Tropical Storm Lola Rapidly Intensifies to Equivalent of a Major Hurricane

Tropical Cyclone Lola rapidly intensified to the equivalent of a major hurricane over the South Pacific Ocean northeast of Vanuatu on Monday morning. At 11:00 a.m. EDT on Monday the center of Tropical Cyclone Lola was located at latitude 13.7°S and longitude 169.6°E which put it about 120 miles (195 km) east of Sola, Vanuatu. Lola was moving toward the south-southeast at 6 m.p.h. (10 km/h). The maximum sustained wind speed was 130 m.p.h. (210 km/h) and there were wind gusts to 160 m.p.h. (260 km/h). The minimum surface pressure was 948 mb.

Tropical Cyclone Lola rapidly intensified to the equivalent of a hurricane/typhoon on Monday morning. A circular eye with a diameter of 35 miles (55 km) was at the center of Lola’s circulation. The eye was surrounded by a ring of thunderstorms and the strongest winds were occurring in that ring of storms. Bands of showers and thunderstorms were revolving around the core of Tropical Cyclone Lola. Storms near the core generated strong upper level divergence that large quantities of pumped mass away from the tropical cyclone. The removal of large amounts of mass caused the surface pressure to decrease rapidly.

Winds to hurricane/typhoon force extended out 30 miles (50 km) from the center of Tropical Cyclone Lola. Winds to tropical storm force extended out 160 miles (260 km) from the center of circulation. The Hurricane Intensity Index (HII) for Tropical Cyclone Lola was 25.1. The Hurricane Size Index (HSI) was 10.6 and the Hurricane Wind Intensiy Size Index (HWISI) was 35.7. Tropical Cyclone Lola was similar in size and intensity to Hurricane Harvey when Harvey hit Texas in 2017.

Tropical Cyclone Lola will move through an environment favorable for intensification during the next 12 hours. Lola will move over water where the Sea Surface Temperatures are near 28°C. It will move through a region where the upper level winds are weak and there will be little vertical wind shear. Tropical Cyclone Lola could continue to intensify during the next 12 hours. An upper level trough over the Coral Sea will approach Lola from the west later today. The upper level trough will produce westerly winds that will blow toward the top of Lola’s circulation. Those winds will cause the vertical wind shear to increase. Tropical Cyclone Lola could start to weaken when the wind shear increases.

Tropical Cyclone Lola will move around the northwestern part of a high pressure system centered northeast of New Zealand. The high pressure system will steer Lola toward the southwest during the next 24 hours. On its anticipated track, Tropical Cyclone Lola will approach Vanuatu during the next 24hours. Lola will bring strong, gusty winds and locally heavy rain to Espiritu Santo, Maewo, Ambae, Pentecost, Ambrym and Malekula. Tropical Cyclone Lola will be capable of causing regional major damage. Heavy rain is likely to cause flash floods in some locations. Tropical Cyclone Lola could cause a storm surge of up to ten feet (three meters) in some places.