Current Snapshot

The Pacific Disaster Center’s (PDC Global) Tuesday, March 31, 2026, Tropical Cyclone Activity Report…for the Pacific Ocean, the Indian Ocean, and adjacent Seas

Current Tropical Cyclones:

There are no tropical cyclones 

Northeast Pacific Ocean: There are no Tropical Cyclones

The last regularly scheduled Tropical Cyclone Activity Report of the 2025 eastern North Pacific Hurricane Season has been issued. Routine issuance of this section of the PDC product will resume on May 15, 2026. During the off-season, Special Tropical Weather Outlooks will be issued as conditions warrant by the NHC.

Central Pacific Ocean: There are no Tropical Cyclones

The 2025 central North Pacific hurricane season has ended. As such, the final routine Tropical Cyclone Activity Report for the 2025 season has been issued. Routine issuance of this section of the PDC product will resume on June 1, 2026. During the off-season, Special Tropical Weather Outlooks will be issued as conditions warrant by the CPHC.

Western Pacific, Indian Ocean, and adjacent Seas: There are no Tropical Cyclones

South Indian Ocean

>>> There’s an area of disturbed weather being referred to as Invest 99S, which is located approximately 213 NM east-southeast of Diego Garcia.

Animated enhanced infrared imagery depicts a developing low level circulation center (llcc) partially obscured by flaring convection. A 311629z metop-b ascat pass revealed 15-20 knot winds within the eastern semicircle of the system.

Environmental analysis reveals favorable conditions for development with low vertical wind shear (10-15 kts), warm sea surface temperatures (29 to 30 c), and moderate poleward outflow.

Deterministic and ensemble models are in good agreement of 99S further developing and taking a south-southwestward track over the next 48 hours.

Maximum sustained surface winds are estimated at 18 to 23 knots.

The potential for the development of a significant tropical cyclone within the next 24 hours is upgraded to medium.