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

Wei Shi - NOAA Federal wei.shi at noaa.gov
Mon Apr 10 15:52:42 UTC 2017

The weekly PowerPoint presentations summarizing the recent variability of
the global monsoon systems have been updated on the CPC Global Monsoons


*African Monsoons:*

Rainfall was below-average over much of Gabon, Equatorial Guinea, southern
DRC, Angola, northern Zambia, and many places in East Africa. In contrast,
above-average rainfall was observed over portions of the Gulf of Guinea and
Southern Africa countries.

Week-1 outlooks call for an increased chance for above-average rainfall
over portions of Gabon, Congo-Brazzaville, northern Angola, southern
Botswana, and parts of South Africa. In contrast, there is an increased
chance for below-average rainfall over southern and eastern DRC, eastern
Zambia, Tanzania, Uganda, eastern Ethiopia and portions Kenya.

*Asian-Australian Monsoons:*

For the past 90 days, slight to heavy rainfall deficits remain over parts
of  central and northeastern Australia, as well as over Papua New Guinea.
However, rainfall situation is generally better in western Australia,
particularly in the northern region. Elsewhere, the rainfall situation is
at or near normal levels.  In the longer 180days term, severe deficits from
last year remain over southern/central India and over central and
northeastern Australia. For the past 30 days  rainfall deficits are found
over western Australia, Japan and Papa New Guinea. Elsewhere, the rainfall
amounts are at near or above normal levels, particularly it is above over
eastern coastal Australia, northeastern India, Bangladesh, and parts of
southeastern China.

In this past week,, positive rainfall anomalies are noted over Northern
India, Nepal and Bangladesh, as well as over eastern China. However, strong
negative departures are noted over southeastern China, Malaysia and Borneo
island.  In the next couple of weeks the NCEP GFS model is predicting
generally below normal rainfall over much of the region in the first week,
but normal to above normal rainfall in the second week except over northern

*South American Monsoons:*

Long-term rainfall deficits are present over the Amazon Basin and central

During the last 7 days (03-09 Apr 2017), below-average precipitation was
observed over much of the northern South America as well as central and the
extreme southern Brazil.  Above-average precipitation was observed over
eastern Argentina and portions of northern and southern Brazil.

For 10 - 16 Apr 2017, below-average precipitation is predicted over much of
northern and central Brazil, western Peru, northeastern Argentina and
southern Chile.  Above-average precipitation is predicted for much of the
northwestern South America.

*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)
Wei Shi, Ph.D
Climate Prediction Center/NCEP/NWS/NOAA
NCWCP  Room 3116
5830 University Research Court
College Park, MD 20740
Phone: (301) 683-3440
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