NOAA
ISSUES U.S. WINTER OUTLOOK UPDATE
Forecast for December, January and February
Oct.
20, 2005 � In the first of a two-part update to the U.S. Winter Outlook,
NOAA meteorologists predict this
winter to be warmer than the 30 year norm, yet cooler than last year.
NOAA's heating degree day forecast for December, January and February
projects a 0.7 percent warmer winter than the 30 year normal, but 6.5
percent cooler than last year. Therefore, people can expect, on average,
more cooler days this winter than last. (Click NOAA image for
larger view of forecast winter temperatures for the USA. Click
here for high resolution version. Please credit “NOAA.)
"With
the absence of El Niño and La Niña this year's winter
outlook presents a challenge to seasonal forecasters," said Jim
Laver, director of the NOAA Climate Prediction Center. "Shorter
term climate fluctuations that are best predicted week-by-week are expected
to play the dominate role on the weather patterns this winter,"
he added.
The Winter Outlook Update
The 2005-2006
U. S. winter outlook calls for warmer-than-average temperatures
for much of the central and western United States, including Alaska
and Hawaii. The Midwest, the Mississippi Valley, the Southern Californian
coast and the East Coast have equal chances of above, near, or below
normal temperatures.
The
precipitation outlook calls for wetter-than-average conditions across
most of Arkansas, Louisiana, Oklahoma, northeastern Texas, Hawaii and
northwestern Alaska. The remainder of the country has equal chances
of above, near or below normal precipitation. (Click NOAA image
for larger view of forecast winter precipitation for the USA. Click
here for high resolution version. Please credit “NOAA.)
An equal
chance, either for temperature or precipitation, is predicted when there
is no strong or consistent climate signal for either an above or below
normal conditions during the season. The prediction for areas of "equal
chances" means there is a 50 percent chance for either an above-normal
or below-normal forecast.
NOAA will publish the last update to the 2005-2006 U.S. Winter Outlook
via the Web on Nov. 17. Meteorological winter begins Dec. 1 while astronomical
winter begins Dec. 21.
NOAA,
an agency of the U.S. Department
of Commerce, is dedicated to enhancing economic security and national
safety through the prediction and research of weather and climate-related
events and providing environmental stewardship of the nation's coastal
and marine resources.
Relevant Web Sites
Climate Factors Helping to Shape Winter 2005-2006
NOAA Climate Prediction Center
NOAA
Drought Information Center
El
Niño/Southern Oscillation (ENSO) Diagnostic Discussion
NOAA
Winter Weather Preparedness
Media
Contact:
Carmeyia Gillis, NOAA
Climate Prediction Center, (301) 763-8000 ext. 7163
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