Ag Alert March 13, 2024

CIMIS REPORT | www.cimis.water.ca.gov

CALIFORNIA IRRIGATION MANAGEMENT INFORMATION SYSTEM

For the week of February 29 - March 6, 2024 ETO (INCHES/WEEK)

YEAR

3.0

THIS YEAR

2.5

LAST YEAR AVERAGE YEAR

2.0

1.5

1.0

0.5

0.0

MACDOEL II (236)

BIGGS (244)

DAVIS (06)

MANTECA (70)

FRESNO (80)

SALINAS-SOUTH (214)

FIVE POINTS (2)

SHAFTER (5)

IMPERIAL (87)

THIS YEAR LAST YEAR AVG. YEAR % FROM AVG.

0.37 0.37 0.56 -33

0.37 0.56 0.63 -41

0.44 0.59 0.65 -33

0.49 0.57 0.65 -23

0.64 0.54 0.67 -4

0.64 0.62 0.72 -12

0.65 0.56 0.74 -13

0.73 0.62 0.73 2

1.36 0.90 1.08 28

W eekly reference evapotranspiration (ETo) is the rate of water use (evapotranspiration—the sum of soil evaporation and crop transpiration) for healthy pasture grass. Multiplying ETo by the appropriate “crop coefficient” gives estimates of the ET for other crops. For example, assume ETo on June 15 is 0.267 inches and the crop coefficient for corn on that day is 1.1. Multiplying ETo by the coefficient (0.26 inches x 1.1) results in a corn ET of 0.29 inches. This

information is useful in determining the amount and timing of irriga- tion water. Contact Richard Snyder, UC Davis, for information on coefficients, 530-752-4628. The 10 graphs provide weekly ETo rates for selected areas for average year, last year and this year. The ETo information is provided by the California Irrigation Management Information System (CIMIS) of the California Department of Water Resources.

For information contact the DWR district office or DWR state headquarters:

SACRAMENTO HEADQUARTERS: 916-651-9679 • 916-651-7218

NORTHERN REGION: Red Bluff 530-529-7301

NORTH CENTRAL REGION: West Sacramento 916-376-9630

SOUTH CENTRAL REGION:

SOUTHERN REGION:

Fresno 559-230-3334

Glendale 818-500-1645 x247 or x243

Beginning farmers and ranchers in California face many challenges in sustaining their agricultural operations. This program provides no-cost mentoring services from experienced farmers and ranchers to facilitate knowledge transfer. Enroll in a New Program Aimed at Preserving California’s Agricultural Heritage. Beginning Farmers & Ranchers Mentorship Program

Who can become a mentor? Farmers (including specialty crop growers) and ranchers with more than 10 years of experience operating a production agriculture business in California can become mentors. Who can become a mentee? Farmers (including specialty crop growers) and ranchers with one to 10 years of experience operating a production agriculture business in California can become mentees.

To enroll as a mentor or mentee, complete an online application at cfbf.com/EOR . Information from the online application will be used to match mentors and mentees.

Scan the QR code to enroll.

March 13, 2024 Ag Alert 21

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