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Tropical Depression 1-E forms off Mexico, set to become Tropical Storm Alvin

Projected to be named Alvin, the system carries a near-certain chance of development with heavy rainfall expected along Mexico’s west-central coast.

A map from the National Hurricane Center shows the anticipated path should a tropical storm form.
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Overview

  • The National Hurricane Center assesses a nearly 100% probability that Tropical Depression 1-E will strengthen into Tropical Storm Alvin within 48 hours.
  • Its emergence marks an early onset of the Eastern Pacific hurricane season, which began May 15, ahead of the basin’s average first storm date of June 10.
  • Forecast models indicate Alvin will deliver locally heavy rainfall and gusty winds to Mexico’s west-central coast from late week into the weekend.
  • Remnant moisture from Alvin is likely to track northward, bringing increased cloud cover and scattered showers to Southern California, Arizona and adjacent U.S. regions.
  • NOAA outlooks predict 14 to 18 tropical storms and 7 to 10 hurricanes in the Eastern Pacific this year, while the Atlantic season is expected to produce 13 to 19 named storms.