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National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

Storm Summaries

The following studies detail the significant precipitation events that have occurred across southwest Oregon, California, and Nevada. These storm summaries have been compiled since events during the 2004-2005 winter season. Widespread events occurring before this season will be added as time permits.


2012 - 2013 Winter Season

NOAA logo  November 28, 2012 - December 03, 2012
Location / Event: Northern CA and Western NV Heavy Precipitation Event
Authors: Mike Ekern, Jamie Meier, Kyle Lerman, and Dan Kozlowski


2010 - 2011 Winter Season

NOAA logo  October 23, 2010 - October 25, 2010
Location / Event: Northern/Central CA and Northern NV Early-Season Heavy Precipitation Event
Authors: Dan Kozlowski, Kyle Lerman, and Mike Ekern

NOAA logo  December 16, 2010 - December 23, 2010
Location / Event: California and Nevada
Authors: Kyle Lerman, Mike Ekern, Dan Kozlowski, and Brett Whitin


2009 - 2010 Winter Season

NOAA logo  October 13, 2009 - October 14, 2009
Location / Event: Northern/Central CA and Western NV Early-Season Heavy Precipitation Event
Authors: Kyle Lerman, Mike Ekern, and Dan Kozlowski


2005 - 2006 Winter Season

NOAA logo  December 24, 2005 - January 03, 2006
Location / Event: Southwest OR, Northern CA, and Western NV Significant Precipitation Event
Authors: Dan Kozlowski and Mike Ekern

NOAA logo  April 02, 2006 - April 06, 2006
Location / Event: Southern Sierra Nevada and San Joaquin Valley Significant Precipitation Event
Authors: Dan Kozlowski and Mike Ekern


2004 - 2005 Winter Season

NOAA logo  January 07, 2005 - January 11, 2005
Location / Event: Southern California Significant Precipitation Event
Authors: Dan Kozlowski and Mike Ekern

NOAA logo  February 17, 2005 - February 23, 2005
Location / Event: Southern California Significant Precipitation Event
Authors: Dan Kozlowski and Mike Ekern

NOAA logo  May 17, 2005 - May 19, 2005
Location / Event: Northern California Significant Precipitation Event
Authors: Dan Kozlowski and Mike Ekern


1996 - 1997 Winter Season

NOAA logo  December 26, 1996 - January 03, 1997
Location / Event: Southwest OR, Northern CA, and Western NV Significant Precipitation Event
Authors: Dan Kozlowski and Mike Ekern


1985 - 1986 Winter Season

NOAA logo  February 11, 1986 - February 20, 1986
Location / Event: Northern and Central CA and Western NV Significant Precipitation Event
Authors: Jamie Meier, Mike Ekern, Kyle Lerman, and Dan Kozlowski