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Caution: HVX is a experimental prototype to assist Emergency Managers in planning, decision-making and responding to tropical storm threats and evacuations. HVX is still in development by MIT Lincoln Laboratory under sponsorship from the Department of Homeland Security Science and Technology (DHS S&T) Directorate and the Federal Emergency Management Agency (FEMA) National Hurricane Program. HVX is an experimental prototype undergoing test and evaluation. HVX is NOT an operational system and should not be used for operational decisions during active events. Access is restricted to authorized users with approved credentials, and these credentials are only valid for the individual for which they were assigned. Questions, comments and feedback should be directed to

Note: Although HVX may be used with several browsers, recent versions of Chrome and Firefox are recommended for best results.