Hurricane Evacuation Zones — Miami, Florida

The City of Miami, the county seat of Miami-Dade County, occupies a low-lying coastal position along Biscayne Bay in southeastern Florida. According to the U.S. Census Bureau ACS 2023, the city's population is 446,663. Much of the urban area sits at elevations from sea level to only a few feet above, placing a large share of residential and commercial property within the storm surge planning zones administered by the Miami-Dade County Department of Emergency Management.

Hurricane evacuation authority in Miami rests primarily at the county level. The Miami-Dade County Emergency Operations Center issues evacuation orders, designates storm surge planning zones, operates emergency shelters, and activates public transit resources for residents who cannot self-evacuate. The Atlantic hurricane season runs June 1 through November 30 each year, and Miami's subtropical wet season — May through October — coincides directly with that window, as the Miami-Dade County Department of Emergency Management has documented in its public preparedness materials.

Storm surge, defined by Miami-Dade County as ocean water pushed onshore by the force of tropical storms or hurricanes, is identified by the county as the primary reason for evacuation orders. The five storm surge planning zones — designated A through E — are distinct from FEMA flood zone designations and are based solely on surge exposure modeling.

Miami-Dade County's Department of Emergency Management administers five storm surge planning zones — A, B, C, D, and E — that cover the City of Miami and surrounding municipalities throughout the county. The zones are defined strictly by each area's exposure to storm surge inundation and carry no relationship to FEMA flood zone designations, which measure different hazard types.

As documented by Miami Dade College's hurricane preparedness program, Zone A carries the greatest risk for storm surge in Category 1 and higher storms; Zone B is at greatest risk for Category 2 and higher storms; and Zone C faces greatest risk in Category 3 and higher storms. Zones D and E represent progressively lower surge exposure. These zone boundaries were revised in 2013 based on updated storm surge modeling data, a change documented by Miami Dade College's emergency preparedness program and reflected in current county materials.

The City of North Miami's storm surge zone guidance describes the planning zones as identifying areas where storm surge of 1.5 feet or higher is modeled as a potential impact, and notes that the determination of whether to evacuate or shelter in place depends on a storm's track and the projected surge for a given event — meaning zone designation alone does not automatically trigger an order; the specific storm's characteristics drive each decision.

Residents can determine their zone designation using the Storm Surge Planning Zone Finder tool maintained on Miami-Dade County's emergency evacuations service page, which also hosts the Evacuation Orders map for monitoring active orders during a storm event.

Evacuation decisions for the City of Miami are made at the county level. The Miami-Dade County Emergency Operations Center issues orders by zone or by partial zone, allowing officials to direct only the most at-risk areas to evacuate when a storm's projected surge does not threaten all designated zones. This zone-based ordering structure is described on the Miami-Dade County emergency evacuations page.

Miami-Dade Transit assets are activated during declared evacuations to operate emergency bus pickup sites for residents without personal transportation. The county's Storm Aides For Everyone application — known as SAFE — provides real-time shelter availability and routing information once an evacuation order is issued, as documented on the county's emergency evacuations service page. Residents may also contact the County Answer Center by dialing 311 or visit miamidade.gov for official information during an event.

Official emergency preparedness communications from Miami-Dade County are published in English, Spanish, and Haitian Creole, reflecting the city's multilingual population. The EEAP application is available in all three languages, as documented on the Miami-Dade County Office of Emergency Management's fire and emergency documents page.

The City of Miami operates under a commission-manager form of government, but countywide emergency management authority — including evacuation orders, zone designations, shelter operations, and the EEAP program — rests with Miami-Dade County's Board of County Commissioners, County Mayor, and the Department of Emergency Management rather than with city government alone.

Miami-Dade County administers the Emergency and Evacuation Assistance Program (EEAP), which provides free specialized transportation and sheltering assistance to eligible residents who need help evacuating or who require post-disaster wellness checks. The program is designed for individuals living at home who cannot self-evacuate due to disability, age, or other access needs, as described in the county's official EEAP documentation. The EEAP application is available in English, Spanish, and Haitian Creole through the Miami-Dade County Office of Emergency Management.

The EEAP program carries particular relevance in Miami given the city's demographics. According to the ACS 2023, 69.3% of Miami's occupied housing units are renter-occupied, the poverty rate stands at 19.2%, and the median household income is $59,390 — conditions that Miami-Dade County emergency planning documents explicitly cite as factors driving the need for publicly funded evacuation assistance.

Hurricane evacuation shelters for Miami-area residents are operated on the mainland by the American Red Cross in coordination with the Miami-Dade County Emergency Operations Center. As the City of Miami Beach Office of Emergency Management documents, no hurricane shelters exist within Miami Beach or other coastal barrier-island communities; residents of those areas are directed to evacuate to mainland facilities. The official shelter list is issued through the Miami-Dade County Emergency Operations Center when an order is activated.

Ahead of the 2024 hurricane season, the Miami-Dade County Department of Emergency Management issued a public preparedness release directing residents to register for the EEAP before the season's onset, with particular emphasis on residents with functional and access needs completing registration early. The release also directed the public to download the Ready Miami-Dade App for real-time emergency alerts and to monitor local media and official social media channels during storm events.

The county continued to maintain its public-facing Storm Surge Planning Zone Finder tool and Evacuation Orders map on miamidade.gov through the 2024 season, allowing residents to determine their zone designation and track active orders in real time. As of the 2024 season, evacuation orders continued to be structured by zone or partial zone, and emergency bus pickup sites remained available via Miami-Dade Transit to supplement self-evacuation for residents without access to personal vehicles, as documented on the county's emergency evacuations service page.

Miami's vulnerability to storm surge is shaped directly by its geography. The city sits on a narrow coastal plain between the Atlantic Ocean to the east and the Everglades to the west, with elevations generally at or just above sea level across most of the urban area. Biscayne Bay separates the mainland from the barrier islands — including the City of Miami Beach, a separate municipality — and the Miami River bisects downtown before discharging into the bay. This flat, low-lying configuration means that surge from a landfalling storm can propagate broadly and rapidly across residential neighborhoods.

The city's population of 446,663 (ACS 2023) is concentrated in a dense urban core where 69.3% of residents rent rather than own their housing, according to the ACS 2023. With a median home value of $475,200 and a median gross rent of $1,657, cost burdens are widespread, and the 19.2% poverty rate indicates that a substantial share of the population may have limited capacity to self-fund hotel stays or long-distance travel during an extended evacuation. These conditions undergird Miami-Dade County's investment in the EEAP and transit-based evacuation resources.

Within the broader metropolitan region, Miami-Dade County's storm surge planning zone framework applies uniformly across incorporated municipalities — including the City of Miami, the City of Miami Beach, North Miami, Hialeah, and unincorporated areas — meaning that zone designations and evacuation orders operate county-wide rather than city-by-city. PortMiami, operated by Miami-Dade County and located in the Port of Miami on Dodge Island adjacent to downtown Miami, also factors directly into pre-hurricane logistics and post-storm recovery given its role as one of the largest cruise ports in the United States.