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ArchivedPeak depression
Tropical Depression 31W (1999)
Track & history
Peak wind
35 mph / 55 km/h
Min pressure
—
Dates
–
Landfall
Lang Suan
Storm history
This system formed in the West Pacific in November 1999 and peaked as a tropical depression with maximum sustained winds of 35 mph (55 km/h). It made landfall near Lang Suan, Thailand. The system was tracked for 6 days.
Track data
Download CSV| Time UTC | Position | Strength | Wind | Pressure |
|---|---|---|---|---|
| 1999-11-29 12:00 | 10.5°N 117.5°E | TD | 15 mph / 30 km/h | — |
| 1999-11-29 18:00 | 10.8°N 116.5°E | TD | 15 mph / 30 km/h | — |
| 1999-11-30 00:00 | 11.3°N 115.1°E | TD | 15 mph / 30 km/h | — |
| 1999-11-30 06:00 | 11.7°N 113.8°E | TD | 25 mph / 35 km/h | — |
| 1999-11-30 12:00 | 11.7°N 112.8°E | TD | 25 mph / 35 km/h | — |
| 1999-11-30 18:00 | 11.5°N 112.0°E | TD | 25 mph / 35 km/h | — |
| 1999-12-01 00:00 | 11.2°N 111.2°E | TD | 35 mph / 55 km/h | — |
| 1999-12-01 06:00 | 10.7°N 110.5°E | TD | 35 mph / 55 km/h | — |
Show all 24 points
| 1999-12-01 12:00 | 9.8°N 109.7°E | TD | 35 mph / 55 km/h | — |
| 1999-12-01 18:00 | 8.5°N 108.9°E | TD | 30 mph / 45 km/h | — |
| 1999-12-02 00:00 | 7.3°N 108.0°E | TD | 30 mph / 45 km/h | — |
| 1999-12-02 06:00 | 6.7°N 107.0°E | TD | 30 mph / 45 km/h | — |
| 1999-12-02 12:00 | 6.8°N 106.0°E | TD | 30 mph / 45 km/h | — |
| 1999-12-02 18:00 | 7.0°N 105.2°E | TD | 30 mph / 45 km/h | — |
| 1999-12-03 00:00 | 7.2°N 104.6°E | TD | 35 mph / 55 km/h | — |
| 1999-12-03 06:00 | 7.4°N 103.9°E | TD | 35 mph / 55 km/h | — |
| 1999-12-03 12:00 | 7.8°N 102.8°E | TD | 30 mph / 45 km/h | — |
| 1999-12-03 18:00 | 8.2°N 101.5°E | TD | 30 mph / 45 km/h | — |
| 1999-12-04 00:00 | 8.8°N 100.5°E | TD | 30 mph / 45 km/h | — |
| 1999-12-04 06:00 | 9.6°N 99.7°E | TD | 30 mph / 45 km/h | — |
| 1999-12-04 12:00 | 9.8°N 99.4°E | TD | 30 mph / 45 km/h | — |
| 1999-12-04 18:00 | 10.1°N 99.1°E | TD | 30 mph / 45 km/h | — |
| 1999-12-05 00:00 | 10.8°N 98.3°E | TD | 25 mph / 35 km/h | — |
| 1999-12-05 06:00 | 11.9°N 97.1°E | TD | 25 mph / 35 km/h | — |
Tropical Depression 31W 1999 FAQ
Did Tropical Depression 31W 1999 make landfall?
Yes. 31W made landfall near Lang Suan, Thailand on Dec 4 1999, with sustained winds of 30 mph (45 km/h) at the first landfall.
How strong did 31W get in 1999?
31W peaked as a tropical depression with maximum sustained winds of 35 mph (55 km/h).
When did 31W form and dissipate?
31W was first tracked on Nov 29 1999 and last tracked on Dec 5 1999, about 6 days in all.