| By: Department of Water Resources (DWR) Published: Oct 1, 2007 at 10:47 | |
October 1st is the beginning of the 2007-2008 water year which will last until September 30, 2008.
During this period, Department of Water Resources (DWR) hydrologists and meteorologists will measure precipitation (the combination of rain and snow) and runoff in the Northern Sierra and other key watersheds and produce runoff forecasts.
The northern Sierra and southern Cascades are of particular importance because that's where most of the state's water supply accumulates. Measurements are taken in the watersheds of the major rivers, including the Sacramento, Feather, Yuba and American. Snow surveys are conducted throughout the Sierra range and other mountains to measure water content. The first Snow Survey will be around the first of December, the date to be announced.
The data that is gathered is evaluated to forecast water supply for the spring and summer, the heaviest months of water use by farms and homes.
For the Sacramento River basin the past 2006-2007 water year finished as the 18th driest in the 102 year record of stream flow measurements.
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