Water Supply Outlook for the Western United States
Published jointly by the NOAA/NWS Colorado Basin River Forecast Center and the US Department of Agriculture, NRCS (WCC).
Read the Foreword for more information.

Choose Water Year: all | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | 1999 | 1998 | 1997 | 1996 | 1995

Monthly Precipitation
2012: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2011: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2010: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2009: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2008: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2007: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2006: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2005: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2004: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2003: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2002: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2001: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2000: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
1999: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
1998: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
1997: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
1996: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
1995: Dec | Jan | Feb | Mar | Apr | May | Jun

Seasonal Precipitation
2012: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2011: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2010: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2009: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2008: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2007: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2006: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2005: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2004: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2003: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2002: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2001: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
2000: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
1999: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
1998: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
1997: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
1996: 12precip.12 | 01precip.01 | 02precip.02 | 03precip.03 | 04precip.04 | 05precip.05 | 06precip.06
1995: Dec | Jan | Feb | Mar | Apr | May | Jun

Satellite Areal Extent of Snow Cover
2012: 01nohrsc.01 | 02nohrsc.02 | 03nohrsc.03 | 04nohrsc.04 | 05nohrsc.05
2011: 01nohrsc.01 | 02nohrsc.02 | 03nohrsc.03 | 04nohrsc.04 | 05nohrsc.05
2010: Jan | Feb | Mar | Apr | May | Jun
2009: jannohrsc.jan | febnohrsc.feb | marnohrsc.mar | aprnohrsc.apr | maynohrsc.may | Jun
2008: jannohrsc.jan | febnohrsc.feb | marnohrsc.mar | aprnohrsc.apr | May | Jun
2007: jannohrsc.jan | febnohrsc.feb | marnohrsc.mar | aprnohrsc.apr | maynohrsc.may | junnohrsc.jun
2006: jannohrsc.jan | febnohrsc.feb | marnohrsc.mar | aprnohrsc.apr | maynohrsc.may | junnohrsc.jun
2005: jannohrsc.jan | febnohrsc.feb | marnohrsc.mar | aprnohrsc.apr | maynohrsc.may | junnohrsc.jun
2004: jannohrsc.jan | febnohrsc.feb | marnohrsc.mar | aprnohrsc.apr | maynohrsc.may | junnohrsc.jun
2003: jannohrsc.jan | febnohrsc.feb | marnohrsc.mar | aprnohrsc.apr | maynohrsc.may | Jun
2002: jannohrsc.jan | febnohrsc.feb | marnohrsc.mar | aprnohrsc.apr | maynohrsc.may | Jun
2001: jannohrsc.jan | febnohrsc.feb | marnohrsc.mar | aprnohrsc.apr | maynohrsc.may | junnohrsc.jun
2000: jannohrsc.jan | febnohrsc.feb | marnohrsc.mar | aprnohrsc.apr | maynohrsc.may | junnohrsc.jun
1999: jannohrsc.jan | febnohrsc.feb | marnohrsc.mar | aprnohrsc.apr | May | Jun
1998: jannohrsc.jan | febnohrsc.feb | marnohrsc.mar | aprnohrsc.apr | maynohrsc.may | Jun
1997: jannohrsc.jan | febnohrsc.feb | marnohrsc.mar | aprnohrsc.apr | maynohrsc.may | junnohrsc.jun
1996: jannohrsc.jan | febnohrsc.feb | marnohrsc.mar | aprnohrsc.apr | maynohrsc.may | Jun
1995: Jan | Feb | Mar | Apr | May | Jun

Streamflow Forecasts (tabular)
2012: Jan | Feb | Mar | Apr | May | Jun
2011: Jan | Feb | Mar | Apr | May | Jun
2010: Jan | Feb | Mar | Apr | May | Jun
2009: Jan | Feb | Mar | Apr | May | Jun
2008: Jan | Feb | Mar | Apr | May | Jun
2007: Jan | Feb | Mar | Apr | May | Jun
2006: Jan | Feb | Mar | Apr | May | Jun
2005: Jan | Feb | Mar | Apr | May | Jun
2004: Jan | Feb | Mar | Apr | May | Jun
2003: Jan | Feb | Mar | Apr | May | Jun
2002: Jan | Feb | Mar | Apr | May | Jun
2001: Jan | Feb | Mar | Apr | May | Jun
2000: Jan | Feb | Mar | Apr | May | Jun
1999: Jan | Feb | Mar | Apr | May | Jun
1998: Jan | Feb | Mar | Apr | May | Jun
1997: Jan | Feb | Mar | Apr | May | Jun
1996: Jan | Feb | Mar | Apr | May | Jun
1995: Jan | Feb | Mar | Apr | May | Jun

Spring and Summer Streamflow Forecasts
2012: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2011: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2010: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2009: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2008: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2007: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2006: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2005: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2004: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2003: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2002: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2001: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2000: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
1999: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
1998: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
1997: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
1996: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
1995: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05

Mountain Snowpack
2012: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2011: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2010: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2009: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2008: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2007: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2006: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2005: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2004: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2003: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2002: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2001: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2000: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
1999: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
1998: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
1997: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
1996: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
1995: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05

Reservoir Storage
2012: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2011: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2010: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2009: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2008: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2007: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2006: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2005: 01nrcs.01 | 02nrcs.02 | Mar | Apr | May
2004: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2003: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2002: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2001: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
2000: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
1999: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
1998: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
1997: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
1996: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05
1995: 01nrcs.01 | 02nrcs.02 | 03nrcs.03 | 04nrcs.04 | 05nrcs.05