Thursday, November 19, 2009

Winter 2009-1010 Update: El Niño Influence Continues

See here for other seasonal forecasts, including the current winter energy forecast.

NOAA's Climate Prediction Center winter 2009-10 outlook, updated this morning, continues to expect a pattern strongly affected by El Niño. Like the preliminary outlook issued a month ago, the latest one features warmth from Washington and Oregon southeastward through the Rockies, northern Arizona, and New Mexico and across much of the Midwest to Wisconsin and Michigan. Cool temperatures are predicted from the Gulf Coast through the Southeast to the Mid Atlantic area as far as extreme southern Pennsylvania and New Jersey.

Also consistent with a persistent El Niño is a precipitation pattern with above-average amounts from California through most of Texas, the southern Gulf Coast states, Florida, and the southeastern Atlantic coast.

The main difference from the previous outlook is an increase in the probability for warmer than average temperatures to 50% or above in North and South Dakota, Minnesota, and northernmost Wisconsin and Michigan.

Images (click to enlarge): U.S. winter 2009-2010 temperature and precipitation outlook and most recent Pacific sea-surface temperature (SST) departures from average, from Climate Prediction Center/NOAA


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JanuskieZ said...
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Seasonal Outlook

Latest seasonal forecast: Click here.

Latest 3-month temperature outlook from Climate Prediction Center/NWS/NOAA.