The City of Houston’s Office of Emergency Management told KHOU 11 that Houston Public Works crews are staging barricades at 49 flood-prone locations across the city. At Memorial Drive and Waugh Drive, barricades are already in place in case they are needed.

Houston and the rest of Southeast Texas are about to receive their biggest dose of rain in more than a month this weekend, according to the National Weather Service. Here are five big questions and what to keep in mind before the storms roll in and the puddles start to grow.