(CBS) -- Hurricane Harvey has left neighborhoods under water and the rain is expected to continue in Southeast Texas.
The hurricane reached land late Friday as a Category 4 storm, with sustained winds of 130 mph. The storm was later downgraded to a Tropical Storm, but Harvey remains a powerful and slow-moving.
Some parts of Southeast Texas could see up to 50 inches of rain by the time the storm moves out, which may not be until Friday. Two-thousand people have been rescued from their cars and homes, but so many are still waiting for help.
Another thousand National Guard members were sent Monday to help, adding to the 3,000 already there. Shelters are packed with people who have lost everything.
Here are some ways that you can assist victims of the storm:
The American Red Cross, the largest humanitarian organization in the world, is actively seeking donations of food and money to help victims of Hurricane Harvey.
They have already sent enough pallets of water and ready-to-eat meals to supply 28,000 people and the amount to feed an additional 20,000 people is already on the way. But more of course is needed.
"We are doing is mobilizing our volunteer force. Our volunteers who live and work in Chicago are going down. We've already sent more than a dozen as well as our emergency response vehicle. They are already on the ground. They are already working in shelters for people who have evacuated the affected areas," said American Red Cross Disaster Program Director, Harley Jones.
The American Red Cross is always looking for more volunteers. If you are interested in volunteering, you can visit redcross.org. The organization is also looking for financial donations.
The organization is offering a variety of ways for people to donate. You can call 1-800-RED CROSS or text HARVEY to 90999 to make a $10 donation for those in need.
The Salvation Army Emergency Disaster Services, the disaster relief arm of the Protestant charitable organization, is accepting monetary donations to help victims of Hurricane Harvey.
Salvation Army disaster workers from six states, including Arkansas, Oklahoma, Florida, Georgia, Kentucky, Tennessee have headed to Texas to help. They have provided food, water, clothing, cleaning supplies and recovery support to victims.
"As Hurricane Harvey causes widespread damage across Texas, The Salvation Army is ready to provide physical, emotional and spiritual care to survivors and relief workers. Salvation Army disaster teams from across the country are mobilizing and, even after disaster response efforts are over, The Salvation Army will remain in communities impacted by this terrible storm, supporting long-term disaster recovery efforts and providing ongoing assistance to those in need," the website reads.
You can donate by calling 1-800-SAL-ARMY, texting STORM to 51555, sending a donation through the mail or online at helpsalvationarmy.com.
Samaritan's Purse, a nondenominational evangelical Christian organization that provides spiritual and physical aid to hurting people around the world, is accepting donations to assist those affected by Hurricane Harvey.
The organization sent their disaster relief units to Texas to help residents struggling with rain, flooding, and destruction caused by Hurricane Harvey.
"My heart continues to be heavy for the good people of South Texas as they begin to deal with the devastation caused by Hurricane Harvey—and the flood waters are still rising in many areas," said Franklin Graham, Samaritan's Purse president. "We have pre-positioned Samaritan's Purse disaster relief trucks and materials outside Dallas and will be moving into the hardest hit areas as soon as we are given the all-clear by the state authorities. We hope that over the next few months there will be thousands of volunteers who will want to come and help those whose homes have been damaged by this destructive storm."
The Southern Baptist Disaster Relief meets the urgent needs of communities in crisis, from serving food to volunteers in rebuilding communities.
"Send Relief and Southern Baptist Disaster Relief (SBDR) teams began responding before Hurricane Harvey made landfall, deploying hundreds of crisis buckets and sending other supplies that would be needed in the immediate aftermath of the storm. Now we have been asked to assist in the care of up to 60,000 displaced Texans in addition to preparing thousands of hot meals and performing mud-out, chainsaw and cleaning services to restore survivors' homes," the website reads.
"Any donation will equip our volunteers to operate units and provide hot showers, fresh laundry, homemade meals and a kind face to confide in."
You can help by donating online or by texting SENDRELIEF to 41444 to aid the victims of Hurricane Harvey.
Heart to Heart Inernational, a humanitarian organization that provides crisis relief worldwide, is seeking donations to help victims of Hurricane Harvey.
"Heart to Heart International's Disaster Response Team first stop was Belton Texas Expo Center to drop off hygiene and health kits. The Expo and Bell County Sheriff's Department have set up a response center to help those that evacuated from Hurricane Harvey and needed assistance. HHI's timing was perfect because the county was about to go buy hygiene kits for their guests," the website reads.
"The DRT team is now located in Corpus Christi, Texas. HHI and Convoy of Hope have teamed up to supply much-needed water, supplies, hygiene/health kits and minor medical care/Tetanus shots."
You can donate and support their efforts online.
Save the Children, helps children every day and in times of crisis in transforming their lives and the future we share. They have set up a fund to help the children affected by Hurricane Harvey. You can donate here.
Coalition for the Homeless of Houston/Harris County - Provides shelter and resources for the homeless of Houston and surrounding areas.
Texas Diaper Bank - Provides diapers to those in need. The local chapter is putting together disaster relief kits for families with young children.
Portlight - a disaster response organization specifically serving individuals with disabilities.
"We need your help!! The flooding caused by Hurricane Harvey will leave many people stranded and already our Partnership for Inclusive Disaster Strategies Disability Hotline (800) 626-4959 is receiving urgent requests for assistance for people with disabilities and older adults. We're rallying stakeholders and working together to help get people to safety, and providing for any immediate needs they may have for durable medical equipment and other assistive technology, responding to evacuation and sheltering issues and problem-solving for a variety of immediate disability accessibility issues," a Portlight announcement reads.
Food banks throughout Texas are also accepting donations for people affected by the storm. You can donate money to Feeding Texas, a network of the state's food banks. Or visit specific food banks' websites, such as, The Galveston Food Bank, Food Bank Of Corpus Christi, or Houston Food Bank.
Animal shelters and rescue groups are taking in numerous pets displaced by the storm. Those groups include the SPCA of Texas, Austin Pets Alive!, Dallas Animal Services and the San Antonio Humane Society.
Blood centers expect a supply shortage because of the closure of some blood banks along the Texas coast. Centers have put out calls for extra donors to help.
South Texas Blood & Tissue Center placed a slide on its website ahead of the storm and is continues to seek donations.
If you're not in Texas, you can search online for blood drives local to you or book an appointment via Red Cross
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