Watches, Warnings, Advisories, and Statements
High Water Records
White Water gage readings can be obtained by calling (412)
Daily Precipitation, Stages, and Temperature
Watches, Warnings, Advisories,
These products are issued as needed and may not be current.
Please check the time and date!
The Hydrologic Services Area (HSA) encompasses portions of four
states: Western Pennsylvania The northern panhandle of northern West Virginia East Central Ohio
Garrett County Maryland
The Monongahela, Allegheny and Upper Ohio River are the primary
streams in this HSA. These form the headwaters of the Ohio River. Major tributaries include the
Beaver, Clarion, Cheat, and Youghiogheny Rivers. In December 1994, the Pittsburgh HSA added most of
the Muskingum River basin in East Central Ohio to its HSA.
HSA rivers flow through many heavily-populated river valleys,
including the city of Pittsburgh. Pittsburgh is the largest inland port in the nation. When seaports
are considered, Pittsburgh ranks 11th. Commercial barge traffic on the primary streams has a
significant impact on the economy of the four-state region. According to a Port of Pittsburgh
Commission study released in July 1996, these rivers generate nearly 120,000 jobs and $5.2 billion
in wages annually.
Most commonly, hydrologic problems occur when heavy rain falls
over moderately steep/mountainous headwater areas, resulting in flash flooding in narrow, populated
valleys. Among the nation's fastest responding mainstem river systems, flooding on the HSA's
rivers occurs when synoptic-scale systems bring widespread rainfall. Ice jams and moderate rainfall
on snow during the cooler months can also produce significant flooding.
The Pittsburgh HSA has over forty forecast points. Forecast
guidance is provided by the Ohio River
Forecast Center (OHRFC) in Wilmington, Ohio. In addition to daily river stage forecasts, the
Pittsburgh Forecast Office issues River Ice Statements at least twice weekly during ice season.
The following graphics show all the forecast points that we forecasts
stages for on a daily basis.
River Ice Jams are also a big problem on the Allegheny
River in the winter and spring. Check out ourAllegheny River
Ice Jam Map
The High Water Records for each station can be found
on the AHPS home page. Select the
forecast point and the records are listed on the page. These records are up to date and amended when