StreamTracker & Water Level Monitoring Center
Real-Time Data for Flood Conditions
Access real-time stream levels, local rainfall data, and predictive flood forecasts across the Tri-Valley. We offer three monitoring tools depending on the specific information you need—whether its immediate local rainfall and flood conditions, federal stream gauge levels, or multi-day storm forecasts, the tools found here are great resources to help you and your family stay Flood Ready!
Zone 7’s StreamTracker sensor data is collected continuously at fixed intervals, most commonly 15 minutes. Data collection intervals for other resources are determined by each specific managing agency. NOTE: brief delays or data gaps may occur during extreme weather events. Please exercise caution when viewing live raw sensor data.
Zone 7 StreamTracker
Our local sensor network measures real-time stream flow, stream level (stage), local rainfall, and visual flood watch thresholds across the Tri-Valley with the option to sign-up for notifications. Some stations have cameras setup to view images of stream conditions. These images are updated every 15-30 mins.
How to Use the Zone 7 StreamTracker
Step 1: Find Your Gauge
Click any stream icon on the map, type a station or channel name into the search bar (top left), or click List View (top right) to see all stations.
Step 2: View Live Graphs & Thresholds
Select stream level or rainfall charts. Toggle Flood Watch Thresholds (top right) to view key water level alert markers on the graph.
Step 3: Filter & Export Data
Adjust the start/end dates above the graph, drag to zoom into specific timeframes, or use the Data Download / API menu link on the left to export CSV files.
Additional Monitoring Resources
Please note the resources listed below will link to external websites that are not provided or maintained by, or in any way affiliated with Zone 7.
USGS Stream Dashboard
Federal stream gauge network displaying real-time stream level, flow discharge rate (cfs), and long-term historical archives.
Key Features:
- Stream flow and level data
- Free automated SMS water alerts
- Multi-year historical data archives
NOAA Stream Forecasts
Predictive stream modeling from the National Water Prediction Service, forecasting upcoming storm runoff and peak water levels.
Key Features:
- Future stream level projections
- Weather and storm runoff modeling
- National Weather Service forecasts
How to Use the USGS Stream Dashboard
Step 1: Locate your station
Zoom into the Tri-Valley on the interactive map or enter your city/location into the search bar, then click the desired circle gauge icon.
Step 2: Select Your Graph
Scroll down to switch between Discharge (cubic feet per second) and Gauge Height (feet) graphs.
Step 3: Set Text Alerts & History
Click WaterAlert to sign up for free text notifications when water reaches custom levels, or select Daily Data to view historical trends.
How to Use NOAA Stream Forecasts
Step 1: Find Your Location
Zoom into the regional map or type your station/city into the search bar to choose a gauge.
Step 2: Compare Forecast vs. Observed
View current water levels alongside projected stream height forecasts based on incoming storm models.
Step 3: Access Full Gauge Details
Click Full Gauge Page for extended meteorological context and river stage threshold tables