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Addendum to yesterday’s DWR Climate News

Posted by: Maven on June 3, 2009 at 8:01 am

From DWR Meteorologist Elissa Lynn, an addendum to yesterday’s posting of the DWR Climate News:

Author wrongly worded dates of snow survey (supply) products in yesterday’s letter.

To clarify: On June 4 and June 11, the snow surveys section will post the last two updates to the Bulletin 120 for this year.

These updates are for the April-July runoff forecasts for the major Central Valley watersheds. The final water year runoff forecast for conditions as of May 1 was issued on May 8. According to this forecast, the total 2008-2009 water year runoff is forecast to be about 70 percent of average. The last water supply indices of the year were also produced for conditions through May 1 and posted on May 8. Both the Sacramento and San Joaquin river regions are forecast to end in the ‘Dry’ classification.

Additionally, concern came in by deep weather folks that yesterday’s letter suggested a long-range forecast that was portrayed as certain. They certainly are not, and next year could go either way, as usual.

This letter reaches over 1,700 recipients, many of whom appreciate general information, and recognize the inexactitude of long-range projections.

We do have to wait and see what next year brings. CPC posts their weekly El Nino/ La Nina discussions here, and that should be the source of information on whether the oceans are cooling or warming over the tropical Pacific:

http://www.cpc.noaa.gov/products/precip/CWlink/MJO/enso.shtml#discussion

See expert discussions.

Over and out, and we’re still in a drought-

June 3, 2009 · Filed Under Uncategorized

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