Andres becomes a remnant low, Hurricane Zeta upgraded to a Category 3 major hurricane at Louisiana landfall

Andres becomes a remnant low, Hurricane Zeta upgraded to a Category 3 major hurricane at Louisiana landfall

As expected, Tropical Storm Andres became a remnant low on Tuesday morning, and is not expected to regenerate. In addition, Hurricane Zeta from October 2020 has been upgraded to a Category 3 major hurricane at its landfall in Louisiana, giving the 2020 Atlantic hurricane season its record-tying 7th major hurricane.

Andres becomes a remnant low

The remnants of Andres captured by the GOES-17 satellite at 16:00 UTC Tuesday. (Source: NASA/Colorado State University)

As of 9:00 a.m. MDT (11:00 a.m. EDT) Tuesday, Post-Tropical Cyclone Andres was centered near 15.8°N 111.4°W, and were moving westward at about 6 mph. Maximum sustained winds were 25 knots (30 mph), with an estimated minimum pressure of 1007 mb. With a hostile environment, regeneration is not expected, and Andres’ remnants pose no threat to any land areas. After Andres’ degeneration into a remnant low, tropical cyclogenesis is not expected over the Atlantic or eastern Pacific basins in the near future. On Sunday, Andres broke the record for earliest named storm in the eastern Pacific proper. Routine issuance of the National Hurricane Center Tropical Weather Outlook will resume on May 15 for both the North Atlantic and Eastern Pacific basins.

Hurricane Zeta upgraded to a Category 3 major hurricane in post-season analysis

Visible satellite image of Hurricane Zeta on October 28, 2020, taken by the Terra satellite. (Source: NASA/EOSDIS Worldview)

Hurricane Zeta, which operationally was assessed to have made landfall over southeastern Louisiana on October 28, 2020 as a high-end Category 2 hurricane with maximum 1-minute sustained winds of 110 mph, had its landfall intensity increased to 115 mph, making it a Category 3 major hurricane on the Saffir-Simpson Hurricane Wind Scale. With Zeta’s upgrade, the 2020 Atlantic hurricane season now has a total of seven major hurricanes, five of which formed after September. The 2020 Atlantic hurricane season is now tied with 2005 for the most major hurricanes, which also had seven major hurricanes.

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