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Stormwater Rainfall Data

Why Accurate Rainfall Matters for Stormwater Inspections

Stormwater inspections rely on defensible, timestamped rainfall records. But manual gauges and scattered online sources often introduce errors—especially when inspections require documentation of 0.1", 0.25", 0.5", or 1.0" qualifying rain events.

To support compliance, inspectors need site-specific rainfall totals they can trust, backed by National Weather Service (NWS) data.

GPS-Precise Rainfall for Your Jobsite

 

  1. WaterWatch PRO delivers rainfall estimates based on:
     

  • NOAA’s Multi-Radar Multi-Sensor (MRMS) system
     
  • Nationwide, hourly recalibration
     
  • Radar + rain gauge blending
     
  • 1 km (~0.6 mile) grid precision
     

This ensures you see the rainfall that actually occurred at your project’s coordinates, not miles away.

Built for Stormwater Inspectors

 

  1. Whether you follow NPDES, MS4, CGP, DOT, or state-level permit criteria, WaterWatch PRO helps you:
     

  • Verify qualifying rain events
     
  • Document storm events in real time
     
  • Support sampling and inspection decisions
     
  • Maintain defensible rainfall records
     
  • Reduce site visits and manual logging
     
  • Prepare clean, consistent compliance reports

Daily and Past Rainfall in One Dashboard

 

See the rainfall totals that actually fell at your site. WaterWatch PRO combines daily, hourly, and historical rainfall into a single, easy-to-use dashboard—no more hopping between apps or manually checking gauges.

You receive:

  • 24-hour rainfall totals
     
  • Hour-by-hour breakdowns
     
  • 3-, 7-, and 14-day views
     
  • Historical archives for compliance documentation
     

Designed for stormwater inspectors, MS4 teams, and construction managers who need fast, audit-ready rainfall data without any manual entry.

Start Your Free 30-Day Trial

 Experience site-specific rainfall monitoring powered by NOAA and GPS-level precision. No credit card required. 

Start a FREE Trial (no credit card needed)

WaterWatch PRO is a product of Wise Weather, LLC Copyright © 2026

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