苗栗縣 Live Rainfall

Assessing storm hazards requires distinguishing between short-term burst intensity and prolonged saturation:

1. [Urban Street Inundation]: When 1-hour rainfall exceeds 40 mm, or 3-hour rainfall surpasses 100 mm, municipal storm drains often reach peak conveyance capacity, leading to temporary street flooding in low-lying sectors.

2. [Mountain Landslides & Debris Flows]: When 24-hour accumulation hits 80 mm (Heavy Rain) or 200 mm (Extremely Heavy Rain), steep hillsides approach soil saturation. Residents in 苗栗縣 should monitor Ministry of Agriculture debris-flow warning bulletins and avoid mountain travel.

OpenViz consolidates real-time telemetry from multiple official networks published via the CWA Open Data Platform:

1. [CWA Automated Weather Stations]: Dispersed across populated townships and regional climate nodes. 2. [Water Resources Agency Flood Telemetry]: Stationed around dams and primary river channels for flood retention and drainage coordination. 3. [Soil and Water Conservation Stations]: Dedicated to monitoring high-risk debris-flow watersheds. 4. [Schools and Civic Stations]: Installed on public rooftops to boost microclimate density across local communities.

Automated observation stations transmit data to the Central Weather Administration every 10 minutes.

OpenViz continuously pulls and processes these updates, allowing you to switch between 1-hour, 3-hour, 12-hour, 24-hour, and today's accumulated rainfall to instantly pinpoint active hotspots.