7:30 pm: Olivia slows down; Always on the right track for Big Island, Maui

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Tuesday, September 11, 2018, 7:30 pm: Olivia slows down; Always on the right track for Big Island, Maui

The National Central Pacific Hurricane Center reported that Tropical Storm Olivia has slowed down, but continues to move toward the Big Island and Maui County.

Olivia is 90 miles NNE from Hilo.

Olivia continues to approach the state of the east. Strong winds, heavy rains and strong tides will impact the islands tonight until Thursday.

The winds are already increasing over parts of the Big Island and Maui County before Olivia, and the winds will be increasing relative to O'ahu tonight.

Tropical storm winds and larger wind gusts are expected to reach parts of the Big Island and Maui during the night, and O'ahu early Wednesday morning as Olivia gets closer to the state.

Kaua'i will see more and more winds in the evening, with tropical storm force winds and more general gusts of wind arriving Wednesday.

The mountainous terrain of the islands will produce localized areas of greatly improved winds well before Olivia, which may cause damage prior to the onset of general tropical storm force winds.

In addition, bursts of hurricane force winds are possible with Olivia and with stronger winds, far from the center of tropical cyclones.

Forecasters say that it's important not to focus on the exact trajectory of Olivia's forecast and intensity. Whatever route Olivia takes to approach the islands, one can expect significant impacts outside the center.

The showers will continue to increase tonight, with the possibility that flood rains will increase rapidly at night and remain a significant threat until Thursday night.

Expect total rainfall of 5 to 10 inches, with isolated areas up to 15 inches. Much of this rainfall will be concentrated on the windward areas of the islands, particularly the large island across O'ahu. However, floods still pose a significant threat to all areas, especially when Olivia moves
the islands.

The waves and waves generated by Olivia will continue to grow along the eastward shorelines, reaching damaging levels overnight and Wednesday.

Surf heights along the eastern shores are expected to reach 12 to 20 feet on the Big Island, Maui, Molokai and O'ahu.

Along the eastern shores of Kaua'i and Lana'i, expect the surf to reach 10 to 14 feet.

This backlash is expected to lead to significant beach erosion and overflowing on vulnerable coastal roads, especially at high tides.

19h

The Central Pacific Hurricane Center reports that from 17hTropical Storm Olivia is located 100 miles northeast of Hilo, with sustained winds of 50 mph, moving west at 15 mph. The National Weather Service forecasts strong winds throughout the evening and during the night, especially in the northern half of Hawai'i Island. Heavy rainfall and flash floods are also possible.

Due to the tropical storm warning for the island of Hawaii, the following reviews are in effect:

• A high probability of tropical storm force winds is expected at all times.
• High surf warning for the eastern shores of the island of Hawaii, from Cape Kumukahi to Upolu Point.
• Flash Flood Watch for the island of Hawaii. Do not cross the rapidly flowing water in your vehicle or on foot. Turn around, do not drown!

5pm: Olivia Center Approaching Big Island, Maui

The NWS Central Pacific Hurricane Center in Honolulu has released an update on Tropical Storm Olivia.

At 1700 hours, the center of tropical storm Olivia was located near latitude 20.9 north and longitude 154.2 west, about 100 miles northeast of Hilo.

Olivia travels to the west near 15 mph. A general WSW move with a slower pace is expected tonight as Olivia's center approaches Big Island and Maui.

After passing Olivia beyond the islands, a slightly faster WSW movement should resume and continue over the next few days.

Maximum sustained winds are near 50 mph with higher gusts.

A gradual weakening is expected over the next 48 hours, but Olivia is expected to remain a tropical storm over the main Hawaiian islands.

Tropical storm force winds extend up to 105 miles, mostly north of the center.

DANGERS AFFECTING LAND

WIND: Tropical storm conditions are expected in parts of Maui County and the Big Island from tonight. Tropical storm conditions are expected on Oahu from tonight. Tropical storm conditions are expected in Kauai County starting Wednesday. Remember that gusts of wind can be much stronger near higher ground, especially through the spaces between the mountains and where the winds blow downstream.

RAINFALL: Showers will continue to increase in parts of the main Hawaiian Islands this evening and Wednesday. Olivia is expected to produce total rainfall accumulations of 5 to 10 inches in some areas, with maximum isolated amounts of 15 inches, especially on higher ground. This rain can produce deadly flash floods.

SURF: The big waves generated by Olivia will have an impact on the main Hawaiian islands over the next few days. This will result in dangerously high and potentially damaging waves, mainly along the exposed eastern shores.

