Tropical Storm Joni (2009)
Tropical Storm Joni peaked at 55 kt in the South Pacific between March 10, 2009 and March 14, 2009, with a lowest pressure of 982 mb.
Track and intensity
The whole track of Tropical Storm Joni, 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
- South Pacific
- Dates
- March 10, 2009 to March 14, 2009
- Peak strength
- Tropical Storm, 55 kt (63 mph)
- Lowest pressure
- 982 mb (29.00 inHg)
- Landfall
- No; closest approach 1693 km (1052 mi)
- Accumulated cyclone energy
- 3.0
- Identifier
- SH202009
Deaths and damage
No source this site reads carries a casualty or damage figure for this storm.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Mar 10, 00:00 | 18.6S 156.2W | 25 kt | 1004 mb | Tropical depression |
| Mar 10, 06:00 | 19.1S 156.8W | 25 kt | 1004 mb | Tropical depression |
| Mar 10, 12:00 | 19.6S 157.4W | 25 kt | 1004 mb | Tropical depression |
| Mar 10, 18:00 | 20.1S 157.7W | 30 kt | 1000 mb | Tropical depression |
| Mar 11, 00:00 | 20.6S 157.9W | 30 kt | 1000 mb | Tropical depression |
| Mar 11, 06:00 | 21.1S 158.1W | 35 kt | 996 mb | Tropical storm |
| Mar 11, 12:00 | 21.7S 158.2W | 40 kt | 993 mb | Tropical storm |
| Mar 11, 18:00 | 22.1S 158.2W | 55 kt | 982 mb | Tropical storm |
| Mar 12, 00:00 | 22.6S 158.7W | 55 kt | 982 mb | Tropical storm |
| Mar 12, 06:00 | 23.3S 158.8W | 55 kt | 982 mb | Tropical storm |
| Mar 12, 12:00 | 23.9S 159.1W | 55 kt | 982 mb | Tropical storm |
| Mar 12, 18:00 | 24.9S 159.3W | 55 kt | 982 mb | Tropical storm |
| Mar 13, 00:00 | 26.1S 159.3W | 55 kt | 982 mb | Tropical storm |
| Mar 13, 06:00 | 27.7S 159.2W | 55 kt | 982 mb | Tropical storm |
| Mar 13, 12:00 | 29.4S 159.2W | 45 kt | 989 mb | Tropical storm |
| Mar 13, 18:00 | 31.5S 158.8W | 35 kt | 996 mb | Tropical storm |
| Mar 14, 00:00 | 33.9S 158.3W | 35 kt | 996 mb | Tropical storm |
| Mar 14, 06:00 | 35.8S 157.5W | 35 kt | 996 mb | Tropical storm |
| Mar 14, 12:00 | 37.4S 156.1W | 30 kt | 1000 mb | Tropical depression |
Other South Pacific storms of 2009
- Unnamed tropical depressionSouth Pacific · 2009
- Tropical Storm CharlotteSouth Pacific · 2009
- Tropical Storm HettieSouth Pacific · 2009
- Tropical Storm EllieSouth Pacific · 2009
- Tropical Storm InnisSouth Pacific · 2009
- Cyclone HamishSouth Pacific · 2009
- Tropical Storm KenSouth Pacific · 2009
- Tropical Storm JasperSouth Pacific · 2009
- Tropical Storm LinSouth Pacific · 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.