The Hurricane Pam Exercise was a mock hurricane-planning exercise in New Orleans, sponsored by FEMA. It asked officials to imagine hospitals cut off by flooding and patients who would need to be extracted in stages. Its importance lies in the gap between recognizing those problems on paper and arranging the people, vehicles, supplies, and authority needed to solve them: when Hurricane Katrina struck, several of the exercise’s central questions were still unanswered.

Scenario and Assumptions

The exercise took place earlier in the week Katrina approached the city. Its scenario anticipated more than 2,000 hospital patients in New Orleans during a catastrophic hurricane, a figure later reflected in the real emergency. Yet officials had not worked out how to move so many patients to safety through floodwaters, and federal health officials had not participated in the latest planning sessions.

At a workshop, hospital emergency manager Cynthia Matherne considered what should happen if each hospital in the affected area became an island. The exercise posed practical questions about which patients should be extracted first and whether priority should go to those most able to make the trip. As Katrina’s track moved west along the Gulf Coast, Matherne noted the storm’s progress on a workshop handout. She did not know that the hypothetical isolation under discussion would soon describe the situation confronting the hospitals.

The assumptions also concerned how long hospitals would have to manage without outside help. The exercise treated flight resources as limited and anticipated that they would be needed for at least the first five days to rescue people stranded on rooftops and in trees. Hospitals, meanwhile, were expected to be prepared to operate for seven days on their own. That expectation had recently risen from three days, but it did not itself establish a system for moving patients once a hospital could no longer safely care for them.

Plans Without an Evacuation System

Matherne knew that no plan specified how New Orleans hospitals should be evacuated after a hurricane. In the unfolding emergency, she could not identify which agency, if any, was in charge. The exercise had raised the question of patient priority, but the actual assignment of responsibility and resources remained unclear.

One proposed air-transport arrangement involved temporary landing and transfer points, or SARBOOs, where helicopters could make quick trips in and out of the flooded area. The idea was to move patients to these staging locations before transferring them onward to more definitive care. But the system needed to supply the sites and carry patients away from them had not been planned. The exercise’s staging concept therefore depended on a second transportation network that did not exist in usable form.

The shortfall was especially stark at the cloverleaf interchange west of the city at Causeway Boulevard. Helicopters could bring evacuees there and return quickly to the flood zone, but officials had managed to implement only half of the proposed approach: the SARBOO had no provision for the 600 buses and 1,200 drivers needed to move people onward. A landing site could shorten a helicopter’s trip without completing a patient’s journey to safety.

Katrina Tests the Assumptions

The evacuation order during Katrina sent residents without their own means of escape toward the New Orleans Superdome, designated as a shelter of last resort. People with medical conditions were also directed there, though the expected assistance was not specified. Many residents lacked cars, the city’s transport plans had serious gaps, and traffic had already stalled on routes out of town.

The region’s largest ambulance company, Acadian, received a surge of requests to move patients from hospitals, nursing homes, and homes. Many of the roughly two dozen ambulances made available were stuck on the congested interstate; some began taking patients to the New Orleans Superdome rather than attempting to carry them out of the city. At Chalmette Medical Center, ambulances took an initial group of critically ill patients but did not return. These outcomes showed how a general expectation that hospitals and responders would manage the emergency could fail when roads, vehicles, and destinations were all constrained at once.

The planning problem was not limited to transport. Before Katrina, Memorial Medical Center’s plant operations director, Eric Yancovich, had examined storm-surge estimates and sketched the elevations of hospital entrances and outdoor equipment. He calculated that less than four feet of flooding on Magnolia Street could send water over the loading dock, while critical parts of the emergency power distribution system were at or near ground level. He warned that relatively little water could disable much of the medical center, but recommended electrical and pump upgrades were not funded. During the storm, floodwater reached low-level transfer switches, and the hospital’s final backup generator failed. The exercise’s concern with hospitals becoming isolated thus met a more basic vulnerability: a facility might lose the systems required to care for patients before outside rescue arrived.

What the Exercise Revealed

Hurricane Pam had rehearsed the broad shape of a mass-casualty disaster, including limited aircraft, stranded people, and hospitals expected to endure without immediate assistance. But the exercise did not yield a functioning hospital-evacuation plan, clarify command over that operation, or complete the chain from helicopter landing sites to onward transport. The real crisis also exposed shortages in the city’s evacuation capacity and weaknesses in hospital infrastructure that planning discussions had not remedied.

The exercise’s questions acquired urgency in practice: which patients could travel, who would decide, and what would happen to people who reached a transfer point but had no onward ride? At Causeway Boulevard, Sandra LeBlanc helped sort patients and direct some toward ambulances to Baton Rouge, while many others still needed shelter, food, and water. Her experience illustrated that moving patients was only one part of the problem; displaced people arriving at a staging area also required basic support.

The contrast with Charity Hospital offers a further measure of how preparation and institutional practice shaped outcomes. Charity had drilled for a Category Three hurricane and levee failure, obtained portable generators, oxygen-powered ventilators, and a ham radio system with federal preparedness funds, and held regular morale-building meetings during the crisis. Although its conditions were severe and its evacuation took longer than Memorial’s, fewer than ten patients died. The account does not establish that the Hurricane Pam Exercise produced Charity’s preparations; rather, the comparison underscores that identifying a hazard mattered only when institutions translated preparation into equipment, routines, and sustained care.

The exercise’s lasting significance is therefore not simply that its scenario resembled the disaster that followed. It had made visible the scale of the challenge—thousands of hospital patients, limited airlift, and prolonged isolation—while leaving essential operational questions unresolved. Katrina turned those planning questions into immediate decisions and showed that an exercise could anticipate catastrophe without ensuring that the means to respond were in place.