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Best track · IBTrACS
ArchivedPeak tropical storm

Tropical Storm 1S (2025)

Track & history

Peak wind
40 mph / 65 km/h
Min pressure
1002 mb
Dates
–
Landfall
None

Storm history

This system formed in the Southern Hemisphere in July 2025 and peaked as a tropical storm with maximum sustained winds of 40 mph (65 km/h) and a minimum pressure of 1002 mb. It did not make landfall. The system was tracked for 3 days.

Track data

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Data source: NOAA NCEI IBTrACS v04r01. IBTrACS v04r01 use constraints.

Gahtan, Jennifer; Knapp, Kenneth R.; Schreck, Carl J. III; Diamond, Howard J.; Kossin, James P.; Kruk, Michael C. (2024). International Best Track Archive for Climate Stewardship (IBTrACS) Project, Version 4.01. NOAA National Centers for Environmental Information. Cite the subset used and access date. IBTrACS v04r01 dataset DOI.

Time UTCPositionStrengthWindPressure
2025-07-16 18:009.8°S 89.8°ETS40 mph / 65 km/h1003 mb
2025-07-17 00:009.8°S 89.5°ETS40 mph / 65 km/h1003 mb
2025-07-17 06:009.9°S 88.8°ETS40 mph / 65 km/h1003 mb
2025-07-17 12:0010.1°S 88.1°ETS40 mph / 65 km/h1003 mb
2025-07-17 18:0010.3°S 87.6°ETS40 mph / 65 km/h1003 mb
2025-07-18 00:0011.2°S 87.0°ETS40 mph / 65 km/h1003 mb
2025-07-18 06:0011.8°S 85.4°ETS40 mph / 65 km/h1002 mb
2025-07-18 12:0012.2°S 84.3°ETS40 mph / 65 km/h1002 mb
Show all 12 points
2025-07-18 18:0012.2°S 82.5°ETD35 mph / 55 km/h1003 mb
2025-07-19 00:0012.2°S 81.8°ETD35 mph / 55 km/h1003 mb
2025-07-19 06:0013.0°S 81.5°ETD35 mph / 55 km/h1005 mb
2025-07-19 12:0014.2°S 81.8°ETD35 mph / 55 km/h1004 mb

Tropical Storm 1S 2025 FAQ

Did Tropical Storm 1S 2025 make landfall?

No. The best track does not record a landfall for 1S; it stayed over water.

How strong did 1S get in 2025?

1S peaked as a tropical storm with maximum sustained winds of 40 mph (65 km/h) and a minimum central pressure of 1002 mb.

When did 1S form and dissipate?

1S was first tracked on Jul 16 2025 and last tracked on Jul 19 2025, about 3 days in all.