tropical cyclone - NOAA's Atlantic Oceanographic and Meteorological Laboratory

State of the Climate in 2022 Report Released

AOML Communications — Wed, 06 Sep 2023 14:27:44 +0000

Today, September 6, the 2022 State of the Climate report was released by the American Meteorological Society, showing greenhouse gas concentrations, global sea levels, and ocean heat content reached record highs in 2022.

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Scientists at AOML Discover Atlantic Niño Fuels the Most Intense and Destructive Tropical Cyclones

AOML Communications — Thu, 29 Jun 2023 12:55:27 +0000

Scientists at NOAA’s Atlantic Oceanographic and Meteorological Laboratory (AOML) found that Atlantic Niño, the Atlantic counterpart of the Pacific El Niño, increases the formation of tropical cyclones off the coast of West Africa, also known as Cape (Cabo) Verde hurricanes. The study published in Nature Communications is the first to investigate the links between Atlantic Niño/Niña and seasonal Atlantic tropical cyclone activity and the associated physical mechanisms.

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State of the Climate in 2021 Report Released

AOML Communications — Wed, 31 Aug 2022 17:32:11 +0000

The State of the Climate in 2021 report was released today by the American Meteorological Society, showing greenhouse gas concentrations, global sea levels, and ocean heat content reached record highs in 2021 despite a La Niña event taking place in the Pacific Ocean.

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Scientists Observe Rainfall Under Tropical Cyclones Reduces Sea Surface Cooling

AOML Communications — Thu, 19 May 2022 17:34:14 +0000

Tropical cyclones intensify by extracting heat energy from the ocean surface, making the sea surface temperature under storms crucial for storm development. A recent study by researchers at the Pacific Northwest National Laboratory and NOAA’s Atlantic Oceanographic and Meteorological Laboratory found that large amounts of rain under tropical cyclones can reduce the sea surface cooling induced by them.

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Coyote Small Uncrewed Aircraft System Data Improved Hurricane Maria Forecasts

AOML Communications — Wed, 04 May 2022 14:57:04 +0000

Observations obtained by the Coyote small Uncrewed Aircraft System led to a significant improvement in the analyses of Hurricane Maria’s (2017) position, intensity, and structure, according to new research published in the journal Monthly Weather Review. The study by scientists with the University of Miami's Cooperative Institute for Marine and Atmospheric Studies and Atlantic Oceanographic and Meteorological Laboratory (AOML) highlights how the Coyote’s novel near-surface measurements helped to more accurately depict Hurricane Maria’s inner core, demonstrating their ability to improve forecasts.

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Research Explores Impact of Wind Shear Direction on Tropical Cyclone Intensity

AOML Communications — Sat, 01 Jan 2022 13:51:00 +0000

The amount of wind shear, i.e., the change of the wind with height, is one of the most commonly used predictors of tropical cyclone intensity change, with large amounts of wind shear generally being unfavorable for intensification. Regardless of the direction of the wind shear, tropical cyclones in the North Atlantic basin usually have warm, moist air from the environment near the sea surface on their east side (solid red arrows in the images) and cool, dry air from the environment on their west side (solid blue arrows in images).

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AOML Scientists Play Critical Role in Success of NOAA’s Hurricane Field Program

AOML Communications — Tue, 30 Nov 2021 13:57:00 +0000

The active 2021 Atlantic hurricane season ended on November 30, producing 21 named tropical storms (39‑73 mph winds), seven hurricanes (74 mph winds and above), and four major hurricanes (111 mph winds and above). The year will be remembered as the third-most active on record, as well as the third costliest, causing more than $80 billion in damage.

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Scientists Sample Multiple Storms as Tropics Enter Peak for Hurricane Formation

AOML Communications — Thu, 18 Nov 2021 20:55:55 +0000

Hurricane scientists at AOML sampled multiple storms this summer as the Atlantic entered its peak period for hurricane formation. From Elsa to Sam, the observations they gathered supported NOAA’s mission of preparing the public for severe weather by providing critical data for accurate, up-to-date forecasts.

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