La Niña watch begins

Posted on | June 3, 2010 | 4 Comments

After 16.36* inches of rain recorded for downtown Los Angeles from June 2009-June 2010, ocean conditions indicate a transition from the mildly wet El Niño system that gave Southern California a slightly better than average rainfall year to a dry La Niña one, according to the National Weather Service. An experimental and unofficial outlook map set issued by its Climate Prediction Center lays out a hot and dry 2010/11. Jet Propulsion Laboratory oceanographer Bill Patzert is already betting on a dry La Niña 2010/11 season. “Two years of El Niño are just such a low probability,” he said. “Six out of ten years are dry. I wish I had those odds in Vegas.” For those who think in terms of “normal” rainfall for Los Angeles, he added, “Normal is a cycle on a washing machine.”

*From the NWS California Nevada Forecast Center. NWS Los Angeles / Oxnard records show the total for the same period to be 16.51 inches.


4 Responses to “La Niña watch begins”

  1. Bob
    June 3rd, 2010 @ 9:30 pm

    How does La nina affect air temperature. Cooler than normal summer? Or just cooler winter?

  2. Kevin Wattier
    June 4th, 2010 @ 7:57 am
  3. EmilyGreen
    June 4th, 2010 @ 8:18 am

    Thanks Kevin for the link. Hi Bob. Here is a link to La Nina temperature probability maps from NOAA: and here is a link to NOAA’s La Nina information page:

  4. Rsailor
    August 15th, 2010 @ 7:23 pm

    I think the short answer is yes. La Nina has created cooler than normal late summer conditions for 2010 – in California. And dryer conditions are expected for early 2011 and summer 2011.

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