El Niño could be a disaster for California
A flooded vineyard in Forestville after storms in 2024. California grapegrowers are preparing for El Niño, though a rainy winter is typically good news for them.
TL;DR
- A powerful El Niño winter is predicted for California, which typically brings heavy rainfall.
- While winter rain is usually beneficial for grapevines, excessive amounts can cause soil erosion and damage vineyards.
- Growers are concerned about "monster" storms and the potential for "apocalyptic" flooding.
- Erosion is a major worry, with the risk of fast-moving floodwaters washing away soil, vines, and stakes.
- Environmental experts warn of outsized impacts on vineyards in drier regions.
- Safeguards like jute netting, plastic tarps, and cover cropping are being implemented to protect against erosion.
- Cover cropping, using plants like mustardseed or radishes, is considered the gold standard for erosion control.
- The early end of the past harvest provides growers more time to prepare.
- Prolonged flooding could hinder oxygen distribution to roots and disrupt flowering if vines bud early.