[Ncep.list.emc.monsoondesk] Weekly Updates of Global Monsoon Systems

[Muthuvel Chelliah - NOAA Federal]

The weekly PowerPoint presentations summarizing the recent variability of
the global monsoon systems (NAMS.ppt, AFMS.ppt and AAMS.ppt) have been
updated on the CPC Global Monsoons website:
http://www.cpc.ncep.noaa.gov/products/Global_Monsoons/Global-Monsoon.shtml

*HIGHLIGHTS:*



*African Monsoons (AFMS.ppt):*



Moisture surpluses prevailed across portions of the central Africa region,
extending into western Ethiopia.  Weekly total rainfall was below-average
over many places in the Gulf of Guinea countries.

Week-1 outlooks call for an increased chance for above-average rainfall
over Guinea-Conakry, southern Mali, western Burkina Faso and western
Ethiopia. In contrast, there is an increased chance for below-average
rainfall over portions of Cote d’Ivoire, Ghana, Togo, Benin, and Nigeria.



*Asian-Australian Monsoons (AAMS.ppt):*



For the past 90 days, the precipitation pattern over  entire India,
Pakistan, Afghanistan, Burma, and almost all of China was at near-normal or
slightly above normal levels.  However, rainfall was  much below normal
over Laos, North and South Vietnam and Cambodia, Philippines, parts of
Malaysia and Indonesia, and below normal over large parts of northern and
north central Australia. For the past 30 days, precipitation deficits have
intensified over many southeast Asian countries  including Laos, North and
South Vietnam, Cambodia and in southern China especially along the border
of Burma. The advance of SW summer monsoon into central and north India is
delayed by more than a week and it is beginning to show in rainfall
deficits in those regions.

In this past week,  the precipitation was in general slightly below normal
over large parts of south east Asia. Above normal rains fell over the
narrow Western Ghats region and over south central India associated with a
low pressure trough over central Bay of Bengal extending northwestward into
India. The Andhra region of India, where most deaths occurred in May
because of excessive heat, received plenty of rain this past week. For the
next couple of weeks, the NCEP GFS model is predicting the advance of SW
monsoon into northern India and above normal rain in east central China.
Elsewhere, the model predicts below normal rainfall across much of the
southeast Asia.



*North American Monsoons (NAMS.ppt):*



Not available for this week.



*South American Monsoons (SAMS.ppt):*



The South American Monsoon System 2014-2015 wet season has ended. The next
weekly update will be prepared in September 2015. The summary of the
2014-2015 wet season can be found on the following webpage:



http://www.cpc.ncep.noaa.gov/products/Global_Monsoons/American_Monsoons/American_Monsoons.shtml




*For questions or comments, please contact:


Endalkachew.Bekele at noaa.gov (for the African monsoons)

Muthuvel.Chelliah at noaa.gov (for Asian-Australian monsoons)

Vernon.Kousky at noaa.gov (for South American monsoons)

Wei.Shi at noaa.gov  (for North American monsoon update and for general issues
about the CPC Global Monsoons products)
------------------------------------------------
Dr. Muthuvel Chelliah, eMail: Muthuvel.Chelliah at noaa.gov
Rm. 3008, Climate Prediction Center, Ph: (301) 683-3393
NCEP/NWS/NOAA/U.S.Dept.of Commerce,
5830, University Research Court, NCWCP,
College Park, MD 20740
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