The Hurricane Research Division produced surface wind analysis of tropical cyclones '+'from 1993 - 2013 as part of the H*Wind Project. In 2014 this technology was transferred '+'to Hwind Scientific, a US private sector firm as allowed under the Technology Transfer Act '+'of 1986 (15 US Code 3710). The images and data sets formerly available on this site, are now publicly available at:
Please note these GIS datasets are provided as a convenience to users. Support for these data may not always be available or timely in nature. For issues directly related to the datasets below, please contact us.
noaa hurricane data download
This dataset is available in shapefile and kml/kmz formats.
The wind speed probabilities data also can be found through the National Digital Forecast Database (NDFD) at the following locations:
A tropical cyclone is a rotating, organized system of clouds and thunderstorms that originates over tropical or subtropical waters and has a closed low-level circulation. Tropical cyclones rotate counterclockwise in the Northern Hemisphere. They are classified as follows:
Tropical Depression: A tropical cyclone with maximum sustained winds of 38 mph (33 knots) or less.Tropical Storm: A tropical cyclone with maximum sustained winds of 39 to 73 mph (34 to 63 knots).Hurricane: A tropical cyclone with maximum sustained winds of 74 mph (64 knots) or higher. In the western North Pacific, hurricanes are called typhoons; similar storms in the Indian Ocean and South Pacific Ocean arecalled cyclones.Major Hurricane: A tropical cyclone with maximum sustained winds of 111 mph (96 knots) or higher, corresponding to a Category 3, 4 or 5 on the Saffir-Simpson Hurricane Wind Scale.
This data is produced by the National Hurricane Center Risk Analysis Program (HURISK) by Charles Neumann. The basic idea is that a population of tropical cyclones falling within the 65 nm (75 miles) circle is obtained from the best-track file. For that set of storms, the maximum wind within the circle is found. Then, a count is conducted to find how many systems had winds of 30-34 kt, 35-39 kt etc. Once the count is known, a function is used to "fit" the distribution. Since there are only a few intense tropical cyclones typically in the 100-year record for a particular site, the mathematical function helps to smooth this out and "fill in the holes" so to speak. The smooth function is then used to estimate the number of systems that would occur over a longer time period. We would expect that if we actually had a much longer historical record (several centuries) that the number of extreme events (i.e., category 5 hurricanes) observed would roughly match our estimates based on the shorter period of record.
The last several hurricane seasons have been active with records being set for the number of tropical storms and hurricanes in the Atlantic basin. These record-breaking seasons underscore the importance of accurate hurricane forecasting. Imperative to increased forecasting skill for hurricanes is the development of the Hurricane Forecast Analysis System or HAFS. To accelerate improvements in hurricane forecasting, this project has the following goals:
As long as the base of this weather system remains over warm water and its top is not sheared apart by high-altitude winds, it will strengthen and grow. More and more heat and water will be pumped into the air. The pressure at its core will drop further and further, sucking in wind at ever increasing speeds. Over several hours to days, the storm will intensify, finally reaching hurricane status when the winds that swirl around it reach sustained speeds of 74 miles per hour or more.
Eventually, hurricanes turn away from the tropics and into mid-latitudes. Once they move over cold water or over land and lose touch with the hot water that powers them, these storms weaken and break apart.
After severe, extreme weather events (e.g., hurricanes and flooding events), one of the most challenging activities is to identify the level of destruction left behind and assess how much infrastructure has been destroyed or relocated. Timely access to baseline (prior to event) and post event remote sensing imagery over those affected areas is critical to take action and make sure that lives and property are protected.
