[1] Bob brought moderate damage to portions of the United States Gulf Coast and areas farther inland in July 1979.
Shortly after strengthening into a hurricane, Bob reached its peak intensity with maximum sustained winds of 75 mph (121 km/h) and a minimum barometric pressure of 986 mbar (hPa; 29.12 inHg).
[nb 1] At the same intensity, Bob made landfall west of Grand Isle, Louisiana, and rapidly weakened after moving inland.
Widespread offshore and coastal evacuations took place along the United States Gulf Coast in preparation for Hurricane Bob.
[nb 2] The origin of Hurricane Bob can be traced to a tropical wave that was first located near Cape Verde towards the end of June.
[2] At 0000 UTC on July 11,[3] Bob was estimated to have strengthened to hurricane intensity based on additional reconnaissance flight data.
[2] After moving inland, Bob quickly weakened due to land interaction, and was a mere tropical depression by July 12.
[2] As Bob moved towards the U.S. Gulf Coast, the National Weather Service issued gale warnings for coastal regions extending from Vermilion Bay, Louisiana to Biloxi, Mississippi at 1600 UTC on July 10.
The Mississippi River was temporarily closed to shipping by the United States Coast Guard for eight hours before reopening after the storm.
At the coast, Bob caused moderate storm surge, resulting in coastal waters rising to as high as 5 ft (1.5 m) above normal.
In Mobile County, Alabama, the wave action damaged cars near the shore and disrupted seafood operations in the Bayou La Batre area.
[5] In New Orleans, these strong winds damaged trees and power lines, and also broke several windows in the city's central business district.
[12] Further inland, the remnants of Bob dropped heavy rainfall in the Midwestern United States, peaking at 5.72 in (145 mm) at a station in Indiana University Bloomington.
However, $15 million in damage resulted from flooding in Indiana, with the rest of the storm's monetary impacts arising from coastal regions.