Tropical Storm Cass (1997)
Tropical Storm Cass peaked at 45 kt in the Western Pacific between August 26, 1997 and August 31, 1997, with a lowest pressure of 992 mb, and made landfall.
Radar
Reflectivity now over Tropical Storm Cass. 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
- Western Pacific
- Dates
- August 26, 1997 to August 31, 1997
- Peak strength
- Tropical Storm, 45 kt (52 mph)
- Lowest pressure
- 992 mb (29.29 inHg)
- Landfall
- Yes
- Accumulated cyclone energy
- 0.9
- Identifier
- WP201997
Deaths and damage
No source this site reads carries a casualty or damage figure for this storm.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Aug 26, 00:00 | 19.1N 112.3E | 15 kt | Not reported | |
| Aug 26, 06:00 | 19.1N 112.6E | 25 kt | Not reported | |
| Aug 26, 12:00 | 19.1N 112.9E | 25 kt | Not reported | |
| Aug 26, 18:00 | 19.0N 113.2E | 25 kt | Not reported | |
| Aug 27, 00:00 | 18.8N 113.6E | 25 kt | Tropical storm | |
| Aug 27, 06:00 | 18.5N 114.1E | 25 kt | 1004 mb | Tropical storm |
| Aug 27, 12:00 | 18.2N 114.5E | 25 kt | 1004 mb | Tropical storm |
| Aug 27, 18:00 | 17.9N 114.8E | 25 kt | 1002 mb | Tropical storm |
| Aug 28, 00:00 | 17.6N 114.9E | 30 kt | 1002 mb | Tropical storm |
| Aug 28, 06:00 | 17.3N 115.1E | 30 kt | 1000 mb | Tropical storm |
| Aug 28, 12:00 | 17.1N 115.5E | 30 kt | 1000 mb | Tropical storm |
| Aug 28, 18:00 | 17.1N 116.0E | 30 kt | 1000 mb | Tropical storm |
| Aug 29, 00:00 | 17.6N 117.0E | 35 kt | 998 mb | Tropical storm |
| Aug 29, 06:00 | 18.3N 117.9E | 40 kt | 996 mb | Tropical storm |
| Aug 29, 12:00 | 19.9N 118.3E | 45 kt | 994 mb | Tropical storm |
| Aug 29, 18:00 | 21.6N 118.6E | 40 kt | 994 mb | Tropical storm |
| Aug 30, 00:00 | 23.1N 118.7E | 35 kt | 992 mb | Tropical storm |
| Aug 30, 06:00 | 24.6N 118.2E | 35 kt | 996 mb | Mixed |
| Aug 30, 12:00 | 25.5N 117.6E | 30 kt | 1004 mb | Tropical storm |
| Aug 30, 18:00 | 26.2N 117.0E | 25 kt | 1004 mb | Tropical storm |
| Aug 31, 00:00 | 26.9N 116.4E | 25 kt | Not reported | |
| Aug 31, 06:00 | 27.8N 115.5E | 20 kt | Not reported |
Other Western Pacific storms of 1997
- Tropical Storm HannahWestern Pacific · 1997
- Super Typhoon IsaWestern Pacific · 1997
- Tropical Storm JimmyWestern Pacific · 1997
- Tropical Storm KellyWestern Pacific · 1997
- Tropical Storm LeviWestern Pacific · 1997
- Typhoon MarieWestern Pacific · 1997
- Super Typhoon NestorWestern Pacific · 1997
- Typhoon OpalWestern Pacific · 1997
- Typhoon PeterWestern Pacific · 1997
- Super Typhoon RosieWestern Pacific · 1997
- Tropical Storm ScottWestern Pacific · 1997
- Typhoon TinaWestern Pacific · 1997
- Typhoon VictorWestern Pacific · 1997
- Super Typhoon WinnieWestern Pacific · 1997
- Typhoon YuleWestern Pacific · 1997
- Typhoon AmberWestern Pacific · 1997
- Typhoon ZitaWestern Pacific · 1997
- Super Typhoon BingWestern Pacific · 1997
- Typhoon DavidWestern Pacific · 1997
- Typhoon FritzWestern Pacific · 1997
- Super Typhoon GingerWestern Pacific · 1997
- Tropical Storm HankWestern Pacific · 1997
- Unnamed tropical depressionWestern Pacific · 1997
- Super Typhoon IvanWestern Pacific · 1997
- Super Typhoon JoanWestern Pacific · 1997
- Unnamed tropical stormWestern Pacific · 1997
- Typhoon LindaWestern Pacific · 1997
- Super Typhoon KeithWestern Pacific · 1997
- Typhoon MortWestern Pacific · 1997
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.