By Paul Homewood
http://www.drroyspencer.com/2018/03/uah-global-temperature-update-for-february-2018-0-20-deg-c/
UAH report another drop in global temperatures for February, following the sharp fall in January.
It is likely we are just starting to see the effects of La Nina, which began last September. There is generally a lag of between 3 and 60 months before atmospheric temperatures are impacted.
Nevertheless, so far La Nina has been a very weak affair, comparable to 2006, when temperature anomalies dipped to about 0.1C.
https://www.esrl.noaa.gov/psd/enso/mei/
What is particularly noticeable this month is how far temperatures have dropped in the NH:
Most predictions suggest La Nina will peter out by the summer:
http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/enso_advisory/
However, we can still expect to see La Nina affecting temperatures for most of this year.
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March 3, 2018 at 06:45AM
Iowa Climate Science Education 