Current Snapshot

The Pacific Disaster Center’s (PDC Global) Monday, November 25, 2024, 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

Central Pacific Ocean: There are no Tropical Cyclones

2024 Hurricane Season Summary for the Central Pacific Basin

The 2024 hurricane season featured two tropical cyclones in the Central Pacific Hurricane Center (CPHC) area of responsibility. Four to five tropical cyclones occur during an average year. Hurricane season runs from June 1 to November 30. The central Pacific basin extends from 140°W to the International Date Line.

Hurricane Hone was the first tropical cyclone of the season in the central Pacific, developing about 1,000 miles east-southeast of the Big Island on August 22. This was the first tropical cyclone to form in the central Pacific since Tropical Storm Ema in October 2019. Hone continued to strengthen as it approached the state, eventually becoming a hurricane late on August 24 just over 50 miles south-southeast of Ka Lae, the southern tip of the Big Island. Hone weakened to a Tropical Depression on August 29, then strengthened to a Tropical Storm again from August 30-September 1. During this time a Tropical Storm Watch was issued for Kure and Midway Atolls and portions of the Papahānaumokuākea Marine National Monument from Lisianski Island to Pearl and Hermes Atoll. Hone became extratropical just after crossing the International Date Line on September 1.

Hurricane Gilma moved into the basin from the east on August 27 and rapidly weakened before dissipating east of Hawaiʻi.

Impacts to the State of Hawaiʻi: Heavy rain from Hurricane Hone caused flash flooding that damaged homes and closed several roads across Hawaii County on August 25, leading to several million dollars in damage. Tropical storm force winds brought down trees and utility poles on the Big Island, with reports of damage on Maui and Oahu as well.

Western Pacific, Indian Ocean, and adjacent Seas:

>>> There’s an area of disturbed weather being referred to as Invest 99B, which is located approximately 223 NM east-southeast of Colombo, Sri Lanka

Animated enhanced infrared satellite imagery (eir) depicts a developing llcc with persistent convection embedded within a monsoon trough. A microwave image depicts fragmented, formative banding along the western semi-circle. Another pass indicates 25 knots winds along the western and southern portion of the circulation.

Environmental analysis indicates a marginally favorable environment for further development with good upper-level divergence, warm sea surface
temperatures, and moderately symmetric vorticity offset by moderate to high (20-25 knot) easterly vertical wind shear.

Global deterministic models are in good agreement that Invest 99B will continue to consolidate over the next 24-48 hrs.

Maximum sustained surface winds are estimated at 28 to 33 knots.

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

>>> There’s a second area of disturbed weather being referred to as Invest 96S, which is located approximately 197 NM northwest of Cocos Island.

Animated enhanced infrared satellite imagery (eir) depicts a broad area of disorganized persistent convection. Another pass reveals an asymmetric wind field with 10-20 knot winds.

Environmental analysis reveals an unfavorable environment for further development with moderate to high (20-25 knot) northerly vertical wind shear, despite warm sea surface temperatures and an improving vorticity signature.

Global deterministic models are in good agreement that Invest 96S will persist and drift poleward in the South Indian Ocean over the next 24-48 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 remains low.