Ohan May 5, 2021, 7:12am 5

duane:

a good post on the forum about the difference between 1km radar, 4km radar and composite radar

Probably this one:

Radar composite vs RainViewer [Answered]

There are three issues here: What is RainViewer data What is HRRR Composite radar Understanding the weather RainViewer is real MEASURED data so it’s only history up to about 10 minutes prior to now. Radar are slices through the atmosphere. HRRR Radar is PREDICTED forward from measured radar. The 1km and 4km radar is similar to a measured radar slice. Composite is merged many slices together. Don’t quote me on this. This is my understanding and can be wrong. Understanding weather - Sh…

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Radar vs. Precipitation graph