Tropical Cyclone 01W / Invest 99B
Friday, May 24, 2024

Current Snapshot

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By PDC’s Senior Weather
Specialist Glenn James

The Pacific Disaster Center’s (PDC Global) Friday, May 24, 2024, Tropical Cyclone Activity Report…for the Pacific Ocean, the Indian Ocean, and adjacent Seas

Current Tropical Cyclones:

Tropical Cyclone 01W…is located approximately 228 NM southeast of Manila, Philippines


Northeast Pacific Ocean:

Tropical cyclone formation is not expected during the next 7-days.

Central North Pacific:

The central North Pacific hurricane season officially ended on November 30, 2023. Routine issuance of the Tropical Weather Outlook will resume on June 1, 2024. During the off-season, Special Tropical Weather Outlooks will be issued as conditions warrant.

The central Pacific basin had a near-normal season with four tropical systems traversing the basin.

Hurricane Dora, a category-4 storm, passed south of Hawaii in early August, marking the first major hurricane in the central Pacific basin since 2020. The strong gradient between a high pressure system to the north and Dora to the south was a contributing factor to the wind-driven, fast-moving wildfires in Hawaii.

Western Pacific, Indian Ocean and adjacent Seas

Western Pacific Ocean

Tropical Cyclone 01W

According to the JTWC Warning number 2, sustained winds were running 30 knots…with gusts to near 40 knots.

Bay of Bengal

Invest 99B

>>> There’s an area of disturbed weather being referred to as Invest 99B…which is located approximately 327 NM south-southeast of Kolkata, India

Animated enhanced infrared satellite imagery shows a broad, disorganized system with flaring, intense convective bursts. A microwave image depicts
fragmented deep convective banding along the southern periphery of a
broad low-level circulation, with no convective banding over the
northern semicircle. Several buoy observations near the center indicate weak 5-10 knot winds; additional observations within the deep convective banding show 20-25 knot winds.

Environmental analysis indicates marginally favorable conditions, with robust equatorward outflow, weak poleward outflow, low to moderate (15-20 knot) vertical wind shear and warm sea surface temperatures.

Global models indicate a northward track toward Bangladesh with steady
intensification; however, GFS is more aggressive on development.

Maximum sustained surface winds are estimated at 20 to 25 knots.

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