NOAA/NWS document: wind turbines affect weather radar, create false storm impressions

Watts Up With That?

From the Watertown Daily News, and the “law of unintended consequences” department comes an inconvenient truth from the National Weather Service, that upon further investigation appears to be a nationwide problem for the WSR-88D doppler weather radar network used to predict, track, and analyze severe weather. According to NOAA’s Radar operations center, forecasters are faced with “little or no workaround”.

Part of the reason is that the WSR-88D national deployment in the early to mid 1990’s preceded the mass deployment of wind turbines to provide “green energy”. They had no way of knowing then that their field of view would be polluted by an army of rotating blades.

h/t to John Droz for the Watertown Daily News article below.

Document from the National Weather Service lists possible radar interference impact from wind turbines


WATERTOWN — A new document from the National Weather Service expands on potential interference…

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Arctic warming seen in perspective

meteoLCD Weblog

During the first months of 2018 the Arctic temperatures were “unusually” warm, which made most media jump into quasi hysterical writings; an example is The Guardian, never shy of pushing the alarm:

What most media forget to tell, is that after peaking in February, there was a formidable plunge to cooler temperatures in March, as seen on this graph of the Danish Meteorological Service from today:

The blue line corresponds to the freezing point of 0°C; so even at its highest, the average (global) temperatures of the Arctic region above latitude 80° were still “comfortably” in the freezing range; they are now practically “back” to the mean of the 1958 to 2002 period. You will not be surprised that this was ignored by the Guardian!

A look at the revised PAGES2k project will put things into perspective. The PAGES2k consortium was a research project to make a reanalysis of the…

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The SALBY Hamburg conference: phase lag between CO2 and temperature

meteoLCD Weblog

Prof. Murray SALBY presented his conference “Relationship between Greenhouse Gases and Global Temperature” the 18 April 2013 at the University of Hamburg (see Youtube version here and MP4 version here). His presentation was similar, but not identical to that I discussed in a previous post. It was quite technical in several parts (the video shows a very silent public, but this could simply show that German academics are well-mannered), but not overwhelming for someone who is familiar with the usual tools used in signal or time series processing. Nevertheless, it is good idea to go several times through this great presentation (the Quicktime player is handy for making precise stops at a certain slide), and to make some musings on several aspects.

1. The lag between observed CO2 and temperature changes.

In this first comment, I will compare some findings concerning the time lag between the observed measurements…

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