[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:*



Rainfall was below-average over many places in the Equatorial Africa.



Above-average rainfall was observed over portions of southern Africa
including Madagascar.



Week-1 outlooks call for an increased chance for below-average rainfall
over Equatorial-Guinea, Gabon, Congo-Brazzaville, northwestern Angola,
western DRC, southeastern Angola, eastern Namibia, Botswana, southwestern
Zambia, western Zimbabwe, and portions of northern South Africa. In
contrast, there is an increased chance for above-average rainfall over
southern DRC, eastern Zambia, southern Tanzania, Malawi, northern
Mozambique, and much of Madagascar.





*Asian-Australian Monsoons:*



For the past 90 days, below normal rainfall deficits remain in general over
east central India, South Koreas, portions of southeast central China,
Papua New Guinea, Cambodia, Malaysia, and parts of central and south
eastern Australia. Elsewhere the monsoon rainfall is at normal to above
normal levels. For the past 30 days,  below normal rainfall deficits are
visibly noted over southeastern peninsular India, parts of interior eastern
China,, Papua New Guinea, and parts of eastern Australia.



In this past week, the observed rainfall amounts have  been below normal
rainfall over deep southern peninsular India, Malaysia, and part of
Indonesia and the Philippines. The 2017 winter northeast monsoon over
southern India (Oct-Dec) rainfall, according to the India Meteorological
Dept. (IMD), is at about  -10% level below long term mean. In the upcoming
two weeks, the NCEP GFS model predicts above normal rainfall along the east
coasts of southern India and southeastern Australia in the first week, and
sporadic rainfall across the region during the second week.





*South American Monsoons:*



Long-term rainfall deficits are present over the Amazon Basin and Brazilian
Plateau.



During the last 7 days, below-average precipitation was observed over much
of northern and central Brazil, eastern Bolivia and northern Argentina.
Above-average precipitation was observed over portions of southern Brazil
and central Colombia.



For Days 1-7 (27 Nov – 03 Dec 2017), below-average precipitation is
predicted over much of northern, central and the extreme southern Brazil as
well as northeastern Argentina and southern Chile.  Above-average
precipitation is predicted for portions of central Colombia and central
Peru, northwestern Bolivia, northern Paraguay, central Argentina and
southern Brazil.





*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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