Tropical Storm Peter (2021)
Tropical Storm Peter peaked at 45 kt in the North Atlantic between September 19, 2021 and September 22, 2021, with a lowest pressure of 1005 mb.
Track and intensity
The whole track of Tropical Storm Peter, 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.
The storm
- Basin
- North Atlantic
- Dates
- September 19, 2021 to September 22, 2021
- Peak strength
- Tropical Storm, 45 kt (52 mph)
- Lowest pressure
- 1005 mb (29.68 inHg)
- Landfall
- No; closest approach 225 km (140 mi)
- Accumulated cyclone energy
- 1.8
- Tropical-storm-force wind reached
- 150 nmi (278 km, 173 mi) from the center at its widest
- Eyewall radius at its peak
- 50 nmi (93 km, 58 mi)
- Overall size
- 150 nmi (278 km, 173 mi) to the outermost closed isobar
- Peak gust in the best track
- 55 kt (63 mph)
- Fastest the center moved
- 17 kt (20 mph)
- Identifier
- AL162021
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)$12,000
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.
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
- $12,000
- 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 | $12,000 | 12 |
What was recorded
7 debris flow, 3 flood, 2 flash flood.
What forecast offices wrote
From the Storm Events narratives, unedited.
Woman was swept away in her vehicle as she drove the vehicle through a small stream that went out of its banks along Road PR-160 Sector Almirante Norte. Woman was abled to be rescued.
Vega Baja, Puerto Rico · Flash Flood · Sep 22, 01:00 UTC
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Sep 19, 00:00 | 16.4N 52.7W | 30 kt | 1007 mb | Tropical depression |
| Sep 19, 06:00 | 16.8N 54.4W | 35 kt | 1006 mb | Tropical storm |
| Sep 19, 12:00 | 17.3N 55.8W | 40 kt | 1006 mb | Tropical storm |
| Sep 19, 18:00 | 17.9N 57.0W | 45 kt | 1005 mb | Tropical storm |
| Sep 20, 00:00 | 18.4N 58.0W | 45 kt | 1005 mb | Tropical storm |
| Sep 20, 06:00 | 18.8N 59.0W | 45 kt | 1005 mb | Tropical storm |
| Sep 20, 12:00 | 19.2N 60.1W | 45 kt | 1006 mb | Tropical storm |
| Sep 20, 18:00 | 19.5N 61.2W | 45 kt | 1007 mb | Tropical storm |
| Sep 21, 00:00 | 19.6N 62.3W | 45 kt | 1007 mb | Tropical storm |
| Sep 21, 06:00 | 19.6N 63.2W | 40 kt | 1007 mb | Tropical storm |
| Sep 21, 12:00 | 19.8N 64.0W | 35 kt | 1008 mb | Tropical storm |
| Sep 21, 18:00 | 20.2N 64.6W | 30 kt | 1008 mb | Tropical depression |
| Sep 22, 00:00 | 20.6N 65.2W | 30 kt | 1008 mb | Tropical depression |
| Sep 22, 06:00 | 21.0N 65.8W | 30 kt | 1008 mb | Tropical depression |
| Sep 22, 12:00 | 21.4N 66.4W | 30 kt | 1008 mb | Tropical depression |
| Sep 22, 18:00 | 21.7N 66.9W | 30 kt | 1008 mb | Tropical depression |
Other North Atlantic storms of 2021
- Tropical Storm AnaNorth Atlantic · 2021
- Tropical Storm BillNorth Atlantic · 2021
- Tropical Storm ClaudetteNorth Atlantic · 2021 · 4 deaths · $375 million
- Tropical Storm DannyNorth Atlantic · 2021
- Hurricane ElsaNorth Atlantic · 2021 · 13 deaths · $1.2 billion
- Tropical Storm FredNorth Atlantic · 2021 · 6 deaths · $1.3 billion
- Hurricane GraceNorth Atlantic · 2021 · 16 deaths
- Hurricane HenriNorth Atlantic · 2021 · $700 million
- Hurricane IdaNorth Atlantic · 2021 · 55 deaths · $75 billion
- Tropical Storm KateNorth Atlantic · 2021
- Tropical Storm JulianNorth Atlantic · 2021
- Hurricane LarryNorth Atlantic · 2021 · 5 deaths
- Tropical Storm MindyNorth Atlantic · 2021
- Hurricane NicholasNorth Atlantic · 2021 · 2 deaths · $1.0 billion
- Tropical Storm OdetteNorth Atlantic · 2021
- Tropical Storm RoseNorth Atlantic · 2021
- Hurricane SamNorth Atlantic · 2021
- Tropical Storm TeresaNorth Atlantic · 2021
- Tropical Storm VictorNorth Atlantic · 2021
- Tropical Storm WandaNorth Atlantic · 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.