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Best track · IBTrACS
ArchivedPeak depression
Tropical Depression 1S (1981)
Track & history
Peak wind
35 mph / 55 km/h
Min pressure
—
Dates
–
Landfall
None
Storm history
This system formed in the Southern Hemisphere in July 1981 and peaked as a tropical depression with maximum sustained winds of 35 mph (55 km/h). It did not make landfall. The system was tracked for 3 days.
Track data
Download CSV| Time UTC | Position | Strength | Wind | Pressure |
|---|---|---|---|---|
| 1981-07-25 12:00 | 11.8°S 86.7°E | TD | 25 mph / 35 km/h | — |
| 1981-07-25 18:00 | 11.6°S 86.4°E | TD | 30 mph / 45 km/h | — |
| 1981-07-26 00:00 | 11.3°S 86.2°E | TD | 30 mph / 45 km/h | — |
| 1981-07-26 06:00 | 10.9°S 86.2°E | TD | 30 mph / 45 km/h | — |
| 1981-07-26 12:00 | 10.4°S 86.1°E | TD | 30 mph / 45 km/h | — |
| 1981-07-26 18:00 | 10.1°S 85.7°E | TD | 35 mph / 55 km/h | — |
| 1981-07-27 00:00 | 10.0°S 85.3°E | TD | 35 mph / 55 km/h | — |
| 1981-07-27 06:00 | 10.3°S 85.1°E | TD | 35 mph / 55 km/h | — |
Show all 13 points
| 1981-07-27 12:00 | 10.7°S 84.9°E | TD | 30 mph / 45 km/h | — |
| 1981-07-27 18:00 | 11.1°S 84.9°E | TD | 30 mph / 45 km/h | — |
| 1981-07-28 00:00 | 11.6°S 84.8°E | TD | 30 mph / 45 km/h | — |
| 1981-07-28 06:00 | 12.0°S 84.7°E | TD | 30 mph / 45 km/h | — |
| 1981-07-28 12:00 | 12.5°S 84.6°E | TD | 25 mph / 35 km/h | — |
Tropical Depression 1S 1981 FAQ
Did Tropical Depression 1S 1981 make landfall?
No. The best track does not record a landfall for 1S; it stayed over water.
How strong did 1S get in 1981?
1S peaked as a tropical depression with maximum sustained winds of 35 mph (55 km/h).
When did 1S form and dissipate?
1S was first tracked on Jul 25 1981 and last tracked on Jul 28 1981, about 3 days in all.