Sirens for detecting lightning will be tested close to Arlington schools this Friday.

Arlington County is testing a new lightning detection siren system near high school fields in a pilot program. The system will sound a one-horn blast and flash a strobe light when lightning is detected within 10 miles, signaling for people to seek indoor shelter. Once it is safe to go back outside, a three-horn blast will sound for three seconds. The purpose of the system is to reduce human error in detecting lightning and ensure the safety of students and coaches during outdoor activities. The siren tests will take place on Friday afternoon at Wakefield, Washington-Liberty, and Yorktown high schools. If deemed successful, the program will continue for the school year, with officials evaluating its effectiveness and reception among coaches. The cost of the program would be $5,897 annually with a one-time setup fee as part of a seven-year agreement. Arlington County officials are hopeful that the new lightning detection system will provide added safety measures for outdoor activities and prevent potential lightning-related emergencies.

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