Combining data from multiple radars and multiple sensors (known as MRMS), we can put together a more complete picture of what kind of precipitation larger scale storms are producing. Looking at an animation of multiple radars over the northeastern U.S. we can see the counterclockwise rotation associated with the low pressure system affecting the area. https://www.nssl.noaa.gov/projects/mrms/ | U.S. National Weather Service (NWS)

12/11/2024 - 12 PM EST The latest NWS national radar mosaic shows a large swath of rain that stretches from Maine to Florida along and out ahead of a potent cold front. Embedded strong thunderstorms and heavy downpours can lead to localized flooding concerns this afternoon. | NOAA NWS Weather Prediction Center

Here's a simulated radar evolution through the storm. Precipitation really fills in this afternoon. Watch for rapidly changing conditions! | US National Weather Service Gray ME

Did you know? Meteorologists use multiple types of radar to distinguish what is occurring in the atmosphere. For example, we can tell this is NOT lake effect snow based off the radar on the bottom called “correlation coefficient”. The blue shows non-meteorological phenomena in the area, while the surrounding red is uniform meteorological phenomena (rain or snow). Given how narrow this band is, along with its behavior originating from one spot, and the blues on CC radar, we can determine that thi

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