New buoys now streaming weather conditions from Port Valdez

Photo of new buoy deployed in 2019.

Two new buoys are now in place and broadcasting weather conditions in the vicinity of the Valdez Marine Terminal.

Photo of new buoy deployed in 2019.

The buoys collect weather data such as temperature, wind speed, wind direction, and barometric pressure, as well as oceanographic information like surface current direction and speed, wave heights, and water temperature. This data will help improve understanding of the meteorological and physical oceanographic environment in Port Valdez.

Valdez Marine Terminal – current weather conditions

Duck Flats/Valdez Harbor – current weather conditions

Weather conditions throughout Prince William Sound

Terminal buoy result of cooperative partnership

The buoy closest to the terminal (pictured above) is the result of a partnership between the Council, the Prince William Sound Science Center, Alyeska Pipeline Service Company, the City of Valdez, and Valdez Fisheries Development Association.

“Partnerships like these result in collaborative science, which is the best base for providing answers to challenging questions related to planning an effective oil spill response,” said Donna Schantz, Executive Director for the Council. “The Council has long advocated for this kind of data collection at the terminal and believe the information generated will contribute to best practices for prevention and response.”

The partnership is a result of an agreement reached between the Council, the City of Valdez, Prince William Sound Aquaculture Corporation, Valdez Fisheries Development Association, Alyeska Pipeline Service Company, and the Alaska Department of Environmental Conservation regarding protections in the Valdez Marine Terminal contingency plan for two nearby areas that are particularly sensitive to spilled oil, the Solomon Gulch fish hatchery and a salt marsh known as the Valdez Duck Flats.

In 1994, the tanker Eastern Lion spilled 8,400 gallons of North Slope crude oil into Port Valdez. Oil reached the Duck Flats and hatchery before protective boom was in place.

After that spill, changes were made to the Valdez Marine Terminal contingency plan to ensure that protections were deployed quickly. A rapid-decision tool, called a “matrix,” was created to help responders assess when to deploy protective boom to the Solomon Gulch Hatchery and Valdez Duck Flats during the critical early hours of a response. In 2017, the matrix was modified, and the Council, the City of Valdez, Valdez Fisheries Development Association, and Prince William Sound Aquaculture Corporation appealed that decision.

Earlier this year, the parties agreed to stay the appeal in lieu of a collaborative workgroup process. The workgroup’s goal is to reach consensus on how to ensure the protection of the Solomon Gulch Hatchery and Valdez Duck Flats. The buoys will provide scientific data to help the workgroup better understand how spilled oil will move in Port Valdez. This knowledge will help determine the timing for deploying protective boom.

Second buoy monitors Valdez Duck Flats

A second buoy has been deployed near the Valdez Duck Flats to monitor conditions in that location. The second buoy has been made possible by partnerships with Prince William Sound Science Center, the City of Valdez, and Valdez Fisheries Development Association.

Map

The map shows the locations of the two sensitive areas of concern, as well as the location of the new buoys. The hatchery is a little over two miles from the terminal, and the flats are approximately four miles.

Thirty years later, Council continues mission to combat complacency

Donna Schantz

By Donna Schantz
Executive Director

On March 24, 1989, the Exxon Valdez ran aground on Bligh Reef and spilled an estimated 11 million gallons of crude oil. Congress determined that complacency on the part of industry and government was a contributing factor in the accident and they mandated citizen involvement in the oversight of crude oil terminals and tankers. For the past 30 years, the Council has filled this role for Prince William Sound and its downstream communities, advocating for environmental safeguards to prevent oil spills and a strong response system should prevention measures fail.

Improvements since 1989

Measures developed with Council participation since 1989 represent vast improvements in oil spill prevention and response. We have double-hull tankers, high-performance escort tugs, a much-improved workforce, state-of-the art equipment for recovering oil, and a fleet of over 400 trained fishing vessels and crews ready to respond promptly to an oil spill. We also have improved communications between the oil industry and the state and federal governments, and more oil spill clean-up equipment than probably any other U.S. port. This has taken considerable effort on the part of industry, regulators, the Council, and other members of the public.

Some recent examples of improvements include new purpose-built tugs and oil spill response barges that came on line with the marine services transition in 2018, and new technology that allows pipelines at the Valdez Marine Terminal to be internally inspected, which had not been done since start-up over 40 years ago.

Read moreThirty years later, Council continues mission to combat complacency

New buoys will collect data about winds and currents in Port Valdez

Photo of the Valdez Duck Flats.
Photo of VMT Buoy in Valdez harbor
Update June 2019: This new buoy, pictured here in Valdez Harbor before being moved to its monitoring location near the terminal. The buoy is now streaming data, which can be accessed through our weather tracking page

In February, the Council reached an agreement with Alyeska that will improve knowledge about weather conditions in Port Valdez. Alyeska has agreed to allow a buoy to be installed in front of the Valdez Marine Terminal to measure winds and surface currents. A second buoy will collect data from a nearby salt marsh.

Agreement reached on appeal to amendment of spill contingency plan

The agreement is the outcome of an appeal to a 2017 amendment to the oil spill contingency plan for the terminal.

In that 2017 amendment, Alyeska replaced a tool used by responders in deciding whether to protect the salt marsh known as the Valdez Duck Flats, and the Solomon Gulch Fish Hatchery in case of a spill from the terminal. The Council, the City of Valdez, the Valdez Fisheries Development Association, and the Prince William Sound Aquaculture Corporation appealed the 2017 change. They were concerned the new tool would not adequately protect these two environmentally sensitive areas.

Read moreNew buoys will collect data about winds and currents in Port Valdez

New study analyzes weather at Hinchinbrook Entrance

A recent Council-sponsored report found that wind and waves at Hinchinbrook Entrance may be under reported as observed by the Seal Rocks weather buoy.

Researchers from Tetra Tech analyzed wind and wave data to better define weather conditions at the Entrance, as well as how these conditions might affect rescue operations by the escort tugs. To do this, researchers looked at the frequency and duration of weather events when the Entrance was closed to laden tankers.

Average closure conditions

A "wind rose" graphic that shows the speed and direction of wind as recorded at Seal Rocks.
This “wind rose” graphic shows the speed and direction of wind as recorded at Seal Rocks.

Wave height alone was found to be the cause of most of the closures, occurring 10 to 26 times a year on average. Average wave height during closures was over 17 feet and the highest recorded wave was over 26 feet. Wind speed closes the Entrance one to three times annually, as do closures for both wind and waves. Winds average just over 54 miles per hour during closure and the highest recorded wind speed was over 61 miles per hour.

Closures for winds typically last less than two hours, while waves close the Entrance for an average of just over six hours.

Seal Rocks buoy’s data may not be precise

Read moreNew study analyzes weather at Hinchinbrook Entrance