In the days and months ahead, the residents of Haiti and parts of the Caribbean will be trying to recover from the impacts of Hurricane Matthew. In Haiti, it is expected that food, water and medical supplies will be in short demand.

In the U.S, states affected by Hurricane Matthew, which include Florida, Georgia, South Carolina and North Carolina, are facing the challenges of dangerous storm surges, flooding and power outages. Organizations such as The Salvation Army and the American Red Cross are helping to provide these states with emergency resources.

Humanitarian organizations have already begun mobilizing to step in as soon as the storm passes. Many local churches and other relief agencies throughout the United States will be collecting donations in the weeks to come.

Here are some organizations you can support:

American Red Cross

The American Red Cross expanded its massive sheltering effort to span five states. Across five states, nearly 7,000 people woke up Monday morning in 156 Red Cross and community emergency shelters:, including 72 shelters in North Carolina with more than 1,800 people; 41 shelters in South Carolina with more than 1,700 people; 19 shelters in Georgia with more than 2,800 people; 21 shelters in Florida with more than 400 people; and three shelters in Virginia with 60 people.

The Red Cross has mobilized more than 3,000 disaster workers, 149 response vehicles, and 100 trailers filled with water, ready-to-eat meals, shelter and kitchen supplies, cleaning supplies and comfort kits, insect repellant, gloves, masks, shovels, rakes, coolers and more. The Red Cross is working in close collaboration with government officials and community partners to coordinate response efforts to ensure people receive the help they need as quickly as possible.

The Red Cross depends on donations to provide immediate relief. ­ Help people affected by Hurricane Matthew by visiting redcross.org , calling 1-800-RED CROSS or texting the word MATTHEW to 90999 to make a $10 donation. Donations enable the Red Cross to prepare for, respond to and help people recover from this disaster. Hurricane Matthew has also forced the cancellation of dozens of blood drives in the Southeast, and dozens more could be cancelled. For those in areas unaffected by the storm, please give blood or platelets now to help patients in need. Please visit redcrossblood.org or call 1-800-RED CROSS (1-800- 733-2767 ) to make an appointment.

International Red Cross

National Red Cross Societies across the Caribbean and central America began preparing for impacts as the hurricane plowed through the Caribbean .

“Our Red Cross teams in Jamaica, Haiti, the Dominican Republic and Colombia are currently running preparedness activities with the communities. Our volunteers and staff stand ready to respond immediately to the needs” said Walter Cotte, International Federation of Red Cross and Red Crescent Societies (IFRC) regional director for the Americas.

In Haiti, the Red Cross has put all its branches on alert and prepositioned stock to respond to the needs of more than 3,000 people.

To donate, visit the organization's website here .

Salvation Army

The Salvation Army of Florida has 31 mobile feeding units ready to respond. Along with its canteens, The Salvation Army also has two field kitchens one command and communication unit and five shower trailers. Its statewide Emergency Disaster office and warehouse in Tampa is the epicenter as The Salvation Army maximizes resources and allocates those resources to the units expected to see the most impact from Hurricane Matthew.

To donate to the domestic relief effort and help provide food, shelter, and other forms of emergency assistance to disaster survivors and rescue workers in Florida, Georgia, North Carolina, South Carolina and other U.S. states affected, visit this page . The Salvation Army also asks people who want to help those directly affected by the storm to call 1-800-SAL-ARMY or text STORM to 51555.

The Salvation Army is also mobilizing resources and personnel to assist with the international relief effort in Haiti and Jamaica, according to its website. The Salvation Army has had a presence in Haiti since 1950, operating schools, clinics, a hospital, feeding programs, children's homes and church-related activities at major facilities in Port-au-Prince, and at other locations in the country. Donations to Caribbean relief efforts can be made here , or by going to salar.my/Matthew .

World Vision

World Vision serves more than 900,000 people , including 58,000 sponsored children, through programs in 200 rural and urban communities in Haiti, according to a press release.

In an e-mail to weather.com, Lauren Fisher, public relations manager for disasters and international news for World Vision, said the non-profit organization had mobilized ahead of the storm to aid the Haitian people.

"(We have) pre-positioned emergency supplies to assist up to 15,000 families with items including tarps, water containers, hygiene kits and blankets," said Fisher. "We’re mobilizing with plans to provide relief for approximately 250,000 people, depending on the impact of the storm."

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She added that "partners in some of the most vulnerable communities have been alerted and are going door-to-door to provide families with information ahead of landfall."

You can donate to World Vision here .

UNICEF

The United Nation's Children's fund is dedicated to the survival and well-being of children.

According to the organization's website, 90 percent of all donations go directly to children . They are accepting donations for disaster relief in Haiti here .

Operation Blessing International

Operation Blessing International (OBI) is one of the largest charities in America, providing humanitarian services such as strategic disaster relief, medical aid, hunger relief, clean water and community development in 37 countries in the last year, according to a press release.

