Hurricane Tammy (2023)
Hurricane Tammy reached Category 2 in the North Atlantic between October 18, 2023 and October 31, 2023, with a lowest pressure of 965 mb, and made landfall.
Track and intensity
The whole track of Hurricane Tammy, colored by strength, with the other storms of the 2023 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
- October 18, 2023 to October 31, 2023
- Peak strength
- Category 2, 95 kt (109 mph)
- Lowest pressure
- 965 mb (28.50 inHg)
- Landfall
- Yes
- Accumulated cyclone energy
- 17.4
- Tropical-storm-force wind reached
- 240 nmi (444 km, 276 mi) from the center at its widest
- Hurricane-force wind reached
- 40 nmi (74 km, 46 mi) from the center at its widest
- Eyewall radius at its peak
- 20 nmi (37 km, 23 mi)
- Overall size
- 240 nmi (444 km, 276 mi) to the outermost closed isobar
- Peak gust in the best track
- 110 kt (127 mph)
- Fastest the center moved
- 18 kt (21 mph)
- Identifier
- AL202023
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.
NOAA Storm Events
0 deaths (0 direct, 0 indirect)$13,400
What National Weather Service offices recorded county by county in 1 states and marine areas, in the United States only. Property and crop damage as each office estimated it, which is not a national loss total.
Landfall
| Time (UTC) | Where | Position | Wind | Pressure |
|---|---|---|---|---|
| Oct 22, 01:15 | Saint John’s, Saint John Parish, Antigua and Barbuda, 53 km away | 17.6N 61.8W | 80 kt (92 mph) | 987 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.
In the United States
NOAA’s Storm Events database, the record National Weather Service offices compile months after a storm, as compiled March 2026.
- Deaths
- 0 (0 direct, 0 indirect)
- Injuries
- 0
- Property damage
- $13,400
- Crop damage
- none recorded
- Events recorded
- 12 in 1 reports from 1 states and marine areas
State by state
| State or marine area | Deaths | Injuries | Damage | Events |
|---|---|---|---|---|
| Puerto Rico | 0 | 0 | $13,400 | 12 |
What was recorded
5 flash flood, 5 flood, 1 funnel cloud, 1 debris flow.
What forecast offices wrote
From the Storm Events narratives, unedited.
A vehicle with two people trapped was located in a flooded Virgilio Biaggi Rd. between Urb. Perla del Sur and Urb. Villa Grillasca. This road is adjacent of the flooded Las Americas Ave. Authorities where rescuing them at that moment. Radar estimated 1 to 4 inches of rain in the Ponce municipality around 6:30 pm.
Ponce, Puerto Rico · Flash Flood · Oct 20, 21:16 UTC
Four cars had people trapped in them due to ponding water on Avenida Las Americas in Ponce near a Tasty Chicken restaurant. The emergency manager reported that the flooding was above the tires of the trucks and his waist. Ave. Las Americas was closed as it was impassable from Tasty Chicken to La Secretaria de Recreacion y Deportes Building. The authorities have the Avenida closed. The people trapped were rescued.
Ponce, Puerto Rico · Flash Flood · Oct 20, 23:00 UTC
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Oct 18, 18:00 | 12.9N 51.0W | 35 kt | 1007 mb | Tropical storm |
| Oct 19, 00:00 | 13.0N 52.5W | 35 kt | 1006 mb | Tropical storm |
| Oct 19, 06:00 | 13.2N 54.0W | 45 kt | 1004 mb | Tropical storm |
| Oct 19, 12:00 | 13.4N 55.3W | 50 kt | 1004 mb | Tropical storm |
| Oct 19, 18:00 | 13.5N 56.4W | 50 kt | 1002 mb | Tropical storm |
| Oct 20, 00:00 | 13.6N 57.2W | 50 kt | 1001 mb | Tropical storm |
| Oct 20, 06:00 | 13.7N 57.9W | 50 kt | 1000 mb | Tropical storm |
| Oct 20, 12:00 | 13.9N 58.4W | 60 kt | 997 mb | Tropical storm |
| Oct 20, 18:00 | 14.1N 58.9W | 65 kt | 991 mb | Hurricane |
| Oct 21, 00:00 | 14.5N 59.6W | 70 kt | 991 mb | Hurricane |
