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9 Dec 2013
Minimum Temperatures - Wed December 11th and THU December 12th DCA Wednesday: Thursday: BWI Wednesda...
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By Quincy - 5 Dec 2013 11:07 PM
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22 Oct 2013 02:09 PM | OKpowdah in General Analyses & Forecasts
Definitely has been fun to watch the influence of the Pacific on the pattern recently. All the tropical activity in the western Pacific has had really nice clear impacts downstream, translating to the very strong ridging along the west coast. The bigg...
12 Oct 2013 10:17 AM | OKpowdah in General Analyses & Forecasts
We're watching another potential major Typhoon recurving in the West Pacific, passing close to Japan by day 4 (Tuesday night ET). The story begins though with just some simple extratropical cyclogenesis in the northern Sea of Japan and the amplificati...
12 Sep 2013 08:23 AM | OKpowdah in General Analyses & Forecasts
The Quasi-Biennial Oscillation (QBO) is a cycle of zonal wind in the equatorial stratosphere with a period that varies between 24 and 30 months. This oscillation is a product of downward propagating alternating wind regimes. The current method of monit...
30 Mar 2013 07:59 AM | bluewave in General Analyses & Forecasts
A new study just out addresses how the PDO can impact global temperatures on a decadal timescale. http://www.climatece...st-decade-15788 The natural variation in this case appears to be changes in wind patterns associated with the Pacific Decadal Osc...