AHPS Precipitation Analysis
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On October 16, 2007, the latitude and longitude specifying the position of each grid in the AHPS (Advanced Hydrologic Prediction Service) observed precipitation shapefiles will be shifted from the lower left corner to the center of each 4x4 km grid cell. This provides spatial referencing more commonly used in contemporary geospatial analysis... more

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 CONUS + Puerto Rico: Current 1-Day Observed Precipitation
 Valid at 8/19/2008 1200 UTC - Created 8/19/08 22:37 UTC
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