| Oct 21, 06:00 | 14.9N 60.3W | 70 kt | 991 mb | Hurricane |
| Oct 21, 12:00 | 15.6N 60.6W | 75 kt | 987 mb | Hurricane |
| Oct 21, 18:00 | 16.6N 61.0W | 75 kt | 987 mb | Hurricane |
| Oct 22, 00:00 | 17.5N 61.7W | 80 kt | 987 mb | Hurricane |
| Oct 22, 01:15 landfall | 17.6N 61.8W | 80 kt | 987 mb | Hurricane |
| Oct 22, 06:00 | 18.0N 62.2W | 75 kt | 989 mb | Hurricane |
| Oct 22, 12:00 | 18.7N 62.8W | 75 kt | 990 mb | Hurricane |
| Oct 22, 18:00 | 19.4N 63.4W | 75 kt | 990 mb | Hurricane |
| Oct 23, 00:00 | 20.2N 63.9W | 75 kt | 992 mb | Hurricane |
| Oct 23, 06:00 | 21.0N 64.0W | 70 kt | 993 mb | Hurricane |
| Oct 23, 12:00 | 21.6N 64.0W | 70 kt | 993 mb | Hurricane |
| Oct 23, 18:00 | 22.1N 63.8W | 65 kt | 988 mb | Hurricane |
| Oct 24, 00:00 | 22.6N 63.5W | 65 kt | 987 mb | Hurricane |
| Oct 24, 06:00 | 23.1N 63.1W | 65 kt | 987 mb | Hurricane |
| Oct 24, 12:00 | 23.6N 62.6W | 65 kt | 987 mb | Hurricane |
| Oct 24, 18:00 | 24.0N 62.0W | 65 kt | 987 mb | Hurricane |
| Oct 25, 00:00 | 24.5N 61.2W | 75 kt | 976 mb | Hurricane |
| Oct 25, 06:00 | 25.1N 60.4W | 85 kt | 969 mb | Hurricane |
| Oct 25, 12:00 | 26.1N 59.4W | 95 kt | 965 mb | Hurricane |
| Oct 25, 18:00 | 27.5N 58.3W | 85 kt | 968 mb | Hurricane |
| Oct 26, 00:00 | 29.1N 57.8W | 80 kt | 970 mb | Hurricane |
| Oct 26, 06:00 | 30.0N 58.3W | 75 kt | 972 mb | Hurricane |
| Oct 26, 12:00 | 30.5N 58.8W | 70 kt | 975 mb | Hurricane |
| Oct 26, 18:00 | 31.0N 59.5W | 65 kt | 977 mb | Hurricane |
| Oct 27, 00:00 | 31.5N 60.1W | 60 kt | 980 mb | Tropical storm |
| Oct 27, 06:00 | 31.8N 60.6W | 55 kt | 985 mb | Tropical storm |
| Oct 27, 12:00 | 32.0N 61.0W | 55 kt | 988 mb | Tropical storm |
| Oct 27, 18:00 | 32.3N 61.4W | 55 kt | 988 mb | Tropical storm |
| Oct 28, 00:00 | 32.6N 61.5W | 50 kt | 991 mb | Tropical storm |
| Oct 28, 06:00 | 32.9N 61.0W | 45 kt | 994 mb | Tropical storm |
| Oct 28, 12:00 | 33.1N 59.5W | 45 kt | 995 mb | Tropical storm |
| Oct 28, 18:00 | 33.3N 58.0W | 40 kt | 997 mb | Tropical storm |
| Oct 29, 00:00 | 32.8N 56.1W | 35 kt | 1000 mb | Low |
| Oct 29, 06:00 | 32.6N 54.3W | 35 kt | 1002 mb | Low |
| Oct 29, 12:00 | 31.8N 52.5W | 35 kt | 1002 mb | Low |
| Oct 29, 18:00 | 30.9N 50.9W | 35 kt | 1002 mb | Low |
| Oct 30, 00:00 | 29.6N 49.6W | 30 kt | 1004 mb | Low |
| Oct 30, 06:00 | 28.5N 49.0W | 30 kt | 1005 mb | Low |
| Oct 30, 12:00 | 27.5N 48.5W | 30 kt | 1005 mb | Low |
| Oct 30, 18:00 | 26.5N 48.1W | 25 kt | 1006 mb | Low |
| Oct 31, 00:00 | 25.6N 48.5W | 25 kt | 1006 mb | Low |
| Oct 31, 06:00 | 25.1N 49.0W | 25 kt | 1007 mb | Low |
| Oct 31, 12:00 | 24.9N 49.9W | 20 kt | 1008 mb | Low |
| Oct 31, 18:00 | 24.6N 50.6W | 20 kt | 1008 mb | Low |
Other North Atlantic storms of 2023
- Unnamed tropical stormNorth Atlantic · 2023
- Tropical Storm ArleneNorth Atlantic · 2023
- Tropical Storm BretNorth Atlantic · 2023
- Tropical Storm CindyNorth Atlantic · 2023
- Hurricane DonNorth Atlantic · 2023
- Tropical Storm EmilyNorth Atlantic · 2023
- Tropical Storm GertNorth Atlantic · 2023
- Hurricane FranklinNorth Atlantic · 2023 · 3 deaths
- Tropical Storm HaroldNorth Atlantic · 2023
- Hurricane IdaliaNorth Atlantic · 2023 · 8 deaths · $3.6 billion
- Tropical Storm JoseNorth Atlantic · 2023
- Tropical Storm KatiaNorth Atlantic · 2023
- Hurricane LeeNorth Atlantic · 2023 · 4 deaths
- Hurricane MargotNorth Atlantic · 2023
- Hurricane NigelNorth Atlantic · 2023
- Tropical Storm OpheliaNorth Atlantic · 2023 · $450 million
- Tropical Storm PhilippeNorth Atlantic · 2023
- Tropical Storm RinaNorth Atlantic · 2023
- Tropical Storm SeanNorth Atlantic · 2023
- Unnamed tropical depressionNorth Atlantic · 2023
- Unnamed tropical depressionNorth Atlantic · 2023
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.