Tropical Storm Pat (1977)
Tropical Storm Pat peaked at 55 kt in the South Pacific between March 14, 1977 and March 18, 1977, with a lowest pressure of 980 mb.
Track and intensity
The whole track of Tropical Storm Pat, colored by strength, with the other storms of the 1977 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 14, 1977 to March 18, 1977
- Peak strength
- Tropical Storm, 55 kt (63 mph), ten-minute wind
- Lowest pressure
- 980 mb (28.94 inHg)
- Landfall
- No; closest approach 498 km (309 mi)
- Accumulated cyclone energy
- 0.9
- Identifier
- SH221977
Deaths and damage
No source this site reads publishes a machine-readable casualty or damage figure for a storm of this era. The National Hurricane Center’s season tables begin in 1995 and carry deaths and damage only from 2005 in the Atlantic and 2020 in both basins; the US Storm Events record begins in 1996.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Mar 14, 18:00 | 19.0S 176.0W | Tropical storm | ||
| Mar 15, 00:00 | 19.0S 176.0W | 30 kt | 997 mb | Tropical storm |
| Mar 15, 06:00 | 19.6S 174.2W | Tropical storm | ||
| Mar 15, 12:00 | 20.2S 173.0W | 40 kt | 990 mb | Tropical storm |
| Mar 15, 18:00 | 20.8S 172.5W | Tropical storm | ||
| Mar 16, 00:00 | 21.5S 172.0W | 55 kt | 980 mb | Tropical storm |
| Mar 16, 06:00 | 22.0S 171.1W | Tropical storm | ||
| Mar 16, 12:00 | 22.5S 170.0W | 55 kt | 980 mb | Tropical storm |
| Mar 16, 18:00 | 23.5S 168.6W | Tropical storm | ||
| Mar 17, 00:00 | 25.0S 166.0W | 40 kt | 990 mb | Tropical storm |
| Mar 17, 06:00 | 26.8S 162.5W | Tropical storm | ||
| Mar 17, 12:00 | 29.0S 159.0W | 30 kt | 997 mb | Tropical storm |
| Mar 17, 18:00 | 31.4S 155.5W | Tropical storm | ||
| Mar 18, 00:00 | 34.0S 152.0W | 30 kt | 997 mb | Tropical storm |
Other South Pacific storms of 1977
- Tropical Storm KimSouth Pacific · 1977
- Tropical Storm LaurieSouth Pacific · 1977
- Cyclone TedSouth Pacific · 1977
- Cyclone MarionSouth Pacific · 1977
- Cyclone JuneSouth Pacific · 1977
- Tropical Storm KeithSouth Pacific · 1977
- Unnamed tropical stormSouth Pacific · 1977
- Unnamed tropical stormSouth Pacific · 1977
- Tropical Storm LilySouth Pacific · 1977
- Tropical Storm MilesSouth Pacific · 1977
- Tropical Storm NancySouth Pacific · 1977
- Unnamed tropical stormSouth Pacific · 1977
- Tropical Storm OttoSouth Pacific · 1977
- Tropical Storm NormanSouth Pacific · 1977
- Cyclone RobertSouth Pacific · 1977
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. This storm’s winds are ten-minute averages from its regional agency. They read about 12 percent lower than the one-minute winds US agencies use, so a Saffir-Simpson category is not given for it.
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.