The 2004 season

Tropical Storm Hermine (2004)

Tropical Storm Hermine peaked at 50 kt in the North Atlantic between August 27, 2004 and August 31, 2004, with a lowest pressure of 1002 mb, and made landfall.

Track and intensity

The whole track of Tropical Storm Hermine, colored by strength, with the other storms of the 2004 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, 2004 to August 31, 2004
Peak strength
Tropical Storm, 50 kt (58 mph)
Lowest pressure
1002 mb (29.59 inHg)
Landfall
Yes
Accumulated cyclone energy
1.3
Tropical-storm-force wind reached
125 nmi (232 km, 144 mi) from the center at its widest
Overall size
180 nmi (333 km, 207 mi) to the outermost closed isobar
Peak gust in the best track
55 kt (63 mph)
Fastest the center moved
23 kt (26 mph)
Identifier
AL082004

Radar at KBOX as it neared land, Aug 31, 06:00 UTC

Deaths and damage

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

Landfall

Time (UTC)WherePositionWindPressure
Aug 31, 06:00Bliss Corner, MA, 13 km away41.5N 70.9W35 kt (40 mph)1012 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
Aug 27, 18:0029.0N 65.2W25 kt1016 mbTropical depression
Aug 28, 00:0029.0N 65.7W25 kt1016 mbTropical depression
Aug 28, 06:0029.1N 66.2W25 kt1016 mbTropical depression
Aug 28, 12:0029.2N 66.6W30 kt1015 mbTropical depression
Aug 28, 18:0029.7N 67.2W30 kt1015 mbTropical depression
Aug 29, 00:0030.1N 68.4W30 kt1014 mbTropical depression
Aug 29, 06:0030.5N 69.2W30 kt1014 mbTropical depression
Aug 29, 12:0031.1N 69.8W35 kt1012 mbTropical storm
Aug 29, 18:0031.8N 70.5W40 kt1005 mbTropical storm
Aug 30, 00:0032.6N 71.1W40 kt1005 mbTropical storm
Aug 30, 06:0033.8N 71.5W50 kt1002 mbTropical storm
Aug 30, 12:0035.8N 71.5W45 kt1007 mbTropical storm
Aug 30, 18:0037.6N 71.4W45 kt1008 mbTropical storm
Aug 31, 00:0039.9N 71.3W35 kt1011 mbTropical storm
Aug 31, 06:00 landfall41.5N 70.9W35 kt1012 mbTropical storm
Aug 31, 12:0043.1N 70.5W25 kt1014 mbExtratropical

Other North Atlantic storms of 2004

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.