Unnamed tropical storm (2017)
Unnamed tropical storm peaked at 40 kt in the South Pacific between April 4, 2017 and April 11, 2017, with a lowest pressure of 993 mb.
Radar
Reflectivity now over Unnamed tropical storm. Open it to see storms, cones and warnings on the map.























Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.
The storm
- Basin
- South Pacific
- Dates
- April 4, 2017 to April 11, 2017
- Peak strength
- Tropical Storm, 40 kt (46 mph)
- Lowest pressure
- 993 mb (29.32 inHg)
- Landfall
- No; closest approach 480 km (298 mi)
- Accumulated cyclone energy
- 1.1
- Identifier
- SH142017
Deaths and damage
No source this site reads carries a casualty or damage figure for this storm.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Apr 4, 00:00 | 16.8S 169.0W | 25 kt | 1004 mb | Tropical depression |
| Apr 4, 06:00 | 17.8S 169.4W | 25 kt | 1004 mb | Tropical depression |
| Apr 4, 12:00 | 18.5S 169.6W | 30 kt | 1000 mb | Tropical depression |
| Apr 4, 18:00 | 19.0S 169.8W | 35 kt | 996 mb | Tropical storm |
| Apr 5, 00:00 | 19.5S 170.1W | 35 kt | 996 mb | Tropical storm |
| Apr 5, 06:00 | 19.9S 170.5W | 35 kt | 996 mb | Tropical storm |
| Apr 5, 12:00 | 20.0S 170.6W | 35 kt | 998 mb | Tropical storm |
| Apr 5, 18:00 | 20.2S 170.7W | 35 kt | 998 mb | Tropical storm |
| Apr 6, 00:00 | 20.4S 170.5W | 35 kt | 1001 mb | Tropical storm |
| Apr 6, 06:00 | 20.7S 170.1W | 35 kt | 996 mb | Tropical storm |
| Apr 6, 12:00 | 21.1S 169.5W | 35 kt | 996 mb | Tropical storm |
| Apr 6, 18:00 | 21.5S 168.8W | 35 kt | 996 mb | Tropical storm |
| Apr 7, 00:00 | 22.1S 168.6W | 30 kt | 1000 mb | Tropical depression |
| Apr 7, 06:00 | 21.9S 169.1W | 30 kt | 1000 mb | Tropical depression |
| Apr 7, 12:00 | 21.8S 169.5W | 25 kt | 1004 mb | Tropical depression |
| Apr 7, 18:00 | 21.9S 169.5W | 25 kt | 1004 mb | Tropical depression |
| Apr 8, 00:00 | 22.0S 170.4W | 25 kt | 1004 mb | Tropical depression |
| Apr 8, 06:00 | 21.9S 171.0W | 25 kt | 1004 mb | Tropical depression |
| Apr 8, 12:00 | 21.7S 171.5W | 25 kt | 1004 mb | Tropical depression |
| Apr 8, 18:00 | 21.7S 172.0W | 25 kt | 1004 mb | Tropical depression |
| Apr 9, 00:00 | 21.9S 172.8W | 25 kt | 1004 mb | Tropical depression |
| Apr 9, 06:00 | 22.4S 173.4W | 25 kt | 1004 mb | Tropical depression |
| Apr 9, 12:00 | 23.0S 173.7W | 30 kt | 1000 mb | Subtropical depression |
| Apr 9, 18:00 | 23.8S 173.5W | 30 kt | 1000 mb | Subtropical depression |
| Apr 10, 00:00 | 24.5S 173.0W | 30 kt | 1000 mb | Subtropical depression |
| Apr 10, 06:00 | 24.8S 172.2W | 30 kt | 1000 mb | Subtropical depression |
| Apr 10, 12:00 | 25.1S 171.3W | 30 kt | 1000 mb | Subtropical depression |
| Apr 10, 18:00 | 25.5S 170.2W | 30 kt | 1000 mb | Subtropical depression |
| Apr 11, 00:00 | 25.8S 168.9W | 30 kt | 1000 mb | Subtropical depression |
| Apr 11, 06:00 | 25.9S 168.4W | 35 kt | 996 mb | Subtropical storm |
| Apr 11, 12:00 | 26.1S 168.1W | 35 kt | 996 mb | Subtropical storm |
| Apr 11, 18:00 | 25.8S 168.0W | 40 kt | 993 mb | Subtropical storm |
Other South Pacific storms of 2017
- Tropical Storm AlfredSouth Pacific · 2017
- Tropical Storm BartSouth Pacific · 2017
- Unnamed tropical stormSouth Pacific · 2017
- Tropical Storm BlancheSouth Pacific · 2017
- Cyclone DebbieSouth Pacific · 2017
- Cyclone CookSouth Pacific · 2017
- Cyclone FrancesSouth Pacific · 2017
- Cyclone DonnaSouth Pacific · 2017
- Cyclone EllaSouth Pacific · 2017
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.