Merced, Madera, Fresno, Clovis and Visalia sit within the Hanford National Weather Service office’s forecast territory—a useful reminder that a statewide heat headline breaks down into local workdays, and local exposure, once it reaches the orchard.
The advisory map covers much of Northern and Central California, but its edges and end times vary by region. The National Weather Service advisories were issued by the Sacramento, San Francisco and Hanford offices on the morning of Oct. 1.
One forecast, several work windows
Forecast highs range from the mid-90s to about 103 degrees. In the Bay Area and San Joaquin Valley, the advisory runs from 11 a.m. Saturday through 10 p.m. Sunday; around Sacramento, the Delta and Stockton, it continues through 10 p.m. Monday.
For almond operations, the concern is not confined to harvest. Outdoor crews may be doing field or facility work while the weather still behaves like summer, and heat stress can turn a routine task into a worker-safety problem.
Heat protection is the practical work
Cal/OSHA issued a follow-up reminder to employers to protect workers during the high-heat period. The agency’s warning puts the focus on the people doing the work, not just the temperature on a forecast screen.
A recent Ag Alert account of farmworker heat-illness prevention kits included familiar, unglamorous equipment: reusable water bottles and sun hats. Those items do not make a hot shift cool, but they are part of the ordinary preparation that heat illness prevention depends on.
The forecast is regional; heat exposure happens crew by crew. For almond managers, that difference is where the advisory becomes an operating question.