Rio Itajaí BNU

The Itajaí River BNU app provides all the important information when the river rises in Blumenau (SC), all in one place.

The app gathers free public data from the Blumenau Civil Defense / AlertaBLU and presents everything quickly, clearly, and easily.

WHAT YOU CAN TRACK
• Near real-time Itajaí-Açu River level, with situation classification (Normal, Observation, Attention, Alert, and Maximum Alert).

• Level trend (rising, stable, or falling).

• Graph of the last 24 hours to visualize the evolution.

• Level and capacity of containment dams.

• Flood susceptibility map, searchable by address.

MADE FOR EVERYDAY USE
• Simple interface, with dark mode.

• Works even with an unstable connection: shows the last saved reading when you lose internet access.

• No registration, no login, and no ads.

• Does not collect personal data. OFFICIAL DATA SOURCE
All information presented is public and free data published by the Civil Defense of Blumenau. You can consult the official sources directly:
• Blumenau Civil Defense Portal: https://defesacivil.blumenau.sc.gov.br
• Itajaí-Açu River Level: https://defesacivil.blumenau.sc.gov.br/static/data/nivel_oficial.json
• Retention Dams: https://defesacivil.blumenau.sc.gov.br/d/barragens
• Flood Map: https://defesacivil.blumenau.sc.gov.br/c/meteorologia/mapa_alagamento

IMPORTANT NOTICE
This is an INDEPENDENT and UNOFFICIAL application. It has no connection, affiliation, sponsorship, or authorization from the Municipality of Blumenau, the Civil Defense of Blumenau, AlertaBLU, or any governmental body. It simply displays, in an organized manner, public data made available by these sources.

This application is for informational purposes only and does NOT replace official alert and emergency channels. In case of emergency, contact Civil Defense (199) or emergency services.