The 2021 season

Tropical Storm Bill (2021)

Tropical Storm Bill peaked at 55 kt in the North Atlantic between June 13, 2021 and June 16, 2021, with a lowest pressure of 992 mb.

Track and intensity

The whole track of Tropical Storm Bill, 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
June 13, 2021 to June 16, 2021
Peak strength
Tropical Storm, 55 kt (63 mph)
Lowest pressure
992 mb (29.29 inHg)
Landfall
No; closest approach 171 km (106 mi)
Accumulated cyclone energy
1.0
Tropical-storm-force wind reached
80 nmi (148 km, 92 mi) from the center at its widest
Eyewall radius at its peak
30 nmi (56 km, 35 mi)
Overall size
120 nmi (222 km, 138 mi) to the outermost closed isobar
Peak gust in the best track
60 kt (69 mph)
Fastest the center moved
35 kt (40 mph)
Identifier
AL022021

Radar at KMHX as it neared land, Jun 14, 06:00 UTC

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
Jun 13, 18:0031.9N 78.1W20 kt1008 mbLow
Jun 14, 00:0032.5N 77.1W20 kt1007 mbLow
Jun 14, 06:0033.2N 75.9W25 kt1006 mbTropical depression
Jun 14, 12:0034.0N 74.5W30 kt1005 mbTropical depression
Jun 14, 18:0034.9N 72.8W35 kt1003 mbTropical storm
Jun 15, 00:0036.0N 70.8W40 kt1000 mbTropical storm
Jun 15, 06:0037.6N 67.8W50 kt996 mbTropical storm
Jun 15, 12:0039.4N 64.0W55 kt992 mbTropical storm
Jun 15, 18:0040.9N 60.8W45 kt997 mbTropical storm
Jun 16, 00:0042.5N 57.9W35 kt1002 mbExtratropical

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.