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Lightning Prediction System
Our Lightning Prediction System in Gillette and Wright
Installed in the fall of 2018, our ThorGuard Lightning “Prediction” system lets all of us know in advance that conditions are building towards a lightning strike
The system includes hyperstatic sensors at six primary sites. They monitor electrical charges in the atmosphere within 15 miles of the sensor
It’s related warning equipment provides warning that the system is predicting a lightning strike will occur within the next 10-15 minutes within 2.5 miles of the sensor
The warning triggers a 15 second horn, and a strobe light that goes off until the all clear, when the horn will go off three times, 5 seconds each
Each of these sensor sites have a Warning Horn and flashing Strobe Light, and each of them also has 1 to 3 remote warning horn/strobe light sites that are slaved off of the nearest sensor site.
Using your smart phone, tablet or computer, go to:
There are five detector sites in Gillette, one in Wright.
- Thunder Basin High School
- Campbell County High School
- Bicentennial Park
- Cam-Plex
- Bell Nob Golf Course
- Wright High School
When you open up one of the sites, there is a lot of information displayed:
The little red bar in the center of the black line displays the type of electrical charge being sensed at that site.
- If the bar moves to the left, it’s mostly negative charges.
+ If to the right, it’s mostly positive charges.
LHL—Lightning Hazard Level
The percentage chance of lightning / amount of energy within 15 miles of this sensor
DI—Dynamic Index
The percentage chance of lightning / amount of energy change within 2.5 miles of this sensor
AD—Activity Detector
The time since the last discharge/lightning strike. It will count down from 10 minutes, and at zero, an ALL Clear will be signaled (three 5 second blasts of the warning horn)
FCC-Field Collapse Count
How many lightning strikes (field discharges) within 15 miles since the last time the system went into alert status (the point when it last predicted a strike within 2.5 miles within the next 10-15 minutes)