Tropical Storm Henri (2009)
Tropical Storm Henri peaked at 45 kt in the North Atlantic between October 6, 2009 and October 11, 2009, with a lowest pressure of 1005 mb.
Track and intensity
The whole track of Tropical Storm Henri, colored by strength, with the other storms of the 2009 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 6, 2009 to October 11, 2009
- Peak strength
- Tropical Storm, 45 kt (52 mph)
- Lowest pressure
- 1005 mb (29.68 inHg)
- Landfall
- No; closest approach 33 km (21 mi)
- Accumulated cyclone energy
- 1.2
- Tropical-storm-force wind reached
- 90 nmi (167 km, 104 mi) from the center at its widest
- Eyewall radius at its peak
- 45 nmi (83 km, 52 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
- 16 kt (18 mph)
- Identifier
- AL102009
Deaths and damage
The sources count different things and are not added together.
NOAA Storm Events
0 deaths (0 direct, 0 indirect)$10,000
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
- $10,000
- Crop damage
- none recorded
- Events recorded
- 5 in 1 reports from 1 states and marine areas
State by state
| State or marine area | Deaths | Injuries | Damage | Events |
|---|---|---|---|---|
| Puerto Rico | 0 | 0 | $10,000 | 5 |
What was recorded
5 flash flood.
What forecast offices wrote
From the Storm Events narratives, unedited.
An automobile stalled as they attempted to drive through road 475, Barrio Arenales Bajo. Driver and passenger were rescued.
Isabela, Puerto Rico · Flash Flood · Oct 5, 22:32 UTC
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Oct 6, 00:00 | 15.1N 49.2W | 30 kt | 1008 mb | Tropical depression |
| Oct 6, 06:00 | 16.1N 50.5W | 35 kt | 1007 mb | Tropical storm |
| Oct 6, 12:00 | 17.0N 51.9W | 35 kt | 1007 mb | Tropical storm |
| Oct 6, 18:00 | 17.6N 53.4W | 35 kt | 1007 mb | Tropical storm |
| Oct 7, 00:00 | 18.0N 54.6W | 40 kt | 1006 mb | Tropical storm |
| Oct 7, 06:00 | 18.3N 55.7W | 45 kt | 1005 mb | Tropical storm |
| Oct 7, 12:00 | 18.7N 56.8W | 45 kt | 1006 mb | Tropical storm |
| Oct 7, 18:00 | 19.0N 57.9W | 40 kt | 1007 mb | Tropical storm |
| Oct 8, 00:00 | 19.3N 59.1W | 35 kt | 1008 mb | Tropical storm |
| Oct 8, 06:00 | 19.6N 60.3W | 30 kt | 1010 mb | Tropical depression |
| Oct 8, 12:00 | 20.0N 61.4W | 30 kt | 1011 mb | Tropical depression |
| Oct 8, 18:00 | 20.3N 62.2W | 25 kt | 1012 mb | Low |
| Oct 9, 00:00 | 20.5N 62.9W | 25 kt | 1012 mb | Low |
| Oct 9, 06:00 | 20.6N 63.5W | 20 kt | 1012 mb | Low |
| Oct 9, 12:00 | 20.7N 64.1W | 20 kt | 1012 mb | Low |
| Oct 9, 18:00 | 20.9N 64.9W | 20 kt | 1012 mb | Low |
| Oct 10, 00:00 | 21.0N 65.7W | 20 kt | 1012 mb | Low |
| Oct 10, 06:00 | 20.9N 66.7W | 20 kt | 1012 mb | Low |
| Oct 10, 12:00 | 20.6N 67.6W | 20 kt | 1012 mb | Low |
| Oct 10, 18:00 | 20.3N 68.5W | 20 kt | 1012 mb | Low |
| Oct 11, 00:00 | 20.2N 69.4W | 20 kt | 1012 mb | Low |
| Oct 11, 06:00 | 20.1N 70.5W | 20 kt | 1012 mb | Low |
| Oct 11, 12:00 | 20.2N 71.7W | 20 kt | 1013 mb | Low |
Other North Atlantic storms of 2009
- Unnamed tropical depressionNorth Atlantic · 2009
- Tropical Storm AnaNorth Atlantic · 2009
- Hurricane BillNorth Atlantic · 2009 · 2 deaths · $46 million
- Tropical Storm ClaudetteNorth Atlantic · 2009
- Tropical Storm DannyNorth Atlantic · 2009
- Tropical Storm ErikaNorth Atlantic · 2009
- Hurricane FredNorth Atlantic · 2009
- Unnamed tropical depressionNorth Atlantic · 2009
- Tropical Storm GraceNorth Atlantic · 2009
- Hurricane IdaNorth Atlantic · 2009
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.