Wave Glider “Aʻa” And Hurricane Iselle

Wave Glider “Aʻa” And Hurricane Iselle

Track the latest “Aʻa” wave glider mission from Liquid Robotics, Inc. in near real-time as it measures wave heights in Hawaiʻi during Hurricane Iselle. NOAA’s Central Pacific Hurricane Center (CPHC) predicts that Iselle will reach Hawaiʻi Island by Thursday afternoon (August 7). Heavy rains, high surf, and damaging winds are expected. Tropical storm conditions are expected to spread to Maui County Thursday night and to Oʻahu on Friday.

Starting off the leeward (western) coast of Hawaiʻi Island on July 16, this unmanned ocean robot is transmitting measurements at the ocean’s surface. Every half hour it records wave height, wave direction, and wave period. It is currently (Aug. 6) located 30 miles (48 km) offshore to the northeast of Hilo on the windward (eastern) coast of Hawaiʻi Island.

You can follow Aʻa using the “ocean gliders” category in PacIOOS Voyager and selecting the Aʻa2 glider mission. Use this to plot or animate the glider’s motion over time. Click on a location to see its wave measurements. Other Voyager overlays of interest during Iselle include GOES satellite cloud imagery, Doppler radar, wind forecasts, rain and stream gauges, and wave buoys.

Screenshot of wave glider “Aʻa” mission 2 in Voyager (click here for larger image):

Voyager Screenshot

Please visit the CPHC for advisories and safety information related to Iselle and Hurricane Julio.

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Did you know?

PacIOOS is the first regional association that was certified as a Regional Information Coordination Entity (RICE) by the U.S. Integrated Ocean Observing System (IOOS). Certification provides NOAA and its interagency partners a means to verify that a regional association’s organizational and operational practices, including data management, meet recognized and established standards set by NOAA.