The orchestra will also close its administrative offices tomorrow and September 23.
According to the National Hurricane Center, Rita is currently expected to reach Texas's Gulf coast early on the morning of September 24. Houston is approximately 50 miles inland.
Tonight's concert, a free event for victims of Hurricane Katrina and volunteers who assisted refugees from the storm, will go ahead as planned. The concert features a guest appearance by the Dresden State Orchestra of Saxony.
This weekend's concerts were to feature Tchaikovsky's The Voyevoda and his Symphony No. 5 ("Path_tique"), as well as Rachmaninoff's Third Piano Concerto, with Yefim Bronfman as soloist; music director Hans Graf was to conduct. Patrons holding tickets for the concerts can exchange them for a future performance, donate them to the orchestra, or receive a refund by calling (713) 224-7575.