14h: Winds will increase in the northern half of Big Island

The Central Pacific Hurricane Center reports that from p.m.Tropical Storm Olivia is located 135 miles northeast of Hilo, with sustained winds of 55 mph and displacement of WSW at 21 mph. The National Weather Service is forecasting increased winds throughout the afternoon and night, particularly in the northern half of Hawaii.

The following notices are in effect:

• A tropical storm warning is issued when there is a high probability that tropical storm force winds are expected at any time within the next 36 hours.
• High level warning for the east coast of the island of Hawaii, from Cape Kumukahi to Upolu Point.
• Flash Flood Watch for Hawai'i Island. Do not cross fast water in your vehicle or on foot. Turn around, do not drown!

The National Center for Central Pacific Hurricane Forecast reported that winds are increasing over Big Island and Maui County as Tropical Storm Olivia approaches rapidly.

At 1400, the center of tropical storm Olivia was located near latitude 21.2 north and longitude 153.8 west, 135 miles NE of Hilo.

Olivia travels to the west-southwest near 21 mph. This general motion will then continue for the next few days. On the forecast trail, Olivia will cross the main Hawaiian islands tonight and Wednesday.

Maximum sustained winds are near 55 mph, with higher gusts. A gradual weakening is expected over the next 48 hours, but Olivia is expected to remain a tropical storm over the main Hawaiian islands.

The tropical storm force winds extend up to 90 miles from the center.

DANGERS AFFECTING LAND

WIND: Tropical storm conditions are expected in parts of Maui County and the Big Island later in the day or tonight. Tropical storm conditions are expected on Oahu from tonight. Tropical storms are possible on Kauai County from late this evening or Wednesday morning. Wind gusts can be much stronger near higher ground, especially in the spaces between the mountains and where the winds blow downstream.

RAINFALL: Showers will continue to increase in parts of the main Hawaiian Islands in the late afternoon and evening before tropical storm Olivia. Olivia is expected to produce total rainfall accumulations of 5 to 10 inches in some areas, with maximum isolated amounts of 15 inches, especially on higher ground. This rain can produce deadly flash floods.

SURF: The big waves generated by Olivia will have an impact on the main Hawaiian islands over the next few days. This will result in dangerously high and potentially damaging waves, mainly along the exposed eastern shores.

11:00 am: Olivia gets closer to the Hawaiian Islands

The Honolulu Center hemorrhage in the Pacific Northwest reported that tropical storm Olivia is accelerating and is approaching Hawai'i.

Increasing winds and showers are expected this afternoon.

A tropical storm warning is in effect for Hawai'i County, Maui County and now, Kaua'i and Ni'ihau.

A tropical storm warning means that tropical storm conditions are expected somewhere in the warning zone within 36 hours.

At 11 am, the center of tropical storm Olivia was located near latitude 21.6 north and longitude 152.3 west about 275 miles east of Kahului, Maui.

Olivia travels to the west near 17 mph. A slight turn toward the west-southwest is expected later today. This general motion will then continue for the next few days. On the forecasts
Track, Olivia will move through the main Hawaiian Islands tonight and Wednesday.

Maximum sustained winds are near 60 mph, with higher gusts. Some weakening is expected in the next 48 hours. A gradual weakening is expected over the next 48 hours, but Olivia is expected to remain a tropical storm over the main Hawaiian islands.

The tropical storm force winds extend up to 90 miles from the center.

DANGERS AFFECTING LAND

WIND: Winds will increase in parts of the main Hawaiian islands this afternoon, as Olivia approaches. Wind gusts can be much stronger near higher ground, especially in the spaces between the mountains and where the winds blow downstream. Tropical storm conditions are expected in parts of Big Island and Maui County from this day or night. Tropical storm conditions are expected on O'ahu from tonight. Tropical storm conditions are possible in Kauai County from late tonight or Wednesday
Morning.

RAINFALL: Showers will continue to increase in some parts of the main Hawaiian Islands before Tropical Storm Olivia. Olivia is expected to produce total rainfall accumulations of 5 to 10 inches in some areas, with maximum isolated amounts of 15 inches, especially on higher ground. This rain can produce deadly flash floods.

SURF: The big waves generated by Olivia will have an impact on the main Hawaiian islands over the next few days. This will result in dangerously high and potentially damaging waves, mainly along the exposed eastern shores.

8:00 am: Important impacts expected from Olivia

A tropical storm warning is in effect for Hawai'i County, Maui County and O'ahu County.

