National Weather Service United States Department of Commerce

The National Weather Service is testing a new River Observation and Forecast Website!

For more than two decades, the National Weather Service (NWS) has delivered river observations and forecast products and

services via the Advanced Hydrologic Prediction Service (AHPS). This legacy system needed to be modernized to support

newer innovation with technology supported by scalable infrastructure that uses services-driven architecture. Currently

scheduled for Spring 2024, the NWS will replace AHPS with a new website, the National Water Prediction Service (NWPS).

Existing AHPS content and features will be preserved and expanded within NWPS.


In order to ensure NWPS delivers capabilities that meet customer and public needs, the NWS will host a public testing period

until December 15th, 2023. The goal of this testing phase is to collect feedback from you so that the feedback can be used

to ensure NWPS delivers capabilities that meet your needs. You can provide feedback via this link here.


Legacy AHPS - Advanced Hydrologic Prediction Service  Experimental NWPS - National Water Prediction Service


Access the public NWPS Testing Website here: National Water Prediction Service.