Adrian (2005)

Hurricane Adrian formed as a tropical depression on 17 May 2005 about 400 nautical miles west-southwest of El Salvador and moved generally east-northeastward. It strengthened to a tropical storm early on 18 May and then intensified rapidly on 19 May. Adrian reached hurricane strength late on 19 May while located roughly 75 nautical miles southwest of the El Salvador coast, but it weakened abruptly overnight on 19–20 May as its low-level center turned eastward and the storm’s strongest convection moved over El Salvador. The system dissipated over Honduras after moving into the Gulf of Fonseca on 20 May; the circulation was gone by 21 May.

Adrian did not make a hurricane landfall in El Salvador. Post-storm analysis shows the low-level center remained offshore of El Salvador; the mid-level circulation and heavy convection passed over El Salvador early on 20 May. The low-level center entered the Gulf of Fonseca about 1800 UTC 20 May and made landfall on the Pacific coast of Honduras near 2100 UTC 20 May as a tropical depression (about 20 kt).

The maximum analyzed intensity was 70 kt (80 mph) with a minimum central pressure near 982 mb, equivalent to a Category 1 hurricane at peak. The best-track peak occurred around 1800 UTC 19 May before the rapid weakening that followed.

Storm surge and rainfall impacts were mostly from heavy rain rather than large coastal surge. El Salvador’s meteorological service reported at least 4 inches of total rainfall across much of the eastern two-thirds of the country, with isolated mountainous totals up to 16 inches. Observations of tropical-storm-force gusts were reported at El Salvador International Airport (gust to 38 kt at 0500 UTC 20 May) and in San Miguel (gust to 42 kt at 0600 UTC 20 May); a cruising yacht anchored near Bahia del Sol recorded sustained tropical-storm-force winds as strong as 43 kt around 0400 UTC 20 May. A ship about 40 nmi south of the center reported 34-kt winds and a pressure of 1008 mb on 20 May.

Adrian caused evacuations, flooding, and mudslides across parts of Central America. Media reports indicated as many as 23,000 people were evacuated in El Salvador, with smaller evacuations in Guatemala and Nicaragua. Widespread flooding, washed-out roads, and some landslides were reported in El Salvador and Honduras; flooding also affected parts of Nicaragua and Guatemala. One death directly attributed to Adrian—caused by flooding—was reported in Nicaragua. Damage reported in El Salvador and Honduras was generally limited and mostly minor (downed trees, power outages, scattered damage to homes).

Noteworthy items: Adrian was unusually close to El Salvador for an eastern Pacific hurricane—the closest approach to that country in the records since 1949—yet post-analysis showed the low-level center remained offshore. Forecast models and official forecasts captured the northeastward track well, but the abrupt weakening and eastward turn just before landfall were not fully anticipated, producing a northward bias in some later forecasts.