RiverWatch by MrJordanRoth
Near real-time NOAA river stage levels, streamflow rates, and 3-day hydrograph trends.
Extension Metadata
About this extension
Stay updated on local river conditions instantly without searching complex web pages. RiverWatch brings near real-time NOAA river stage levels, discharge streamflow rates, and 3-day trend charts directly to your Chrome toolbar.
Whether you are planning a kayaking trip, checking fishing conditions, or keeping an eye on rising flood waters near your home, RiverWatch gives you the critical water data you need in a single click.
KEY FEATURES
• Live Toolbar Icon Badge: View the current river stage height directly on your browser icon. The badge color updates automatically based on official NOAA flood severity (Normal, Action, Minor, Moderate, or Major Flood).
• Interactive 3-Day Hydrograph: Hover over the high-resolution trend chart to inspect precise stage measurements and exact observation timestamps over the past 72 hours.
• Stage & Streamflow Metrics: Get instant access to current gauge height (ft) and discharge streamflow rates (kcfs).
• Official NOAA Flood Thresholds: Displays station-specific Action, Minor, Moderate, and Major flood stage levels at a glance.
• Custom Station Selection: Monitor any 5-character NOAA/NWSLI river gauge in the United States (e.g., WLGW2, PITP1).
• Dark & Light Themes: Clean visual design that seamlessly adapts to Dark Mode, Light Mode, or your System Default settings.
• Lightweight & Fast: Built on Manifest V3 with smart 15-minute local caching to deliver instantaneous popup load times without slowing down your browser or draining battery.
HOW TO USE
Whether you are planning a kayaking trip, checking fishing conditions, or keeping an eye on rising flood waters near your home, RiverWatch gives you the critical water data you need in a single click.
KEY FEATURES
• Live Toolbar Icon Badge: View the current river stage height directly on your browser icon. The badge color updates automatically based on official NOAA flood severity (Normal, Action, Minor, Moderate, or Major Flood).
• Interactive 3-Day Hydrograph: Hover over the high-resolution trend chart to inspect precise stage measurements and exact observation timestamps over the past 72 hours.
• Stage & Streamflow Metrics: Get instant access to current gauge height (ft) and discharge streamflow rates (kcfs).
• Official NOAA Flood Thresholds: Displays station-specific Action, Minor, Moderate, and Major flood stage levels at a glance.
• Custom Station Selection: Monitor any 5-character NOAA/NWSLI river gauge in the United States (e.g., WLGW2, PITP1).
• Dark & Light Themes: Clean visual design that seamlessly adapts to Dark Mode, Light Mode, or your System Default settings.
• Lightweight & Fast: Built on Manifest V3 with smart 15-minute local caching to deliver instantaneous popup load times without slowing down your browser or draining battery.
HOW TO USE
- Click ⚙ Settings to enter your local 5-character NWSLI gauge code (e.g., WLGW2).
- Click the RiverWatch icon anytime to check current water conditions and 3-day trends.
- Click ↗ NOAA to open the official full webpage for your selected station.
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Permissions and data
Optional permissions:
- Access your data for api.water.noaa.gov
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.0.3
- Size
- 491.72 KB
- Last updated
- 4 days ago (Sep 3, 2026)
- Related Categories
- License
- MIT License
- Version History
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