In an effort to increase access and visibility to these images, NOAA ERI data is now available through the NOAA Big Data Program (BDP). NOAA ERI data is now available in the AWS Cloud and the images are discoverable through the Registry of Open Data on AWS as soon as they are posted. The NOAA BDP team retains complete control and ownership of the ERI data distributed through AWS. Through ASDI and the AWS Open Data Sponsorship Program, AWS covers the costs of storing and egressing the data, and supports the NOAA BDP team with technical support, as needed. This helps maintain and preserve the integrity of the data, and that only NOAA controls which data is distributed through the AWS Cloud. ERI data from severe weather events starting in 2005 are available on AWS. In addition to the native JPEG format, the data catalog on AWS provides the data also in Cloud Optimized GeoTiff (COG) format to enable easier analysis of the data in the cloud.
Those making the point cite a National Oceanic and Atmospheric Administration web pagethat compiles and analyzes research on climate change and hurricanes, including a 2011 study that found no strong evidence that more hurricanes had made landfall in the U.S. in the last century.
The Hurricane Ensemble Data Assimilation System (HEDAS) was developed at the Hurricane Research Division (HRD) of NOAA, in conjunction with an experimental version of the Hurricane Weather and Research Forecast model (HWRFx), in an effort to improve the initial representation of the hurricane vortex by utilizing high resolution in-situ data collected during NOAA's Hurricane Field Program. HEDAS implements the ensemble square root filter of Whitaker and Hamill (2002) using a 30- member ensemble obtained from NOAA/ESRL's ensemble Kalman filter (EnKF) system and the assimilation is performed on a 3-km nest centered on the hurricane vortex. As part of NOAA's Hurricane Forecast Improvement Program (HFIP), HEDAS will be run in a semi-operational mode for the first time during the 2010 Atlantic hurricane season and will assimilate airborne Doppler radar winds, dropwindsonde and flight level wind, temperature, pressure and relative humidity, and Stepped Frequency Microwave Radiometer surface wind observations as they become available. HEDAS has been implemented in an experimental mode for the cases of Hurricane Bill, 2009 and Paloma, 2008 to confirm functionality and determine the optimal configuration of the system. This test case demonstrates the importance of assimilating thermodynamic data in addition to wind observations and the benefit of increasing the quantity and distribution of observations. Applying HEDAS to a larger sample of storm forecasts would provide further insight into the behavior of the model when inner core aircraft observations are assimilated. The main focus of this talk will be to present a summary of HEDAS performance in the HWRFx model for the inaugural season. The HEDAS analyses and the resulting HWRFx forecasts will be compared with HWRFx analyses and forecasts produced concurrently using the HRD modeling group's vortex initialization which does not employ data assimilation. The initial vortex and subsequent forecasts will be evaluated based on the thermodynamic structure, wind field, track and intensity. Related HEDAS research to be presented by HRD's data assimilation group include evaluations of the geostrophic wind balance and covariance structures for the Hurricane Bill (2009) experiments, and Observation System Simulation experiments (OSSEs) for the case of Hurricane Paloma (2008) using both model-generated and real observations. - Indicates paper has been withdrawn from meeting - Indicates an Award WinnerSee more of: Assimilation of observations into models: Atmosphere III
See more of: 15th Symposium on Integrated Observing and Assimilation Systems for the Atmosphere, Oceans and Land Surface (IOAS-AOLS)>Follow Us
The recent launches of the GOES-16 and Himawari-8 satellites bring with them immense data sets of satellite imagery, and new visualization tools are needed to facilitate their exploration. To that end, the Satellite Loop Interactive Data Explorer in Real-time (SLIDER) web application was recently developed by the Cooperative Institute for Research in the Atmosphere (CIRA) in partnership with the Regional and Mesoscale Meteorology Branch (RAMMB; a branch of the National Oceanic and Atmospheric Administration (NOAA) National Environmental Satellite, Data, and Information Service (NESDIS)), located at Colorado State University (CSU). SLIDER provides full-resolution, standard and value-added imagery products from GOES-16 and Himawari-8 to both the scientific community and the general public. All development work was done by Kevin Micke with advice from and consultation with many colleagues within RAMMB and CIRA.
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