The 2013 season

Unnamed tropical depression (2013)

Unnamed tropical depression peaked at 30 kt in the North Atlantic between September 6, 2013 and September 7, 2013, with a lowest pressure of 1008 mb, and made landfall.

Track and intensity

The whole track of Unnamed tropical depression, 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
North Atlantic
Dates
September 6, 2013 to September 7, 2013
Peak strength
Tropical Depression, 30 kt (35 mph)
Lowest pressure
1008 mb (29.77 inHg)
Landfall
Yes
Accumulated cyclone energy
0.0
Eyewall radius at its peak
50 nmi (93 km, 58 mi)
Overall size
160 nmi (296 km, 184 mi) to the outermost closed isobar
Peak gust in the best track
40 kt (46 mph)
Fastest the center moved
7 kt (8 mph)
Identifier
AL082013

Deaths and damage

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

Landfall

Time (UTC)WherePositionWindPressure
Sep 6, 18:00Tampico, Tamaulipas, Mexico, 3 km away22.3N 97.9W30 kt (35 mph)1008 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
Sep 6, 12:0022.4N 97.4W30 kt1009 mbTropical depression
Sep 6, 18:00 landfall22.3N 97.9W30 kt1008 mbTropical depression
Sep 7, 00:0021.9N 98.5W25 kt1009 mbTropical depression
Sep 7, 06:0021.5N 99.0W25 kt1009 mbLow

Other North Atlantic 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.