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On May 19, 2011, NOAA released their first forecast for the 2011 Atlantic hurricane season. The organization expected 12–18 named storms, 6–10 hurricanes, and 3–6 major hurricanes would form in the Atlantic during 2011, citing above-normal sea surface temperatures , a weakening La Niña , and the effect of the warm regime of the Atlantic ...
On October 20, 2011, the National Oceanic and Atmospheric Administration's Climate Prediction Center issued its U.S. Winter Outlook. The outlook expected the present La Niña to persist and intensify into the winter, resulting in drier than normal conditions in the drought-stricken states of New Mexico, Oklahoma, Texas, and parts of adjacent states.
Meanwhile, the 2011 Groundhog Day blizzard caused record snowfall in Chicago and forced the city to shutdown. Because this was a La Niña, it brought California the wettest December on record and the summer of 2011 was California's wettest. The Pacific Northwest saw 2011 being one of the coolest, wettest years on record, with temperatures still ...
According to the latest forecast, there is 49% of a La Niña developing between June and August — and an even greater 69% chance of it developing between July and September.
As mentioned earlier, the forecast for a weak La Niña this winter means the temperature outcome could be different than traditional expectations. la_nina_pattern_temps.png.
La Niña isn’t here yet, but has a 60% chance of emerging through November, according to the Climate Prediction Center. Once it arrives, it’ll stick around all winter and likely persist into ...
Based on the astronomical definition, winter begins at the winter solstice, which in 2010 occurred late on December 21 (early on December 22 in EST), and ends at the March equinox, which in 2011 occurred on March 20. [2] Based on the meteorological definition, the first day of winter is December 1 and the last day February 28. [3]
The Climate Prediction Center said there is a 60% chance that La Niña conditions will emerge by the end of November. ... and L'Heureux said the likely La Niña will be a major part of the forecast.