Tropical Cyclone Activity Report – Pacific Ocean / Indian Ocean / Arabian Sea

CURRENT TROPICAL CYCLONES:

Tropical Cyclone 01W (Vongfong) is located approximately 101 NM north of Vigan, Philippines – Final Warning

Tropical Cyclone 01B is located approximately 376 NM east-southeast of Chennai, India

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Tropical Cyclone 01W (Vongfong) – Final Warning Sustained winds of 25 knots, with gusts to 35 knots…as of Warning 19 Here’s what the computer models are showing According to the JTWC, satellite imagery shows a compact system with a tight core of dense convection. Environment parameters remain with a strong poleward outflow channel, nearby warm seas surface temperatures, and low 10-15 knot wind shear. The storm will track northward through the next 24 hours. TS 01W is expected to weaken significantly as it tracks over land despite its favorable upper level environment. TS Vongfong will emerge over a warm sea surface by 24 hours. However, strong wind shear will limit further intensification. What Pagasa is saying about (what they’re calling) TS Ambo Tropical Cyclone 01B Sustained winds of 40 knots, with gusts to 50 knots…as of Warning 2 Here’s what the computer models are showing

Northeast Pacific

There are no active tropical cyclones Tropical cyclone formation is not expected during the next 5 days

Central North Pacific

There are no active tropical cyclones PDC will resume production of these daily reports when the 2020 hurricane season begins again on June 1st. 2019 Hurricane Season Summary for the Central Pacific Basin The 2019 hurricane season featured five tropical cyclones in the Central Pacific Hurricane Center (CPHC) area of responsibility, which is near the season average. Hurricane season runs from June 1 to November 30. The Central Pacific basin extends from 140°W to the International Date Line. Four to five tropical cyclones occur during an average year. Hurricane Erick was the first tropical cyclone of the season in the Central Pacific, moving into the basin from the east on July 30. Erick rapidly intensified to a major hurricane (category 4 on the Saffir-Simpson Hurricane Wind Scale) later that day, then steadily weakened as it passed far south of the main Hawaiian Islands. Tropical Storm Flossie entered the basin on August 3 and approached Hawaii from the east, eventually dissipating before reaching the islands. Tropical Depression 12-E entered the basin on September 4 and strengthened to Tropical Storm Akoni. Akoni was the first tropical cyclone to be named from the Central Pacific list of names since Hurricane Walaka in 2018. Tropical Depression Kiko entered the basin on September 24 and immediately dissipated. Tropical Storm Ema, the second cyclone to be named from the Central Pacific list of names, developed southwest of the main Hawaiian Islands on October 12. Ema dissipated over the southern portion of the Papahanaumokuakea Marine National Monument shortly before crossing between French Frigate Shoals and Maro Reef. Impacts to the State of Hawaii: Swells from Tropical Cyclone Barbara, which dissipated just before crossing into the Central Pacific basin, led to high surf along east facing shores of the state during July 6-9. Remnant moisture from Barbara also led to heavy rain across Maui and Hawaii Counties during July 8-11. Swells generated by Tropical Cyclones Erick and Flossie led to high surf along east and south facing shores during August 1-6. Moisture associated with Erick also contributed to heavy rain over Hawaii County on August 2, and across Kauai County during August 4-5. Hurricane Season Outlook: NOAA’s 2019 hurricane season outlook issued on May 22, 2019, called for five to eight tropical cyclones in the Central Pacific basin, with a 70% chance of above-normal tropical cyclone activity, a 20% chance of near-normal activity, and a 10% chance of below-normal activity. The 2019 season started with an El Niño event that was expected to last through the fall. Instead, steady cooling commenced early in the summer leading to neutral conditions by the heart of the hurricane season.

Western North Pacific

Tropical Cyclone 01W (Vongfong) – Final Warning JTWC textual warning JTWC graphical map Satellite image of this area

South Pacific

There are no active tropical cyclones Satellite image of this area

North Indian Ocean

Tropical Cyclone 01B JTWC textual warning JTWC graphical map Satellite image of this area

South Indian Ocean