Hurricane Andrew made landfall on August 24, 1992, near Homestead, Florida, becoming one of the most catastrophic hurricanes in U.S. history. It had an extremely low central pressure of 922 millibars and maximum sustained wind speeds estimated at 165 miles per hour. The storm rapidly intensified less than 36 hours before landfall, leaving most residents less than a day to secure their homes and heed evacuation orders.
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.
Saildrone is announcing a new mission to deploy five uncrewed surface vehicles (USVs) from the US Virgin Islands in August to gather key data throughout the 2021 Tropical Atlantic hurricane season. The USVs will be equipped with specially designed “hurricane wings” to enable them to operate in extreme conditions. Saildrones are the only USVs capable of collecting this data and are designed to withstand winds over 70 mph and waves over 10 feet, which occur during a hurricane weather system. The five saildrones will sail into the paths of hurricanes to provide valuable real-time observations for numerical hurricane prediction models and to collect new insights into how these large and destructive weather cells grow and intensify.
Originally Published January 25th, 2021 at NOAA.Gov
“We’re hopeful this new technology, once it can be successfully tested in a hurricane environment, will improve our understanding of the boundary layer and advance NOAA forecast models used in forecasts,” said Joseph Cione, lead meteorologist at NOAA’s Atlantic Oceanographic and Meteorological Laboratory Hurricane Research Division. “Ultimately, these new observations could help emergency managers make informed decisions on evacuations before tropical cyclones make landfall.”
NOAA Hurricane Hunters continue reconnaissance for Tropical Storm Eta, which threatens to bring tropical cyclone hazards to south Florida as it restrengthens over water.
Tasked by the Environmental Modeling Center (EMC) and the National Hurricane Center (NHC), NOAA’s P-3 and G-IV aircraft have conducted reconnaissance for Tropical Storm Eta. Missions are scheduled to proceed through the weekend.
A new study published in Geophysical Research Letters looks at the relationship between how fast a tropical cyclone intensifies and the amount of ice in the clouds that make up the storm. Hurricane scientists found that tropical cyclones with greater amounts of cloud ice are likely to intensify faster than those with less cloud ice.
New Study Looks at How Different Techniques to Model the Hurricane Boundary Layer Can Improve Forecasts
In a new study published in Atmosphere, hurricane scientists looked at how turbulent mixing in the boundary layer affects the intensity and structure of hurricanes in NOAA’s Hurricane Weather Research and Forecasting (HWRF) model. They found that turbulent mixing affects where thunderstorms in hurricanes occur, and how fast air flows towards the center of a storm.
NOAA concludes Environmental Modeling Center (EMC) tasked reconnaissance for Major Hurricane Delta on October 9. The P-3 aircraft took off from Lakeland, FL at 5:00 AM EDT to survey the system’s circulation.
NOAA and Air Force Reserve Hurricane Hunters continue around the clock monitoring of Hurricane Delta as it traverses the Gulf of Mexico. Overnight flights on October 7 through midday October 8 found that Delta’s circulation is intensifying and expanding in size.