The 2013 season

Tropical Storm Sonia (2013)

Tropical Storm Sonia peaked at 40 kt in the Eastern Pacific between November 1, 2013 and November 4, 2013, with a lowest pressure of 1002 mb, and made landfall.

Track and intensity

The whole track of Tropical Storm Sonia, colored by strength, with the other storms of the 2013 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
November 1, 2013 to November 4, 2013
Peak strength
Tropical Storm, 40 kt (46 mph)
Lowest pressure
1002 mb (29.59 inHg)
Landfall
Yes
Accumulated cyclone energy
0.7
Tropical-storm-force wind reached
80 nmi (148 km, 92 mi) from the center at its widest
Eyewall radius at its peak
60 nmi (111 km, 69 mi)
Overall size
210 nmi (389 km, 242 mi) to the outermost closed isobar
Peak gust in the best track
50 kt (58 mph)
Fastest the center moved
23 kt (26 mph)
Identifier
EP182013

Deaths and damage

No source this site reads carries a casualty or damage figure for this storm.

Landfall

Time (UTC)WherePositionWindPressure
Nov 4, 05:00Licenciado Benito Juárez, Sinaloa, Mexico, 29 km away24.4N 107.6W35 kt (40 mph)1004 mb

Landfall points the US agencies flagged in the best track. The nearest town is named from the site’s gazetteer, not from the report.

Track

Time (UTC)PositionWindPressureStatus
Nov 1, 06:0016.0N 107.9W30 kt1007 mbTropical depression
Nov 1, 12:0016.3N 108.0W30 kt1006 mbTropical depression
Nov 1, 18:0016.6N 108.1W30 kt1006 mbTropical depression
Nov 2, 00:0016.9N 108.3W30 kt1006 mbTropical depression
Nov 2, 06:0017.1N 108.6W30 kt1006 mbTropical depression
Nov 2, 12:0017.3N 109.0W30 kt1006 mbTropical depression
Nov 2, 18:0017.4N 109.5W30 kt1006 mbTropical depression
Nov 3, 00:0017.8N 110.0W35 kt1005 mbTropical storm
Nov 3, 06:0018.5N 110.2W35 kt1004 mbTropical storm
Nov 3, 12:0019.5N 110.0W40 kt1003 mbTropical storm
Nov 3, 18:0020.9N 109.3W40 kt1002 mbTropical storm
Nov 4, 00:0022.7N 108.4W40 kt1003 mbTropical storm
Nov 4, 05:00 landfall24.4N 107.6W35 kt1004 mbTropical storm
Nov 4, 06:0024.6N 107.5W25 kt1007 mbTropical depression

Other Eastern Pacific storms of 2013

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.