The 2021 season

Tropical Storm Kate (2021)

Tropical Storm Kate peaked at 40 kt in the North Atlantic between August 27, 2021 and September 1, 2021, with a lowest pressure of 1004 mb.

Track and intensity

The whole track of Tropical Storm Kate, colored by strength, with the other storms of the 2021 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
August 27, 2021 to September 1, 2021
Peak strength
Tropical Storm, 40 kt (46 mph)
Lowest pressure
1004 mb (29.65 inHg)
Landfall
No; closest approach 987 km (613 mi)
Accumulated cyclone energy
0.7
Tropical-storm-force wind reached
40 nmi (74 km, 46 mi) from the center at its widest
Eyewall radius at its peak
25 nmi (46 km, 29 mi)
Overall size
140 nmi (259 km, 161 mi) to the outermost closed isobar
Peak gust in the best track
50 kt (58 mph)
Fastest the center moved
16 kt (18 mph)
Identifier
AL102021

Deaths and damage

The sources count different things and are not added together.

National Hurricane Center

0 direct deathsnone recorded in the United States

The season table in NHC’s report archive, final report. Direct deaths are those caused by the storm’s own wind, water or surge, anywhere in the world.

Track

Time (UTC)PositionWindPressureStatus
Aug 27, 12:0013.1N 47.3W25 kt1009 mbLow
Aug 27, 18:0013.3N 48.4W25 kt1009 mbLow
Aug 28, 00:0013.5N 49.5W25 kt1009 mbLow
Aug 28, 06:0013.7N 49.8W30 kt1008 mbTropical depression
Aug 28, 12:0014.5N 50.0W30 kt1008 mbTropical depression
Aug 28, 18:0015.2N 50.0W30 kt1008 mbTropical depression
Aug 29, 00:0016.2N 49.9W30 kt1008 mbTropical depression
Aug 29, 06:0017.3N 50.0W30 kt1008 mbTropical depression
Aug 29, 12:0018.4N 50.2W30 kt1008 mbTropical depression
Aug 29, 18:0019.2N 50.3W30 kt1008 mbTropical depression
Aug 30, 00:0019.8N 50.5W30 kt1008 mbTropical depression
Aug 30, 06:0020.5N 50.6W35 kt1006 mbTropical storm
Aug 30, 12:0021.3N 50.8W40 kt1004 mbTropical storm
Aug 30, 18:0022.1N 50.9W35 kt1006 mbTropical storm
Aug 31, 00:0022.6N 50.9W35 kt1006 mbTropical storm
Aug 31, 06:0022.8N 50.9W35 kt1006 mbTropical storm
Aug 31, 12:0023.2N 50.9W30 kt1007 mbTropical depression
Aug 31, 18:0023.9N 50.9W30 kt1007 mbTropical depression
Sep 1, 00:0024.6N 51.2W30 kt1007 mbTropical depression
Sep 1, 06:0025.3N 51.5W30 kt1008 mbTropical depression
Sep 1, 12:0026.6N 52.3W30 kt1009 mbTropical depression

Other North Atlantic storms of 2021

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.