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ArchivedPeak tropical storm
Tropical Storm 4S (1984)
Track & history
Peak wind
40 mph / 65 km/h
Min pressure
—
Dates
–
Landfall
Yes
Storm history
This system formed in the Southern Hemisphere in December 1984 and peaked as a tropical storm with maximum sustained winds of 40 mph (65 km/h). The system was tracked for 6 days.
- 1984-12-09 12:00 UTCLandfall · 35 mph / 55 km/h
- 1984-12-10 06:00 UTCLandfall · 30 mph / 45 km/h
- 1984-12-10 15:00 UTCLandfall · 30 mph / 45 km/h
- 1984-12-10 21:00 UTCLandfall · 30 mph / 45 km/h
Track data
Download CSV| Time UTC | Position | Strength | Wind | Pressure |
|---|---|---|---|---|
| 1984-12-08 06:00 | 10.0°S 131.7°E | TD | 30 mph / 45 km/h | — |
| 1984-12-08 12:00 | 10.0°S 131.0°E | TD | 35 mph / 55 km/h | — |
| 1984-12-08 18:00 | 10.2°S 130.5°E | TD | 35 mph / 55 km/h | — |
| 1984-12-09 00:00 | 10.6°S 130.2°E | TD | 35 mph / 55 km/h | — |
| 1984-12-09 06:00 | 11.0°S 130.3°E | TD | 35 mph / 55 km/h | — |
| 1984-12-09 12:00 | 11.3°S 130.6°E | TD | 35 mph / 55 km/h | — |
| 1984-12-09 18:00 | 11.4°S 131.1°E | TD | 35 mph / 55 km/h | — |
| 1984-12-10 00:00 | 11.4°S 131.6°E | TD | 35 mph / 55 km/h | — |
Show all 23 points
| 1984-12-10 06:00 | 11.4°S 132.2°E | TD | 30 mph / 45 km/h | — |
| 1984-12-10 12:00 | 11.4°S 132.7°E | TD | 30 mph / 45 km/h | — |
| 1984-12-10 18:00 | 11.6°S 133.3°E | TD | 30 mph / 45 km/h | — |
| 1984-12-11 00:00 | 12.1°S 134.3°E | TD | 30 mph / 45 km/h | — |
| 1984-12-11 06:00 | 12.7°S 135.7°E | TD | 30 mph / 45 km/h | — |
| 1984-12-11 12:00 | 13.2°S 137.2°E | TD | 30 mph / 45 km/h | — |
| 1984-12-11 18:00 | 13.7°S 138.6°E | TD | 35 mph / 55 km/h | — |
| 1984-12-12 00:00 | 14.0°S 139.2°E | TS | 40 mph / 65 km/h | — |
| 1984-12-12 06:00 | 14.2°S 139.2°E | TS | 40 mph / 65 km/h | — |
| 1984-12-12 12:00 | 14.5°S 138.9°E | TS | 40 mph / 65 km/h | — |
| 1984-12-12 18:00 | 14.9°S 138.6°E | TD | 35 mph / 55 km/h | — |
| 1984-12-13 00:00 | 15.3°S 138.5°E | TD | 35 mph / 55 km/h | — |
| 1984-12-13 06:00 | 15.7°S 138.4°E | TD | 30 mph / 45 km/h | — |
| 1984-12-13 12:00 | 16.1°S 138.3°E | TD | 30 mph / 45 km/h | — |
| 1984-12-13 18:00 | 16.6°S 138.2°E | TD | 25 mph / 35 km/h | — |
Tropical Storm 4S 1984 FAQ
Did Tropical Storm 4S 1984 make landfall?
The best track records 4S crossing land, but not near a sizeable town.
How strong did 4S get in 1984?
4S peaked as a tropical storm with maximum sustained winds of 40 mph (65 km/h).
When did 4S form and dissipate?
4S was first tracked on Dec 8 1984 and last tracked on Dec 13 1984, about 6 days in all.