The City of Allen activated its outdoor warning sirens around 9:05 a.m. on Tuesday, Dec. 13 due to radar indicated rotation. Take shelter indoors until the storm passes!
Allen operates 26 outdoor warning sirens that sound during severe weather events, including:
- Large hail greater than 1 inch in diameter
- Winds greater than 70 mph
- Tornado warnings naming Allen in the path
- Radar-indicated rotation
Allen uses data from the National Weather Service, weather radars, and trained storm spotters/public safety officers to determine when these criteria are met. Allen’s outdoor warning sirens are designed to alert people outdoors of the need to find shelter and seek information. You may not be able to hear them indoors as other noises or insulation can muffle the tone. Allen Emergency Management recommends using phone apps, TV/radio reports, and NOAA weather radios to receive warnings while indoors. Learn more about storm and tornado safety.