Ivo (2007)

A tropical depression formed about 400 nautical miles south-southwest of Manzanillo, Mexico on 18 September 2007 from a tropical wave that crossed Central America. The system strengthened to Tropical Storm Ivo on 19 September and became a hurricane early on 20 September while located roughly 450 nautical miles south-southwest of the southern tip of Baja California. Ivo turned northwest and then north as it approached Baja California, weakened beginning 21 September, degenerated to a remnant low on 23 September, and the remnants dissipated by 25 September.

Ivo did not make a confirmed landfall as a tropical cyclone. Tropical storm watches were briefly issued for the southern Baja California peninsula (Santa Fe to Cabo San Lucas) on 22 September and discontinued on 23 September as the cyclone weakened and the threat diminished.

The storm’s peak intensity was estimated at 70 knots (80 mph) with a minimum central pressure of 984 mb, corresponding to a strong Category 1 hurricane. The peak occurred around 1800 UTC on 20 September while Ivo was well offshore.

There were no reported storm surge measurements or reports of tropical-storm-force winds observed on land associated with Ivo in the NHC report. The report likewise gives no specific rainfall totals at cities or counties, and no ship or land observations of tropical-storm-force winds were recorded.

No deaths or damage were reported in association with Ivo. Impacts were minimal because the cyclone remained offshore and weakened before reaching Baja California.

Forecasts anticipated the system’s development more than a day before genesis, and official track forecasts for Ivo were notably accurate compared with long-term averages; intensity forecasts had a positive bias and were somewhat worse than long-term means.