In a modified setting, the park is now open to visitors.
On Tuesday, the area saw more than an inch of rainfall. This caused flash flooding in the park.
Motorists are advised to slow down when driving and to be prepared for delays and debris.
SR-9 was reopened along with the South and East Entrances to inbound and outbound traffic.
All three operating areas are the Zion Canyon Visitor Center and Park Store, as well as the in-town shuttle.
Officials stated that the lot for oversized vehicles will remain closed until further notice. Visitors with large vehicles are asked not to park on Lion Boulevard.
According to the National Weather Service, there is a moderate risk of flash flooding in the park on Wednesday.
Crews ask visitors to remember the flood danger when they visit the park.
They advised that if the city floods, to turn around and not risk it.
Alternative east and west routes can be taken via Highway 59, Hurricane, Utah to Fredonia (Arizona) and Highway 14 between Cedar City, Utah and Long Valley Junction, Highway 89.
