***UNCLASSIFIED*** AUTHORIZATION TO USE AND DISTRIBUTE I hereby agree to the following terms governing the use and redistribution of the content and imagery from the U.S. Naval Research Laboratory's tropical cyclone webpage (NRL TC Web) originally developed, produced, and distributed by the NRL Marine Meteorology Division. To the extent that a federal employee is an author of a portion of this software or a derivative work thereof, no copyright is claimed by the United States Government, as represented by the Secretary of the Navy ("GOVERNMENT") under Title 17, U.S. Code. All Other Rights Reserved. Redistribution and use in source and final forms, with or without modification, are permitted provided that the following conditions are met (1) product and code distributions retain the above copyright notice, this list of conditions, and the following disclaimer in its entirety, (2) distributions including full directory structures include this paragraph in its entirety in the documentation or other materials provided with the distribution, and (3) all published and derivative work using this content display acknowledgment and credit to the "U.S. Naval Research Laboratory". Neither the name of NRL or its contributors, nor any entity of the United States Government may be used to endorse or promote products derived from this content, nor does the inclusion of the NRL written and developed content directly or indirectly suggest NRL's or the United States Government's endorsement of this product. THIS CONTENT IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. NRL TC Web content is approved for public release by the Superintendent, NRL Marine Meteorology Division. Content is free to use and redistribute for forecasters, researchers, and public given the terms above. ***UNCLASSIFIED***