eVENT Hurricane Tracking Advisory

Hurricane Olivia Information from NHC Advisory 28, 8:00 AM PDT Fri Sep 07, 2018 Olivia is moving toward the west-northwest near 16 mph (26 km/h), and this general motion is forecast to continue through Saturday. A gradual turn toward the west is expected Saturday night or Sunday. Maximum sustained winds have decreased to near 115 mph (185 km/h) with higher gusts. Olivia is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. A slow weakening trend is expected during the next few days.

Intensity Measures Position & Heading U.S. (NHC) Max Sustained Wind 115 mph Position Relative to 1465 miles E of Hilo Speed: (category 3) Land: 1640 miles E of Est. Time & Region: n/a Min Central Pressure: 964 mb Coordinates: 20.1 N, 132.5 W

Trop. Storm Force Est. Max Sustained n/a 140 miles Bearing/Speed: WNW or 290 degrees at 16 mph Winds Extent: Wind Speed:

Forecast Summary ■ The NHC forecast map (below left) and the wind-field map (below right), which is based on the NHC’s forecast track, both show Olivia approaching the Hawaiian Islands over the next five days at it weakens to tropical storm intensity (winds below 74 mph). To illustrate the uncertainty in Olivia’s forecast track, forecast tracks for all current models are shown on the wind-field map (below right) in pale gray. ■ Hurricane-force winds extend outward up to 30 miles (45 km) from the center and tropical-storm-force winds extend outward up to 115 miles (185 km).

Forecast Track for Forecast Wind-field for Hurricane Olivia

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Coastal Watches and Warnings There are no coastal watches or warnings in effect for Hurricane Olivia.

Tropical Storm Wind Speed Probabilities for the Next Five Days The map at lower left shows the Hawaiian Islands' chances of seeing tropical storm force wind speeds (39-73 mph) ranging from 0% to 30%. The map at lower right shows a 0% chance of the Hawaiian Islands seeing hurricane force wind speeds (74+ mph).

Most Likely Arrival Time of Tropical Storm Force Winds and New Potential Most Likely Arrival Time of Tropical Storm Force Winds Five Day Tropical Weather Outlook for the North Central Pacific The graphic below shows the most likely arrival time of tropical storm for For the central North Pacific...between 140W and 180W: winds - the time before or after which the onset of tropical-storm-force winds is equally likely. It also shows probabilities of sustained (1-minute average) The Central Pacific Hurricane Center is issuing advisories on Hurricane surface wind speeds equal to or exceeding 34 kt (39 mph) for the next five Norman, centered about 280 miles northeast of Hilo, . The National days. This graphic is based on the official National Hurricane Center (NHC) Hurricane Center is issuing advisories on Hurricane Olivia, centered about track, intensity, and wind radii forecasts, and on NHC forecast error statistics 1500 miles east of Hilo, Hawaii. Olivia is forecast to move into the Central for those forecast variables during recent years Pacific basin later Saturday.

Elsewhere, no tropical cyclones are expected during the next 5 days.

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