On May 22, the National Hurricane Center started issuing advisories for subtropical storm Ana that had formed near Bermuda – the first storm of the 2021 Atlantic hurricane season which officially starts on June 1.
The Coastal Emergency Risks Assessment (CERA) Group at Louisiana State University provides storm surge and flood inundation guidance through its interactive visualization portal all season. Please check our CERA storm surge tool at cera.coastalrisk.live for updates and get connected with our partners through Seahorse Coastal Consulting at LinkedIn.
CERA visualizes time series for water levels, wind, and significant wave height for any location on the map. To use this feature, click on the time series button on the left of the map, then click on the desired location on the map.
CERA’s 2021 release now allows downloading the selected time series as a .json file. The download link is in the top right of the time series chart.
If finding a time series for a specific coordinate point is desired, click on the time series button, then click on the location search button on the left of the map. If you already have a chart open, the coordinate pair is pre-filled in the search box. If you would like to find another place, enter the coordinate as [latitude, longitude]. CERA will open the time series chart automatically.
The CERA team is happy to announce a major upgrade using the Global Extratropical Surge & Tide Operational Forecast System (ESTOFS-Global) developed by NOAA’s Office of Coast Survey. High-resolution water level forecast guidance is now provided for the entire globe.
CERA provides the maximum water level height for the 06Z UTC cycle once a day. Using the CERA ‘time series’ feature displays maximum water levels at any point of interest on the map.
Unregistered users will now see the ESTOFS-Global map by default. Registered users can switch between ESTOFS-Global and customized maps from ADCIRC Surge Guidance System (ASGS) at any time using the ‘Select a model’ box at the top of the site.
You can also use the “Map Settings” option dialog at the upper right of the website to change your model preference upon opening CERA.
With this update, CERA transcends its national capability to an international level in extratropical flood forecasting using NOAA’s data.
The CERA Group is excited to announce a first release for selected hindcasts that will allow you to download the maximum inundation with a 50 meter resolution from the CERA website.
The following hindcasts are now available for download as GeoTIFF:
2020: Zeta, Delta, Sally, Laura, Isaias, Hanna 2019: Dorian, Barry 2018: Michael, Gordon, Florence 2017: Irma, Harvey 2016: Matthew
To download these GeoTIFFs, please select the maximum inundation layer from the legend for the desired storm, then select the download button in the top right (“Download GeoTIFF”). CERA has the capability to create GeoTIFFs on demand. We will provide this functionality for storm runs in the 2021 hurricane season.