Amazon River at Manaus Lowest in Over 100 Years as Drought Worsens

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Chart of the day: Long-term deep layer soil moisture deficits.

Discussion: Sign of a long-term dry climate, deep layer soil moisture deficits identify where drought can intensify and where water levels/soil moisture are critically low. Manaus on the Amazon River reported their lowest river level in over one century.

Week-2 Valid October 24-30, 2023: Brazil rains are heavier, more expansive.

Discussion: A vigorous trough moving across Chile while an equally strong upper trough resides over Brazil. The result? An energetic upper air pattern in-between each feature driving a wet regime across most of the southern half of Brazil, a wetter change.

Week-3 Valid October 31-November 6, 2023: Argentina trends wetter.

Discussion: Wet weather increases across Central Argentina and lingers on the central East coast of Brazil. The hot pattern in Brazil pushes northward.

Week-4 Valid November 7-13, 2023: Expansive heat/dryness in Brazil.

Discussion: Hot weather in Brazil is expansive with sharp dryness across northeastern sections. Wet weather is strongest in Southeast Brazil.