climate Prediction Center / NCEP 10 January.

The South American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 30 December 2013 For more information,

The African Monsoon Recent Evolution and Current Status Include Week-1 and Week-2 Outlooks Update prepared by Climate Prediction Center / NCEP 7 February.

The African Monsoon Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 20 April 2009 For more information, visit:

The African Monsoon Recent Evolution and Current Status Include Week-1 and Week-2 Outlooks Update prepared by Climate Prediction Center / NCEP 18 May 2015.

1 The Asian-Australian Monsoon System: Recent Evolution, Current Status and Prediction Update prepared by Climate Prediction Center / NCEP August 9, 2010.

The African Monsoon Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 04 May 2009 For more information, visit:

The South American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 4 January 2010 For more information,

The African Monsoon Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 15 November 2010 For more information, visit:

The South American Monsoon System Summary July 2011-June 2012

The African Monsoon Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 07 July 2008 For more information, visit:

1 The Asian-Australian Monsoon System: Recent Evolution, Current Status and Prediction Update prepared by Climate Prediction Center / NCEP May 27, 2014.

The South American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 9 February 2015 For more information,

The North American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 03 June 2013.

The North American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 01 July 2013.

The African Monsoon Recent Evolution and Current Status Include Week-1 and Week-2 Outlooks Update prepared by Climate Prediction Center / NCEP 26 May 2015.

The African Monsoon Recent Evolution and Current Status Include Week-1 and Week-2 Outlooks Update prepared by Climate Prediction Center / NCEP 28 September.

Climate Prediction Center / NCEP

The African Monsoon Recent Evolution and Current Status Include Week-1 and Week-2 Outlooks Update prepared by Climate Prediction Center / NCEP 19 September.

Madden/Julian Oscillation: Recent Evolution, Current Status and Forecasts Update prepared by Climate Prediction Center / NCEP January 29, 2007.

The African Monsoon Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 6 July 2010 For more information, visit:

1 The Asian-Australian Monsoon System: Recent Evolution, Current Status and Prediction Update prepared by Climate Prediction Center / NCEP December 12,

1 The Asian-Australian Monsoon System: Recent Evolution, Current Status and Prediction Update prepared by Climate Prediction Center / NCEP April 11, 2011.

The African Monsoon Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 23 March 2009 For more information, visit:

The South American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 6 February 2012 For more information,

The African Monsoon Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 08 December 2008 For more information, visit:

Madden/Julian Oscillation: Recent Evolution, Current Status and Forecasts Update prepared by Climate Prediction Center / NCEP April 3, 2006.

The African Monsoon Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 11 August 2008 For more information, visit:

1 The Asian-Australian Monsoon System: Recent Evolution, Current Status and Prediction Update prepared by Climate Prediction Center / NCEP 14 July 2008.

1 The Asian-Australian Monsoon System: Recent Evolution, Current Status and Prediction Update prepared by Climate Prediction Center / NCEP August 16, 2010.

The African Monsoon Recent Evolution and Current Status Include Week-1 and Week-2 Outlooks Update prepared by Climate Prediction Center / NCEP 31 May 2011.

The South American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 20 December 2010 For more information,

The South American Monsoon System Summary September 2012-May 2013 Prepared June 2013 by Climate Prediction Center / NCEP In collaboration with Instituto.

The African Monsoon Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 4 October 2010 For more information, visit:

1 The Asian-Australian Monsoon System: Recent Evolution, Current Status and Prediction Update prepared by Climate Prediction Center / NCEP September 26,

The South American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 7 November 2011 For more information,

The African Monsoon Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 26 May 2009 For more information, visit:

1 The Asian-Australian Monsoon System: Recent Evolution, Current Status and Prediction Update prepared by Climate Prediction Center / NCEP July 12, 2010.

1 The Asian-Australian Monsoon System: Recent Evolution, Current Status and Prediction Update prepared by Climate Prediction Center / NCEP June 14, 2010.

The African Monsoon Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 29 June 2009 For more information, visit:

The South American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 18 April 2011 For more information,

The South American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 18 November 2012 For more information,

The South American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 18 May 2015 For more information,

The South American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 21 November 2011 For more information,

The South American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 11 October 2009 For more information,

The South American Monsoon System Summary September 2014-May 2015 Prepared by Vernon E. Kousky Climate Prediction Center / NCEP June 2015 For more information,

1 The Asian-Australian Monsoon System: Recent Evolution, Current Status and Prediction Update prepared by Climate Prediction Center / NCEP 27 July 2009.

The African Monsoon Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 13 September 2010 For more information, visit:

The South American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 23 March 2015 For more information,

The South American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 4 June 2012 For more information,

The African Monsoon Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 09 November 2009 For more information, visit:

1 The Asian-Australian Monsoon System: Recent Evolution, Current Status and Prediction Update prepared by Climate Prediction Center / NCEP 6 October 2008.

1 The Asian-Australian Monsoon System: Recent Evolution, Current Status and Prediction Update prepared by Climate Prediction Center / NCEP June 27, 2011.

