We went out this morning around 7 o clock and saw many people walking south, away from the massive floods coming down from the north. These pictures are from the Bang Bua Thong and Bang Yai area.
If you are in Bangkok and want to help you can buy food from one of the supermarkets downtown and bring it to one of the refugee shelters in the outskirts of the city. Information about the situation and evacuation centers can be found here. They need pretty much everything. Food & water especially but also boats can help. Many people are stranded in their homes.