[wxqc] Effect of Seabreeze on WX Quality

[Bob]

I noticed a major jump down in temperature, and up in dew point this
afternoon.  I looked at the radar, and saw something I'd seen before,
but didn't know what it was. A call to KILM told me it's a phenomenon
known as seabreeze. The meteorologist was surprised I was able to track
the temp. drop / dewpoint spike so quickly (I'm using a fan ventilated
tube.Of course, I fail QC for that interval 'cause no-one else tracked
the 10 degree change so rapidly. What we're talking about is the thin
red line bowing to the Northwest. They had the radar in clear air mode
with the gain cranked at the time. 
My location is a little to the West of the + sign for Wilmington. This
crossed my area at about 18:40 local / 22:40 utc. Wind jumped to the
south. Barometer unaffected. 
 
More useless trivia... In case you've not noticed it on Radar before,
the spike heading off to the west is RF noise from the sun setting. 
 
http://n2qew.dyndns.org/WxData/KILM%20Nexrad.PNG
 
http://n2qew.dyndns.org/WxData/Seabreeze.PNG
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