%0 Journal Article
%4 sid.inpe.br/mtc-m19/2012/01.12.11.12
%2 sid.inpe.br/mtc-m19/2012/01.12.11.12.01
%@issn 0003-0007
%T Extreme rainfall in November 2009 in southeastern
%D 2010
%8 June
%A Bidegain, M,
%A Skause, M.,
%A Marengo, José A.,
%@affiliation
%@affiliation
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%B Bulletin of the American Meteorological Society
%V 91
%N 6
%P 152-163
%X Portions of northern Uruguay, southern Brazil and northeastern Argentina experienced significant positive precipitation anomalies during November (fig. 7.15). Northern and western Uruguay, Rio Grande do Sul (state in Brazil), and Entre Rios (province in Argentina) felt the impacts of the flooding that affected all cities along the lower basin of Rio Uruguay River. Estimates indicated that more than 5000 people were evacuated from Uruguay alone. November 2009 was the wettest November in the last 30 years, since the Salto Grande dam was built (fig. 7.16). Overall, more than 350 mm of rain felt in the region between 25°S-35°S and 50°W-60°W. The monthly average is 150 mm, but in some places the record exceeded 600 mm. The National Institute of Meteorology of Brazil (INMET) and the National Institute for Space Research (INPE) reported that the November precipitation surpassed 400 mm at 19 meteorological stations of Rio Grande do Sul State, and average rainfall in all states was about 300 mm above normal. In Sao Luiz Gonzaga, the rainfall was 640 mm while the historical monthly average was 154 mm, a record for November since observations began in 1912.
%@language en