The 1991 season

Tropical Storm Hilda (1991)

Tropical Storm Hilda peaked at 55 kt in the Eastern Pacific between August 8, 1991 and August 14, 1991, with a lowest pressure of 992 mb.

Track and intensity

The whole track of Tropical Storm Hilda, colored by strength, with the other storms of the 1991 season in the same basin behind it, and its wind and pressure hour by hour. Every fix is in the track table below.

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The storm

Basin
Eastern Pacific
Dates
August 8, 1991 to August 14, 1991
Peak strength
Tropical Storm, 55 kt (63 mph)
Lowest pressure
992 mb (29.29 inHg)
Landfall
No; closest approach 215 km (134 mi)
Accumulated cyclone energy
3.1
Fastest the center moved
20 kt (23 mph)
Identifier
EP091991

Radar at KVBX as it neared land, Aug 14, 06:00 UTC

Deaths and damage

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.

Track

Time (UTC)PositionWindPressureStatus
Aug 8, 00:0013.3N 101.9W25 kt1009 mbTropical depression
Aug 8, 06:0013.3N 103.1W25 kt1009 mbTropical depression
Aug 8, 12:0013.5N 104.3W30 kt1009 mbTropical depression
Aug 8, 18:0013.9N 105.3W30 kt1008 mbTropical depression
Aug 9, 00:0014.4N 106.1W30 kt1007 mbTropical depression
Aug 9, 06:0014.7N 106.9W30 kt1006 mbTropical depression
Aug 9, 12:0015.1N 107.8W35 kt1005 mbTropical storm
Aug 9, 18:0015.6N 108.9W40 kt1004 mbTropical storm
Aug 10, 00:0016.2N 109.8W45 kt1003 mbTropical storm
Aug 10, 06:0016.7N 110.7W45 kt1000 mbTropical storm
Aug 10, 12:0017.3N 111.7W50 kt997 mbTropical storm
Aug 10, 18:0018.1N 112.7W50 kt995 mbTropical storm
Aug 11, 00:0019.0N 113.5W55 kt993 mbTropical storm
Aug 11, 06:0020.0N 114.3W55 kt992 mbTropical storm
Aug 11, 12:0021.0N 114.5W50 kt995 mbTropical storm
Aug 11, 18:0022.0N 116.7W45 kt1000 mbTropical storm
Aug 12, 00:0023.0N 117.9W45 kt1003 mbTropical storm
Aug 12, 06:0024.1N 118.8W45 kt1005 mbTropical storm
Aug 12, 12:0025.3N 119.6W45 kt1006 mbTropical storm
Aug 12, 18:0026.5N 120.1W40 kt1008 mbTropical storm
Aug 13, 00:0027.7N 120.5W35 kt1009 mbTropical storm
Aug 13, 06:0028.8N 120.9W30 kt1009 mbTropical depression
Aug 13, 12:0029.9N 121.4W25 kt1010 mbTropical depression
Aug 13, 18:0030.9N 121.8W25 kt1010 mbTropical depression
Aug 14, 00:0031.8N 121.7W25 kt1010 mbTropical depression
Aug 14, 06:0032.7N 121.6W25 kt1010 mbTropical depression

Other Eastern Pacific storms of 1991

What this means

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.

Sources

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.