The hurricanes that flattened the Gulf Coast in August and September tested corporate logistics and supply chain operations, as companies struggled to move relief supplies and inventory to and from the region before and after each storm. One lesson from these storms is that having procedures for communicating quickly about what needs to be done is as essential for companies as having integrated inventory and logistics systems.

"Resilient companies communicate obsessively," says Yossi Sheffi, director of the MIT Center for Transportation and Logistics.

Wal-Mart, for example, was able to move food, water, generators and other goods to areas hit by hurricanes Katrina and Rita following each storm because it has an emergency operations center that is staffed every day around the clock by decision-makers who have access to all of the company’s systems.

Under normal circumstances, a six- to 10-person staff at the center responds to everyday emergencies, such as a fire in a store or a shooting outside one. When disasters such as hurricanes threaten, the staff is joined by senior representatives from each of the company’s functional areas, says Jason Jackson, Wal-Mart’s director of business continuity. The center is equipped with hurricane-tracking software, and on Aug. 24, days before Katrina made landfall, company managers were already planning their response.

The emergency response team works in a large, open room that is designed with efficient communication in mind. When a district manager calls from the field to tell the operations manager in the center that he needs 10 trucks of water, the operations manager can turn to the person manning the replenishment systems.

The replenishment manager then checks his supplies. "He says, ’I can get you eight [trucks] today and two tomorrow,’" says Jackson. "He then tells the logistics guy. This all takes place in a matter of seconds."

As a result, Wal-Mart trucks were distributing aid to Katrina’s victims days before federal relief arrived. During a less destructive hurricane, Wal-Mart ships between 200 and 400 containers of goods for sale or relief. In the first two and a half weeks following Katrina, Wal-Mart shipped 2,500 containers to the region and delivered another 517 containers post-Rita. Wal-Mart also set up satellite links for its stores that lost phone or Internet service so that they could stay connected to headquarters; Wal-Mart stores in areas that were without power for weeks were able to keep generators in stock.

Starbucks was also able to get aid to hurricane-ravaged areas quickly. When the company got a request from the American Red Cross to donate coffee, managers at headquarters contacted the company’s distributors to discuss how they could help. Starbucks determined that it could donate 30,000 pounds of coffee, 235,000 bottles of water and 44,000 pastries without affecting supplies to its retail stores. Efficient communication also helped many companies avoid losing goods in the storm. MIT’s Sheffi notes that GM was able to contact its dealers in New Orleans about moving their inventory out of the city and then sent car carriers to pick up the vehicles.