Sergio (2006)

A tropical disturbance that moved westward from southern Central America developed into a tropical depression about 400 nautical miles south of Manzanillo, Mexico on 13 November 2006. The system strengthened into Tropical Storm Sergio on 14 November, became a hurricane on 15 November, and reached its peak late that day. Sergio moved little overall because it was in weak steering currents: it turned from northwest to southeast as it strengthened, then later tracked northeast and eventually back west-southwest before dissipating on 20 November about 315 nautical miles southwest of Manzanillo.

Sergio did not make any landfalls. The storm remained well offshore of Mexico throughout its life, and no watches or warnings were required.

The peak intensity was 95 kt (about 110 mph) with a minimum central pressure of 965 mb, reached around 1800 UTC on 15 November. At peak the hurricane had a distinct, very small eye and was a Category 2 storm on the Saffir–Simpson scale.

There were no reports of storm surge or measured coastal inundation tied to Sergio, and no significant rainfall impacts reported on land in the official record. Because the hurricane stayed over open water, there are no station reports of notable surge heights or large rainfall totals for Mexican cities or counties in the report.

No deaths or damage were reported in association with Sergio. The report notes that Sergio was the strongest eastern North Pacific hurricane so late in the season and the longest-lived November tropical cyclone on record for that basin; its small size and offshore track limited impacts. Forecast track and intensity errors were larger than average in some periods, and initial forecasts underpredicted the rapid strengthening that occurred on 13–15 November.