National Weather Service United States Department of Commerce

A storm system moved across the northeast part of the country on November 16 and 17, 2006. This produced very heavy rainfall and damaging winds across parts of Central New York and Northeast Pennsylvania. The very heavy rainfall produced flash flooding in many locations across the area. 


The graphic below is a Multisensor Precipitation Estimates map, otherwise known as MPE data. The data used to produce this graphic is a combination of radar and precipitation gages. Click on the image below for a larger view. 

MPE precipitation map.

When using MPE data, it is important to remember it is vulnerable to the same inaccuracies that can be caused by either radar or precipitation gages. For radar, problems would be: freezing or frozen precipitation, low topped convection, bright banding, the reflectivity/rainfall relationship in use, calibration of the radar, radar location and elevation, range degradation, and the radar's effective coverage. For precipitation gages, problems come from freezing precipitation, windy conditions, gage siting, undermeasurement by tipping bucket gages in high intensity rainfall, and gage maintenance. 

Below is a graphic of rainfall reports from hghway departments, cooperative observers, SKYWARN spotters and media.

Rainfall reports map.