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Audible Horn and Visible Strobe Lights Activate When Lightning is Near

Dear Visitors, 

We are pleased to tell you that we have installed a state-of-the art Sferic Siren lightning and storm detection alerting system from Earth Networks at Northern Lehigh High School's Bulldog Stadium.

When conditions are unsafe outdoors the system will alert everyone in the vicinity that it is time to seek shelter with a loud horn blast and bright strobe light.


Alert What it Means
ONE LONG 15-SECOND HORN BLAST Lightning has been detected - Take shelter immediately!
STROBE FLASHING Facility is under alert - It is unsafe to be outdoors.
THREE SHORT 5-SECOND HORN BLASTS All Clear - It is now safe to resume outdoor activities.

❓Did you know❓ You can easily check to see if our facility is currently under alert by visiting our Countdown Clock at these links:

Bulldog Stadium at Northern Lehigh High School - CHECK STATUS

To learn more about our new lightning alerting system and to download lightning safety posters, visit the Earth Networks Sferic Siren Page.


Earth Networks Inc.

12410 Milestone Center Drive, Suite 300 Germantown MD 20876 USA

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