QPE-to-FFG Ratio - QPE-to-FFG Ratio - Warning Decision Training Division (WDTD)
Short DescriptionAnalogous to the ratio provided in FFMP, this is the ratio of the current MRMS Radar-Only QPE value at each grid point to the current nationally-mosaicked FFG value for the same grid point.
SubproductsAvailable for rainfall durations of 1-, 3-, and 6-hours. A maximum product exists which finds the maximum ratio across all accumulation durations.
Primary UsersNWS: WFO, RFC
Input SourcesMRMS Radar-Only QPE, and Nationally-Mosaicked FFG
Spatial: ~1 km x 1 km
Temporal: 2 minutes (Keep in mind FFG only updated every 6 hours)