Sep 15, 2026
How to Read a Stem Water Potential Number
Michael Santiago
What a stem water potential reading measures, why we report it in bars below a fully watered vine, and how that number moved through a Napa heat wave.
Sep 03, 2026
California Crop Stress Index — August 2026
Michael Santiago
August ran cooler than last August across the Sacramento Valley and pulled more water out of the trees anyway. Across 318 California blocks, the plant signal and the weather signal spent most of the month pointing in opposite directions.
Sep 01, 2026
Almond Post-Harvest Irrigation: What Our Sensors Measured
Michael Santiago
Post-harvest is the almond irrigation window the research says to protect. Here is what 21 Sacramento Valley blocks measured through the 2026 harvest.