During a disastrous event, first responders must quickly understand the magnitude and the nature of the event to effectively supply aid to impacted citizens and communities. Timely and accurate intelligence about the scope of the event is key for effective and successful response decisions such as deployment of resources, timeliness of rescue operations, containment of hazards and assessment of damage. First deployed by FEMA in 2018, the Priority Operations Support Tool (POST) was developed to address the need for a systematic method to prioritize and manage response and recovery operations during disasters. POST`s layer displays various levels of projected risk and exposure. The predictive model relies on best-available hazard data (e.g., wind speed, surge probability, riverine flooding), the distribution and characteristics of residential structures, population data, and social vulnerability/demographics (extracted from the US Census Bureau of Statistics American Community Survey (ACS)). Risk, exposure, and priority ranks are calculated based on the US National Grid System (USNG) as the unit of analysis, in a spatial resolution of 1km and 5km . First, a Hazard Probability Score (HPS) is calculated for each unit of analysis based on modeled or observed hazard data and weighted by the number of residential parcels within the unit. A high HPS signifies a cell with a relatively high number of residential parcels that are most likely to be severely affected or damaged according to the best-available hazard data. To determine projected impacts on vulnerable population, POST relies on socio-demographic characteristics collected by the ACS (e.g., number of elderly people, unemployment rate, number of people on public assistance or food stamps, number of mobile housing units). These data have been disaggregated from the administrative block group division to the USNG division. POST then calculates a weighted Population Vulnerability Scores (PVS) for each affected USNG cell, which in turn, are translated into disasters operation priority, or risk ranks. High risk ranks are assigned to cells that are (1) most likely to be severely hit and (2) where the most vulnerable population is most likely to be affected. Note: POST layer is updated during national disaster events on an ongoing basis as new hazard data becomes available.  Terms of Use User assumes all risk related to the use of this data.  FEMA provides this data "as is" and disclaims any and all warranties, whether express or implied, including (without limitation) any implied warranties of merchantability or fitness for a particular purpose, and there are no express or implied guarantees of accuracy of the data.  In no event will FEMA or any other Federal Agency be liable to you or to any third party for any direct, indirect, incidental, consequential, special, or exemplary damages or lost profit resulting from any use or misuse of this data.