Many Pima County homes and businesses could face flood damage in the wake of the latest large wildfire in the Tucson area, according to authorities. The lightning-caused Bighorn Fire started June 5 and charred about 187 square miles in and near the Santa Catalina Mountains before it was fully contained on July 23. The Arizona Daily Star reports close to 1,000 homes and businesses lying along a number of washes could be flooded during a 100-year storm. That’s more than double the 431 landowners in those areas who got letters from the county in late June telling them their homes could be flooded during a big storm. A county Regional Flood Control District hydrologist told the Star the risk to Tucson residents from monsoon flooding due to the wildfire could last