The flights gathered dropsonde data from a Category 2 storm, helping forecasters improve weather models and warn Hawaiian residents earlier, NOAA said.
On Monday, the National Oceanic and Atmospheric Administration Hurricane Hunters continued tracking Hurricane Lowell, a Category 2 storm with 110 mph winds, to improve life-saving forecasts for Hawaii.
Operating at 45,000 feet, the team deploys the Gulfstream IV-SP, or G-IV, jet to release dropsondes that record temperature, wind speed, and air pressure data for weather modeling.
While coordinating with the Air Force Reserve's 53rd Weather Reconnaissance Squadron, the NOAA team operates separate missions to gather storm observations, though both teams communicate regularly.
Lowell is tracking north-northeast toward Kaua, prompting the Emergency Management Agency to warn residents of heavy rain, flash floods, and potential Tornadoes across the region.
Residents now know days in advance whether a hurricane will impact their communities, a major shift from the 12 hours of notice available when Hurricane Dot made landfall in 1959.