Extreme PRCP events during winter in the United States and their frequency under extreme phases of the PNA
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Extreme high PRCP events and the PNA Days on which the PRCP amount was in the top 20% of the 1948-1997 NDJFM days with measureable recorded PRCP View maps like example to left of relative occurrences of high PRCP during extreme positive and negatve phases of PNA See also PRCP and:  NAM   CTI  See also PNA and:  TMAX  TMIN  SNOW	Occurrences of PRCP and the PNA Days on which measureable PRCP was recorded View maps like example to left of relative PRCP occurrences during extreme positive and negatve phases of PNA See also PRCP and:  NAM   CTI  See also PNA and:  TMAX  TMIN  SNOW
Help and reference information on PRCP and the PNA
PRCP is    Daily precipitation (total liquid water equivalent) More on PRCP	PNA is    the Pacific-North America pattern index More on the PNA