Central Park in USHCNv2.5 (October 2012) magically becomes cooler in July in the Dust Bowl years

By Joseph D’Aleo, CCM Remember this story long ago on New York’s Central Park multiple very different data sets to which Steve McIntyre responded here. McIntyre wrote then: …has the temperature of New York City increased in the past 50 years? Figure 1 below is excerpted from their note, about which they observed. Note the…

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NOAA predicts active 2013 Atlantic hurricane season

From NOAA: In its 2013 Atlantic hurricane season outlook issued today, NOAA’s Climate Prediction Center is forecasting an active or extremely active season this year. For the six-month hurricane season, which begins June 1, NOAA’s Atlantic Hurricane Season Outlook says there is a 70 percent likelihood of 13 to 20 named storms (winds of 39 mph or higher),…

Global Warming Over Land Is Real: CU-Boulder, NOAA Study

Image Credit: Compo et al., 2013 From the Huffington Post: The thermometers got it right. The Earth is warming, another study is reporting. Climate scientists recognize that changes in weather observation stations’ immediate surroundings — such as neighboring trees being replaced by heat-absorbing concrete — can eventually throw data from such stations into question. But…

Improbable Maximum Precipitation

Guest post by Willis Eschenbach There’s a new study out from NOAA called “Probable maximum precipitation (PMP) and climate change”, paywalled of course, which claims that global warming will lead to a 20%-30% increase in “probable maximum precipitation”. The abstract says: Probable Maximum Precipitation (PMP) is the greatest accumulation of precipitation for a given duration…