Hurricane Guillermo (1991)

Basin

Eastern Pacific

Dates

August 4, 1991 to August 10, 1991

Peak strength

Category 1, 70 kt (81 mph)

Lowest pressure

983 mb (29.03 inHg)

Landfall

No; closest approach 330 km (205 mi)

Accumulated cyclone energy

6.0

Fastest the center moved

18 kt (21 mph)

Identifier

EP081991

No source this site reads publishes a machine-readable casualty or damage figure for a storm of this era. The National Hurricane Center’s season tables begin in 1995 and carry deaths and damage only from 2005 in the Atlantic and 2020 in both basins; the US Storm Events record begins in 1996.

• Tropical Storm AndresEastern Pacific · 1991Tropical Storm55 kt · 994 mb
• Tropical Storm BlancaEastern Pacific · 1991Tropical Storm55 kt · 994 mb
• Hurricane CarlosEastern Pacific · 1991Cat 3105 kt · 955 mb
• Hurricane DeloresEastern Pacific · 1991Cat 175 kt · 979 mb
• Unnamed tropical depressionEastern Pacific · 1991Tropical Depression30 kt
• Hurricane EnriqueEastern Pacific · 1991Cat 165 kt · 987 mb
• Hurricane FefaEastern Pacific · 1991Cat 3105 kt · 959 mb
• Tropical Storm HildaEastern Pacific · 1991Tropical Storm55 kt · 992 mb
• Unnamed tropical depressionEastern Pacific · 1991Tropical Depression30 kt
• Tropical Storm IgnacioEastern Pacific · 1991Tropical Storm55 kt · 994 mb
• Hurricane JimenaEastern Pacific · 1991Cat 4115 kt · 945 mb
• Hurricane KevinEastern Pacific · 1991Cat 4125 kt · 935 mb
• Hurricane LindaEastern Pacific · 1991Cat 3105 kt · 957 mb
• Hurricane MartyEastern Pacific · 1991Cat 170 kt · 979 mb
• Hurricane NoraEastern Pacific · 1991Cat 290 kt · 970 mb
• Hurricane ZeldaEastern Pacific · 1991Cat 180 kt · 975 mb

A best track is the record a warning agency settles on after the storm, not what it said at the time: position, maximum sustained wind and central pressure every six hours, revised against every observation that came in later. Category is the Saffir-Simpson scale, which runs from Category 1 at 64 kt to Category 5 at 137 kt and reads wind only, so it says nothing about surge or rain. Accumulated cyclone energy adds up the square of the wind through the storm's life, so it counts strength and duration together.

Storm history from NOAA NCEI’s International Best Track Archive for Climate Stewardship (IBTrACS), which merges the official best track of every warning agency. Live storms, cones, watches and warnings from the National Hurricane Center and the Central Pacific Hurricane Center. Archived radar from NOAA’s Level II archive.

The National Hurricane Center has published no tropical cyclone report for this storm.