[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:*



Weekly rainfall totals exceeded 100mm over portions of Guinea and Sierra
Leone. Heavy rainfall was also observed over local areas in Nigeria,
southwestern Cameroon, Chad and CAR.



Below-average rainfall was observed over portions of the far western West
Africa. Below-average rainfall was also observed over many parts of Eritrea
and Ethiopia.



Week-1 outlooks call for an increased chance for below-average rainfall
over much of Senegal, Gambia, Guinea-Bissau, southern Mauritania and
southwestern Mali. In contrast, there is an increased chance for
above-average rainfall over much of Guinea, Sierra Leone, western Liberia,
southwestern Mali, southeastern Nigeria, Cameroon, southern Chad, northern
CAR, central and southern Sudan, northern South Sudan and northeastern DRC.





*Asian-Australian Monsoons:*



For the past 90 days, below normal rainfall deficits  dominated
northeastern China, and all over India except the northeast and the
Gangetic Plains and along the northern slopes of the Western Ghats,
southeastern China, and near Vietnam, Laos and parts of Cambodia. For the
past 30 days the rainfall amounts received were below normal over southern
peninsular India,  but above normal along the Gangetic plains and the
northeast and over Burma as well. Many parts of Indonesia, Thailand,
northeastern China and Korea experienced below normal rainfall. But south
central and southeastern China received more rainfall.



In this past week,  while central India received more rainfall,
northeastern India got less. Also both Koreas and Japan received below
normal rainfall.  Elsewhere the pattern was mixed. As of today since the
first of June, the India Met. Dept. reported that the overall All India
Monsson Rainfall amounts were only 7% below the long term mean.  For the
next two weeks, the NCEP GFS model forecasts continued below normal
rainfall for central India, southeastern China and across much of southeast
Asia.





*North American Monsoons:*



Near-average rainfall has been observed over southwestern US during the
past 7 days, while northwestern Mexico continued to experience
drier-than-average conditions.



Rainfall accumulations over the past 30 days were below-average for much of
Mexico and southwestern US.



NCEP/GFS Forecasts call for near-average precipitation for much of the
southwestern US during the next two weeks.





*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
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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