Yes, I have been hearing from many asking me about a La Nina Watch all over the news a couple of weeks back. While ‘the others’ may have one out, officially I do not have one out nor plan to issue one this year like I did last year so read on for details …
Here at Southern California Weather Force, HellVision – the Equatorial Pacific Ocean is constantly monitored each week. Each week a look at the trade winds and ocean temperatures happens toward the end of the weekend. Models here have accurately predicted in the long term what the status of El Nino or La Nina would be like, sometimes even 6 months prior to the start of Fall. La Nina has faded, and it is continuing to fluctuate. However, La Nina is not going to come back. If you want to say a weak La Nina value in meteorology starts at -0.5 and a moderate at -1.0, with a neutral (neither) near 0, then this year I predict the value in the fall to be between -0.2 and -0.5. While -0.5 is a weak La Nina, it will not hold that number for long. We will see warming down there as we hit toward December and the values will go back up near 0 and keep going into the start of an El Nino for Spring of 2022. A brief one-month episode of -0.5 will not affect our weather and nor does it mean a La Nina Watch needs to go out.
So with all that being said, on average this Fall/Winter I am going with a 0.0 to -0.4, which means a neutral season. A neutral season means the season can go either way in terms of how much rain we receive here in Southern California. Neutral seasons tend to do well, however. After the stronger La Nina last year, it would be pretty tough to beat that as that was a once in every 15-20 year event.
So no, in conclusion, officially… ignore this hype of a La Nina Watch … We are far from it, nor will I be issuing one. Everything is going according to schedule this summer. If you missed my Summer 2021 forecast, CLICK HERE. Pay attention to the date it was posted and how June went as expected and same for July… and it quotes, “Of course, Arizona will always get the most activity, but the ridge shoving moisture eastward into Southern California will be in place this time, especially in July. This season however will be one where it fluctuates by month. I see July being active, but between then and September we will see a dry spell … then get whacked again towards the end of Monsoon Season. Monsoon Season goes from June 15th to September 15th.”
So there you have it, there is no La Nina Watch nor do I expect a La Nina to develop. Our rainy season will be a toss-up, but I’ll do my best in September to figure out what kind we will have just like I have so far this Summer.
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