A pair of storms are on their way to Southern California this week and will bring the region a chance of showers on Tuesday and Thursday.
Above-average temperatures are expected on Monday, but clouds will begin to increase later in the day as a weak weather system begins to move over the Southland.
Forecasters are calling for a chance of rain Tuesday afternoon, with only about .10 of an inch expected.
Don’t hold your breath for California’s drought ending with this winter’s rains. Instead, you’d do well to hold your shower time to a minimum.
There’s less than a 40% chance of water supplies getting back to normal after this winter, with a slightly better than 50% chance that the state’s drought will worsen, according to forecasters at a Monday, Nov. 22, drought webinar hosted by the National Integrated Drought Information Center. The center is led by NOAA, the National Oceanic and Atmospheric Administration.
The Bay Area is preparing for the second atmospheric river storm to soak the region this rainy season and alleviate the dire drought conditions in Northern California. There will be a slight chance of rain on Friday night into Saturday morning, with less than 0.10 of an inch forecasted in the North Bay, according to the National Weather Service.
As drought continues to affect California, homeowners must balance two needs: preserving landscaping with irrigation while doing so as efficiently as possible to conserve water.
Even when not in a drought, trees planted in a Mediterranean climate often need additional water. For the most effective irrigation, mimic the way Mother Nature provides water.
Nature designed trees so rain would fall on the leaves and run off to the sides of the tree – much like rain hits an umbrella and rolls down off the side. It falls in a circle around the perimeter.
When irrigating trees, this same approach provides the most moisture to roots and maximizes water use. This outer edge around a tree where rain falls is called the drop line. This is where the tree sends out its most vigorous feeder roots to soak up available moisture. Using a hose to water at the trunk of trees doesn’t reach many of the roots.
Focus on longer, slower delivery of water than mimics a long, light rainfall. Photo: Ulrike Leone
When it does rain, Mother Nature’s rainfall is primarily steady, slow, and spread out. Borrow this method to deliver a long, slow soaking. Trees prefer infrequent deep watering. Once a week or less for more established trees is sufficient.
Water in a slow drip away from the trunk, long enough to soak the top 12 inches of soil in the drip line. Use a hose on a very slow trickle, a soaker hose, drip irrigation in the proper areas, or this clever method.
Use a five-gallon bucket with small holes to slowly release water to a tree’s deepest roots. Photo: Sacramento Tree Foundation
Use a five-gallon bucket and poke several holes in the bottom. Put the bucket on top of the soil along the drip line. Fill the bucket with water. The water will seep out slowly and deeply into the soil. When it’s empty, move the bucket about three feet away, and repeat the process. Do this until you have made a circle in the drip line around the tree.
You can fill the bucket with water gathered in your daily shower. In a household with several people, you may be able to fill a five-gallon bucket daily. Water early in the morning or after sunset, so you lose less water to evaporation. This is when trees gather moisture naturally.
If you have hard, rocky ground, drill holes one foot deep every three feet around the tree along the drip line. Fill the holes with compost, and then pour water into them. This vertical mulch will encourage the roots to grow.
Finally, bear in mind turf competes with your trees for water. Even if you want to retain some lawn, it’s smart to remove the lawn immediately around your trees and replace it with WaterSmart landscaping.
Enough water for 60,000 Orange County residents can be generated by more efficient release of rainwater from the Prado Dam into the Santa Ana River, according to a new multi-agency report.
During a year of average rainfall, that’s the amount of water currently flowing into the ocean that could be captured for urban use, according to the two co-chairmen of the committee overseeing project. The proposed plan, slated to begin phasing in next year, would enable more rainwater to be absorbed into the county’s major groundwater basin before it reaches the Pacific.
Palm Springs was visited by early morning thunderstorms Sunday. The scattered showers delivered 0.08 inches of rain between about 3 a.m. and 6 a.m., according to the National Weather Service, with additional rain possible Sunday afternoon.
Rainfall varied throughout the rest of the Coachella Valley, ranging from a relatively low 0.04 inches in Palm Desert and Indio to 0.27 inches in Cathedral City.
A UCLA study shows that abnormally heavy rain and snowfall events since as early as the 1980s are intensifying globally due to human-driven climate change, researchers said Tuesday.
“These findings further elevate the urgency of reducing greenhouse gas emissions to prevent even larger impacts down the road,” said senior author Alex Hall, director of the UCLA Center for Climate Science, which is a part of the UCLA Institute of the Environment and Sustainability. “We can now say that extreme precipitation is increasing globally due to human-induced climate change.”
A late-winter storm doused the San Diego area with rain and mountain snow for second day Thursday, but a dry spell lies ahead.
Though the showers generated by the unsettled atmospheric system out of the Gulf of Alaska were more scattered and short-lived than Wednesday’s storms, they added to some significant moisture amounts across the county, according to the National Weather Service.
It’s been a pretty dry winter in San Diego County so the rainfall in the forecast Wednesday is important to help shrink that rainfall deficit. But much rain are we talking about here?
It’s time to hope for a “March miracle.” We badly need rain and won’t get much — if any — over the next week.
The Water News Network is San Diego County’s source for water news and information.
