The Category 4 hurricane Harvey has flooded Houston, Texas with 11 trillion gallons of water.

So far the death toll is at 6. But officials believe there will be many grisly discoveries when the water starts to leave America's fourth biggest city.

They also expect around 30,000 people will be forced to take refuge in temporary shelters.

Houston's been Drake's U.S. home for years, and Drizzy pledged his support to H-Town in an IG post.

[Related: Drake's going to have a pop up strip club in Houston.]

We are currently overseas in London and all I can think about is how devastated I am as I look at images of the damage Hurricane Harvey has caused. I am praying for the safety of all those affected. Houston has truly been a home to me over the last 8 years. Myself and @futuretheprince are working with local relief groups to aid and assist the people of Texas in anyway we can and in the most immediate way possible. I also want to thank all the men and women of service and volunteers for their courageous efforts to help people in need. I encourage everyone to do what they can to assist the people of Texas knowing whatever effort you can make to help will go a long way.

A post shared by champagnepapi (@champagnepapi) on Aug 28, 2017 at 2:13am PDT

Here are some images of the flooding.

Much of Houston’s flood damage could be uninsured https://t.co/SPjNZ4Id9E pic.twitter.com/rjJSh98QjI

— Wall Street Journal (@WSJ) August 28, 2017

Houston. Can't imagine what another two feet of rain would do. ht @kevinselle pic.twitter.com/LUBzD4XzM1

— ian bremmer (@ianbremmer) August 27, 2017

WATCH: Family floating on an air mattress found @CourtneyABC13's rescue boat by the Barker Reservoir #HoustonFlood: https://t.co/IgIDrv7GTe pic.twitter.com/vAXeHeEfHV

— ABC13 Houston (@abc13houston) August 28, 2017

Houston rapper Travis Scott posted a message of optimism amid the carnage.

Texas needs everybody more than ever. We gon get thru this and bounce back stronger than ever

— TRAVIS SCOTT (@trvisXX) August 28, 2017