Tropical storm Olivia will hit Hawai'i from the northeast on an unusual path that will cause floods and landslides Tuesday night and Wednesday.

Rainfall will be much smaller on the Big Island than Lane's, Accuweather reported today.

Dan Kottlowski, expert of Hurricane AccuWeather, pointed out that since Olivia is moving much faster than Lane, the rainfall of the Big Island will no longer be able to reach the same historical levels from late August.

However, Maui could receive Olivia a quantity of rain equivalent to that of Lane and Moloka'i and O'ahu could exceed the rainfall received by the islands during the meeting in late August.

"Rain amounts of 8 to 12 inches are possible, especially on the heights of Maui and the Big Island, with … 20 inches possible in the mountains," said Steve Travis, Meteorologist at AccuWeather.

September 11 marks the anniversary of Hurricane Iniki's strike against Hawai'i in 1992.

At 8 am, the center of tropical storm Olivia was located near latitude 21.6 north, longitude 151.9 west and 240 miles at Kahului's ENE, in Maui.

Olivia is still moving to the west near 10 mph. A turning point to the WSW is expected later today, with a slight increase in the speed of advancement. This general motion will then continue for the next few days. On the forecast trail, Olivia's center will move the main Hawaiian islands late tonight Wednesday.

Maximum sustained winds are near 65 mph, with higher gusts. A gradual weakening is expected over the next 48 hours, but Olivia is expected to remain a tropical storm crossing the islands.

The tropical storm force winds extend up to 90 miles from the center.

5h: Important impacts expected from Olivia

The Pacific Hurricane Center National Weather Center, Honolulu Tropical storm Olivia reported that Tropical Storm Olivia weakened during the night, with winds of 65 mph.

A tropical storm warning is in effect for Hawai'i County, Maui County and O'ahu County. A tropical storm warning means that tropical storm conditions are expected somewhere in the warning zone within 36 hours.

A tropical storm watch is in effect for Kaua'i and Ni'ihau. A tropical storm watch means that tropical storm conditions are possible in the surveillance zone within 48 hours.

At 5 am, the center of tropical storm Olivia was located near latitude 21.9 north and longitude 151.1 west, about 300 miles ENE of Hilo and 355 miles ENE of Kahului, Maui.

Olivia travels to the west near 10 mph. A turning point to the WSW is expected later today, with a slight increase in the speed of advancement. This general motion will then continue for the next few days. On the forecast trail, Olivia's center will be moving late on parts of the main Hawaiian Islands
tonight in wednesday.

Maximum sustained winds are near 65 mph, with higher gusts. A gradual weakening is expected over the next 48 hours, but Olivia is expected to remain a tropical storm crossing the islands.

The tropical storm force winds extend up to 90 miles from the center.

DANGERS AFFECTING LAND

WIND: Tropical storm conditions are expected in Maui County and the Big Island starting tonight. Tropical storms are expected on Oahu from Wednesday morning. Tropical storm conditions are possible in Kauai County from Wednesday afternoon or evening.

RAINFALL: It is expected that Olivia will produce total rainfall accumulations of 10 to 15 inches, with maximum isolated amounts of 20 inches possible, especially on higher ground. This rain can produce deadly flash floods.

SURF: The big waves generated by Olivia will have an impact on the main Hawaiian islands over the next few days. This will result in dangerously high and potentially damaging waves, mainly along the exposed eastern shores.

BELOW: HIGHLIGHTS OF THE 17TH LOCAL REGION UPDATE

FORECAST OF LOCAL AREA IN-DPTH: Click Here

Big Island North and East

Maximum wind forecast: 10-20 mph with gusts at 25 mph

Peak flood caused by a storm surge: the potential up to 2 feet above the ground, somewhere in areas prone to overvoltages

Maximum rainfall amounts: 3-6 inches extra, with higher amounts locally

South Big Island

Maximum wind forecast: 10 to 20 mph with gusts to 30 mph

No flood forecast of storm surge

Maximum rainfall: 3 to 6 inches extra, with higher amounts locally

Kona

Maximum wind forecast: 10-15 mph with gusts at 25 mph

No flood forecast of storm surge

Maximum rainfall amounts: about 1 extra inch

Kohala

Maximum wind forecast: 10-20 mph with gusts at 25 mph

No flood forecast of storm surge

Number of maximum rainfall: 1 to 3 additional inches, with higher amounts locally

inside

Maximum wind forecast: 10-15 mph with gusts to 20 mph

Number of maximum rainfall: 1 to 3 additional inches, with higher amounts locally