Tropical Storm Bertha (1984)
Tropical Storm Bertha peaked at 35 kt in the North Atlantic between August 30, 1984 and September 4, 1984, with a lowest pressure of 1007 mb.
Track and intensity
The whole track of Tropical Storm Bertha, colored by strength, with the other storms of the 1984 season in the same basin behind it, and its wind and pressure hour by hour. Every fix is in the track table below.
The storm
- Basin
- North Atlantic
- Dates
- August 30, 1984 to September 4, 1984
- Peak strength
- Tropical Storm, 35 kt (40 mph)
- Lowest pressure
- 1007 mb (29.74 inHg)
- Landfall
- No; closest approach 1336 km (830 mi)
- Accumulated cyclone energy
- 0.5
- Fastest the center moved
- 28 kt (32 mph)
- Identifier
- AL071984
Deaths and damage
No source this site reads publishes a machine-readable casualty or damage figure for a storm of this era. The National Hurricane Center’s season tables begin in 1995 and carry deaths and damage only from 2005 in the Atlantic and 2020 in both basins; the US Storm Events record begins in 1996.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Aug 30, 12:00 | 13.1N 41.0W | 25 kt | 1009 mb | Tropical depression |
| Aug 30, 18:00 | 13.3N 42.2W | 25 kt | 1009 mb | Tropical depression |
| Aug 31, 00:00 | 13.7N 43.4W | 30 kt | 1008 mb | Tropical depression |
| Aug 31, 06:00 | 14.4N 44.5W | 30 kt | 1008 mb | Tropical depression |
| Aug 31, 12:00 | 14.9N 45.3W | 35 kt | 1007 mb | Tropical storm |
| Aug 31, 18:00 | 15.7N 46.6W | 35 kt | 1007 mb | Tropical storm |
| Sep 1, 00:00 | 16.3N 47.7W | 35 kt | 1007 mb | Tropical storm |
| Sep 1, 06:00 | 17.0N 48.7W | 35 kt | 1007 mb | Tropical storm |
| Sep 1, 12:00 | 17.5N 49.5W | 30 kt | 1008 mb | Tropical depression |
| Sep 1, 18:00 | 18.2N 50.5W | 30 kt | 1008 mb | Tropical depression |
| Sep 2, 00:00 | 19.2N 51.3W | 30 kt | 1008 mb | Tropical depression |
| Sep 2, 06:00 | 20.0N 52.1W | 30 kt | 1009 mb | Tropical depression |
| Sep 2, 12:00 | 20.8N 53.1W | 25 kt | 1010 mb | Tropical depression |
| Sep 2, 18:00 | 22.6N 52.8W | 25 kt | 1010 mb | Tropical depression |
| Sep 3, 00:00 | 23.8N 52.5W | 25 kt | 1010 mb | Tropical depression |
| Sep 3, 06:00 | 25.1N 51.9W | 25 kt | 1010 mb | Tropical depression |
| Sep 3, 12:00 | 26.1N 50.5W | 20 kt | 1012 mb | Tropical depression |
| Sep 3, 18:00 | 27.1N 49.1W | 20 kt | 1012 mb | Tropical depression |
| Sep 4, 00:00 | 28.3N 47.8W | 20 kt | 1013 mb | Tropical depression |
| Sep 4, 06:00 | 29.6N 46.0W | 20 kt | 1013 mb | Tropical depression |
| Sep 4, 12:00 | 30.5N 44.5W | 20 kt | 1013 mb | Tropical depression |
| Sep 4, 18:00 | 32.0N 42.0W | 20 kt | 1013 mb | Tropical depression |
Other North Atlantic storms of 1984
- Unnamed tropical depressionNorth Atlantic · 1984
- Unnamed tropical depressionNorth Atlantic · 1984
- Unnamed tropical depressionNorth Atlantic · 1984
- Unnamed tropical depressionNorth Atlantic · 1984
- Unnamed tropical stormNorth Atlantic · 1984
- Tropical Storm ArthurNorth Atlantic · 1984
- Tropical Storm CesarNorth Atlantic · 1984
- Unnamed tropical depressionNorth Atlantic · 1984
- Hurricane DianaNorth Atlantic · 1984
- Tropical Storm EdouardNorth Atlantic · 1984
- Tropical Storm FranNorth Atlantic · 1984
- Tropical Storm GustavNorth Atlantic · 1984
- Hurricane HortenseNorth Atlantic · 1984
- Tropical Storm IsidoreNorth Atlantic · 1984
- Hurricane JosephineNorth Atlantic · 1984
- Unnamed tropical depressionNorth Atlantic · 1984
- Hurricane KlausNorth Atlantic · 1984
- Unnamed tropical depressionNorth Atlantic · 1984
- Hurricane LiliNorth Atlantic · 1984
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.
The National Hurricane Center has published no tropical cyclone report for this storm.