Information in each Weekly Soil Moisture Loss Report Estimates
labeled "West of the Sacramento River" are based on weather
measurements taken near Gerber. Estimates labeled "East of the
Sacramento River" are based on measurements taken near Durham.
They are for healthy crops, where soil moisture is not limiting
crop growth. Estimates are for bearing orchards (typically fifth
leaf or older). Estimates suggest a maximum amount of irrigation
water needed. Rainfall received during the growing season and
stored soil moisture from the dormant season also contributes to
meeting these estimates and will reduce the irrigation water
needed. Irrigation decisions based on this information should be
confirmed with field monitoring. Irrigation systems that apply
water with a high uniformity require less water to supply the
crop needs. This season, we are continuing to provide NOAA
forecasted week of water use as additional information. Use in
the Spring Season to Help Decide When to Begin the Irrigation
Season Referring to