The Haitian government is advising hundreds of thousands of residents of Port-au-Prince's tent cities to evacuate as Tropical Storm Tomas threatens Haiti after killing at least 14 in St. Lucia.
Aid groups and the government are already struggling to control a cholera outbreak in Haiti that has killed at least 330 and sickened more than 4,700.
More than 1 million still remain homeless in the earthquake-shattered Port-au-Prince 10 months after the disaster.
Tomas is expected to strengthen over the next two days to a hurricane. Tent dwellers are being urged to voluntarily evacuate the tent cities to the homes of family and friends for their safety.
Read more on the storm at msnbc.com. To learn more about Heifer's projects in Haiti, read the latest update in the Holiday 2010 issue of World Ark.