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

[Wei Shi - NOAA Federal]

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

*HIGHLIGHTS:*



*African Monsoons:*



Above-average rainfall was observed over the far western West Africa.



Portions of the Gulf of Guinea countries, much of South Sudan, western
Ethiopia, Uganda and parts of DRC received below-average rainfall.



Week-1 outlooks call for an increased chance for above-average rainfall
over parts of Guinea-Conakry, Sierra Leone, Liberia, Cote d'Ivoire, Ghana,
and Togo. In contrast there is an increased chance for below-average
rainfall across parts of Sudan, South Sudan and Uganda.



*Asian-Australian Monsoons:*



For the past 90 days,  with the summer monsoon about to end soon,  below
normal rainfall deficits dominate southwestern and southern peninsular
India, a small region in interior central eastern China, southeastern
Australia, Malaysia, Indonesia, and Papua New Guinea. Elsewhere, the
rainfall amounts received were at normal to slightly above normal levels,
particularly in  Bangladesh, Burma, Cambodia, Laos, the Philippines, and
Vietnam.  For the past 30 days, rainfall deficits are noted across large
parts of southern and western India, in large parts of eastern central and
eastern China, Thailand, Burma, large parts of Indonesian islands and
Malaysia. Elsewhere rainfall received was at normal to above normal levels.



In this past week, rainfall amounts are generally below normal everywhere
in the region, large deficits occurred over southern/peninsular and central
India and most of Indonesia.. According to the India Met. Dept, since the
first of June till today, All India Rainfall has been has been 9 %
deficient.  In the upcoming two weeks, the NCEP GFS model forecasts below
normal rainfall over much of central India and southeast Asian countries
around South China Sea region, and Indonesian islands. The summer monsoon
over India officially comes close by end of September.



*South American Monsoons:*



Long-term rainfall deficits are present over the Amazon Basin, the
Brazilian Plateau and the extreme southern Brazil.



During the last 7 days, below-average precipitation was observed over
portions of eastern Venezuela, northern and southern Colombia, northwestern
and the extreme southern Brazil. Above-average precipitation was observed
over portions of southern Brazil, northern Bolivia, southern Paraguay,
Uruguay, southern Argentina and southern Chile.



For Days 1-7 (24 – 30 September 2018), below-average precipitation is
predicted for portions of western Colombia, southern Venezuela, northern
and central Brazil, and northern Bolivia.  Above-average precipitation is
predicted for portions of the extreme southern Brazil, northern Uruguay,
southern Paraguay, central Argentina and southern Chile.





*For questions or comments, please contact:


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

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

Wei.Shi at noaa.gov  (for American monsoons and for general issues about the
CPC Global Monsoons products)
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   *
Wei Shi, Ph.D
Meteorologist
Climate Prediction Center/NCEP/NWS/NOAA
NCWCP  Room 3116
5830 University Research Court
College Park, MD 20740
USA
Phone: (301) 683-3440
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