Hydrology &
Flood Operations
Hydrology
- California Data Exchange Center
- California State Meteorologist
- California Cooperative Snow Surveys
- Reservoir Operations
- River Forecasting
Snow Surveys
Snow Surveys
3310 El Camino Ave.
Sacramento, CA 95821
Mailing Address:
P.O. Box 219000
Sacramento, CA 95821-9000
Flood
Management Hydrology & Flood
Operations Hydrology Snow
Surveys Bulletin
120: Water Conditions in CaliforniaBulletin 120: Water Conditions in California
Bulletin 120 is a publication issued four times a year, in the second week of February, March, April, and May by the California Department of Water Resources. It contains forecasts of the volume of seasonal runoff from the state's major watersheds, and summaries of precipitation, snowpack, reservoir storage, and runoff in various regions of the State.
Hydrologic data used in producing the these bulletins and reports is maintained by fellow section, the California Data Exchange Center.
The complete Bulletin 120 is now available in PDF format starting in 1999.
Bulletins by Year
- 2008
- Bulletin 120 for February 2008 (PDF: 771KB)
- Bulletin 120 for March 2008 (PDF: 759KB)
- Bulletin
120 for April 2008 (PDF: 757KB)
- contains minor errors in Feather and American
Water Years, latest values available from the California Data Exchange Center - Bulletin 120 for May 2008 (PDF: 756KB)
- 2007
- Bulletin 120 for February 2007 (PDF: 779KB)
- Bulletin 120 for March 2007 (PDF: 778KB)
- Bulletin 120 for April 2007 (PDF: 780KB)
- Bulletin 120 for May 2007 (PDF: 775KB)
- 2006
- Bulletin 120 for February 2006 (PDF: 797KB)
- Bulletin 120 for March 2006 (PDF: 812KB)
- Bulletin 120 for April 2006 (PDF: 812KB)
- Bulletin 120 for May 2006 (PDF: 819KB)
- 2005
- Bulletin 120 for February 2005 (PDF: 814KB)
- Bulletin 120 for March 2005 (PDF: 812KB)
- Bulletin 120 for April 2005 (PDF: 789KB)
- Bulletin 120 for May 2005 (PDF: 787KB)
- 2004
- Bulletin 120 for February 2004 (PDF: 783KB)
- Bulletin 120 for March 2004 (PDF: 844KB)
- Bulletin 120 for April 2004 (PDF: 847KB)
- Bulletin 120 for May 2004 (PDF: 851KB)
- 2003
- Bulletin 120 for February 2003 (PDF: 740KB)
- Bulletin 120 for March 2003 (PDF: 734KB)
- Bulletin 120 for April 2003 (PDF: 778KB)
- Bulletin 120 for May 2003 (PDF: 782KB)
- 2002
- Bulletin 120 for February 2002 (PDF: 752KB)
- Bulletin 120 for March 2002 (PDF: 738KB)
- Bulletin 120 for April 2002 (PDF: 734KB)
- Bulletin 120 for May 2002 (PDF: 1.3MB)
- 2001
- Bulletin 120 for February 2001 (PDF: 1MB)
- Bulletin 120 for March 2001 (PDF: 1MB)
- Bulletin 120 for April 2001 (PDF: 1MB)
- Bulletin 120 for May 2001 (PDF: 1MB)
- 2000
- Bulletin 120 for February 2000 (PDF: 1MB)
- Bulletin 120 for March 2000 (PDF: 1MB)
- Bulletin 120 for April 2000 (PDF: 1MB)
- Bulletin 120 for May 2000 (PDF: 1MB)
- 1999
- Bulletin 120 for February 1999 (PDF: 448KB)
- Bulletin 120 for March 1999 (PDF: 168KB)
- Bulletin 120 for April 1999 (PDF: 169KB)
- Bulletin 120 for May 1999 (PDF: 237KB)
- 1998
- Bulletin 120 for February 1998 (PDF: 448KB)
- Bulletin 120 for March 1998 (PDF: 168KB)
- Bulletin 120 for April 1998 (PDF: 169KB)
- Bulletin 120 for May 1998 (PDF: 237KB)
- 1997
- Bulletin 120 for February 1997 (PDF: 448KB)
- Bulletin 120 for March 1997 (PDF: 168KB)
- Bulletin 120 for April 1997 (PDF: 169KB)
- Bulletin 120 for May 1997 (PDF: 237KB)
- 1996
- Bulletin 120 for February 1996 (PDF: 448KB)
- Bulletin 120 for March 1996 (PDF: 168KB)
- Bulletin 120 for April 1996 (PDF: 169KB)
- Bulletin 120 for May 1996 (PDF: 237KB)
- 1995
- Bulletin 120 for February 1995 (PDF: 448KB)
- Bulletin 120 for March 1995 (PDF: 168KB)
- Bulletin 120 for April 1995 (PDF: 169KB)
- Bulletin 120 for May 1995 (PDF: 237KB)
- 1994
- Bulletin 120 for February 1994 (PDF: 448KB)
- Bulletin 120 for March 1994 (PDF: 168KB)
- Bulletin 120 for April 1994 (PDF: 169KB)
- Bulletin 120 for May 1994 (PDF: 237KB)
Forecasts
- Summary of latest B120 report
- Latest update to B120 report
- Latest forecast of Water Supply Indicies
- Historical Water Supply Indicies
- The CNRFC's snowmelt forecast
Water Supply Conditions
Comparisons with previous years in this month.
