Flooding, Severe Storms Threaten Buenos Aires, Montevideo

November 2, 2013; 4:56 AM ET
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A powerful low pressure system is bringing life-threatening flooding and severe thunderstorms to portions of central and northeastern Argentina as well as Uruguay, ending a quiet stretch of weather.

As of late Friday, heavy rain and thunderstorms were already causing flash flooding across central Argentina in the city of Cordoba, which is the second largest city in Argentina behind Buenos Aires.

Cordoba Airport has recorded 132 mm (5.20 inches) of rain in less than 24 hours which is leading to some of the flooding problems. The heaviest rain has shifted east of Cordoba with some drying expected Friday night.

Farther east, rain began in Buenos Aires and Montevideo early Friday morning and the worst of the storm is expected to last into Friday night.

Flooding rain is the main danger this storm poses to the region, but severe thunderstorms erupting on the rain's leading edge are a concern during the afternoons and evenings.

Widespread rain amounts of 50-100 mm (2-4 inches) with local amounts up 150 mm (6 inches) will cause flooding while severe thunderstorms will produce wind gusts past 80 kph (50 mph) that could lead to power outages and some structural damage.

AccuWeather.com Senior Meteorologist Rob Miller expects the heaviest rain totals to be measured in western and central Uruguay and neighboring parts of Argentina.

Metsul, a Brazilian weather blog, reported one death as well as power outages and downed trees.

24 Hour Rainfall in Argentina Ending Friday Morning

Rainfall; mm (inches)
Villa Dolores 136 (5.35)
Marcos Juarez 134 (5.28)
Cordoba 132 (5.20)
Rosario 120 (4.72)
Pilar 85 (3.35)
Villa Reynolds 70 (2.76)
Junin 54 (2.13)

Despite the numerous issues caused by the heavy rain, Cordoba finally received relief from short-term drought.

Detailed Buenos Aires Forecast
Detailed Montevideo Forecast
Current Satellite

From Sunday into Monday, the threat of heavy rainfall will shift into southeastern Brazil; however, rainfall is not expected to be as extreme as what occurs in northeast Argentina and Uruguay.

High pressure building in behind this storm system will supply dry and tranquil weather during the first half of next week.

"These areas have only recorded around 20% of their normal rainfall since the beginning of September," according to Expert Senior Meteorologist Jason Nicholls.

Nicholls added that this rain is coming at a very beneficial time for corn and soybean establishment across the region.

AccuWeather.com Meteorologists Eric Leister, Kristina Pydynowski, and Dan DePodwin contributed to this story.


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