[ exact phrase in "" • results by date ]

[ Google-powered • results by relevance ]


News Home

Subscribe to RSS feed

Add NWW headlines to your site (click here)

Sign up for daily updates

Keep Wind Watch online and independent!

Donate $10

Donate $5

Selected Documents

All Documents

Research Links


Press Releases


Publications & Products

Photos & Graphics


Allied Groups

Wind turbine blades sending false images to weather station  

Credit:  Leslie H. Dixon, Staff Writer | Sun Journal | December 1, 2012 | www.sunjournal.com ~~

WOODSTOCK – An apparent intense snow squall that appeared on National Weather Service radar maps over Woodstock on Thursday night was nothing more than radar pulse from the weather station in Gray bouncing off wind turbines on Spruce Mountain.

Although many in Oxford County saw a brief snow squall late Thursday evening that left a dusting on the roads, National Weather Service weather radar maps showed intense snow squalls in a small areas. The sites coincided with wind turbines, such as the 10 on Spruce Mountain and 28 on Mars Hill in Aroostook County.

“It’s an issue nationwide with all sorts of wind farms,” said Margaret Curtis, a meteorologist with the National Weather Service in Gray.

The problem, she said, is that the radar pulse sent out from Gray that is meant to bounce off raindrops also bounces off mountains and turbines.

The radar is sending out 300 to 1,300 pulses per second, which means it can sometimes pick up migrations of birds on a clear day that show up as weather phenomena on the map.

The meteorologists can easily distinguish whether a stationary mountain is causing what they call “ground clutter,” but it is sometimes a little more difficult with moving targets such as wind turbines until they know their exact location, she said.

Once they realize the cause of the disturbance, the weather patches could be filtered out by repositioning the radar higher.

Source:  Leslie H. Dixon, Staff Writer | Sun Journal | December 1, 2012 | www.sunjournal.com

This article is the work of the source indicated. Any opinions expressed in it are not necessarily those of National Wind Watch.

The copyright of this article resides with the author or publisher indicated. As part of its noncommercial effort to present the environmental, social, scientific, and economic issues of large-scale wind power development to a global audience seeking such information, National Wind Watch endeavors to observe “fair use” as provided for in section 107 of U.S. Copyright Law and similar “fair dealing” provisions of the copyright laws of other nations. Send requests to excerpt, general inquiries, and comments via e-mail.

Wind Watch relies entirely
on User Funding
Donate $5 PayPal Donate


News Watch Home

Get the Facts Follow Wind Watch on Twitter

Wind Watch on Facebook


© National Wind Watch, Inc.
Use of copyrighted material adheres to Fair Use.
"Wind Watch" is a registered trademark.