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Forecast Lookup

Look up NOAA/NWS forecasted precipitation for any U.S. location. Summarized into six-hour periods to help evaluate storm event thresholds for CGP inspection planning and stormwater preparation.

Note: This tool's storm-event flagging is currently calibrated to California's rain thresholds. If your site is outside California, treat a flagged event as a helpful early signal rather than a determination that your permit's inspection trigger has been met. Always confirm against your applicable state or federal CGP threshold.

Final compliance determinations remain the responsibility of the permittee and the applicable regulatory agency.

Location

Click the map to get a forecast for that location, or enter an address below.

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Disclaimer: This article is for general informational purposes only and does not constitute legal, regulatory, or professional engineering advice. Requirements vary by state, county, and jurisdiction. Always consult a licensed professional for your specific situation.