The South American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 16 February 2015 For more information,

The South American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 30 March 2015 For more information,

The South American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 2 November 2015 For more information,

1 The Asian-Australian Monsoon System: Recent Evolution, Current Status and Prediction Update prepared by Climate Prediction Center / NCEP November 7,

1 The Asian-Australian Monsoon System: Recent Evolution, Current Status and Prediction Update prepared by Climate Prediction Center / NCEP March 25, 2013.

The South American Monsoon System: Recent Evolution and Current Status Update prepared by Climate Prediction Center / NCEP 19 December2016 For more information,

The South American Monsoon System: Recent Evolution and Current Status

Presentation transcript:

The South American Monsoon System Summary July 2007-June 2008 Update prepared by Climate Prediction Center / NCEP June 2008 For more information, visit:

Outline Onset phase Mature phase Decay phase Long-Term Departures from Average Summary

Precipitation Climatology ONSET DATES

Precipitation Departures: Onset Phase (Sep-Nov 2007) During the 90-day period (1 September-30 November 2007) rainfall was below normal over most of Brazil, with rainfall deficits exceeding 175 mm in portions of the southern Amazon, and central and southeastern Brazil (red oval). Above-normal rainfall was observed over southern Colombia, northern Peru, Ecuador, eastern Bolivia, most of Paraguay and portions of southern Brazil and Uruguay.

Mean and Anomalous 200-hPa Winds and 500-hPa Vertical Motion An anomalous cyclonic circulation center was located near the central coast of Chile and an anomalous anticyclonic circulation center was located over the western Atlantic. Enhanced upward vertical motion (negative omega) extended from southern Colombia south- southeastward over western Brazil, eastern Bolivia, Paraguay, northeastern Argentina and southern Brazil. Anomalous downward vertical motion (positive omega) covered central Chile and most of central and eastern Brazil. C A

Precipitation Departures: Mature Phase (Dec 07-Feb 08) During the 90-day period (1 December February 2008) rainfall was below normal over most of Brazil south of the equator, with rainfall deficits greater than 250 mm in portions of central and southeastern Brazil (red oval in right panel). Above-normal rainfall was observed over southern Colombia, Peru, Ecuador, Bolivia, Paraguay, northern Chile and northwestern Argentina.

Mean and Anomalous 200-hPa Winds and 500-hPa Vertical Motion An anomalous anticyclonic circulation center was located near the northern coast of Chile. This represents a southwestward shift in the mean position of the Bolivian Anticyclone, which is typically found over western Brazil and eastern Bolivia in Summer. Enhanced upward vertical motion (negative omega) extended from southern Colombia south- southeastward over western Brazil, eastern Bolivia, Paraguay, northeastern Argentina and southern Brazil. Anomalous downward vertical motion (positive omega) covered central Chile and northeastern Brazil. A

Precipitation Climatology END DATES

Precipitation Departures: Decay Phase (Mar-May 08) During the 90-day period (1 March-31 May 2008) rainfall was below normal over the southern Amazon, southern Brazil, Uruguay and eastern Argentina. Above-normal rainfall was observed over southern Colombia, Ecuador, Peru, the eastern Amazon and northeastern Brazil.

Mean and Anomalous 200-hPa Winds and 500-hPa Vertical Motion Anomalous anticyclonic circulation covered the low- latitudes of the western Atlantic. An anomalous trough was located over southern Brazil and northeastern Argentina. Enhanced upward vertical motion (negative omega) covered northwestern South America, extending southeastward to portions of southern Brazil. Anomalous downward vertical motion (positive omega) covered central Chile, eastern Argentina and Uruguay. A

Precipitation Departures: July 2007-June 2008 During the period 1 July June 2008 rainfall was below normal the southern Amazon, portions of southeastern and southern Brazil, portions of Uruguay and eastern Argentina. Above-normal rainfall was observed over southern Colombia, Ecuador, most of Peru, the eastern Amazon and northeastern Brazil. NOTE: There is a lack of data for Colombia and Venezuela, so the deficit in rainfall over those regions is not real.

Precipitation Anomaly Patterns during La Niña Episodes over Brazil From Silva et al., The pattern of anomalous precipitation over Brazil for the water year (July 2007-June 2008, figure above) is consistent with the La-Nina composite.

Summary The rainy season onset was delayed over the southern Amazon, central and southeastern Brazil. This resulted in large rainfall deficits (greater than 250 mm) in some areas during September-November Rainfall was above average over southern Colombia, Ecuador and northern Peru. Rainfall was below average in central and southeastern Brazil during December 2007-February 2008, with deficits greater than 250 mm in some areas. Rainfall was above average over the northern Amazon, southern Colombia, Ecuador, Peru, Bolivia, northern Chile and northwestern Argentina. Rainfall was above average over central and northeastern Brazil during March-May 2008, with surpluses exceeding 250 mm in many areas. Rainfall was also above average over southern Colombia, Ecuador and Peru. Rainfall was below average over southern Brazil, eastern Argentina and Uruguay. The pattern of rainfall departures for the water year (July 2007-June 2008) is similar to the composite for La Niña episodes.