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Pictures from around western Colorado and eastern Utah



The Lightning Potential Index (LPI) provides graphical guidance for the potential of lightning over a 60 hour period.  This looping product will update continuously on a 3 hourly basis as new model information becomes available. This information should be used for general planning purposes only and is provided for the National Weather Service Grand Junction area of responsibility (eastern Utah and western Colorado). You are urged to seek out the latest forecast information by visiting WFO Grand JunctionPlease visit our Lightning Safety Page for more information.

Lightning Potential Index


Color Key and Explanation
Low Risk Low Risk: The lightning threat may either be negligible or low.  Isolated thunderstorms may occur, but the probability of thunderstorms is low.
Moderate Risk The lightning threat is considered moderate.  Isolated thunderstorms are expected within the green area.
High Risk The lightning threat is considered high.  Expect scattered thunderstorms within the yellow area.  Plan accordingly, as there is a high probability of lightning in the yellow area.  Be aware of lightning safety guidelines. 
Extreme Risk Lightning in the red area will occur.  Practice lightning safety, as the threat of lightning is imminent.







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