The government cuts key data used in hurricane forecasting, and experts sound an alarm
Weather experts are warning that hurricane forecasts will be severely hampered by the upcoming cutoff of key data from US Department of Defense satellites–the latest Trump administration move with potential consequences for the quality of forecasting.
The National Oceanic and Atmospheric Administration said it would discontinue the ingest, processing, and distribution of data collected by three weather satellites that the agency jointly runs with the Defense Department. The data is used by scientists, researchers, and forecasters, including at the National Hurricane Center. It wasn't immediately clear why the government planned to cut off the Defense Meteorological Satellite Program's microwave data by Monday. The Defense Department referred questions to the Air Force, which referred them to the Navy, which did not immediately provide comment. NOAA did not immediately respond to a message.
Unlike traditional weather satellites, the microwave data helps peer under a regular image of a hurricane or a tropical cyclone to see what is going on inside the storm, and it is especially helpful at night. The news is especially noteworthy during the ongoing hurricane season and as lesser storms have become more frequent, deadly, and costly as climate change is worsened by the burning of fossil fuels. Microwave imagery allows researchers and forecasters to see the center of the storm. Experts say that can help in detecting the rapid intensification of storms and in more accurately plotting the likely path of dangerous weather.
'If a hurricane, let's say, is approaching the Gulf Coast, it's a day away from making landfall, it's nighttime,' said Union of Concerned Scientists science fellow Marc Alessi. 'We will no longer be able to say, 'OK, this storm is definitely undergoing rapid intensification, we need to update our forecasts to reflect that.'
Other microwave data will be available, but only roughly fifty percent as much, hurricane specialist Michael Lowry said in a blog post. He said that greatly increases the odds that forecasters will miss rapid intensification, underestimate intensity, or misplace the storm. 'That will severely impede and degrade hurricane forecasts for this season and beyond, affecting tens of millions of Americans who live along its hurricane-prone shorelines,' he said.
University of Miami hurricane researcher Brian McNoldy called the loss of data 'alarmingly bad news' in a post on Bluesky. 'Microwave data are already relatively sparse, so any loss–even gradual as satellites or instruments fail–is a big deal, but to abruptly end three active, functioning satellites is insanity.'
NOAA and its National Weather Service office have been the target of several cuts and changes in President Donald Trump's second term. The Department of Government Efficiency gutted the agency's workforce, local field offices, and funding. Already, hurricane forecasts were anticipated to be less accurate this year because weather balloon launches have been curtailed because of the lack of staffing.
'What happened this week is another attempt by the Trump administration to sabotage our weather and climate infrastructure,' Alessi said.
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