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Light Drizzle Falls on Piura After Amazon Moisture Transfer

Senamhi says the moisture surge could lead to more isolated humid episodes if the South Pacific Anticyclone remains weak.

Overview

  • The light drizzle that surprised residents on Friday morning affected parts of Piura and Chulucanas with rainfall totals under 2 millimeters, Senamhi reported.
  • Senamhi attributed the garúa to a trasvase de humedad, a direct transfer of moisture from the Amazon basin that encourages low clouds and fine precipitation along the northern coast.
  • Authorities emphasized the event was localized and low in intensity and does not mean the whole region will see heavy rains.
  • Senamhi issued Regional Meteorological Notice No. 133 warning of stronger winds in the northern highlands from July 24 to 26 with gusts that may exceed 45 km/h.
  • Forecast guidance from the GFS shows the South Pacific Anticyclone weakening through July 31 and persistent warm sea-surface temperatures off Piura and Tumbes are raising humidity risks, so meteorologists will continue monitoring for further humid or drizzly episodes and will update forecasts as conditions evolve.