For once, all the weather models agree: We are going to get really, really wet!
As you may be able to discern from the IR view above, the jet stream is aiming right at us, sucking up gigatons of water off the warm ocean between Hawaii and the California coast. Yes, it is one of those iconic “pineapple express” patterns, and this is going to be a big one. We can expect a day of heavy rain and lots of powerful wind.
The storm is expected to arrive in the Bay Area early Thursday morning, with rain and wind lasting all day.
If you have outdoor furniture or any other large, light objects now is the time to move them indoors or out of the wind. Check that your gutters and downspouts are clear. If there are lots of fallen leaves in the street, now is a good time to rake them into a pile away from street drains, or put them into the green bin. Better yet, spread those non-conifer leaves across your garden’s open spaces, where they will not only fertilize the earth, but protect it from erosion by heavy rain.
If you have plants in containers out under the sky, especially if they are succulents or cacti, it might be a good idea to move them to a sheltered spot where the rain will not flood them for hours and hours. Some plants might be killed or damaged by prolonged root flooding.
Trees or bushes with extended branches might be damaged by many hours of high winds. You may be able to protect some of these by tying down the long branches or covering the plants with a tarp that is tied firmly to heavy objects like cinder blocks.
If you have an open composting system, it’s a good idea to cover it with a tarp weighted with bricks or other heavy objects. While the compost will not be killed by a long, heavy rain, such a deep soaking will definitely wash many valuable nutrients down into the ground, where they will eventually be lost into the water table.
I am excited that we are finally getting a beautiful, powerful winter storm. This one looks like the biggest one in years. I can’t wait for those first drops, waking me up Thursday morning early. I hope you will enjoy the storm as much as me!
Want to know more about this coming storm? Check out this blog post from WeatherWest.com.
Below: A water vapor picture, showing how the jet stream is sucking up moisture from the ocean.