
ALT Civil Emergency Message Test – Monday, September 21st at 10:25 am PDT. The Los Angeles County Office of Emergency Management and the National Weather Service will test the Civil Emergency Message (CEM) system on Monday, September 21st at 10:25 am PDT. NOAA Weather Radios will activate with alert tones during this planned emergency exercise. This test ensures mass communication systems function properly for National Preparedness Month initiatives. For emergency preparedness resources or more information about this test, visit ready.lacounty.gov, weather.gov/safety, or call the National Weather Service Los Angeles/Oxnard at (805) 988-6610.

ALT Civil Emergency Message Test – Monday, September 21st at 10:25 am PDT. The Los Angeles County Office of Emergency Management and the National Weather Service will test the Civil Emergency Message (CEM) system on Monday, September 21st at 10:25 am PDT. NOAA Weather Radios will activate with alert tones during this planned emergency exercise. This test ensures mass communication systems function properly for National Preparedness Month initiatives. For emergency preparedness resources or more information about this test, visit ready.lacounty.gov, weather.gov/safety, or call the National Weather Service Los Angeles/Oxnard at (805) 988-6610.
