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Founded in 1978, the faith-based non-profit has "touched the lives of more than 292 million people in more than 105 countries and 50 states, providing goods and services valued at over $4.2 billion."

To learn more about their efforts in Haiti and to donate, visit their website here .

Food For The Poor

Food For The Poor is one of the largest international relief and development organizations in the United States, according to its website.

The organization has loaded trucks with rice, canned meats, rice-based nutritional meals known as MannaPack, first aid kits and blankets that will be sent to the worst-hit areas of Haiti.

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Thirty ship containers of relief to Haiti are expected to ship out within the next two weeks, according to ABC 10.

Mercy Corps

Since 1979, Mercy Corps has helped people "grapple with the toughest hardships to survive — and then thrive," according to its website .

"We already have 32 team members in Haiti and our team is prepared to shift its operations to determine how we might help meet urgent needs and support longer-term recovery," Lynn Hector, senior communications officer for Mercy Corps, said in an email to weather.com.

Donations can be made to Mercy Corps’ Humanitarian Response Fund , which helps us respond to emergencies as quickly as possible.

CARE

Founded in 1945, CARE is a leading humanitarian organization fighting global poverty and is one of the largest humanitarian agencies in Haiti.

In response to Matthew, CARE plans to supply clean drinking water, food assistance and emergency supplies such as tarps for shelter, blankets and hygiene kits, according to a press release .

“Hurricane Matthew could have devastating impacts in Haiti, as the country has not experienced a storm of this magnitude since 1954. The people of Haiti were already suffering from a drought as a result of El Nino, and now they will likely endure the shock of torrential flooding as a result of this storm,” said Jean-Michel Vigreux, CARE Country Director in Haiti. “The biggest needs following the storm will be clean drinking water as the anticipated flooding will contaminate the water supply.”

You can support CARE's efforts in Haiti here .

Direct Relief

Direct Relief runs the world's largest hurricane preparedness medical supply program, according to an email sent to weather.com.

"Since the Haiti earthquake in 2010, Direct Relief has been the largest private provider of medical aid into Haiti and has supported over 200 medical facilities with donations of medicines and medical supplies totaling $240 million wholesale," said Paul Sherer, who works with the non-profit organization.

According to Sherer, Direct Relief will use all contributions designated for Hurricane Matthew "solely for relief and recovery efforts related to Hurricane Matthew."

"No portion of any contribution for Hurricane Matthew will be used for fundraising purposes," said Sherer.

To donate to Direct Relief, visit their website here .

Catholic Relief Services

Catholic Relief Services is a faith-based organization committed to assisting the poor and vulnerable overseas.

As soon as the storm passes, CRS is also poised to provide cash to victims so they can purchase critically needed relief supplies and distribute relief items, including bottled water, water purification tabs, blankets, tarps and tents, and kitchen kits.

CRS engineers are on standby to assess structural damage and begin repairs once Matthew clears out. Based on the extent of damage, part of CRS’ response could include temporary shelters and distribution of shelter materials like tarps.

To donate to CRS, visit their website here .

Save the Children

Save the Children has deployed an emergency response team to work with staff and partners on the ground to help the children and families affected by the storm. The organization says they have pre-positioned a stockpile of non-food items, including hygiene kits, baby items, household kits, mosquito nets and jerry cans, which will be used in coming days, according to an email sent to weather.com.

"Our thoughts and hearts go out to the Haitian people, many of whom had yet to fully recover from the earthquake that devastated the country in 2010," said Carolyn Miles, President & CEO of Save the Children. "We have worked in Haiti for more than 30 years and will coordinate closely with the Haitian government to help those most affected by the disaster."

To donate to Save the Children, visit their website here .

International Medical Corps

The International Medical Corps is also responding to Hurricane Matthew in Haiti, giving priority to water, sanitation, and hygiene needs.

“We have pre-positioned our teams so that they will be prepared to immediately travel to the hardest-hit areas once Hurricane Matthew passes,” said Chris Skopec, International Medical Corps’ Senior Director of Emergency Preparedness and Response. “They will assess the most urgent needs so we can respond appropriately with lifesaving assistance and help communities recover and rebuild.”

For more information and to donate, visit their website here .

GlobalGiving

GlobalGiving has long-term partnerships with many locally driven nonprofits in Haiti and other Caribbean nations that are already responding to the storm. GlobalGiving's Fund will support these vetted nonprofits that are deeply-rooted in their countries of operation and have strong track records of success. GlobalGiving is a top-rated charity on Charity Navigator.

For more information and to donate, visit their website here .

Concern Worldwide

Officials with the international humanitarian organization Concern Worldwide said workers are already on the ground responding to life-threatening Hurricane Matthew.