About

Advanced Hydrologic Prediction Service

The Advanced Hydrologic Prediction Service (AHPS) is a new and essential component of our Climate, Water, and Weather Services. AHPS is a web-based suite of accurate and information-rich forecast products. They display the magnitude and uncertainty of occurrence of floods or droughts, from hours to days and months, in advance.

West Virginia Division of Homeland Security and Emergency Management Flood Warning System

In April of 2005, ONS was contacted to update and maintain the www.rainfall.net website.

The purpose of the Integrated Flood Observation and Warning System (IFLOWS) is to reduce the annual loss of life from flash floods, reduce property damage, and reduce the disruption of commerce and human activities.

Precipitation Mapping

In the later part of 2005, ONS was contacted to update and maintain the https://water.weather.gov/precip website.

Precipitation mapping is a system that takes raw data provided by NWS, converts said data to a graphical representation, and serves this data to a frontend interface where it can be examined by the user. This system has recently been upgraded to a full tile system used to serve large quantities of graphics to users quickly with low client-side costs.

Flood Inundation Mapping

The National Weather Service Inundation Mapping Interface is a web-based tool that is integrated into the AHPS web suite and provides flood inundation maps that show the extent of flooding expected spatially over a given area. This is a geographic information system (GIS) project that ONS developed for the National Weather Service Office of Hydrologic Development in conjunction with the Office of Climate Water and Weather Services, US Army Corps of Engineers, and US Geological Survey. ONS has developed 94 sites to date with additional sites planned to be completed in the next few years since becoming a national-level project.