Critical Airspace Warning: Extreme Radiation Hazard at Kwajalein Atoll #image_title A Notice to Airmen (NOTAM) has been issued for Kwajalein Atoll in the Marshall Islands, warning of a severe radiation hazard. The airspace north of the airport’s runway should be avoided at all costs, as it poses significant risks to life. In order to mitigate these dangers, all flights are directed to utilize southern approach and departure routes instead. This information has been provided by the International Civil Aviation Organization.